Form990-PF

Department of the Treasury
Internal Revenue Service

Return of Private Foundation
or Section 4947(a)(1) Trust Treated as Private Foundation
right arrowDo not enter social security numbers on this form as it may be made public.
right arrowGo to www.irs.gov/Form990PF for instructions and the latest information.
OMB No. 1545-0047
2023
Open to Public Inspection
For calendar year 2023, or tax year beginning 01-01-2023 , and ending 12-31-2023
Name of foundation
ADULT & PEDIATRIC SPINE RESEARCH
FOUNDATION
Number and street (or P.O. box number if mail is not delivered to street address)PO BOX 2337
  Room/suite
City or town, state or province, country, and ZIP or foreign postal code
SAN ANSELMO, CA94979
A Employer identification number

20-0513178
B Telephone number (see instructions)

(707) 523-2381
C right arrow
G Check all that apply:

D 1. Foreign organizations, check here............. right arrow
2. Foreign organizations meeting the 85%
test, check here and attach computation ... right arrow
E right arrow
H Check type of organization:
F right arrow
I Fair market value of all assets at end
of year (from Part II, col. (c),
line 16)right arrow$10,356,751J Accounting method:
 
(Part I, column (d) must be on cash basis.)
Part I Analysis of Revenue and Expenses (The total of amounts in columns (b), (c), and (d) may not necessarily equal the amounts in column (a) (see instructions).) (a) Revenue and
expenses per
books 		(b) Net investment
income 		(c) Adjusted net
income 		(d) Disbursements
for charitable
purposes
(cash basis only)
Revenue 1 Contributions, gifts, grants, etc., received (attach schedule)  
2 Check right arrow.............
3 Interest on savings and temporary cash investments 38,832 38,832  
4 Dividends and interest from securities...      
5a Gross rents............ 204,037 204,037  
b Net rental income or (loss) -121,872
6a Net gain or (loss) from sale of assets not on line 10  
b Gross sales price for all assets on line 6a  
7 Capital gain net income (from Part IV, line 2)... 0
8 Net short-term capital gain.........  
9 Income modifications...........  
10a Gross sales less returns and allowances  
b Less: Cost of goods sold....  
c Gross profit or (loss) (attach schedule).....    
11 Other income (attach schedule)....... Click to see attachment
List of Attached Documents:
// Content
213,521 213,521 0
12 Total. Add lines 1 through 11........ 456,390 456,390 0
Operating and Administrative Expenses 13 Compensation of officers, directors, trustees, etc. 0 0 0 0
14 Other employee salaries and wages......        
15 Pension plans, employee benefits.......        
16a Legal fees (attach schedule)......... Click to see attachment
List of Attached Documents:
// Content
64,856 0 64,856 0
b Accounting fees (attach schedule)....... Click to see attachment
List of Attached Documents:
// Content
12,551 0 12,551 0
c Other professional fees (attach schedule).... Click to see attachment
List of Attached Documents:
// Content
4,880 0 0 0
17 Interest...............        
18 Taxes (attach schedule) (see instructions)... Click to see attachment
List of Attached Documents:
// Content
141,528 141,528 0 0
19 Depreciation (attach schedule) and depletion... Click to see attachment
List of Attached Documents:
// Content
134,649 138,973 138,973
20 Occupancy..............        
21 Travel, conferences, and meetings.......        
22 Printing and publications..........        
23 Other expenses (attach schedule)....... Click to see list of attachments
List of Attached Documents:
// Content
65,036 62,617 2,419 0
24 Total operating and administrative expenses.
Add lines 13 through 23.......... 423,500 343,118 218,799 0
25 Contributions, gifts, grants paid....... 1,600,000 1,600,000
26 Total expenses and disbursements. Add lines 24 and 25 2,023,500 343,118 218,799 1,600,000
27 Subtract line 26 from line 12:
a Excess of revenue over expenses and disbursements -1,567,110
b Net investment income (if negative, enter -0-) 113,272
c Adjusted net income (if negative, enter -0-)... 0
For Paperwork Reduction Act Notice, see instructions.
Cat. No. 11289X Form 990-PF (2023)
Form 990-PF (2023)
Page 2
Part II Balance Sheets Attached schedules and amounts in the description column
should be for end-of-year amounts only. (See instructions.) 		Beginning of year End of year
(a) Book Value (b) Book Value (c) Fair Market Value
Assets 1 Cash—non-interest-bearing............. 2,357,673 10,510 10,510
2 Savings and temporary cash investments......... 1,435,128 2,371,241 2,371,241
3 Accounts receivable right arrow  
Less: allowance for doubtful accounts right arrow        
4 Pledges receivable right arrow  
Less: allowance for doubtful accounts right arrow        
5 Grants receivable.................      
6 Receivables due from officers, directors, trustees, and other
disqualified persons (attach schedule) (see instructions).....      
7 Other notes and loans receivable (attach schedule) right arrow  
Less: allowance for doubtful accounts right arrow        
8 Inventories for sale or use..............      
9 Prepaid expenses and deferred charges..........      
10a Investments—U.S. and state government obligations (attach schedule)      
b Investments—corporate stock (attach schedule).......      
c Investments—corporate bonds (attach schedule).......      
11 Investments—land, buildings, and equipment: basis right arrow6,519,513
Less: accumulated depreciation (attach schedule) right arrow1,860,622 4,794,000 Click to see attachment
List of Attached Documents:
// Content
4,658,891 		7,975,000
12 Investments—mortgage loans.............      
13 Investments—other (attach schedule)..........      
14 Land, buildings, and equipment: basis right arrow6,452
Less: accumulated depreciation (attach schedule) right arrow6,452      
15 Other assets (describe right arrow)      
16 Total assets (to be completed by all filers—see the
instructions. Also, see page 1, item I) 8,586,801 7,040,642 10,356,751
Liabilities 17 Accounts payable and accrued expenses..........    
18 Grants payable.................    
19 Deferred revenue.................   10,000
20 Loans from officers, directors, trustees, and other disqualified persons    
21 Mortgages and other notes payable (attach schedule)......    
22 Other liabilities (describe right arrow) Click to see attachment
List of Attached Documents:
// Content
3,799 		Click to see attachment
List of Attached Documents:
// Content
14,750
23 Total liabilities (add lines 17 through 22)......... 3,799 24,750
Net Assets or Fund Balances Foundations that follow FASB ASC 958, check here right arrow
and complete lines 24, 25, 29 and 30.
24 Net assets without donor restrictions...........    
25 Net assets with donor restrictions............    
Foundations that do not follow FASB ASC 958, check here right arrow
and complete lines 26 through 30.
26 Capital stock, trust principal, or current funds........ 0 0
27 Paid-in or capital surplus, or land, bldg., and equipment fund 0 0
28 Retained earnings, accumulated income, endowment, or other funds 8,583,002 7,015,892
29 Total net assets or fund balances (see instructions)..... 8,583,002 7,015,892
30 Total liabilities and net assets/fund balances (see instructions). 8,586,801 7,040,642
Part III
Analysis of Changes in Net Assets or Fund Balances
1
Total net assets or fund balances at beginning of year—Part II, column (a), line 29 (must agree with end-of-year figure reported on prior year’s return) ...............
1
8,583,002
2
Enter amount from Part I, line 27a .....................
2
-1,567,110
3
Other increases not included in line 2 (itemize) right arrow
3
0
4
Add lines 1, 2, and 3 ..........................
4
7,015,892
5
Decreases not included in line 2 (itemize) right arrow
5
0
6
Total net assets or fund balances at end of year (line 4 minus line 5)—Part II, column (b), line 29 .
6
7,015,892
Form 990-PF (2023)
Form 990-PF (2023)
Page 3
Part IV
Capital Gains and Losses for Tax on Investment Income
(a) List and describe the kind(s) of property sold (e.g., real estate,
2-story brick warehouse; or common stock, 200 shs. MLC Co.)		 (b)
How acquired
P—Purchase
D—Donation 		(c)
Date acquired
(mo., day, yr.) 		(d)
Date sold
(mo., day, yr.)
1a
b
c
d
e
(e)
Gross sales price 		(f)
Depreciation allowed
(or allowable) 		(g)
Cost or other basis
plus expense of sale 		(h)
Gain or (loss)
(e) plus (f) minus (g)
a
b
c
d
e
Complete only for assets showing gain in column (h) and owned by the foundation on 12/31/69 (l)
Gains (Col. (h) gain minus
col. (k), but not less than -0-) or
Losses (from col.(h))
(i)
F.M.V. as of 12/31/69 		(j)
Adjusted basis
as of 12/31/69 		(k)
Excess of col. (i)
over col. (j), if any
a
b
c
d
e
2 Capital gain net income or (net capital loss) Bracket If gain, also enter in Part I, line 7
If (loss), enter -0- in Part I, line 7		 Bracket 2  
3 Net short-term capital gain or (loss) as defined in sections 1222(5) and (6):
If gain, also enter in Part I, line 8, column (c) (see instructions). If (loss), enter -0-
in Part I, line 8 ................... 		Bracket 3  
Part V
Excise Tax Based on Investment Income (Section 4940(a), 4940(b), 4940(e), or 4948—see instructions)
1a Exempt operating foundations described in section 4940(d)(2), check here right arrow and enter “N/A" on line 1. Bracket for line 1a
Date of ruling or determination letter:   (attach copy of letter if necessary–see instructions) 1 1,574
b All other domestic foundations enter 1.39% (0.0139) of line 27b. Exempt foreign organizations enter 4% (0.04) of Part I, line 12, col. (b)
2 Tax under section 511 (domestic section 4947(a)(1) trusts and taxable foundations only. Others enter -0-) 2 0
3 Add lines 1 and 2........................... 3 1,574
4 Subtitle A (income) tax (domestic section 4947(a)(1) trusts and taxable foundations only. Others enter -0-) 4 0
5 Tax based on investment income. Subtract line 4 from line 3. If zero or less, enter -0- ..... 5 1,574
6 Credits/Payments:
a 2023 estimated tax payments and 2022 overpayment credited to 2023 6a 0
b Exempt foreign organizations—tax withheld at source...... 6b 0
c Tax paid with application for extension of time to file (Form 8868)... 6c 0
d Backup withholding erroneously withheld .......... 6d 0
7 Total credits and payments. Add lines 6a through 6d.............. 7 0
8 Enter any penalty for underpayment of estimated tax. Check here if Form 2220 is attached. 8 92
9 Tax due. If the total of lines 5 and 8 is more than line 7, enter amount owed.......right arrow 9 1,666
10 Overpayment. If line 7 is more than the total of lines 5 and 8, enter the amount overpaid...right arrow 10  
11 Enter the amount of line 10 to be: Credited to 2024 estimated taxright arrow   Refundedright arrow 11  
Form 990-PF (2023)
Form 990-PF (2023)
Page 4
Part VI-A
Statements Regarding Activities
1a
During the tax year, did the foundation attempt to influence any national, state, or local legislation or did
Yes
No
it participate or intervene in any political campaign? ....................
1a
 
No
b
Did it spend more than $100 during the year (either directly or indirectly) for political purposes? See the instructions
for the definition.................................
1b
 
No
If the answer is "Yes" to 1a or 1b, attach a detailed description of the activities and copies of any materials
published or distributed by the foundation in connection with the activities.
c
Did the foundation file Form 1120-POL for this year?.....................
1c
 
No
d
Enter the amount (if any) of tax on political expenditures (section 4955) imposed during the year:
(1) On the foundation. right arrow$ 0(2) On foundation managers.right arrow$ 0
e
Enter the reimbursement (if any) paid by the foundation during the year for political expenditure tax imposed
on foundation managers.right arrow$ 0
2
Has the foundation engaged in any activities that have not previously been reported to the IRS?.......
2
 
No
If "Yes," attach a detailed description of the activities.
3
Has the foundation made any changes, not previously reported to the IRS, in its governing instrument, articles
of incorporation, or bylaws, or other similar instruments? If "Yes," attach a conformed copy of the changes....
3
 
No
4a
Did the foundation have unrelated business gross income of $1,000 or more during the year?.........
4a
 
No
b
If "Yes," has it filed a tax return on Form 990-T for this year?...................
4b
 
 
5
Was there a liquidation, termination, dissolution, or substantial contraction during the year?.........
5
 
No
If "Yes," attach the statement required by General Instruction T.
6
Are the requirements of section 508(e) (relating to sections 4941 through 4945) satisfied either:
round bullet By language in the governing instrument, or
round bullet By state legislation that effectively amends the governing instrument so that no mandatory directions
that conflict with the state law remain in the governing instrument? ................
6
Yes
 
7
Did the foundation have at least $5,000 in assets at any time during the year? If "Yes," complete Part II, col. (c),
and Part XIV..................................
7
Yes
 
8a
Enter the states to which the foundation reports or with which it is registered (see instructions)
right arrowCA
b
If the answer is "Yes" to line 7, has the foundation furnished a copy of Form 990-PF to the Attorney
General (or designate) of each state as required by General Instruction G? If "No," attach explanation .
8b
Yes
 
9
Is the foundation claiming status as a private operating foundation within the meaning of section 4942(j)(3)
or 4942(j)(5) for calendar year 2023 or the taxable year beginning in 2023? See the instructions for Part XIII.
If "Yes," complete Part XIII .............................
9
 
No
10
Did any persons become substantial contributors during the tax year? If "Yes," attach a schedule listing their names
and addresses. ...............................
10
 
No
11
At any time during the year, did the foundation, directly or indirectly, own a controlled entity within the
meaning of section 512(b)(13)? If "Yes," attach schedule. See instructions .............
11
 
No
12
Did the foundation make a distribution to a donor advised fund over which the foundation or a disqualified person had
advisory privileges? If "Yes," attach statement. See instructions.................
12
 
No
13
Did the foundation comply with the public inspection requirements for its annual returns and exemption application?
13
Yes
 
Website addressright arrowN/A
14
The books are in care ofright arrowSOPHIE PAPPAS Telephone no.right arrow (415) 785-7019

Located atright arrow76 BROOKWOOD AVESANTA ROSACA ZIP+4right arrow95404
15
Section 4947(a)(1) nonexempt charitable trusts filing Form 990-PF in lieu of Form 1041 —check here .........right arrow
and enter the amount of tax-exempt interest received or accrued during the year ........right arrow
15
 
16 At any time during calendar year 2023, did the foundation have an interest in or a signature or other authority over YesNo
a bank, securities, or other financial account in a foreign country? .................
16   No
See the instructions for exceptions and filing requirements for FinCEN Form 114. If "Yes", enter the name of the foreign
country right arrow
Form 990-PF (2023)
Form 990-PF (2023)
Page 5
Part VI-B
Statements Regarding Activities for Which Form 4720 May Be Required
File Form 4720 if any item is checked in the "Yes" column, unless an exception applies.
Yes
No
1a
During the year did the foundation (either directly or indirectly):
(1) Engage in the sale or exchange, or leasing of property with a disqualified person? ...........
1a(1)
 
No
(2) Borrow money from, lend money to, or otherwise extend credit to (or accept it from)
a disqualified person? ..............................
1a(2)
 
No
(3) Furnish goods, services, or facilities to (or accept them from) a disqualified person? ...........
1a(3)
 
No
(4) Pay compensation to, or pay or reimburse the expenses of, a disqualified person? ............
1a(4)
 
No
(5) Transfer any income or assets to a disqualified person (or make any of either available
for the benefit or use of a disqualified person)? ......................
1a(5)
 
No
(6) Agree to pay money or property to a government official? (Exception. Check "No"
if the foundation agreed to make a grant to or to employ the official for a period
after termination of government service, if terminating within 90 days.) ...............
1a(6)
 
No
b
If any answer is "Yes" to 1a(1)–(6), did any of the acts fail to qualify under the exceptions described in Regulations
section 53.4941(d)-3 or in a current notice regarding disaster assistance? See instructions ..........
1b
 
 
c
Organizations relying on a current notice regarding disaster assistance check here ........right arrow
d
Did the foundation engage in a prior year in any of the acts described in 1a, other than excepted acts,
that were not corrected before the first day of the tax year beginning in 2023? .............
1d
 
No
2
Taxes on failure to distribute income (section 4942) (does not apply for years the foundation was a private
operating foundation defined in section 4942(j)(3) or 4942(j)(5)):
a
At the end of tax year 2023, did the foundation have any undistributed income (Part XII, lines 6d
and 6e) for tax year(s) beginning before 2023?....................
2a
 
No
If "Yes," list the years right arrow20, 20, 20, 20
b
Are there any years listed in 2a for which the foundation is not applying the provisions of section 4942(a)(2)
(relating to incorrect valuation of assets) to the year’s undistributed income? (If applying section 4942(a)(2)
to all years listed, answer "No" and attach statement—see instructions.) ..............
2b
 
 
c
If the provisions of section 4942(a)(2) are being applied to any of the years listed in 2a, list the years here.
right arrow20, 20, 20, 20
3a
Did the foundation hold more than a 2% direct or indirect interest in any business enterprise at
any time during the year? ..............................
3a
 
No
b
If "Yes," did it have excess business holdings in 2023 as a result of (1) any purchase by the foundation
or disqualified persons after May 26, 1969; (2) the lapse of the 5-year period (or longer period approved
by the Commissioner under section 4943(c)(7)) to dispose of holdings acquired by gift or bequest; or (3)
the lapse of the 10-, 15-, or 20-year first phase holding period? (Use Schedule C, Form 4720, to determine
if the foundation had excess business holdings in 2023.) .....................
3b
 
 
4a
Did the foundation invest during the year any amount in a manner that would jeopardize its charitable purposes?
4a
 
No
b
Did the foundation make any investment in a prior year (but after December 31, 1969) that could jeopardize its
charitable purpose that had not been removed from jeopardy before the first day of the tax year beginning in 2023? ..
4b
 
No
Form 990-PF (2023)
Form 990-PF (2023)
Page 6
Part VI-B
Statements Regarding Activities for Which Form 4720 May Be Required (continued)
5a
During the year did the foundation pay or incur any amount to:
Yes
No
(1) Carry on propaganda, or otherwise attempt to influence legislation (section 4945(e))? ..........
5a(1)
 
No
(2) Influence the outcome of any specific public election (see section 4955); or to carry
on, directly or indirectly, any voter registration drive? ....................
5a(2)
 
No
(3) Provide a grant to an individual for travel, study, or other similar purposes? .............
5a(3)
 
No
(4) Provide a grant to an organization other than a charitable, etc., organization described
in section 4945(d)(4)(A)? See instructions ........................
5a(4)
 
No
(5) Provide for any purpose other than religious, charitable, scientific, literary, or
educational purposes, or for the prevention of cruelty to children or animals? .............
5a(5)
 
No
b
If any answer is "Yes" to 5a(1)–(5), did any of the transactions fail to qualify under the exceptions described in
Regulations section 53.4945 or in a current notice regarding disaster assistance? See instructions ........
5b
 
 
c
Organizations relying on a current notice regarding disaster assistance check .........right arrow
d
If the answer is "Yes" to question 5a(4), does the foundation claim exemption from the
tax because it maintained expenditure responsibility for the grant? .................
5d
 
 
If "Yes," attach the statement required by Regulations section 53.4945–5(d).
6a
Did the foundation, during the year, receive any funds, directly or indirectly, to pay premiums on
a personal benefit contract? .............................
6a
 
No
b
Did the foundation, during the year, pay premiums, directly or indirectly, on a personal benefit contract? ....
6b
 
No
If "Yes" to 6b, file Form 8870.
7a
At any time during the tax year, was the foundation a party to a prohibited tax shelter transaction?
7a
 
No
b
If "Yes", did the foundation receive any proceeds or have any net income attributable to the transaction? .....
7b
 
 
8
Is the foundation subject to the section 4960 tax on payment(s) of more than $1,000,000 in remuneration or
excess parachute payment during the year? .........................
8
 
No
Part VII
Information About Officers, Directors, Trustees, Foundation Managers, Highly Paid Employees,
and Contractors
1 List all officers, directors, trustees, foundation managers and their compensation. See instructions
(a) Name and address (b) Title, and average
hours per week
devoted to position 		(c) Compensation
 (If not paid, enter
-0-) 		(d) Contributions to employee benefit plans and deferred compensation (e) Expense account,
other allowances
PETER B PAPPAS MD DIRECTOR
10.00 		0 0 0
PO BOX 2337
SAN ANSELMO,CA94979
SOPHIE PAPPAS DIRECTOR
10.00 		0 0 0
PO BOX 2337
SAN ANSELMO,CA94979
2 Compensation of five highest-paid employees (other than those included on line 1—see instructions). If none, enter “NONE."
(a) Name and address of each employee paid more than $50,000 (b) Title, and average
hours per week
devoted to position 		(c) Compensation (d) Contributions to
employee benefit
plans and deferred
compensation 		(e) Expense account,
other allowances
NONE
Total number of other employees paid over $50,000...................right arrow 0
Form 990-PF (2023)
Form 990-PF (2023)
Page 7
Part VII
Information About Officers, Directors, Trustees, Foundation Managers, Highly Paid Employees,
and Contractors (continued)
3 Five highest-paid independent contractors for professional services (see instructions). If none, enter "NONE".
(a) Name and address of each person paid more than $50,000 (b) Type of service (c) Compensation
NONE
Total number of others receiving over $50,000 for professional services.............right arrow0
Part VIII-A
Summary of Direct Charitable Activities
List the foundation’s four largest direct charitable activities during the tax year. Include relevant statistical information such as the number of organizations and other beneficiaries served, conferences convened, research papers produced, etc. Expenses
1 THE FOUNDATION MADE GRANTS TO FURTHER RESEARCH IN THE FIELD OF SPINAL PATHOLOGY. 1,000,000
2 THE FOUNDATION PROVIDED FUNDING FOR SCHOLARSHIPS TO BE GRANTED BY VARIOUS UNIVERSITIES TO STUDENTS. 600,000
3  
4  
Part VIII-B
Summary of Program-Related Investments (see instructions)
Describe the two largest program-related investments made by the foundation during the tax year on lines 1 and 2. Amount
1  
2  
All other program-related investments. See instructions.
3  
Total. Add lines 1 through 3.........................right arrow0
Form 990-PF (2023)
Form 990-PF (2023)
Page 8
Part IX
Minimum Investment Return (All domestic foundations must complete this part. Foreign foundations, see instructions.)
1
Fair market value of assets not used (or held for use) directly in carrying out charitable, etc.,
purposes:
a
Average monthly fair market value of securities...................
1a
0
b
Average of monthly cash balances.......................
1b
2,905,943
c
Fair market value of all other assets (see instructions)................
1c
7,975,000
d
Total (add lines 1a, b, and c).........................
1d
10,880,943
e
Reduction claimed for blockage or other factors reported on lines 1a and
1c (attach detailed explanation) .............
1e
0
2
Acquisition indebtedness applicable to line 1 assets..................
2
0
3
Subtract line 2 from line 1d.........................
3
10,880,943
4
Cash deemed held for charitable activities. Enter 1.5% (0.015) of line 3 (for greater amount, see
instructions) .............................
4
163,214
5
Net value of noncharitable-use assets. Subtract line 4 from line 3. ............
5
10,717,729
6
Minimum investment return. Enter 5% (0.05) of line 5................
6
535,886
Part X
Distributable Amount (see instructions) (Section 4942(j)(3) and (j)(5) private operating foundations and certain foreign organizations check here right arrow and do not complete this part.)
1
Minimum investment return from Part IX, line 6..................
1
535,886
2a
Tax on investment income for 2022 from Part V, line 5.......
2a
1,574
b
Income tax for 2022. (This does not include the tax from Part V.) ...
2b
 
c
Add lines 2a and 2b............................
2c
1,574
3
Distributable amount before adjustments. Subtract line 2c from line 1............
3
534,312
4
Recoveries of amounts treated as qualifying distributions................
4
0
5
Add lines 3 and 4............................
5
534,312
6
Deduction from distributable amount (see instructions).................
6
0
7
Distributable amount as adjusted. Subtract line 6 from line 5. Enter here and on Part XII, line 1 ...
7
534,312
Part XI
Qualifying Distributions (see instructions)
1
Amounts paid (including administrative expenses) to accomplish charitable, etc., purposes:
a
Expenses, contributions, gifts, etc.—total from Part I, column (d), line 26 ..........
1a
1,600,000
b
Program-related investments—total from Part VIII-B..................
1b
0
2
Amounts paid to acquire assets used (or held for use) directly in carrying out charitable, etc.,
purposes...............................
2
 
3
Amounts set aside for specific charitable projects that satisfy the:
a
Suitability test (prior IRS approval required)....................
3a
 
b
Cash distribution test (attach the required schedule) .................
3b
 
4
Qualifying distributions. Add lines 1a through 3b. Enter here and on Part XII, line 4. .......
4
1,600,000
Form 990-PF (2023)
Form 990-PF (2023)
Page 9
Part XII
Undistributed Income (see instructions)
(a)
Corpus 		(b)
Years prior to 2022 		(c)
2022 		(d)
2023
1 Distributable amount for 2023 from Part X, line 7 534,312
2 Undistributed income, if any, as of the end of 2022:
a Enter amount for 2022 only....... 608,657
b Total for prior years:2019, 20, 20 507,586
3 Excess distributions carryover, if any, to 2022:
a From 2018......  
b From 2019......  
c From 2020......  
d From 2021......  
e From 2022......  
f Total of lines 3a through e ........ 0
4Qualifying distributions for 2023 from Part
XI, line 4: right arrow$ 1,600,000
a Applied to 2022, but not more than line 2a 608,657
b Applied to undistributed income of prior years
(Election required—see instructions)..... 		Click to see attachment
List of Attached Documents:
// Content
507,586
c Treated as distributions out of corpus (Election
required—see instructions)........ 		0
d Applied to 2023 distributable amount..... 483,757
e Remaining amount distributed out of corpus 0
5 Excess distributions carryover applied to 2023. 0 0
(If an amount appears in column (d), the
same amount must be shown in column (a).)
6Enter the net total of each column as
indicated below:
a Corpus. Add lines 3f, 4c, and 4e. Subtract line 5 0
b Prior years’ undistributed income. Subtract
line 4b from line 2b .......... 		0
c Enter the amount of prior years’ undistributed
income for which a notice of deficiency has
been issued, or on which the section 4942(a)
tax has been previously assessed...... 		0
d Subtract line 6c from line 6b. Taxable amount
—see instructions ........... 		0
e Undistributed income for 2022. Subtract line
4a from line 2a. Taxable amount—see
instructions ............. 		0
f Undistributed income for 2023. Subtract
lines 4d and 5 from line 1. This amount must
be distributed in 2024 .......... 		50,555
7 Amounts treated as distributions out of
corpus to satisfy requirements imposed by
section 170(b)(1)(F) or 4942(g)(3) (Election may
be required - see instructions) ....... 		0
8 Excess distributions carryover from 2018 not
applied on line 5 or line 7 (see instructions) ... 		0
9 Excess distributions carryover to 2024.
Subtract lines 7 and 8 from line 6a ...... 		0
10 Analysis of line 9:
a Excess from 2019....  
b Excess from 2020....  
c Excess from 2021....  
d Excess from 2022....  
e Excess from 2023....  
Form 990-PF (2023)
Form 990-PF (2023)
Page 10
Part XIII
Private Operating Foundations (see instructions and Part VI-A, question 9)
1a If the foundation has received a ruling or determination letter that it is a private operating
foundation, and the ruling is effective for 2023, enter the date of the ruling ...... right arrow
 
b Check box to indicate whether the organization is a private operating foundation described in section or
2a Enter the lesser of the adjusted net
income from Part I or the minimum
investment return from Part IX for each
year listed .......... 		Tax year Prior 3 years (e) Total
(a) 2023 (b) 2022 (c) 2021 (d) 2020
         
b 85% (0.85) of line 2a .........          
c Qualifying distributions from Part XI,
line 4 for each year listed ..... 		         
d Amounts included in line 2c not used directly
for active conduct of exempt activities .......... 		         
e Qualifying distributions made directly
for active conduct of exempt activities.
Subtract line 2d from line 2c .... 		         
3 Complete 3a, b, or c for the
alternative test relied upon:
a “Assets" alternative test—enter:
(1) Value of all assets ......          
(2) Value of assets qualifying
under section 4942(j)(3)(B)(i)		          
b “Endowment" alternative test— enter 2/3
of minimum investment return shown in
Part IX, line 6 for each year listed .. 		         
c “Support" alternative test—enter:
(1) Total support other than gross
investment income (interest,
dividends, rents, payments
on securities loans (section
512(a)(5)), or royalties) .... 		         
(2) Support from general public
and 5 or more exempt
organizations as provided in
section 4942(j)(3)(B)(iii).... 		         
(3) Largest amount of support
from an exempt organization		          
(4) Gross investment income          
Part XIV
Supplementary Information (Complete this part only if the foundation had $5,000 or more in
assets at any time during the year—see instructions.)
1Information Regarding Foundation Managers:
aList any managers of the foundation who have contributed more than 2% of the total contributions received by the foundation
before the close of any tax year (but only if they have contributed more than $5,000). (See section 507(d)(2).)
PETER B PAPPAS MD
SOPHIE PAPPAS
bList any managers of the foundation who own 10% or more of the stock of a corporation (or an equally large portion of the
ownership of a partnership or other entity) of which the foundation has a 10% or greater interest.
2Information Regarding Contribution, Grant, Gift, Loan, Scholarship, etc., Programs:
Check here right arrow
aThe name, address, and telephone number or email address of the person to whom applications should be addressed:
bThe form in which applications should be submitted and information and materials they should include:
cAny submission deadlines:
dAny restrictions or limitations on awards, such as by geographical areas, charitable fields, kinds of institutions, or other
factors:
Form 990-PF (2023)
Form 990-PF (2023)
Page 11
Part XIV
Supplementary Information (continued)
3 Grants and Contributions Paid During the Year or Approved for Future Payment
Recipient If recipient is an individual,
show any relationship to
any foundation manager
or substantial contributor
 Foundation
status of
recipient 		Purpose of grant or
contribution 		Amount
Name and address (home or business)
aPaid during the year

UC DAVIS

202 COUSTEAU PLACE SUITE 185
DAVIS,CA95618 		NONE PC RESEARCH IN SPINAL PATHOLOGY. 1,000,000

ST IGNATIUS COLLEGE PREP

2001 37TH AVENUE
SAN FRANCISCO,CA94116 		NONE PC FUNDING FOR SCHOLARSHIPS TO BE GRANTED BY THE SCHOOL 100,000

UNIVERSITY OF THE PACIFIC

3601 PACIFIC AVENUE
STOCKTON,CA95211 		NONE PC FUNDING FOR SCHOLARSHIPS TO BE GRANTED BY THE SCHOOL 100,000

UNIVERSITY OF SAN FRANCISCO

2130 FULTON STREET
SAN FRANCISCO,CA94117 		NONE PC FUNDING FOR SCHOLARSHIPS TO BE GRANTED BY THE SCHOOL 100,000

UNIVERSITY OF SOUTHERN CALIFORNIA

1150 S OLIVE STREET SUITE 1650
LOS ANGELES,CA90015 		NONE PC FUNDING FOR SCHOLARSHIPS TO BE GRANTED BY THE SCHOOL 100,000

SAINT PATRICK SAINT VINCENT

1500 BENICIA RD
VALLEJO,CA94591 		NONE PC FUNDING FOR SCHOLARSHIPS TO BE GRANTED BY THE SCHOOL 100,000

UCSF FOUNDATION

2001 THE EMBARCADERO 3RD FLOOR
SAN FRANCISCO,CA94133 		NONE PC FUNDING FOR SCHOLARSHIPS TO BE GRANTED BY THE SCHOOL 100,000
Total .................................right arrow 3a 1,600,000
bApproved for future payment
Total ................................. right arrow 3b 0
Form 990-PF (2023)
Form 990-PF (2023)
Page 12
Part XV-A
Analysis of Income-Producing Activities
Enter gross amounts unless otherwise indicated. Unrelated business income Excluded by section 512, 513, or 514 (e)
Related or exempt
function income
(See instructions.)
1Program service revenue: (a)
Business code 		(b)
Amount 		(c)
Exclusion code 		(d)
Amount
a
b
c
d
e
f
gFees and contracts from government agencies          
2 Membership dues and assessments ....          
3 Interest on savings and temporary cash
investments ........... 		    14 38,832  
4 Dividends and interest from securities ....          
5 Net rental income or (loss) from real estate:
aDebt-financed property......          
bNot debt-financed property..... 531120 -121,872      
6 Net rental income or (loss) from personal property          
7 Other investment income .....          
8 Gain or (loss) from sales of assets other than
inventory ............ 		         
9 Net income or (loss) from special events:          
10 Gross profit or (loss) from sales of inventory          
11 Other revenue:
aOTHER INCOME: AMOUNTS PAID TO THE FOUNDATION TO CORRECT PRIOR ACTS & GRANTS 		        213,521
b
c
d
e
12 Subtotal. Add columns (b), (d), and (e) .. -121,872 38,832 213,521
13Total. Add line 12, columns (b), (d), and (e)..................
13
130,481
(See worksheet in line 13 instructions to verify calculations.)
Part XV-B
Relationship of Activities to the Accomplishment of Exempt Purposes
Line No.
DownArrow 		Explain below how each activity for which income is reported in column (e) of Part XV-A contributed importantly to
the accomplishment of the foundation’s exempt purposes (other than by providing funds for such purposes). (See
instructions.)
11A RENT RECEIVED.
Form 990-PF (2023)
Form 990-PF (2023)
Page 13
Part XVI
Information Regarding Transfers To and Transactions and Relationships With Noncharitable Exempt Organizations
1
Did the organization directly or indirectly engage in any of the following with any other organization described in section 501(c) (other than section 501(c)(3) organizations) or in section 527, relating to political organizations?
Yes
No
a
Transfers from the reporting foundation to a noncharitable exempt organization of:
(1) Cash...................................
1a(1)
 
No
(2) Other assets.................................
1a(2)
 
No
b
Other transactions:
(1) Sales of assets to a noncharitable exempt organization....................
1b(1)
 
No
(2) Purchases of assets from a noncharitable exempt organization..................
1b(2)
 
No
(3) Rental of facilities, equipment, or other assets.......................
1b(3)
 
No
(4) Reimbursement arrangements...........................
1b(4)
 
No
(5) Loans or loan guarantees.............................
1b(5)
 
No
(6) Performance of services or membership or fundraising solicitations................
1b(6)
 
No
c
Sharing of facilities, equipment, mailing lists, other assets, or paid employees..............
1c
 
No
d
If the answer to any of the above is "Yes," complete the following schedule. Column (b) should always show the fair market value
of the goods, other assets, or services given by the reporting foundation. If the foundation received less than fair market value
in any transaction or sharing arrangement, show in column (d) the value of the goods, other assets, or services received.
(a) Line No. (b) Amount involved (c) Name of noncharitable exempt organization (d) Description of transfers, transactions, and sharing arrangements
2a
Is the foundation directly or indirectly affiliated with, or related to, one or more tax-exempt organizations
described in section 501(c) (other than section 501(c)(3)) or in section 527? ...........
b
If "Yes," complete the following schedule.

(a) Name of organization (b) Type of organization (c) Description of relationship
Sign Here
Under penalties of perjury, I declare that I have examined this return, including accompanying schedules and statements, and to the best of my knowledge and belief, it is true, correct, and complete. Declaration of preparer (other than taxpayer) is based on all information of which preparer has any knowledge.
right arrow right arrow
May the IRS discuss this return
with the preparer shown below?
See instructions.
Signature of officer or trustee Date Title
Paid Preparer Use Only Print/Type preparer's name Preparer's Signature Date Check if self-
employed right arrow		 PTIN
Firm's name SmallBullet
 Firm's EIN SmallBullet
Firm's address SmallBullet


 Phone no.
Form 990-PF (2023)
Additional Data


Software ID:  
Software Version:  


Form 990PF - Special Condition Description:
Special Condition Description

TY 2023 AccountingFeesSchedule
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Category Amount Net Investment Income Adjusted Net Income Disbursements for Charitable Purposes
ACCOUNTING 12,551 0 12,551 0

Note: To capture the full content of this document, please select landscape mode (11" x 8.5") when printing.

TY 2023 AmortizationSchedule
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Description of Amortized Expenses Date Acquired, Completed, or Expended Amount Amortized Deduction for Prior Years Amortization Method Current Year Amortization Net Investment Income Adjusted Net Income Total Amount of Amortization
ENGINEERING PERMIT 2018-12-01 6,900 1,878 180.000000000000 460 460 460 2,338

TY 2023 AppliedToPriorYearElection
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Election:
THE FOUNDATION WAS REQUIRED TO RESTATE THEIR UNDISTRIBUTED INCOME DUE TO AN IRS AUDIT. THE AMOUNTS LISTED ARE A DIRECT RESULT OF THE AUDIT. THE FOUNDATION IS ELECTING TO APPLY PART OF THEIR UNDISTRIBUTED INCOME TO PRIOR YEARS.

Note: To capture the full content of this document, please select landscape mode (11" x 8.5") when printing.

TY 2023 DepreciationSchedule
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Description of Property Date Acquired Cost or Other Basis Prior Years' Depreciation Computation Method Rate /
Life (# of years)		 Current Year's Depreciation Expense Net Investment Income Adjusted Net Income Cost of Goods Sold Not Included
NEW FIREPLACE IN RENTAL - MATERIALS ONLY 2011-07-21 3,462 3,462 SL 7.000000000000 0 0 0  
SHAMROCK EXP FOR INSTALL FIRPLACE - MATERIALS ONLY 2011-08-23 2,990 2,990 SL 7.000000000000 0 0 0  
BUILDING - 1670 CHESTNUT, SF 2013-06-11 2,000,000 489,316 SL 39.000000000000 51,282 51,282 51,282  
LAND - 1670 CHESTNUT, SF 2013-06-11 500,000   L   0 0 0  
IMPROVEMENTS - CHESTNUT 2019-07-01 38,000 4,779 SL 27.500000000000 1,382 1,382 1,382  
REMODEL UNIT 2018-12-01 19,500 2,866 SL 27.500000000000 709 709 709  
MAILBOX INTERCOM 2018-12-01 2,573 2,573 200DB 5.000000000000 0 0 0  
RETROFIT 2020-07-01 26,000 4,333 SL 15.000000000000 1,733 1,733 1,733  
LAND - 289 MARINA BLVD, SF 2007-08-08 823,239   L   0 0 0  
BUILDING - 289 MARINA BLVD, SF 2007-08-08 2,883,469 1,136,684 SL 39.000000000000 73,935 73,935 73,935  
NEW ROOF - 289 MARINA BLVD, SF 2015-10-15 12,200 2,256 SL 39.000000000000 313 313 313  
ROOF REPAIR 2015-10-20 30,000 5,512 SL 39.000000000000 769 769 769  
ROOF REPAIR 2020-07-01 5,000 315 SL 39.000000000000 128 128 128  
PLUMBING 2020-07-01 37,475 2,362 SL 39.000000000000 961 961 961  
TILING 2020-07-01 10,043 1,675 SL 15.000000000000 670 670 670  
REMODEL 2020-07-01 29,777 4,963 SL 15.000000000000 1,985 1,985 1,985  
NEW FLOORS 2021-07-01 12,600   SL 15.000000000000 0 840 840  
PLUMBING 2021-07-01 6,977 261 SL 39.000000000000 179 179 179  
SEISMIC UPGRADE 2021-07-01 6,000 225 SL 39.000000000000 154 154 154  
ELECTRICAL UPGRADE GROUND FLOORS 2021-07-01 17,500 655 SL 39.000000000000 449 449 449  
HARDWOOD FLOORS UNIT 5 2021-07-01 5,000   SL 15.000000000000 0 333 333  
HARDWOOD FLOORS UNIT 1 2021-07-01 5,000   SL 15.000000000000 0 333 333  
ELECTRICAL UPGRADE UNIT 1 AND 5 2021-07-01 6,760   SL 15.000000000000 0 451 451  
REMODEL UNIT 1 2021-07-01 12,000   SL 15.000000000000 0 800 800  
FINISHED REMODEL OF UNIT WITH KITCHEN 2021-07-01 13,000   SL 15.000000000000 0 867 867  
REMODEL BATHROOM UNIT 6 2021-07-01 5,500   SL 15.000000000000 0 367 367  
LEASEHOLD IMPROVEMENT 2022-12-31 5,000   SL 15.000000000000 0 333 333  

TY 2023 InvestmentsLandSchedule2
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Category/ Item Cost/Other Basis Accumulated Depreciation Book Value End of Year Fair Market Value
BUILDING - 1670 CHESTNUT, SF 2,000,000 540,598 1,459,402  
LAND - 1670 CHESTNUT, SF 500,000 0 500,000  
IMPROVEMENTS - CHESTNUT 38,000 6,161 31,839  
ENGINEERING PERMIT 6,900 2,338 4,562  
REMODEL UNIT 19,500 3,575 15,925  
MAILBOX INTERCOM 2,573 2,573 0  
RETROFIT 26,000 6,066 19,934  
LAND - 289 MARINA BLVD, SF 823,239 0 823,239  
BUILDING - 289 MARINA BLVD, SF 2,883,469 1,210,619 1,672,850  
NEW ROOF - 289 MARINA BLVD, SF 12,200 2,569 9,631  
ROOF REPAIR 30,000 6,281 23,719  
ROOF REPAIR 5,000 443 4,557  
PLUMBING 37,475 3,323 34,152  
TILING 10,043 2,345 7,698  
REMODEL 29,777 6,948 22,829  
NEW FLOORS 12,600 12,600 0  
PLUMBING 6,977 440 6,537  
SEISMIC UPGRADE 6,000 379 5,621  
ELECTRICAL UPGRADE GROUND FLOORS 17,500 1,104 16,396  
HARDWOOD FLOORS UNIT 5 5,000 5,000 0  
HARDWOOD FLOORS UNIT 1 5,000 5,000 0  
ELECTRICAL UPGRADE UNIT 1 AND 5 6,760 6,760 0  
REMODEL UNIT 1 12,000 12,000 0  
FINISHED REMODEL OF UNIT WITH KITCHEN 13,000 13,000 0  
REMODEL BATHROOM UNIT 6 5,500 5,500 0  
LEASEHOLD IMPROVEMENT 5,000 5,000 0  

TY 2023 LegalFeesSchedule
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Category Amount Net Investment Income Adjusted Net Income Disbursements for Charitable Purposes
LEGAL 64,856 0 64,856 0


TY 2023 OtherExpensesSchedule
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Description Revenue and Expenses per Books Net Investment Income Adjusted Net Income Disbursements for Charitable Purposes
OTHER ADMINISTRATIVE EXPENSES 2,419 0 2,419 0
CLEANING 2,400 2,400   0
UTILITIES 11,007 11,007   0
INSURANCE 6,286 6,286   0
OTHER 9,240 9,240   0
REPAIRS AND MAINTENANCE 5,900 5,900   0
INSURANCE 4,374 4,374   0
REPAIRS AND MAINTENANCE 22,950 22,950   0
AMORTIZATION 460 460   0


TY 2023 OtherIncomeSchedule2
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Description Revenue And Expenses Per Books Net Investment Income Adjusted Net Income
OTHER INCOME: AMOUNTS PAID TO THE FOUNDATION TO CORRECT PRIOR ACTS & GRANTS 213,521 213,521 0


TY 2023 OtherLiabilitiesSchedule
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Description Beginning of Year - Book Value End of Year - Book Value
REIMBURSABLE EXPENSES INCURRED ON BEHALF OF THE FDTN BY A DIRECTOR 3,799 0
RENTAL SECURITY DEPOSIT 0 14,750


TY 2023 OtherProfessionalFeesSchedule
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Category Amount Net Investment Income Adjusted Net Income Disbursements for Charitable Purposes
OUTSIDE SERVICES 4,880 0 0 0


TY 2023 TaxesSchedule
Name:
ADULT & PEDIATRIC SPINE RESEARCH
 
FOUNDATION
EIN:
20-0513178
Category Amount Net Investment Income Adjusted Net Income Disbursements for Charitable Purposes
INCOME TAX 12,885 12,885 0 0
PROPERTY TAXES 60,965 60,965   0
PROPERTY TAXES 67,678 67,678   0