Nnenna Chinyere Okpara, M.D.
NPI 1093813313ActiveIndividual· Internal Medicine, Gastroenterology· Providence, RI
Internal Medicine, Gastroenterology (M.D.) in Providence, Rhode Island, trained at Columbia University College of Physicians and Surgeons (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $402,944 for 248 claims, against $13,237 paid for services in 2024. Janssen Biotech, Inc. was the largest of 2 companies reporting payments in 2025, $220.92 in all, mostly food and beverage.
Overview
| NPI | 1093813313 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 20, 2006 |
| Last updated in NPPES | Apr 1, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 12271 | RI |
| Internal Medicine | 207R00000X | 230338 | NY |
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 - Internal Medicine (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 76 |
|---|---|
| Services billed | 138 across 19 procedure codes |
| Paid by Medicare | $13,237 |
Part D prescriptions in 2024
| Prescriptions (claims) | 248 · 424 30-day fills |
|---|---|
| Patients | 78 |
| Total drug cost | $402,944 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Internal Medicine |
Medical group
- Affinity Physicians LLC.Warwick, RI · 730 clinicians
Hospital affiliation
- Women & Infants Hospital of Rhode IslandProvidence, RI
Industry payments (Open Payments)
- 2025$220.92 · 2 payments from 2 companies
- 2024$279.60 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $141.49 | 1 |
| Pfizer Inc. | $79.43 | 1 |
What the 2025 payments were for
- Food and Beverage$220.92 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Providence
- 1023007556
- 1043209398
- 1063583383
- 1104346733
- 1124059696
- 1194952929
- 1225027766
- 1306073846
- 1316997588
- 1376614966
- 1447336904
- 1467546051
All 67 gastroenterologists in Providence · All gastroenterologists in Rhode Island