Ramanujan Samavedy, M.D.
NPI 1922167790ActiveIndividual· Internal Medicine, Gastroenterology· Knoxville, TN
Internal Medicine, Gastroenterology (M.D.) with Gastrointestinal Associates PC, practicing in Knoxville, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $1,365,819 for 1,285 claims, against $143,843 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $1,072 in all, mostly food and beverage. Lists Fort Loudoun Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1922167790 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 7, 2006 |
| Last updated in NPPES | Sep 4, 2022 |
| Certified by provider | Sep 4, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 43555 | TN |
| Internal Medicine | 207R00000X | 01047807A | IN |
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 - Gastroenterology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 717 |
|---|---|
| Services billed | 1,312 across 61 procedure codes |
| Paid by Medicare | $143,843 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,285 · 2,026 30-day fills |
|---|---|
| Patients | 536 |
| Total drug cost | $1,365,819 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Gastrointestinal Associates PCKnoxville, TN · 33 clinicians
Hospital affiliations
- Fort Loudoun Medical CenterLenoir City, TN
- Fort Sanders Regional Medical CenterKnoxville, TN
- Methodist Medical Center of Oak RidgeOak Ridge, TN
- Parkwest Medical CenterKnoxville, TN
- University Health System, IncKnoxville, TN
Industry payments (Open Payments)
- 2025$1,072 · 53 payments from 15 companies
- 2024$880.34 · 51 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $227.28 | 20 |
| Janssen Biotech, Inc. | $197.15 | 4 |
| Aimmune Therapeutics, Inc. | $151.22 | 6 |
| Ferring Pharmaceuticals Inc. | $97.26 | 3 |
| Ardelyx, Inc. | $56.11 | 2 |
What the 2025 payments were for
- Food and Beverage$1,072 · 53 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 56 gastroenterologists in Knoxville · All gastroenterologists in Tennessee