Brandon Hays, MD
NPI 1194221010ActiveIndividual· Obstetrics & Gynecology· Knoxville, TN
Obstetrics & Gynecology (MD) with Generations Obgyn,p.C., practicing in Knoxville, Tennessee. 39 Medicare patients in 2024, $5,489 paid; nearly all of their 66 Part D prescriptions were generic (91%). Organon LLC was the largest of 12 companies reporting payments in 2025, $316.68 in all, mostly food and beverage. Lists Parkwest Medical Center as a hospital affiliation.
Overview
| NPI | 1194221010 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 30, 2018 |
| Last updated in NPPES | Oct 19, 2026 |
| Certified by provider | Oct 19, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 67971 | 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 - Obstetrics/Gynecology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 39 |
|---|---|
| Services billed | 74 across 17 procedure codes |
| Paid by Medicare | $5,489 |
Part D prescriptions in 2024
| Prescriptions (claims) | 66 · 91 30-day fills |
|---|---|
| Patients | 23 |
| Total drug cost | $3,123 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Generations Obgyn,p.C.Knoxville, TN · 10 clinicians
Hospital affiliation
- Parkwest Medical CenterKnoxville, TN
Industry payments (Open Payments)
- 2025$316.68 · 18 payments from 12 companies
- 2024$398.63 · 21 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organon LLC | $52.06 | 2 |
| Hologic Sales and Service, LLC | $41.09 | 2 |
| Sumitomo Pharma America, Inc. | $32.55 | 2 |
| Shield Therapeutics Inc | $31.63 | 2 |
| Exeltis, USA Inc. | $31.05 | 2 |
What the 2025 payments were for
- Food and Beverage$316.68 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other OB-GYNs in Knoxville
- 1003850280
- 1124463708
- 1154390649
- 1154592897
- 1184645160
- 1184693939
- 1194044503
- 1205083060
- 1356393516
- 1417947011
- 1447546544
- 1538162896