Melissa Zimmerman
NPI 1689005332ActiveIndividual· Nurse Practitioner· Helena, MT
Nurse Practitioner with St Peters Health, practicing in Helena, Montana. Their prescriptions cost Medicare Part D more than their services did: $124,553 for 2,071 claims, against $16,639 paid for services in 2024. Lists St Peters Health as a hospital affiliation.
Overview
| NPI | 1689005332 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Dec 5, 2013 |
| Last updated in NPPES | Mar 28, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 100707 | MT |
| Nurse Practitioner | 363L00000X | 33155 | 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 - Nurse Practitioner (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 101 |
|---|---|
| Services billed | 265 across 15 procedure codes |
| Paid by Medicare | $16,639 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,071 · 4,899 30-day fills |
|---|---|
| Patients | 148 |
| Total drug cost | $124,553 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- St Peters HealthHelena, MT · 199 clinicians
Hospital affiliation
- St Peters HealthHelena, MT
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 30 nurse practitioners in Helena · All nurse practitioners in Montana