Martha Alice Castillo, NURSE PRACTITIONER
Nurse Practitioner, Primary Care (NURSE PRACTITIONER) with Hospital Medicine Services of Tx, PLLC, practicing in Houston, Texas. In 2024 Medicare paid $47,050 for 236 patients, and Part D covered 98 of their prescriptions, 83% of them generic. Janssen Pharmaceuticals, Inc was the largest of 2 companies reporting payments in 2024, $36.92 in all, mostly food and beverage. Lists HCA Houston Healthcare Kingwood as a hospital affiliation. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1275756140 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NURSE PRACTITIONER |
| Sole proprietor | No |
| NPI issued | Apr 10, 2007 |
| Last updated in NPPES | Nov 8, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Primary Care Primary | 363LP2300X | 742171 | TX |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in Texas, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Martha Castillo · Personal Care Provid | 1128a1 | Oct 20, 2025 | Brownsville, TX |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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 - Nurse Practitioner (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 236 |
|---|---|
| Services billed | 815 across 7 procedure codes |
| Paid by Medicare | $47,050 |
Part D prescriptions in 2024
| Prescriptions (claims) | 98 · 190 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $18,115 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Hospital Medicine Services of Tx, PLLCLive Oak, TX · 378 clinicians
Hospital affiliation
- HCA Houston Healthcare KingwoodKingwood, TX
Industry payments (Open Payments)
- 2024$36.92 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Janssen Pharmaceuticals, Inc | $19.68 | 1 |
| Ethicon US, LLC | $17.24 | 1 |
What the 2024 payments were for
- Food and Beverage$36.92 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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