Ashutosh Singh, M.D.
NPI 1538166376ActiveIndividual· Internal Medicine, Nephrology· Oak Ridge, TN
Internal Medicine, Nephrology (M.D.) with Nephrocare Tennessee PLLC, practicing in Oak Ridge, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $765,440 for 1,742 claims, against $202,539 paid for services in 2024. Travere Therapeutics, Inc. was the largest of 8 companies reporting payments in 2025, $428.97 in all, mostly food and beverage. Lists Fort Sanders Regional Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1538166376 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 7, 2005 |
| Last updated in NPPES | Jan 4, 2021 |
| Certified by provider | Jan 4, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD39067 | TN |
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 (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 440 |
|---|---|
| Services billed | 1,806 across 23 procedure codes |
| Paid by Medicare | $202,539 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,742 · 3,577 30-day fills |
|---|---|
| Patients | 356 |
| Total drug cost | $765,440 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Nephrocare Tennessee PLLCOak Ridge, TN · 2 clinicians
Hospital affiliations
- Fort Sanders Regional Medical CenterKnoxville, TN
- Methodist Medical Center of Oak RidgeOak Ridge, TN
- Parkwest Medical CenterKnoxville, TN
- Roane Medical CenterHarriman, TN
- University Health System, IncKnoxville, TN
Other facilities
- Davita Campbell Station DialysisDialysis facility · Farragut, TN
- Davita Clinch River DialysisDialysis facility · Clinton, TN
- Davita Knoxville DialysisDialysis facility · Knoxville, TN
- Fmc Oak RidgeDialysis facility · Oak Ridge, TN
- Fmc Roane CountyDialysis facility · Harriman, TN
Industry payments (Open Payments)
- 2025$428.97 · 20 payments from 8 companies
- 2024$277.18 · 10 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Travere Therapeutics, Inc. | $105.41 | 6 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $85.86 | 4 |
| Astrazeneca Pharmaceuticals LP | $69.20 | 2 |
| Calliditas Therapeutics US Inc. | $49.40 | 3 |
| Bayer Healthcare Pharmaceuticals Inc. | $41.36 | 2 |
What the 2025 payments were for
- Food and Beverage$385.72 · 17 payments
- Education$43.25 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Nephrology providers in Oak Ridge
- 1063839041
- 1669543328