Marissa R. Hamrick, M.D.
NPI 1386905685ActiveIndividual· Family Medicine· Boston, MA
Family Medicine (M.D.) in Boston, Massachusetts, trained at University of Wisconsin School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $255,000 for 1,988 claims, against $8,032 paid for services in 2024. Exact Sciences Corporation reported $24.24 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1386905685 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 4, 2012 |
| Last updated in NPPES | Jul 20, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 261862 | MA |
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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 59 |
|---|---|
| Services billed | 119 across 12 procedure codes |
| Paid by Medicare | $8,032 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,988 · 4,099 30-day fills |
|---|---|
| Patients | 142 |
| Total drug cost | $255,000 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Family Practice |
Medical group
- Uphams Corner Health Committee IncDorchester, MA · 25 clinicians
Hospital affiliation
- Boston Medical CenterBoston, MA
Industry payments (Open Payments)
- 2025$24.24 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $24.24 | 1 |
What the 2025 payments were for
- Food and Beverage$24.24 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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