Winifred Oniah, M.D.
NPI 1831183185ActiveIndividual· Family Medicine· Gary, IN
Family Medicine (M.D.) in Gary, Indiana, licensed in IN, with an NPI issued in September 2005. Their prescriptions cost Medicare Part D more than their services did: $591,943 for 5,783 claims, against $29,320 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 11 companies reporting payments in 2025, $467.85 in all, mostly food and beverage. Lists Methodist Hospitals Inc as a hospital affiliation.
Overview
| NPI | 1831183185 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 1, 2005 |
| Last updated in NPPES | Jan 26, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 01057396 | IN |
| Specialist | 174400000X | 01057396A | IN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 131 |
|---|---|
| Services billed | 590 across 32 procedure codes |
| Paid by Medicare | $29,320 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,783 · 13,257 30-day fills |
|---|---|
| Patients | 431 |
| Total drug cost | $591,943 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Family Practice |
Hospital affiliation
- Methodist Hospitals IncGary, IN
Other facilities
- Methodist Home Care ServicesHome health agency · Merrillville, IN
Industry payments (Open Payments)
- 2025$467.85 · 19 payments from 11 companies
- 2024$656.97 · 23 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $173.80 | 5 |
| Exact Sciences Corporation | $103.24 | 4 |
| Glaxosmithkline, LLC. | $42.29 | 2 |
| Eisai Inc. | $25.19 | 1 |
| Xeris Pharmaceuticals, Inc. | $23.75 | 1 |
What the 2025 payments were for
- Food and Beverage$467.85 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 family medicine physicians in Gary · All family medicine physicians in Indiana