Claire Alexandra Mastel, PA-C
NPI 1871178202ActiveIndividual· Physician Assistant· Billings, MT
Physician Assistant (PA-C) with Frontier Psychiatry PLLC, practicing in Billings, Montana. Their prescriptions cost Medicare Part D more than their services did: $69,403 for 600 claims, against $7,528 paid for services in 2024.
Overview
| NPI | 1871178202 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Mar 17, 2021 |
| Last updated in NPPES | Jul 11, 2023 |
| Certified by provider | Jul 11, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | MED-PAC-LIC-90826 | MT |
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 - Physician Assistant (ID); Practitioner - Physician Assistant (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 16 |
|---|---|
| Services billed | 114 across 11 procedure codes |
| Paid by Medicare | $7,528 |
Part D prescriptions in 2024
| Prescriptions (claims) | 600 · 700 30-day fills |
|---|---|
| Patients | 54 |
| Total drug cost | $69,403 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Frontier Psychiatry PLLCPhoenix, AZ · 34 clinicians
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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All 175 physician assistants in Billings · All physician assistants in Montana