Davidson H. Hamer, MD
NPI 1790741841ActiveIndividual· Internal Medicine, Infectious Disease· Boston, MA
Internal Medicine, Infectious Disease (MD) in Boston, Massachusetts, trained at University of Vermont College of Medicine (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $106,864 for 97 claims, against $1,341 paid for services in 2024. Bavarian Nordic A/S was the largest of 5 companies reporting payments in 2025, $141,737 in all, mostly grants.
Overview
| NPI | 1790741841 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 25, 2006 |
| Last updated in NPPES | Jun 5, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 73333 | MA |
| Internal Medicine | 207R00000X | 73333 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Infectious Disease (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 11 |
|---|---|
| Services billed | 18 across 7 procedure codes |
| Paid by Medicare | $1,341 |
Part D prescriptions in 2024
| Prescriptions (claims) | 97 · 116 30-day fills |
|---|---|
| Total drug cost | $106,864 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Vermont College of Medicine |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
Medical group
- Evans Medical Foundation IncBoston, MA · 536 clinicians
Hospital affiliation
- Boston Medical CenterBoston, MA
Industry payments (Open Payments)
- 2025$141,737 · 25 payments from 5 companies
- 2024$30,889 · 17 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bavarian Nordic A/S | $118,973 | 5 |
| Takeda Pharmaceuticals U.S.A., Inc. | $11,390 | 5 |
| Sanofi Pasteur Inc. | $5,976 | 8 |
| Valneva Austria Gmbh | $4,083 | 4 |
| Valneva USA, Inc. | $1,316 | 3 |
What the 2025 payments were for
- Grant$106,643 · 1 payment
- Consulting Fee$28,928 · 14 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$4,001 · 2 payments
- Travel and Lodging$1,768 · 4 payments
- Food and Beverage$397.80 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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