Nonprofit · EIN 46-5749468
PARKINSON STUDY GROUP INC
Also known as PSG
Tax-exempt (reinstated) · EAST BOSTON, MA 02128
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| September 30, 2025 | 990 | $1,837,674 | $1,646,901 | $190,773 | $1,411,276 | $121,612 | $1,289,664 |
| September 30, 2024 | 990 | $966,157 | $998,585 | -$32,428 | $1,166,834 | $67,943 | $1,098,891 |
| September 30, 2023 | 990 | $721,063 | $675,644 | $45,419 | $1,227,230 | $95,911 | $1,131,319 |
Financial details: 990 for the year ended September 30, 2025
Revenue
- Contributions, gifts and grants
- $969,841
- of which government grants
- $344,141
- Program service revenue
- $867,833
- Investment income
- $0
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $82,703
- Other salaries and wages
- $129,185
- Salaries, compensation and benefits (total)
- $281,632
- Professional fundraising fees
- $0
- Legal fees
- $8,350
- Accounting fees
- $59,200
- Occupancy
- $2,004
- Program services (functional)
- $1,184,652
- Management and general (functional)
- $462,249
Balance sheet and other
- Total assets, start of year
- $1,166,834
- Total assets, end of year
- $1,411,276
- Total liabilities, end of year
- $121,612
- Net assets, end of year
- $1,289,664
- Net assets without donor restrictions
- $1,289,664
- Gross receipts
- $1,837,674
- Employees
- 1
- Year formed
- 1986
- State of legal domicile
- MA
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 September 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Cindy Casaceli | Board Member Trustee or director | 6 | $0 |
| Eric MacKlin | Board Member Trustee or director | 6 | $0 |
| Joohi Jimenez-Shahed | Co-Chair Trustee or director | 6 | $0 |
| Andrew Siderowf | Chair Trustee or director | 6 | $0 |
| Amy Chesire | Board Member Trustee or director | 6 | $0 |
| Vanessa Hinson | Board Member Trustee or director | 0 | $0 |
| Irene Malaty | Board Member Trustee or director | 0 | $0 |
| Donna Moszkowicz | Ex-officio Trustee or director | 40 | $0 |
| Ruth Schneider | Board Member Trustee or director | 0 | $0 |
| Mary Maral Mouradian | Board Member Trustee or director | 0 | $0 |
| Aleksandar Videnovic | Board Member Trustee or director | 0 | $0 |
| Sarah Sperling | Executive Director Trustee or director | 40 | $0 |
990 for the year ended September 30, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Joohi Jimenez-Shahed | Co-Chair Trustee or director | 6 | $0 |
| Andrew Siderowf | Chair Trustee or director | 6 | $0 |
| Cindy Casaceli | Board Member Trustee or director | 6 | $0 |
| Eric MacKlin | Board Member Trustee or director | 6 | $0 |
| Sarah Sperling | Executive Director Highest-paid employee | 40 | $0 |
990 for the year ended September 30, 2023: 11 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| Sarah Sperling | Executive Director Highest-paid employee | 40 | $89,317 | $7,766 |
| Hubert Fernandez | Co-Chair Trustee or director, Officer | 6 | $27,370 | $0 |
| Michael Schwarzchild | Chair Trustee or director, Officer | 6 | $21,059 | $0 |
| Andrew Siderowf | Board Member Trustee or director | 6 | $18,520 | $0 |
| Tanya Simuni | Board Member Trustee or director | 6 | $7,000 | $0 |
| Grace Bwala | Board Member Trustee or director | 6 | $5,750 | $0 |
| Eric MacKlin | Board Member Trustee or director | 6 | $0 | $0 |
| Cindy Casaceli | Board Member Trustee or director | 6 | $0 | $0 |
| Allison Willis | Board Member Trustee or director | 6 | $0 | $0 |
| Joel Perlmutter | Board Member Trustee or director | 6 | $0 | $0 |
| Joohi Jimenez-Shahed | Board Member Trustee or director | 6 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 2 NEPTUNE RD PMB 420, EAST BOSTON, MA 02128-1457
- In care of
- % SARAH SPERLING
- Mailing address (990-N for 2017)
- 114 16th st room 3002, boston MA 02129
- Principal officer (990-N for 2017)
- micheal schwazschild, 114 16th st rm 302, boston MA 02129
- Signed the 990
- SARAH SPERLING, Executive Director
- Return prepared by
- WASILIDAS & KULIK CPA PC
Mission
See Schedule O
Program accomplishments
- The Entity facilitated the expansion and diversification of Parkinsons Disease (PD) trials and targeted indications, including trials for non-motor symptomatic indications, industry-sponsored trials, and investigator-initiated programs. It has developed collaborations with groups such as the Parkinsons Foundation, Pair Program, National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS), and The World Parkinson Congress. It has also provided a mentored clinical research award to support new investigators in a one-year project in patient-oriented research in Parkinsons Disease and Parkinsonian Disorders.Expenses $1,184,652 · revenue $1,837,675
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 September, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | September 30, 2026 | February 16, 2027 | Not due yet |
| 2024 | September 30, 2025 | February 17, 2026 | 990 on file |
| 2023 | September 30, 2024 | February 18, 2025 | 990 on file |
IRS record
- EIN
- 46-5749468
- 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
- 2018
- Accounting year ends
- September
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Voluntary health associations and medical disciplines (G50)
- Assets (IRS master file)
- $1,411,276
- Income (IRS master file)
- $1,837,674
Revocation and reinstatement
- Exemption revoked
- February 15, 2017
- Posted by the IRS
- October 11, 2017
- Reinstated
- Effective February 15, 2017
From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | September 2025 | $1,837,674 | $1,646,901 | $1,411,276 | XML |
| 990 | September 2024 | $966,157 | $998,585 | $1,166,834 | XML |
| 990 | September 2023 | $721,063 | $675,644 | $1,227,230 | XML |
| 990 | September 2022 | $898,835 | $480,686 | $1,102,918 | IRS |
| 990 | September 2021 | – | – | – | IRS |
| 990 | September 2020 | – | – | – | IRS |
| 990 | September 2019 | – | – | – | IRS |
| 990-N for 2017 Officer: micheal schwazschild | September 30, 2018 | ≤ $50,000 receipts | – | – | e-Postcard |
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 46-5749468).
Questions about PARKINSON STUDY GROUP INC
- What is the EIN of PARKINSON STUDY GROUP INC?
- The employer identification number (EIN) of PARKINSON STUDY GROUP INC is 46-5749468.
- Is PARKINSON STUDY GROUP INC tax-exempt?
- Yes. The IRS revoked its exemption on February 15, 2017 and reinstated it effective February 15, 2017.
- Are donations to PARKINSON STUDY GROUP INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does PARKINSON STUDY GROUP INC 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 PARKINSON STUDY GROUP INC due?
- The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did PARKINSON STUDY GROUP INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended September 2025.
- Who is the principal officer of PARKINSON STUDY GROUP INC?
- The 990-N for 2017 names micheal schwazschild.
- Who are the officers and directors of PARKINSON STUDY GROUP INC?
- The 990 for the year ended September 30, 2025 lists 12 people; 0 received compensation from the organization.
- How much revenue does PARKINSON STUDY GROUP INC have?
- On its 990 for the year ended September 30, 2025 it reported revenue of $1,837,674, expenses of $1,646,901 and total assets of $1,411,276 at year end.
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