Kathryn J. Hayes, MD
NPI 1154548105ActiveIndividual· Obstetrics & Gynecology· Oak Ridge, TN
Obstetrics & Gynecology (MD) with Obstetric and Gyncologic Assocs of Oak Ridge, practicing in Oak Ridge, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $27,964 for 316 claims, against $15,582 paid for services in 2024. Sage Therapeutics, LLC was the largest of 13 companies reporting payments in 2025, $482.52 in all, mostly food and beverage. Lists Methodist Medical Center of Oak Ridge as a hospital affiliation.
Overview
| NPI | 1154548105 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 19, 2007 |
| Last updated in NPPES | May 17, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 4301088503 | MI |
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 | 101 |
|---|---|
| Services billed | 252 across 21 procedure codes |
| Paid by Medicare | $15,582 |
Part D prescriptions in 2024
| Prescriptions (claims) | 316 · 656 30-day fills |
|---|---|
| Patients | 113 |
| Total drug cost | $27,964 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Obstetric and Gyncologic Assocs of Oak RidgeOak Ridge, TN · 6 clinicians
Hospital affiliation
- Methodist Medical Center of Oak RidgeOak Ridge, TN
Industry payments (Open Payments)
- 2025$482.52 · 26 payments from 13 companies
- 2024$471.31 · 20 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sage Therapeutics, LLC | $100.98 | 5 |
| Exeltis, USA Inc. | $51.89 | 3 |
| Astellas Pharma US Inc | $50.67 | 3 |
| Organon LLC | $42.66 | 2 |
| Millicent US Inc | $40.88 | 2 |
What the 2025 payments were for
- Food and Beverage$482.52 · 26 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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