Alyssa Mares, MSN, APRN-CNP
NPI 1356986947ActiveIndividual· Nurse Practitioner· Santa Fe, NM
Nurse Practitioner (MSN, APRN-CNP) with John S Caskey MD LLC, practicing in Santa Fe, New Mexico. Their prescriptions cost Medicare Part D more than their services did: $159,107 for 2,329 claims, against $60,978 paid for services in 2024. Lists Christus St Vincent Regional Medical Center as a hospital affiliation.
Overview
| NPI | 1356986947 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MSN, APRN-CNP |
| Sole proprietor | No |
| NPI issued | Nov 7, 2019 |
| Last updated in NPPES | Apr 27, 2026 |
| Certified by provider | Apr 27, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 58005 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 420 |
|---|---|
| Services billed | 1,583 across 40 procedure codes |
| Paid by Medicare | $60,978 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,329 · 4,887 30-day fills |
|---|---|
| Patients | 354 |
| Total drug cost | $159,107 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- John S Caskey MD LLCSanta Fe, NM · 5 clinicians
Hospital affiliation
- Christus St Vincent Regional Medical CenterSanta Fe, NM
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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