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Parkinson Study Group Inc

EIN 46-5749468 · East Boston, MA

Public records show a registered, tax-exempt organization in good standing.

LegitimacyPassesRegistration and standingFinancial healthStrong93 out of 100GovernanceStrong93 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

See Schedule O

Income
$1.8 million
Spending
$1.6 million
Spent on programs
72%
Reserves
9.4 months of spending
Largest source of income
fees for its services, 47%
Employees
1

Source: Form 990 for the year ending September 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Strong: 93 out of 100. Higher than 72% of charities in its peer group (diseases, $1m to $10m).

  • Reserves

    28 of 35

    Spendable reserves would cover 9.4 months of spending.

  • Debt

    20 of 20

    It owes 9% of what it owns.

  • Living within its means

    15 of 15

    Income exceeded spending by 10% of income.

  • Income trend

    15 of 15

    Income rose 90% on the year before.

  • Spending floor

    15 of 15

    72% of spending went to programs and raising each dollar of donations cost 0 cents.

Source: Form 990 for the year ending September 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

Strong: 93 out of 100. Higher than 50% of charities in its peer group (diseases, $1m to $10m).

  • Independent board

    25 of 25

    10 of 12 voting board members are independent.

  • Conflict of interest policy

    15 of 15

    Has a written conflict of interest policy.

  • Whistleblower policy

    8 of 8

    Has a written whistleblower policy.

  • Record keeping policy

    0 of 7

    Reports no written policy on keeping and destroying records.

  • Board minutes

    5 of 5

    Keeps minutes of board meetings.

  • Board sees the tax return

    10 of 10

    Gave the board a copy of this return before filing it.

  • Independent check of accounts

    15 of 15

    Its accounts were audited by an independent accountant.

  • No reported misuse

    10 of 10

    Reports no diversion of assets, excess benefits or loans to insiders.

Source: Form 990 for the year ending September 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Impact evidence

Describes programs. Its tax return describes what it does but we have found no measurable results in it.

Programs described in its return (2)
  1. $1.2 million spent. 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.
  2. FORM 990, PART III, LINE 1: TO MAKE SUBSTANTIAL ADVANCES IN OUR UNDERSTANDING AND TREATMENT OF PARKINSONS DISEASE AND OTHER PARKINSONIAN DISORDERS; WORKING AS AN EFFICIENT, COLLABORATIVE NETWORK OF TALENTED CLINICIANS AND SCIENTISTS AND OPERATING UNDER A SUPPORTIVE AND PROACTIVE LEADERSHIP WITH BROAD BACKING FROM GOVERNMENT, INDUSTRY, FOUNDATION, AND PATIENT STAKE-HOLDERS IN THE PARKINSON COMMUNITY.

Source: Form 990 for the year ending September 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Legitimacy checks

  1. Is it registered with the IRS? Passed.

    Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  2. Has the IRS revoked its tax-exempt status? Worth knowing.

    Status was revoked on February 15, 2017 for not filing returns for three years, and reinstated on February 15, 2017.

    Source: Automatic revocation of exemption list, Internal Revenue Service, file dated September 30, 2026.

  3. Are donations tax-deductible? Passed.

    On the IRS list of organizations eligible to receive tax-deductible contributions.

    Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated September 10, 2026.

  4. Is it keeping up with its IRS filings? Passed.

    Most recent return on file covers the year ending September 2025.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  5. How long has it been tax-exempt? Passed.

    Recognized by the IRS since December 2018.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  6. Is it in good standing with state regulators? Passed.

    Not on California's list of charities barred from soliciting. Other states are not yet checked.

    Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 7, 2026.

Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.