Mark J. Brenner, MD
NPI 1902873409ActiveIndividual· Radiology, Diagnostic Radiology· Worcester, MA
Radiology, Diagnostic Radiology (MD) in Worcester, Massachusetts, trained at Tufts University School of Medicine (class of 1981). Mostly services rather than prescriptions: Medicare paid $75,365 for 87 patients in 2024, with only 46 Part D claims. Bioprotect Medical, Inc. was the largest of 7 companies reporting payments in 2025, $489.91 in all, mostly food and beverage.
Overview
| NPI | 1902873409 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 2, 2006 |
| Last updated in NPPES | May 26, 2026 |
| Certified by provider | May 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | 54099 | MA |
| Radiology, Radiation Oncology | 2085R0001X | D0041640 | MD |
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 - Radiation Oncology (MA); Practitioner - Radiation Oncology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 87 |
|---|---|
| Services billed | 1,135 across 25 procedure codes |
| Paid by Medicare | $75,365 |
Part D prescriptions in 2024
| Prescriptions (claims) | 46 · 61 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $1,476 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Radiation Oncology |
Medical groups
- The Monroe Clinic, Inc.Monroe, WI · 199 clinicians
- Saint Vincent Physician Services IncWorcester, MA · 71 clinicians
Hospital affiliations
- St Vincent HospitalWorcester, MA
- The Monroe ClinicMonroe, WI
Industry payments (Open Payments)
- 2025$489.91 · 9 payments from 7 companies
- 2024$143.74 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bioprotect Medical, Inc. | $130.98 | 2 |
| Eisai Inc. | $123.22 | 1 |
| Astrazeneca Pharmaceuticals LP | $98.30 | 1 |
| Telix Pharmaceuticals | $39.73 | 2 |
| Boston Scientific Corporation | $38.27 | 1 |
What the 2025 payments were for
- Food and Beverage$489.91 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 162 diagnostic radiologists in Worcester · All diagnostic radiologists in Massachusetts