Mani Mahdavian, MD
NPI 1992873624ActiveIndividual· Internal Medicine, Gastroenterology· Des Plaines, IL
Internal Medicine, Gastroenterology (MD) with Prime Healthcare Illinois Medical Group LLC and 2 other groups, practicing in Des Plaines, Illinois. Their prescriptions cost Medicare Part D more than their services did: $578,103 for 1,479 claims, against $209,495 paid for services in 2024. Janssen Biotech, Inc. was the largest of 21 companies reporting payments in 2025, $2,213 in all, mostly food and beverage. Lists Advocate Lutheran General Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1992873624 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 1, 2006 |
| Last updated in NPPES | Aug 22, 2024 |
| Certified by provider | Aug 22, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036095201 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 974 |
|---|---|
| Services billed | 2,000 across 62 procedure codes |
| Paid by Medicare | $209,495 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,479 · 2,542 30-day fills |
|---|---|
| Patients | 765 |
| Total drug cost | $578,103 |
| Generic share | 70% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- Prime Healthcare Illinois Medical Group LLCChicago, IL · 322 clinicians
- City of Hope Medical Group of Illinois PLLCZion, IL · 129 clinicians
- Midtown Gastroenterology and Liver Disease LLCDes Plaines, IL · 4 clinicians
Hospital affiliations
- Advocate Lutheran General HospitalPark Ridge, IL
- Amita Health Resurrection Medical CenterChicago, IL
- Midwestern Region Med Center, IncZion, IL
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Northwest Community Hospital 1Arlington Heights, IL
Other facilities
- Holy Family Medical CenterLong-term care hospital · Des Plaines, IL
Industry payments (Open Payments)
- 2025$2,213 · 92 payments from 21 companies
- 2024$664.77 · 25 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $361.73 | 11 |
| Abbvie Inc. | $332.37 | 19 |
| Takeda Pharmaceuticals U.S.A., Inc. | $298.12 | 13 |
| Madrigal Pharmaceuticals | $166.59 | 7 |
| Gilead Sciences, Inc. | $159.72 | 7 |
What the 2025 payments were for
- Food and Beverage$2,213 · 92 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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