Onajefe S. Nelson-Twakor, MD
NPI 1922217926ActiveIndividual· Internal Medicine, Cardiovascular Disease· Macon, GA
Internal Medicine, Cardiovascular Disease (MD) with Health Services of Central Georgia, practicing in Macon, Georgia. Their prescriptions cost Medicare Part D more than their services did: $205,482 for 952 claims, against $69,245 paid for services in 2024. Abbott Laboratories was the largest of 4 companies reporting payments in 2025, $3,169 in all, mostly travel and lodging. Lists Atrium Health Navicent Peach and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1922217926 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 22, 2007 |
| Last updated in NPPES | Apr 6, 2020 |
| Certified by provider | Apr 6, 2020 |
Specialties and licenses
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 - Cardiac Electrophysiology (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,378 |
|---|---|
| Services billed | 2,361 across 54 procedure codes |
| Paid by Medicare | $69,245 |
Part D prescriptions in 2024
| Prescriptions (claims) | 952 · 2,035 30-day fills |
|---|---|
| Patients | 130 |
| Total drug cost | $205,482 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Cardiac Electrophysiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical group
- Health Services of Central GeorgiaMacon, GA · 300 clinicians
Hospital affiliations
- Atrium Health Navicent PeachByron, GA
- Atrium Health Navicent the Medical CenterMacon, GA
- Coliseum Medical Centers, LLC, DBAMacon, GA
- Emory Houston Hospital Warner RobinsWarner Robins, GA
- Piedmont Macon North HospitalMacon, GA
Industry payments (Open Payments)
- 2025$3,169 · 23 payments from 4 companies
- 2024$5,198 · 41 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $2,813 | 19 |
| Atricure, Inc. | $142.58 | 1 |
| Stryker Corporation | $124.88 | 1 |
| Boston Scientific Corporation | $88.47 | 2 |
What the 2025 payments were for
- Travel and Lodging$1,821 · 7 payments
- Food and Beverage$1,348 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 23 cardiologists in Macon · All cardiologists in Georgia