Martin Castillo, PA-C
NPI 1720729403ActiveIndividual· Physician Assistant· Austin, TX
Physician Assistant (PA-C) in Austin, Texas, with an NPI issued in April 2022. Their prescriptions cost Medicare Part D more than their services did: $147,733 for 1,510 claims, against $22,217 paid for services in 2024. Abbott Laboratories was the largest of 5 companies reporting payments in 2025, $745.58 in all, mostly food and beverage.
Overview
| NPI | 1720729403 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Apr 5, 2022 |
| Last updated in NPPES | Nov 18, 2022 |
| Certified by provider | Nov 18, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | — |
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 - Physician Assistant (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 123 |
|---|---|
| Services billed | 487 across 9 procedure codes |
| Paid by Medicare | $22,217 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,510 · 1,968 30-day fills |
|---|---|
| Patients | 432 |
| Total drug cost | $147,733 |
| Generic share | 93% of claims |
Industry payments (Open Payments)
- 2025$745.58 · 19 payments from 5 companies
- 2024$2,790 · 93 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $602.66 | 12 |
| Collegium Pharmaceutical, Inc. | $64.22 | 3 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $41.61 | 2 |
| Vertex Pharmaceuticals Incorporated | $22.58 | 1 |
| Pfizer Inc. | $14.51 | 1 |
What the 2025 payments were for
- Food and Beverage$745.58 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 631 physician assistants in Austin · All physician assistants in Texas