Catherine Callahan, PA
NPI 1083159917ActiveIndividual· Physician Assistant· Austin, TX
Physician Assistant (PA) in Austin, Texas, licensed in TX, with an NPI issued in January 2017. Part D covered 42 prescriptions written in 2024, 90% of them generic. Sumitomo Pharma America, Inc. was the largest of 3 companies reporting payments in 2025, $81.08 in all, mostly food and beverage.
Overview
| NPI | 1083159917 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | Yes |
| NPI issued | Jan 2, 2017 |
| Last updated in NPPES | Jan 2, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA10378 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 42 · 97 30-day fills |
|---|---|
| Patients | 15 |
| Total drug cost | $5,118 |
| Generic share | 90% of claims |
Industry payments (Open Payments)
- 2025$81.08 · 4 payments from 3 companies
- 2024$773.16 · 50 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sumitomo Pharma America, Inc. | $33.53 | 2 |
| Abbvie Inc. | $27.70 | 1 |
| Millicent US Inc | $19.85 | 1 |
What the 2025 payments were for
- Food and Beverage$81.08 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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