Michael J. Castillo, CNP
NPI 1811144884ActiveIndividual· Nurse Practitioner· Las Cruces, NM
Nurse Practitioner (CNP) with Las Cruces Physician Practices, LLC and 1 other group, practicing in Las Cruces, New Mexico. Their prescriptions cost Medicare Part D more than their services did: $109,556 for 1,452 claims, against $60,027 paid for services in 2024. Lilly USA, LLC was the largest of 6 companies reporting payments in 2025, $194.75 in all, mostly food and beverage. Lists Memorial Medical Center as a hospital affiliation.
Overview
| NPI | 1811144884 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CNP |
| Sole proprietor | No |
| NPI issued | Aug 21, 2008 |
| Last updated in NPPES | Aug 17, 2026 |
| Certified by provider | Aug 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | CNP01190 | NM |
| Nurse Practitioner, Family | 363LF0000X | R48333 | NM |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (NM) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 483 |
|---|---|
| Services billed | 877 across 29 procedure codes |
| Paid by Medicare | $60,027 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,452 · 1,918 30-day fills |
|---|---|
| Patients | 525 |
| Total drug cost | $109,556 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Las Cruces Physician Practices, LLCLas Cruces, NM · 109 clinicians
- Southwest Emergency Medical Associates of Nm PCLas Cruces, NM · 55 clinicians
Hospital affiliation
- Memorial Medical CenterLas Cruces, NM
Industry payments (Open Payments)
- 2025$194.75 · 10 payments from 6 companies
- 2024$160.60 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $60.55 | 3 |
| Astrazeneca Pharmaceuticals LP | $42.10 | 2 |
| Novo Nordisk Inc | $40.62 | 2 |
| Xeris Pharmaceuticals, Inc. | $22.98 | 1 |
| Amgen Inc. | $14.78 | 1 |
What the 2025 payments were for
- Food and Beverage$194.75 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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