Caryn Louisa Shahin, PMHNP
NPI 1518584424ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Phoenix, AZ
Nurse Practitioner, Psych/Mental Health (PMHNP) with Southwest Network, practicing in Phoenix, Arizona. Their prescriptions cost Medicare Part D more than their services did: $1,069,436 for 4,977 claims, against $15,937 paid for services in 2024. Alkermes, Inc. was the largest of 6 companies reporting payments in 2025, $508.73 in all, mostly food and beverage.
Overview
| NPI | 1518584424 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PMHNP |
| Sole proprietor | No |
| NPI issued | Jun 26, 2020 |
| Last updated in NPPES | Jun 26, 2020 |
| Certified by provider | Jun 26, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 242534 | AZ |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 36 |
|---|---|
| Services billed | 183 across 6 procedure codes |
| Paid by Medicare | $15,937 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,977 · 5,494 30-day fills |
|---|---|
| Patients | 173 |
| Total drug cost | $1,069,436 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Southwest NetworkPhoenix, AZ · 26 clinicians
Industry payments (Open Payments)
- 2025$508.73 · 14 payments from 6 companies
- 2024$441.10 · 11 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alkermes, Inc. | $175.47 | 3 |
| E.R. Squibb & Sons, L.L.C. | $135.27 | 3 |
| Neurocrine Biosciences, Inc. | $92.45 | 4 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $59.59 | 2 |
| Teva Pharmaceuticals USA, Inc. | $25.24 | 1 |
What the 2025 payments were for
- Food and Beverage$508.73 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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