Karen L. Hasty, M.D.
NPI 1053378596ActiveIndividual· Obstetrics & Gynecology· San Antonio, TX
Obstetrics & Gynecology (M.D.) with Four Seasons OB/GYN, M.D., P.A., practicing in San Antonio, Texas. Their prescriptions cost Medicare Part D more than their services did: $16,410 for 372 claims, against $6,541 paid for services in 2024. Mayne Pharma Commercial LLC was the largest of 9 companies reporting payments in 2025, $447.37 in all, mostly food and beverage. Lists Methodist Hospital as a hospital affiliation.
Overview
| NPI | 1053378596 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 27, 2006 |
| Last updated in NPPES | Sep 9, 2025 |
| Certified by provider | Sep 9, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | K5550 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 62 |
|---|---|
| Services billed | 138 across 15 procedure codes |
| Paid by Medicare | $6,541 |
Part D prescriptions in 2024
| Prescriptions (claims) | 372 · 876 30-day fills |
|---|---|
| Patients | 83 |
| Total drug cost | $16,410 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Four Seasons OB/GYN, M.D., P.A.San Antonio, TX · 2 clinicians
Hospital affiliation
- Methodist HospitalSan Antonio, TX
Industry payments (Open Payments)
- 2025$447.37 · 27 payments from 9 companies
- 2024$598.68 · 38 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mayne Pharma Commercial LLC | $154.75 | 11 |
| Astellas Pharma US Inc | $113.59 | 6 |
| Biogen, Inc. | $52.00 | 3 |
| Millicent US Inc | $37.11 | 2 |
| Pfizer Inc. | $24.60 | 1 |
What the 2025 payments were for
- Food and Beverage$447.37 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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