Dr. Mark Anderson, MD

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

• Brigham And Women'S Hospital Hospital · Boston, MA
• South Shore Hospital Hospital · South Weymouth, MA

Also affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Dana-Farber Cancer Institute, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 668 clinicians in the practice; 12 are shown here.

• Andrew J Aguirre, MD, PHD Medical Oncology Physician · Boston, MA
• Stephanie Ann Berg, DO Hematology (Internal Medicine) Physician · Boston, MA
• Lauren Nicole Brayton, PA-C Medical Physician Assistant · Boston, MA
• Dr. Timothy Clinton, MD Student in an Organized Health Care Education/Training Program · Boston, MA
• Jordyn Gallant, PA-C Physician Assistant · Springfield, MA
• Mrs. Erica Ann Morelli, PA Physician Assistant · Boston, MA
• Dr. Ann H Partridge, MDMPH Medical Oncology Physician · Boston, MA
• Dr. Christopher Reid Reilly, MD Student in an Organized Health Care Education/Training Program · Boston, MA
• Dr. Matthew Robertson, MD Diagnostic Radiology Physician · Columbus, OH
• Dr. Justin Simmons, MD Hematology & Oncology Physician · Boston, MA
• Dr. Christopher David Vetter, MD Surgery Physician · Boston, MA
• Dr. Haipeng Zhang, DO Hospice and Palliative Medicine (Internal Medicine) Physician · Boston, MA

Other providers in Weymouth

• Jennifer Byer, MD

  Individual Medical Oncology Physician · NPI 1336438522

  101 Columbian St, Weymouth, MA 02190-1601 · (781) 624-4800

• Randi Zukas Carhart, MD

  Individual Medical Oncology Physician · NPI 1306370168

  101 Columbian St, Weymouth, MA 02190-1601 · (781) 624-5000

• Dr. Jad El Masri, MD

  Individual Medical Oncology Physician · NPI 1306251178

  101 Columbian St, Weymouth, MA 02190-1601 · (781) 624-5000

• Temilola Onabanjo, MD, MPH

  Individual Medical Oncology Physician · NPI 1073955662

  101 Columbian St, Weymouth, MA 02190-1601 · (781) 624-5800