Nonprofit · EIN 20-5904991
WHITTEMORE PETERSON INSTITUTE
Tax-exempt · RENO, NV 89557
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $377,169 | $263,786 | $113,383 | $1,236,596 | $31,259 | $1,205,337 |
| December 31, 2024 | 990 | $354,416 | $246,286 | $108,130 | $1,096,907 | $4,953 | $1,091,954 |
| December 31, 2023 | 990 (amended) | $326,611 | $276,093 | $50,518 | $989,548 | $5,724 | $983,824 |
| December 31, 2021 | 990 | $308,189 | $257,997 | $50,192 | $919,722 | $5,872 | $913,850 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $352,345
- of which government grants
- $224,400
- Program service revenue
- $0
- Investment income
- $24,824
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $25,000
- Compensation of officers, directors and key employees
- $82,912
- Other salaries and wages
- $59,325
- Salaries, compensation and benefits (total)
- $154,177
- Professional fundraising fees
- $0
- Legal fees
- $7,510
- Accounting fees
- $2,900
- Depreciation
- $13,274
- Program services (functional)
- $119,694
- Management and general (functional)
- $144,092
Balance sheet and other
- Total assets, start of year
- $1,096,906
- Total assets, end of year
- $1,236,596
- Total liabilities, end of year
- $31,259
- Net assets, end of year
- $1,205,337
- Land, buildings and equipment
- $316,324
- Gross receipts
- $377,169
- Employees
- 4
- Volunteers
- 5
- Year formed
- 2006
- State of legal domicile
- NV
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ANNETTE WHITTEMORE | PRESIDENT Trustee or director, Officer | 40 | $82,000 |
| NANCY MOSS GHUSN | SECRETARY Trustee or director, Officer | – | $0 |
| JOANN LIPPERT | DIRECTOR Trustee or director | – | $0 |
| SAM SHAD | DIRECTOR Trustee or director | – | $0 |
| PEGGY SULLIVAN | DIRECTOR Trustee or director | – | $0 |
990 for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Annette Whittemore | President Trustee or director, Officer | 40 | $82,000 |
| Nancy Moss Ghusn | Secretary Trustee or director | 0 | $0 |
| Joann Lippert | Director Trustee or director | 0 | $0 |
| Sam Shad | Director Trustee or director | 0 | $0 |
| Peggy Sullivan | Director Trustee or director | 0 | $0 |
990 for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Annette Whittemore | President Trustee or director, Officer | 40 | $82,000 |
| Nancy Moss Ghusn | Secretary Trustee or director | 0 | $0 |
| Joann Lippert | Director Trustee or director | 0 | $0 |
| Sam Shad | Director Trustee or director | 0 | $0 |
| Peggy Sullivan | Director Trustee or director | 0 | $0 |
990 for the year ended December 31, 2021: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Annette Whittemore | President Trustee or director, Officer | 40 | $82,000 |
| Nancy Moss Ghusn | Secretary Trustee or director | 1 | $0 |
| Joann Lippert | Director Trustee or director | 1 | $0 |
| Sam Shad | Director Trustee or director | 1 | $0 |
| Peggy Sullivan | Director Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 1664 N VIRGINIA ST, RENO, NV 89557-0001
- In care of
- % CARLI WEST
- Principal officer (990 for 2025)
- ANNETTE WHITTEMORE, 13398 CREST VALLEY DR, RENO, NV 89511
- Signed the 990
- ANNETTE WHITTEMORE, PRESIDENT
- Phone
- (775) 682-8250
- Website
- WWW.WPINSTITUTE.ORG
- Return prepared by
- ANDERSON BRADSHAW PLLC
Mission
TO BRING DISCOVERY, KNOWLEDGE, AND EFFECTIVE TREATMENTS TO PATIENTS WITH ILLNESSES THAT ARE CAUSED BY AQUIRED DYSREGULATION OF BOTH THE IMMUNE SYSTEM AND THE NERVOUS SYSTEM.
Program accomplishments
- THE PRIMARY PURPOSE OF THE INSTITUTE IS TO SUPPORT MEDICAL CARE AND CLINICAL RESEARCH, DEVELOPE EDUCATIONAL MATERIALS, AND PROVIDE CRITICAL SERVICES TO THOSE WHO ARE IMPACTED BY POST INFECTIOUS DISEASES.
- THE PRIMARY PURPOSE OF THE INSTITUTE IS TO SUPPORT MEDICAL CARE AND CLINICAL RESEARCH, DEVELOPE EDUCATIONAL MATERIALS, AND PROVIDE CRITICAL SERVICES TO THOSE WHO ARE IMPACTED BY POST INFECTIOUS DISEASES.Expenses $119,694 · grants $25,000
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 20-5904991
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2007
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Voluntary health associations and medical disciplines (G05)
- Assets (IRS master file)
- $1,236,596
- Income (IRS master file)
- $377,169
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $377,169 | $263,786 | $1,236,596 | XML |
| 990 | December 2024 | $354,416 | $246,286 | $1,096,907 | IRS |
| 990 | December 2023 | $326,611 | $276,093 | $989,548 | IRS |
| 990 | December 2022 | $290,630 | $271,174 | $937,641 | IRS |
| 990 | December 2021 | $308,189 | $257,997 | $919,722 | XML |
| 990 | December 2020 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 20-5904991).
Questions about WHITTEMORE PETERSON INSTITUTE
- What is the EIN of WHITTEMORE PETERSON INSTITUTE?
- The employer identification number (EIN) of WHITTEMORE PETERSON INSTITUTE is 20-5904991.
- Is WHITTEMORE PETERSON INSTITUTE tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2007.
- Are donations to WHITTEMORE PETERSON INSTITUTE tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does WHITTEMORE PETERSON INSTITUTE file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of WHITTEMORE PETERSON INSTITUTE due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did WHITTEMORE PETERSON INSTITUTE last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of WHITTEMORE PETERSON INSTITUTE?
- The 990 for the year ended December 31, 2025 names ANNETTE WHITTEMORE.
- Who are the officers and directors of WHITTEMORE PETERSON INSTITUTE?
- The 990 for the year ended December 31, 2025 lists 5 people; 1 received compensation from the organization, the highest $82,000 (ANNETTE WHITTEMORE, PRESIDENT).
- How much revenue does WHITTEMORE PETERSON INSTITUTE have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $377,169, expenses of $263,786 and total assets of $1,236,596 at year end.
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All nonprofits in RENO · Nevada · Voluntary health associations and medical disciplines