John H. Durham, MD
NPI 1558396309ActiveIndividual· Internal Medicine, Nephrology· Orangeburg, SC
Internal Medicine, Nephrology (MD) with Palmetto Nephrology PA, practicing in Orangeburg, South Carolina. In 2024 Medicare paid $129,294 for 445 patients, and Part D covered 887 of their prescriptions, 89% of them generic. Calliditas Therapeutics US Inc. was the largest of 5 companies reporting payments in 2025, $211.57 in all, mostly food and beverage. Lists Musc Medical Center as a hospital affiliation.
Overview
| NPI | 1558396309 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 11, 2006 |
| Last updated in NPPES | Jan 5, 2024 |
| Certified by provider | Jan 5, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 24026 | SC |
| Specialist | 174400000X | 24026 | SC |
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 - Nephrology (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 445 |
|---|---|
| Services billed | 1,422 across 32 procedure codes |
| Paid by Medicare | $129,294 |
Part D prescriptions in 2024
| Prescriptions (claims) | 887 · 1,422 30-day fills |
|---|---|
| Patients | 188 |
| Total drug cost | $146,071 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Palmetto Nephrology PAOrangeburg, SC · 6 clinicians
Hospital affiliation
- Musc Medical CenterCharleston, SC
Other facilities
- Davita North Orangeburg DialysisDialysis facility · Orangeburg, SC
- Davita Santee DialysisDialysis facility · Santee, SC
Industry payments (Open Payments)
- 2025$211.57 · 5 payments from 5 companies
- 2024$286.18 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $122.56 | 1 |
| Travere Therapeutics, Inc. | $27.40 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $21.50 | 1 |
| Astrazeneca Pharmaceuticals LP | $20.22 | 1 |
| Scpharmaceuticals Inc. | $19.89 | 1 |
What the 2025 payments were for
- Food and Beverage$211.57 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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