Marcia L. O Brien, M.D.
NPI 1558348524ActiveIndividual· Family Medicine· Rochester, MN
Family Medicine (M.D.) in Rochester, Minnesota, trained at University of Wisconsin School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $185,675 for 1,414 claims, against $36,463 paid for services in 2024. Viiv Healthcare Company reported $27.69 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1558348524 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 29, 2005 |
| Last updated in NPPES | Aug 19, 2020 |
| Certified by provider | Aug 19, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 43748 | MN |
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 (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 204 |
|---|---|
| Services billed | 550 across 35 procedure codes |
| Paid by Medicare | $36,463 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,414 · 3,281 30-day fills |
|---|---|
| Patients | 166 |
| Total drug cost | $185,675 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Mayo ClinicRochester, MN · 4,956 clinicians
Hospital affiliation
- Mayo Clinic Hospital RochesterRochester, MN
Industry payments (Open Payments)
- 2025$27.69 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $27.69 | 1 |
What the 2025 payments were for
- Food and Beverage$27.69 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 200 family medicine physicians in Rochester · All family medicine physicians in Minnesota