Nerissa Koehn, MD
NPI 1104825728ActiveIndividual· Family Medicine· Missoula, MT
Family Medicine (MD) in Missoula, Montana, trained at Harvard Medical School (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $121,473 for 2,240 claims, against $62,957 paid for services in 2024. Astellas Pharma US Inc was the largest of 3 companies reporting payments in 2024, $67.04 in all, mostly food and beverage.
Overview
| NPI | 1104825728 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 15, 2005 |
| Last updated in NPPES | Apr 18, 2022 |
| Certified by provider | Apr 18, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 12747 | 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 - Family Practice (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 173 |
|---|---|
| Services billed | 947 across 40 procedure codes |
| Paid by Medicare | $62,957 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,240 · 4,678 30-day fills |
|---|---|
| Patients | 183 |
| Total drug cost | $121,473 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Partnership Health Center IncMissoula, MT · 50 clinicians
- Western Montana Clinic PCMissoula, MT · 44 clinicians
Hospital affiliations
- Community Medical CenterMissoula, MT
- St Peters HealthHelena, MT
- St. Patrick HospitalMissoula, MT
Other facilities
- Partners in Home Care IncHome health agency · Missoula, MT
Industry payments (Open Payments)
- 2024$67.04 · 3 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $29.60 | 1 |
| Novo Nordisk Inc | $22.88 | 1 |
| Pfizer Inc. | $14.56 | 1 |
What the 2024 payments were for
- Food and Beverage$67.04 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 130 family medicine physicians in Missoula · All family medicine physicians in Montana