David Christopher Fisher, MD
NPI 1770542391ActiveIndividual· Internal Medicine, Hematology· Boston, MA
Internal Medicine, Hematology (MD) in Boston, Massachusetts, trained at University of Massachusetts Medical School (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $3,175,767 for 483 claims, against $70,409 paid for services in 2024. Genmab U.S., Inc. reported $3,518 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1770542391 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 22, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
| Certified by provider | Mar 6, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology Primary | 207RH0000X | 80650 | 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 - Medical Oncology (MA); Practitioner - Medical Oncology (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 470 |
|---|---|
| Services billed | 966 across 15 procedure codes |
| Paid by Medicare | $70,409 |
Part D prescriptions in 2024
| Prescriptions (claims) | 483 · 558 30-day fills |
|---|---|
| Patients | 113 |
| Total drug cost | $3,175,767 |
| Generic share | 57% of claims |
Education and affiliations
| Medical school | University of Massachusetts Medical School |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Dana-Farber Cancer Institute, Inc.Boston, MA · 684 clinicians
Hospital affiliations
- Beth Israel Deaconess Medical CenterBoston, MA
- Brigham and Women Faulkner HospitalJamaica Plain, MA
- Brigham and Women's HospitalBoston, MA
- Newton-Wellesley HospitalNewton, MA
Other facilities
- Mass General Brigham Home Care, IncHome health agency · Newton, MA
Industry payments (Open Payments)
- 2025$3,518 · 4 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genmab U.S., Inc. | $3,518 | 4 |
What the 2025 payments were for
- Consulting Fee$2,096 · 1 payment
- Travel and Lodging$1,296 · 1 payment
- Food and Beverage$125.69 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology providers in Boston
- 1861469249
- 1285058321
- 1376232215
- 1083935878
- 1982133658
- 1154997823
- 1356492011
- 1619046604
- 1629069075
- 1609855576
- 1093945396
- 1285642298
All Internal Medicine, Hematology providers in Massachusetts →