Casimir Chukwuemeka Okoro, M.D
NPI 1508948563ActiveIndividual· Internal Medicine· Riverdale, GA
Internal Medicine (M.D) with Southside Internal Medicine PC, practicing in Riverdale, Georgia. Their prescriptions cost Medicare Part D more than their services did: $904,405 for 7,484 claims, against $21,168 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 9 companies reporting payments in 2025, $270.63 in all, mostly food and beverage.
Overview
| NPI | 1508948563 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | Yes |
| NPI issued | Oct 19, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 037037 | GA |
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 (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 99 |
|---|---|
| Services billed | 465 across 29 procedure codes |
| Paid by Medicare | $21,168 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,484 · 15,168 30-day fills |
|---|---|
| Patients | 421 |
| Total drug cost | $904,405 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Southside Internal Medicine PCRiverdale, GA · 2 clinicians
Industry payments (Open Payments)
- 2025$270.63 · 13 payments from 9 companies
- 2024$479.26 · 23 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $62.99 | 3 |
| Lilly USA, LLC | $47.65 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $45.05 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $25.60 | 1 |
| Pfizer Inc. | $25.34 | 1 |
What the 2025 payments were for
- Food and Beverage$270.63 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 30 internal medicine physicians in Riverdale · All internal medicine physicians in Georgia