Mark Anderson, MD
NPI 1588652093ActiveIndividual· Internal Medicine, Medical Oncology· Weymouth, MA
Internal Medicine, Medical Oncology (MD) in Weymouth, Massachusetts, trained at Jefferson Medical College of Thomas Jefferson University (class of 1980). Their prescriptions cost Medicare Part D more than their services did: $1,683,214 for 549 claims, against $67,455 paid for services in 2024. Pharmaessentia USA Corporation was the largest of 2 companies reporting payments in 2025, $45.27 in all, mostly food and beverage.
Overview
| NPI | 1588652093 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 10, 2005 |
| Last updated in NPPES | Feb 21, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 56345 | MA |
| Internal Medicine, Hematology | 207RH0000X | 56345 | 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 - Hematology/Oncology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 313 |
|---|---|
| Services billed | 882 across 11 procedure codes |
| Paid by Medicare | $67,455 |
Part D prescriptions in 2024
| Prescriptions (claims) | 549 · 730 30-day fills |
|---|---|
| Patients | 102 |
| Total drug cost | $1,683,214 |
| Generic share | 68% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Dana-Farber Cancer Institute, Inc.Boston, MA · 684 clinicians
Hospital affiliations
- Brigham and Women's HospitalBoston, MA
- South Shore HospitalSouth Weymouth, MA
Industry payments (Open Payments)
- 2025$45.27 · 2 payments from 2 companies
- 2024$18.09 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pharmaessentia USA Corporation | $22.64 | 1 |
| Adaptive Biotechnologies Corporation | $22.63 | 1 |
What the 2025 payments were for
- Food and Beverage$45.27 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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