Donald B. Bloch, MD
NPI 1609857739ActiveIndividual· Internal Medicine, Rheumatology· Boston, MA
Internal Medicine, Rheumatology (MD) in Boston, Massachusetts, trained at Harvard Medical School (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $216,420 for 108 claims, against $4,865 paid for services in 2024.
Overview
| NPI | 1609857739 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 7, 2005 |
| Last updated in NPPES | Feb 11, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 552004 | MA |
| Internal Medicine | 207R00000X | 55204 | 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 - Rheumatology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 55 |
|---|---|
| Services billed | 69 across 7 procedure codes |
| Paid by Medicare | $4,865 |
Part D prescriptions in 2024
| Prescriptions (claims) | 108 · 206 30-day fills |
|---|---|
| Patients | 26 |
| Total drug cost | $216,420 |
| Generic share | 67% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Rheumatology |
| Secondary specialties | Internal Medicine |
Medical groups
- Massachusetts General Physicians Organization IncBoston, MA · 3,558 clinicians
- The General Hospital CorporationBoston, MA · 1,267 clinicians
Hospital affiliations
- Brigham and Women's HospitalBoston, MA
- Massachusetts General HospitalBoston, MA
- North Shore Medical Center -Salem, MA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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