Maria Theresa Castillo, PA
NPI 1093792616ActiveIndividual· Physician Assistant, Medical· San Antonio, TX
Physician Assistant, Medical (PA) with Texas Liver Consultants PA, practicing in San Antonio, Texas. Their prescriptions cost Medicare Part D more than their services did: $116,783 for 251 claims, against $8,099 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 6 companies reporting payments in 2025, $1,181 in all, mostly food and beverage.
Overview
| NPI | 1093792616 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Dec 23, 2005 |
| Last updated in NPPES | Mar 4, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | PA04462 | 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 - Physician Assistant (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 135 |
|---|---|
| Services billed | 159 across 7 procedure codes |
| Paid by Medicare | $8,099 |
Part D prescriptions in 2024
| Prescriptions (claims) | 251 · 324 30-day fills |
|---|---|
| Patients | 57 |
| Total drug cost | $116,783 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Texas Liver Consultants PASan Antonio, TX · 34 clinicians
Industry payments (Open Payments)
- 2025$1,181 · 42 payments from 6 companies
- 2024$710.07 · 23 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $458.85 | 11 |
| Ipsen Biopharmaceuticals, Inc | $293.10 | 18 |
| Gilead Sciences, Inc. | $247.21 | 9 |
| Novo Nordisk Inc | $124.36 | 1 |
| Orphalan Inc | $36.62 | 2 |
What the 2025 payments were for
- Food and Beverage$1,181 · 42 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 211 physician assistants in San Antonio · All physician assistants in Texas