Marina Grigorian, M.D.
NPI 1255452363ActiveIndividual· Hospitalist· Chattanooga, TN
Hospitalist (M.D.) in Chattanooga, Tennessee, licensed in TN, with an NPI issued in April 2007. Enrolled in Medicare as practitioner - internal medicine. Medtronic, Inc. was the largest of 3 companies reporting payments in 2025, $126.42 in all, mostly food and beverage.
Overview
| NPI | 1255452363 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 3, 2007 |
| Last updated in NPPES | Dec 12, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 42962 | TN |
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 - Internal Medicine (TN) |
|---|
Industry payments (Open Payments)
- 2025$126.42 · 6 payments from 3 companies
- 2024$45.59 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $62.44 | 3 |
| Beta Bionics, Inc. | $47.93 | 2 |
| Neurocrine Biosciences, Inc. | $16.05 | 1 |
What the 2025 payments were for
- Food and Beverage$126.42 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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