Timothy Graham Johnson, MD
NPI 1538488648ActiveIndividual· Surgery· Nashville, TN
Surgery (MD) with Williamson Medical Group, LLC, practicing in Nashville, Tennessee. 117 Medicare patients in 2024, $42,283 paid; nearly all of their 118 Part D prescriptions were generic (98%). Davol Inc. was the largest of 4 companies reporting payments in 2025, $111.10 in all, mostly food and beverage. Lists Williamson Medical Center as a hospital affiliation.
Overview
| NPI | 1538488648 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 28, 2010 |
| Last updated in NPPES | Jun 10, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 53854 | 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 - Pulmonary Disease (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 117 |
|---|---|
| Services billed | 287 across 49 procedure codes |
| Paid by Medicare | $42,283 |
Part D prescriptions in 2024
| Prescriptions (claims) | 118 · 122 30-day fills |
|---|---|
| Patients | 72 |
| Total drug cost | $1,229 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Pulmonary Disease |
Medical group
- Williamson Medical Group, LLCNolensville, TN · 69 clinicians
Hospital affiliation
- Williamson Medical CenterFranklin, TN
Industry payments (Open Payments)
- 2025$111.10 · 4 payments from 4 companies
- 2024$211.70 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Davol Inc. | $39.55 | 1 |
| Medtronic, Inc. | $27.49 | 1 |
| Innovation Technologies Inc | $24.54 | 1 |
| Conmed Corporation | $19.52 | 1 |
What the 2025 payments were for
- Food and Beverage$111.10 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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