Gregory L. Lassiter, MD
NPI 1912984758ActiveIndividual· Radiology, Diagnostic Radiology· Nashville, TN
Radiology, Diagnostic Radiology (MD) in Nashville, Tennessee, trained at University of Tennessee, Hsc, College of Medicine (class of 1995). Medicare paid $463,683 for services to 2,145 patients in 2024. Astrazeneca Pharmaceuticals LP was the largest of 14 companies reporting payments in 2025, $474.74 in all, mostly food and beverage.
Overview
| NPI | 1912984758 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 22, 2005 |
| Last updated in NPPES | Mar 3, 2021 |
| Certified by provider | Mar 3, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | 34243 | 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 - Diagnostic Radiology (KY); Practitioner - Diagnostic Radiology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,145 |
|---|---|
| Services billed | 20,065 across 99 procedure codes |
| Paid by Medicare | $463,683 |
Education and affiliations
| Medical school | University of Tennessee, Hsc, College of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Diagnostic Radiology |
Medical groups
- Radiology Alliance PCCharleston, WV · 455 clinicians
- Tennessee Oncology PLLCNashville, TN · 358 clinicians
- Adi Radiology PCNashville, TN · 151 clinicians
- Middle Tennessee Imaging LLCNashville, TN · 125 clinicians
Hospital affiliations
- Tristar Centennial Medical CenterNashville, TN
- Tristar Greenview Regional HospitalBowling Green, KY
- Tristar Hendersonville Medical CenterHendersonville, TN
- Tristar Skyline Medical CenterNashville, TN
- Tristar Summit Medical CenterHermitage, TN
Industry payments (Open Payments)
- 2025$474.74 · 19 payments from 14 companies
- 2024$27.70 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $82.49 | 3 |
| Merck Sharp & Dohme LLC | $57.30 | 2 |
| Legend Biotech USA Inc. | $55.96 | 2 |
| Janssen Biotech, Inc. | $51.08 | 2 |
| Takeda Pharmaceuticals U.S.A., Inc. | $34.73 | 1 |
What the 2025 payments were for
- Food and Beverage$474.74 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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