Juan G. Castillo, M.D.
Family Medicine (M.D.) with Centerwell Senior Primary Care Tx PA, practicing in Edinburg, Texas. Their prescriptions cost Medicare Part D more than their services did: $801,296 for 7,700 claims, against $4,001 paid for services in 2024. Nalu Medical, Inc. was the largest of 2 companies reporting payments in 2025, $236.11 in all, mostly food and beverage. Lists Doctors Hosptal at Renaissance 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 | 1457333411 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 16, 2005 |
| Last updated in NPPES | Mar 17, 2026 |
| Certified by provider | Mar 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | M1042 | 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 | Juan Castillo · Nurse/Nurses Aide | 1128a2 | Aug 12, 1991 | New Braunfels, 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 - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 26 |
|---|---|
| Services billed | 96 across 17 procedure codes |
| Paid by Medicare | $4,001 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,700 · 16,602 30-day fills |
|---|---|
| Patients | 996 |
| Total drug cost | $801,296 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Centerwell Senior Primary Care Tx PADallas, TX · 115 clinicians
Hospital affiliation
- Doctors Hosptal at RenaissanceEdinburg, TX
Industry payments (Open Payments)
- 2025$236.11 · 5 payments from 2 companies
- 2024$88.01 · 4 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Nalu Medical, Inc. | $130.68 | 1 |
| Insulet Corporation | $105.43 | 4 |
What the 2025 payments were for
- Food and Beverage$236.11 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 92 family medicine physicians in Edinburg · All family medicine physicians in Texas