Timothy K. Duffin, MD
NPI 1144291527ActiveIndividual· Urology· Clarksville, TN
Urology (MD) in Clarksville, Tennessee, trained at Georgetown University School of Medicine (class of 1988). 790 Medicare patients in 2024, $187,851 paid; nearly all of their 1,238 Part D prescriptions were generic (90%). Stryker Corporation was the largest of 3 companies reporting payments in 2024, $177.01 in all, mostly food and beverage.
Overview
| NPI | 1144291527 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 1, 2006 |
| Last updated in NPPES | Dec 16, 2020 |
| Certified by provider | Dec 9, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | 26846 | TN |
| Urology, Pediatric Urology | 2088P0231X | 26846 | TN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Urology (TN); Practitioner - Urology (VI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 790 |
|---|---|
| Services billed | 4,711 across 62 procedure codes |
| Paid by Medicare | $187,851 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,238 · 2,548 30-day fills |
|---|---|
| Patients | 315 |
| Total drug cost | $111,815 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Urology |
Industry payments (Open Payments)
- 2024$177.01 · 4 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $68.61 | 1 |
| Astellas Pharma US Inc | $59.07 | 1 |
| Tolmar, Inc. | $49.33 | 2 |
What the 2024 payments were for
- Food and Beverage$177.01 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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