Nonprofit · EIN 23-6289052
CHESTER COUNTY MEDICAL SOCIETY
Tax-exempt · WEST CHESTER, PA 19380
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| September 30, 2025 | 990 | $103,506 | $106,538 | -$3,032 | $320,667 | $37,240 | $283,427 |
| September 30, 2024 | 990 | $78,774 | $93,810 | -$15,036 | $317,251 | $35,692 | $281,559 |
| September 30, 2023 | 990 | $93,940 | $97,038 | -$3,098 | $282,443 | $34,279 | $248,164 |
Financial details: 990 for the year ended September 30, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $61,577
- Investment income
- $25,243
- Net gain from sales of assets
- $16,525
- Net income from fundraising events
- $16,686
- Other revenue
- $16,686
Expenses
- Grants and similar amounts paid
- $0
- Other salaries and wages
- $54,677
- Salaries, compensation and benefits (total)
- $59,055
- Professional fundraising fees
- $0
- Legal fees
- $6,146
- Occupancy
- $14,747
- Program services (functional)
- $106,538
Balance sheet and other
- Total assets, start of year
- $317,251
- Total assets, end of year
- $320,667
- Total liabilities, end of year
- $37,240
- Net assets, end of year
- $283,427
- Publicly traded securities
- $274,846
- Net assets without donor restrictions
- $283,427
- Gross receipts
- $271,708
- Employees
- 2
- Volunteers
- 20
- State of legal domicile
- PA
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 |
|---|---|---|---|
| Heidar Jahromi MD | Board Member Officer | 0.25 | $0 |
| Norman Callahan III DO | Board Member Officer | 0.25 | $0 |
| Mian Jan MD | Board Member Officer | 0.25 | $0 |
| Bruce Colley DO | Past President Officer | 0.25 | $0 |
| David Bobman MD | President Officer | 0.25 | $0 |
| Winslow Murdoch MD | Treasurer Officer | 0.25 | $0 |
| Manjula Naik MD | Board Member Officer | 0.25 | $0 |
| Richard Oyelewu MD | Vice President Officer | 0.25 | $0 |
| Christina Vandepol MD | Secretary Officer | 0.25 | $0 |
| Michael Dellavecchia MD | Board Member Officer | 0.25 | $0 |
| William Kramer DO | Board Member Officer | 0.25 | $0 |
990 for the year ended September 30, 2024: 11 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| HEIDAR JAHROMI MD | BOARD MEMBER Officer | 0.25 | $0 |
| NORMAN CALLAHAN III DO | BOARD MEMBER Officer | 0.25 | $0 |
| MIAN JAN MD | BOARD MEMBER Officer | 0.25 | $0 |
| BRUCE COLLEY DO | PAST PRESIDE Officer | 0.25 | $0 |
| DAVID BOBMAN MD | PRESIDENT Officer | 0.25 | $0 |
| WINSLOW MURDOCH MD | TREASURER Officer | 0.25 | $0 |
| MANJULA NAIK MD | BOARD MEMBER Officer | 0.25 | $0 |
| RICHARD OYELEWU MD | VICE PRESIDE Officer | 0.25 | $0 |
| CHRISTINA VANDEPOL MD | SECRETARY Officer | 0.25 | $0 |
| MICHAEL DELLAVECCHIA MD | BOARD MEMBER Officer | 0.25 | $0 |
| WILLIAM KRAMER DO | BOARD MEMBER Officer | 0.25 | $0 |
990 for the year ended September 30, 2023: 13 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| HEIDAR JAHROMI MD | BOARD MEMBER Officer | 0.25 | $0 |
| JOHN MAHER MD | BOARD MEMBER Officer | 0.25 | $0 |
| NORMAN CALLAHAN III DO | BOARD MEMBER Officer | 0.25 | $0 |
| MIAN JAN MD | BOARD MEMBER Officer | 0.25 | $0 |
| BRUCE COLLEY DO | PAST PRESIDE Officer | 0.25 | $0 |
| DAVID BOBMAN MD | PRESIDENT Officer | 0.25 | $0 |
| WINSLOW MURDOCH MD | TREASURER Officer | 0.25 | $0 |
| MAHMOUD EFFAT MD | BOARD MEMBER Officer | 0.25 | $0 |
| MANJULA NAIK MD | BOARD MEMBER Officer | 0.25 | $0 |
| RICHARD OYELEWU MD | VICE PRESIDE Officer | 0.25 | $0 |
| SEAN RYAN MD | BOARD MEMBER Officer | 0.25 | $0 |
| CHRISTINA VANDEPOL MD | SECRETARY Officer | 0.25 | $0 |
| FRANCIS SPEIDEL MD | BOARD MEMBER Officer | 0.25 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 5344, WEST CHESTER, PA 19380-0408
- Principal officer (990 for 2024)
- Lynne Stilley, 1050 Airport Rd PO Box 5344, West Chester, PA 193805344
- Signed the 990
- Lynne Stilley, Executive Director
- Phone
- (610) 357-8531
- Website
- CCMS.ORG
- Return prepared by
- Joseph P Melvin Company LLC
Mission
TO FEDERATE THE MEDICAL PROFESSION, UNITING WITH OTHER SIMILARSOCIETIES TO EXTEND MEDICAL KNOWLEDGE, ADVANCE MEDICAL SCIENCEAND TO ELEVATE THE STANDARD OF MEDICAL EDUCATION
Program accomplishments
- HOSTED SEVERAL EVENTS TO KEEP PHYSICIANS AND OTHER MEDICAL PROFESSIONALS UP TO DATE ON RELEVANT MEDICAL ISSUES. THE SOCIETY ALSO PUBLISHED ITS QUARTERLY JOURNAL, CHESTER COUNTY MEDICINE.
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
- 23-6289052
- Tax-exempt status
- 501(c)(6): Business league or chamber of commerce
- Donations deductible
- No
- Exempt since
- 1965
- Accounting year ends
- September
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $320,667
- Income (IRS master file)
- $271,708
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | September 2025 | $103,506 | $106,538 | $320,667 | XML |
| 990 | September 2024 | $78,774 | $93,810 | $317,251 | XML |
| 990 | September 2023 | $93,940 | $97,038 | $282,443 | XML |
| 990 | September 2022 | $63,239 | $92,583 | $253,460 | IRS |
| 990-EZ | September 2021 | – | – | – | IRS |
| 990-EZ | December 2018 | – | – | – | 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 23-6289052).
Questions about CHESTER COUNTY MEDICAL SOCIETY
- What is the EIN of CHESTER COUNTY MEDICAL SOCIETY?
- The employer identification number (EIN) of CHESTER COUNTY MEDICAL SOCIETY is 23-6289052.
- Is CHESTER COUNTY MEDICAL SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 1965.
- Are donations to CHESTER COUNTY MEDICAL SOCIETY tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does CHESTER COUNTY MEDICAL SOCIETY 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 CHESTER COUNTY MEDICAL SOCIETY 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 CHESTER COUNTY MEDICAL SOCIETY 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 CHESTER COUNTY MEDICAL SOCIETY?
- The 990 for the year ended September 30, 2025 names Lynne Stilley.
- Who are the officers and directors of CHESTER COUNTY MEDICAL SOCIETY?
- The 990 for the year ended September 30, 2025 lists 11 people; 0 received compensation from the organization.
- How much revenue does CHESTER COUNTY MEDICAL SOCIETY have?
- On its 990 for the year ended September 30, 2025 it reported revenue of $103,506, expenses of $106,538 and total assets of $320,667 at year end.
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