Erica Martinez-Castro, NP
NPI 1659149870ActiveIndividual· Nurse Practitioner, Primary Care· San Antonio, TX
Nurse Practitioner, Primary Care (NP) with Wellmed Medical Group PA, practicing in San Antonio, Texas. Mostly services rather than prescriptions: Medicare paid $290,814 for 26 patients in 2024, with only 30 Part D claims. Boston Scientific Corporation was the largest of 15 companies reporting payments in 2025, $1,915 in all, mostly food and beverage.
Overview
| NPI | 1659149870 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Dec 18, 2023 |
| Last updated in NPPES | Oct 16, 2026 |
| Certified by provider | Oct 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Primary Care Primary | 363LP2300X | 1140174 | 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 - Nurse Practitioner (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 26 |
|---|---|
| Services billed | 579 across 16 procedure codes |
| Paid by Medicare | $290,814 |
Part D prescriptions in 2024
| Prescriptions (claims) | 30 · 34 30-day fills |
|---|---|
| Patients | 14 |
| Total drug cost | $401.12 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Wellmed Medical Group PASan Antonio, TX · 646 clinicians
Industry payments (Open Payments)
- 2025$1,915 · 19 payments from 15 companies
- 2024$650.04 · 6 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $285.03 | 2 |
| Teva Pharmaceuticals USA, Inc. | $247.42 | 2 |
| Amgen Inc. | $167.99 | 1 |
| Convatec Inc. | $145.82 | 1 |
| Astrazeneca Pharmaceuticals LP | $124.99 | 1 |
What the 2025 payments were for
- Food and Beverage$1,915 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 56 primary care nurse practitioners in San Antonio · All primary care nurse practitioners in Texas