Brett Dennis Gerwin, M.D.
NPI 1306992003ActiveIndividual· Ophthalmology· Chattanooga, TN
Ophthalmology (M.D.) in Chattanooga, Tennessee, trained at University of Alabama School of Medicine (class of 2007). In 2024 Medicare paid $790,198 for 574 patients, and Part D covered 242 of their prescriptions, 46% of them generic. Regeneron Healthcare Solutions, Inc. was the largest of 6 companies reporting payments in 2025, $360.67 in all, mostly food and beverage.
Overview
| NPI | 1306992003 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jan 26, 2007 |
| Last updated in NPPES | Nov 11, 2021 |
| Certified by provider | Nov 11, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 45994 | TN |
| Ophthalmology, Retina Specialist | 207WX0107X | 45994 | TN |
| Ophthalmology | 207W00000X | 26155 | AL |
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 - Ophthalmology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 574 |
|---|---|
| Services billed | 10,401 across 37 procedure codes |
| Paid by Medicare | $790,198 |
Part D prescriptions in 2024
| Prescriptions (claims) | 242 · 309 30-day fills |
|---|---|
| Patients | 64 |
| Total drug cost | $174,655 |
| Generic share | 46% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Ophthalmology |
Hospital affiliations
- Erlanger Medical CenterChattanooga, TN
- Highlands Medical CenterScottsboro, AL
Industry payments (Open Payments)
- 2025$360.67 · 10 payments from 6 companies
- 2024$138.96 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $159.99 | 2 |
| Boston Scientific Corporation | $81.67 | 2 |
| Genentech USA, Inc. | $61.68 | 3 |
| Astellas Pharma US Inc | $21.28 | 1 |
| Apellis Pharmaceuticals, Inc. | $21.00 | 1 |
What the 2025 payments were for
- Food and Beverage$360.67 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 44 ophthalmologists in Chattanooga · All ophthalmologists in Tennessee