Mallory J. Buck, APRN
NPI 1881145050ActiveIndividual· Nurse Practitioner, Gerontology· Missoula, MT
Nurse Practitioner, Gerontology (APRN) with Providence Health and Services Mt, practicing in Missoula, Montana. Their prescriptions cost Medicare Part D more than their services did: $35,522 for 481 claims, against $9,905 paid for services in 2024. Abbott Laboratories was the largest of 5 companies reporting payments in 2025, $326.82 in all, mostly food and beverage. Lists St. Patrick Hospital as a hospital affiliation.
Overview
| NPI | 1881145050 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN |
| Sole proprietor | No |
| NPI issued | Oct 21, 2016 |
| Last updated in NPPES | Oct 30, 2024 |
| Certified by provider | Oct 30, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | NUR-APRN-LIC-242130 | MT |
| Nurse Practitioner | 363L00000X | 113040 | NE |
| Nurse Practitioner | 363L00000X | NUR-APRN-LIC-242130 | 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); Practitioner - Nurse Practitioner (NE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 83 |
|---|---|
| Services billed | 124 across 7 procedure codes |
| Paid by Medicare | $9,905 |
Part D prescriptions in 2024
| Prescriptions (claims) | 481 · 894 30-day fills |
|---|---|
| Patients | 116 |
| Total drug cost | $35,522 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Providence Health and Services MtMissoula, MT · 362 clinicians
Hospital affiliation
- St. Patrick HospitalMissoula, MT
Industry payments (Open Payments)
- 2025$326.82 · 5 payments from 5 companies
- 2024$278.58 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $158.38 | 1 |
| Abiomed | $106.53 | 1 |
| Heartflow, Inc. | $28.87 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $18.64 | 1 |
| Impulse Dynamics (USA) Inc. | $14.40 | 1 |
What the 2025 payments were for
- Food and Beverage$326.82 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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