Chike Gregory Onwuka, M.D.
NPI 1013065267ActiveIndividual· Internal Medicine· Clinton, MD
Internal Medicine (M.D.) with Suburban/Nrh Medical Rehabilitation Inc and 1 other group, practicing in Clinton, Maryland. Their prescriptions cost Medicare Part D more than their services did: $2,504,504 for 14,388 claims, against $349,876 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 19 companies reporting payments in 2025, $1,602 in all, mostly food and beverage. Lists Medstar Georgetown University Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1013065267 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jan 6, 2007 |
| Last updated in NPPES | Oct 4, 2021 |
| Certified by provider | Oct 4, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D0064986 | MD |
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 - Internal Medicine (DC); Practitioner - Internal Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,073 |
|---|---|
| Services billed | 5,006 across 44 procedure codes |
| Paid by Medicare | $349,876 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14,388 · 34,933 30-day fills |
|---|---|
| Patients | 1,020 |
| Total drug cost | $2,504,504 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Suburban/Nrh Medical Rehabilitation IncBethesda, MD · 941 clinicians
- G Medicine LLCClinton, MD · 3 clinicians
Hospital affiliations
- Medstar Georgetown University HospitalWashington, DC
- Medstar Southern Maryland Hospital CenterClinton, MD
Other facilities
- Adventist Home Health Services, Inc.Home health agency · Silver Spring, MD
- Amedisys Home Health CareHome health agency · Largo, MD
- HomecallHome health agency · Easton, MD
- Medstar Health Home CareHome health agency · Hyattsville, MD
- Vna of MarylandHome health agency · Owings Mills, MD
- Hospice of the Chesapeake, Inc.Hospice · Waldorf, MD
Industry payments (Open Payments)
- 2025$1,602 · 82 payments from 19 companies
- 2024$265.63 · 14 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $190.21 | 15 |
| Amgen Inc. | $153.95 | 7 |
| Abbott Laboratories | $153.69 | 7 |
| Pfizer Inc. | $150.77 | 9 |
| Sumitomo Pharma America, Inc. | $148.13 | 13 |
What the 2025 payments were for
- Food and Beverage$1,602 · 82 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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