Mandeep S. Grewal, MD
NPI 1447256862ActiveIndividual· Internal Medicine, Nephrology· Chattanooga, TN
Internal Medicine, Nephrology (MD) with Yium, Shenouda and Miller Ptrshp, practicing in Chattanooga, Tennessee. In 2024 Medicare paid $308,038 for 541 patients, and Part D covered 1,309 of their prescriptions, 88% of them generic. Amgen Inc. was the largest of 2 companies reporting payments in 2025, $31.14 in all, mostly food and beverage. Lists Erlanger Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1447256862 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 21, 2005 |
| Last updated in NPPES | May 14, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 26508 | TN |
| Internal Medicine, Nephrology | 207RN0300X | 035642 | 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 - Nephrology (GA); Practitioner - Nephrology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 541 |
|---|---|
| Services billed | 7,582 across 60 procedure codes |
| Paid by Medicare | $308,038 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,309 · 3,056 30-day fills |
|---|---|
| Patients | 197 |
| Total drug cost | $161,366 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Nephrology |
Medical group
- Yium, Shenouda and Miller PtrshpChattanooga, TN · 51 clinicians
Hospital affiliations
- Erlanger Medical CenterChattanooga, TN
- Memorial Healthcare System, IncChattanooga, TN
- Parkridge Medical CenterChattanooga, TN
Other facilities
- Dci JasperDialysis facility · Jasper, TN
- Encompass Health Rehabilitation Hospital of ChattaInpatient rehabilitation facility · Chattanooga, TN
Industry payments (Open Payments)
- 2025$31.14 · 3 payments from 2 companies
- 2024$31.08 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $17.71 | 1 |
| Travere Therapeutics, Inc. | $13.43 | 2 |
What the 2025 payments were for
- Food and Beverage$17.71 · 1 payment
- Education$13.43 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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