Nonprofit · EIN 20-1604714
MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY
Tax-exempt (reinstated) · SCHAUMBURG, IL 60173
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $128,700 | $109,516 | $19,184 | $256,474 | $64,384 | $192,090 |
| December 31, 2024 | 990-EZ | $105,275 | $93,412 | $11,863 | $240,281 | $67,375 | $172,906 |
| December 31, 2023 | 990-EZ | $126,125 | $100,577 | $25,548 | $238,092 | $77,049 | $161,043 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Program service revenue
- $128,700
Expenses
- Grants and similar amounts paid
- $2,000
- Compensation of officers, directors and key employees
- $0
- Professional fees and payments to contractors
- $50,004
- Printing, publications and postage
- $1,081
- Other expenses
- $56,431
- Program services (functional)
- $58,078
Balance sheet and other
- Total assets, start of year
- $240,281
- Total assets, end of year
- $256,474
- Total liabilities, end of year
- $64,384
- Net assets, end of year
- $192,090
- Cash, savings and investments
- $256,474
- Gross receipts
- $128,700
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-EZ for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Mary Beth E Lindsey DO | President | 1 | $0 |
| Day Lennep MD FACR FACP | Vice President | 1 | $0 |
| Lydia Walters MSN FNP-C | Secretary | 1 | $0 |
| TaTonja R Jones MSN | Treasurer | 1 | $0 |
| Dedri Ivory MD BS | Past President | 1 | $0 |
| Jason Taylor MD | Director | 1 | $0 |
| Seth Compton MD | Director | 0 | $0 |
| Marna Rundgren | ASSOCIATE DIR. | 1 | $0 |
990-EZ for the year ended December 31, 2024: 7 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Dedri Ivory MD BS | President | 1 | $0 |
| Day Lennep MD FACR FACP | Vice President | 1 | $0 |
| Mary E Lindsey DO | Secretary | 1 | $0 |
| Seth Compton MD | Treasurer | 1 | $0 |
| Jason Taylor MD | Past President | 1 | $0 |
| Vikas Majithia MBBSMD MPH | Director | 1 | $0 |
| Marna Rundgren | ASSOCIATE DIR. | 1 | $0 |
990-EZ for the year ended December 31, 2023: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Dedri Ivory MD BS | President | 1 | $0 |
| Day Lennep MD FACR FACP | Vice President | 1 | $0 |
| Mary E Lindsey DO | Secretary | 1 | $0 |
| Seth Compton MD | Treasurer | 1 | $0 |
| Jason Taylor MD | Past President | 1 | $0 |
| Vikas Majithia MBBSMD MPH | Director | 1 | $0 |
| Kerstin Gerhold | Director | 1 | $0 |
| Marna Rundgren | Executive Dir. | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 1933 N MEACHAM RD STE 450, SCHAUMBURG, IL 60173-4410
- In care of
- % REBECCA NIEMEYER
- Mailing address (990-N for 2016)
- 1100 E Woodfield Rd Ste350, Schaumburg IL 60173
- Principal officer (990-N for 2016)
- Jason Taylor MD, 106 Highland Way Ste 200, Madison MS 39110
- Signed the 990-EZ
- TaTonja R Jones MSN, Treasurer
- Phone
- (847) 517-7225
- Return prepared by
- IL NFP AUDIT AND TAX LLP
Mission
TO STIMULATE INTEREST IN AND INCREASE THE KNOWLEDGE OF RHEUMATIC DISEASES AMONG PHYSICIANS AND LAYMEN.
Program accomplishments
- MEETINGS HELD TO STIMULATE INTEREST IN AND INCREASE THE KNOWLEDGE OF RHEUMATIC DISEASES AMONG PHYSICIANS AND LAYMEN.Expenses $58,078 · grants $2,000
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-EZ on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-EZ on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-EZ on file |
IRS record
- EIN
- 20-1604714
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2014
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Voluntary health associations and medical disciplines (G03)
- Assets (IRS master file)
- $256,474
- Income (IRS master file)
- $128,700
Revocation and reinstatement
- Exemption revoked
- May 15, 2011
- Posted by the IRS
- February 22, 2012
- Reinstated
- Effective May 15, 2011
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-EZ | December 2025 | $128,700 | $109,516 | $256,474 | XML |
| 990-EZ | December 2024 | $105,275 | $93,412 | $240,281 | XML |
| 990-EZ | December 2023 | $126,125 | $100,577 | $238,092 | XML |
| 990-EZ | December 2022 | – | – | – | IRS |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-EZ | December 2020 | – | – | – | IRS |
| 990-EZ | December 2019 | – | – | – | IRS |
| 990-EZ | December 2018 | – | – | – | IRS |
| 990-N for 2016 Officer: Jason Taylor MD | December 31, 2016 | ≤ $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 20-1604714).
Questions about MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY
- What is the EIN of MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY?
- The employer identification number (EIN) of MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY is 20-1604714.
- Is MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY tax-exempt?
- Yes. The IRS revoked its exemption on May 15, 2011 and reinstated it effective May 15, 2011.
- Are donations to MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MISSISSIPPI ARTHRITIS AND RHEUMATISM 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 MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY 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 MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
- Who is the principal officer of MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY?
- The 990-N for 2016 names Jason Taylor MD.
- Who are the officers and directors of MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY?
- The 990-EZ for the year ended December 31, 2025 lists 8 people; 0 received compensation from the organization.
- How much revenue does MISSISSIPPI ARTHRITIS AND RHEUMATISM SOCIETY have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $128,700, expenses of $109,516 and total assets of $256,474 at year end.
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All nonprofits in SCHAUMBURG · Illinois · Voluntary health associations and medical disciplines