Amarnath A. Kathresal, M.D.
NPI 1033194402ActiveIndividual· Internal Medicine, Nephrology· Durham, NC
Internal Medicine, Nephrology (M.D.) with Durham Nephrology Associates PA, practicing in Durham, North Carolina. Their prescriptions cost Medicare Part D more than their services did: $296,338 for 1,528 claims, against $148,593 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 14 companies reporting payments in 2025, $778.81 in all, mostly food and beverage. Lists Duke Regional Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1033194402 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 8, 2005 |
| Last updated in NPPES | Jul 3, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 2006-00720 | NC |
| Student in an Organized Health Care Education/Training Program | 390200000X | MD.201123 | LA |
| Internal Medicine, Nephrology | 207RN0300X | MD.201123 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 375 |
|---|---|
| Services billed | 4,149 across 37 procedure codes |
| Paid by Medicare | $148,593 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,528 · 2,899 30-day fills |
|---|---|
| Patients | 263 |
| Total drug cost | $296,338 |
| Generic share | 77% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Durham Nephrology Associates PAOxford, NC · 10 clinicians
Hospital affiliations
- Duke Regional HospitalDurham, NC
- Duke University HospitalDurham, NC
- Granville Health SystemsOxford, NC
- Person Memorial HospitalRoxboro, NC
Other facilities
- Fmc - Freedom Lake Dialysis UnitDialysis facility · Durham, NC
- Fmc West Pettigrew Dialysis CenterDialysis facility · Durham, NC
Industry payments (Open Payments)
- 2025$778.81 · 36 payments from 14 companies
- 2024$988.71 · 52 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $179.93 | 9 |
| Travere Therapeutics, Inc. | $104.32 | 6 |
| Calliditas Therapeutics US Inc. | $90.94 | 3 |
| Glaxosmithkline, LLC. | $72.85 | 3 |
| Fresenius USA Marketing, Inc. | $64.07 | 3 |
What the 2025 payments were for
- Food and Beverage$778.81 · 36 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Nephrology providers in Durham
- 1962583203
- 1396321782
- 1821171067
- 1003236787
- 1518011832
- 1609337690
- 1982279550
- 1912094756
- 1073530655
- 1639261472
- 1063779759
- 1316048424
All Internal Medicine, Nephrology providers in North Carolina →