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Oncologists in Massachusetts

Data updated monthly · Last refresh October 2026

425 Medical Oncology providers practice in Massachusetts, including 209 (49%) offering telehealth. The largest concentration is in Boston. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

425providers
209telehealth
Bostontop city

Medical Oncology by city in Massachusetts

Choose a city to see providers there.

Medical Oncology in Boston342 providers
Medical Oncology in Weymouth11 providers
Medical Oncology in Springfield9 providers
Medical Oncology in Burlington9 providers
Medical Oncology in Cambridge8 providers
Medical Oncology in Framingham4 providers
Medical Oncology in Hyannis3 providers
Medical Oncology in Worcester3 providers
Medical Oncology in Newton3 providers
Medical Oncology in Holyoke2 providers
Medical Oncology in Methuen2 providers
Medical Oncology in Plymouth2 providers
Medical Oncology in Attleboro2 providers
Medical Oncology in Milford2 providers
Medical Oncology in Waltham2 providers
Medical Oncology in Harwich2 providers
Medical Oncology in Foxborough2 providers
Medical Oncology in Peabody2 providers
Medical Oncology in Weston1 providers
Medical Oncology in Concord1 providers
Medical Oncology in Northampton1 providers
Medical Oncology in Marlborough1 providers
Medical Oncology in Fall River1 providers
Medical Oncology in Dartmouth1 providers

Medical Oncology providers in Massachusetts

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Joyce Mccaffrey, M.D.
Burlington, MA · No drug or device payments recorded (2025) · (781) 744-5100
Dr. Neela Natarajan, MD
Burlington, MA · No drug or device payments recorded (2025) · Telehealth · (781) 744-5100
Dr. Ragisha Gopalakrishnan, M.D.
Burlington, MA · $101 in drug and device payments (2025) · Telehealth · (781) 744-8000
Dr. Russell Baur, MD
Burlington, MA · No drug or device payments recorded (2025) · Telehealth · (781) 744-8000
Dr. Saleem Meerani, M.D
Burlington, MA · No drug or device payments recorded (2025) · (781) 744-8000
Dr. Sunil Bhatt, MD
Burlington, MA · $25,000 in drug and device payments (2025) · (781) 744-8000
Dr. Anthony Boral, M.D.
Cambridge, MA · No drug or device payments recorded (2025) · (617) 444-1351
Dr. Catherine Meador, MD, PHD
Cambridge, MA · $13,132 in drug and device payments (2025) · Telehealth · (617) 876-4344
Dr. Cynthia Sirard, M.D.
Cambridge, MA · No drug or device payments recorded (2025) · (617) 768-6337
Dr. Elizabeth Trehu, M.D.
Cambridge, MA · No drug or device payments recorded (2025) · (617) 761-8691
Dr. Eric Westin, MD
Cambridge, MA · No drug or device payments recorded (2025) · (617) 761-4774
Dr. Frank Hsu, MD
Cambridge, MA · No drug or device payments recorded (2025) · (617) 761-8848
Dr. Larry Nathanson, M.D.
Cambridge, MA · No drug or device payments recorded (2025) · (617) 547-5022
Dr. Matthew Sherman, M.D.
Cambridge, MA · No drug or device payments recorded (2025) · (617) 576-2220
Dr. Kimberly Brennan, D.O.
Concord, MA · No drug or device payments recorded (2025) · (978) 987-3436
Dr. John Niedzwicki, M.D.
Dartmouth, MA · $53 in drug and device payments (2025) · (508) 996-3991
Dr. Diane Paggioli
Fall River, MA · No drug or device payments recorded (2025) · Telehealth · (508) 235-5226
Dr. Herbert Dean, M.D.
Falmouth, MA · No drug or device payments recorded (2025) · (508) 457-6463
Dr. Jonathan Wischhusen, M.D.
Foxborough, MA · No drug or device payments recorded (2025) · Telehealth · (508) 543-1700
Dr. Robert Gaudet, M.D.
Foxborough, MA · No drug or device payments recorded (2025) · Telehealth · (508) 543-1700
Dr. Jack Leitner, MD
Framingham, MA · No drug or device payments recorded (2025) · (508) 875-1964
Dr. John Krikorian, M.D.
Framingham, MA · No drug or device payments recorded (2025) · (508) 383-1241
Dr. Laercio Lopes Da Silva, MD
Framingham, MA · $292 in drug and device payments (2025) · (508) 383-1330
Dr. Vivek Samnotra, MD
Framingham, MA · No drug or device payments recorded (2025) · (508) 383-8510
Dr. M. Donnelly, M.D.
Gardner, MA · $239 in drug and device payments (2025) · (978) 630-6457
Dr. Monica Smith, MD
Harwich, MA · No drug or device payments recorded (2025) · (508) 432-4100
Dr. Qiang Nai, MD
Harwich, MA · $1,529 in drug and device payments (2025) · Telehealth · (617) 785-2066
Dr. Robert Byrne, M.D.
Holyoke, MA · No drug or device payments recorded (2025) · Telehealth · (413) 538-9694
Dr. Zubeena Mateen, M.D.
Holyoke, MA · $45 in drug and device payments (2025) · (413) 534-2543
Dr. David Lovett, MD
Hyannis, MA · $259 in drug and device payments (2025) · Telehealth · (508) 862-7575
Dr. Henry Casey, MD
Hyannis, MA · No drug or device payments recorded (2025) · (508) 862-7575
Dr. Kelly Swanson, DO
Hyannis, MA · No drug or device payments recorded (2025) · (508) 862-7575
Dr. Charles Rosenbaum, M.D.
Marlborough, MA · No drug or device payments recorded (2025) · (508) 481-4213
Dr. K. Robert Mcintire, M.D.
Mashpee, MA · No drug or device payments recorded (2025) · (508) 477-7090
Dr. Ahmad Kassem
Methuen, MA · No drug or device payments recorded (2025) · Telehealth · (978) 620-2020
Dr. Taylor Ortiz, MD
Methuen, MA · $79 in drug and device payments (2025) · Telehealth · (978) 620-2020
Dr. Alexei Shimanovsky, M.D.,
Milford, MA · No drug or device payments recorded (2025) · Telehealth · (508) 448-3700
Dr. Daniel Fein, M.D.
Milford, MA · $22 in drug and device payments (2025) · Telehealth · (508) 488-3700
Dr. Timothy Ernst, M.D.
Natick, MA · No drug or device payments recorded (2025) · (508) 655-0065
Dr. Barbara Healey, M.D
Newton, MA · No drug or device payments recorded (2025) · (617) 658-6000
Dr. Caroline Block, MD
Newton, MA · No drug or device payments recorded (2025) · (617) 658-6000
Dr. Mark Huberman, MD
Newton, MA · No drug or device payments recorded (2025) · (617) 610-4097
Dr. Deborah Smith, MD
Northampton, MA · No drug or device payments recorded (2025) · Telehealth · (413) 582-2900
Dr. Joel Schwartz, MD
Peabody, MA · $43 in drug and device payments (2025) · Telehealth · (978) 977-3434
Dr. Ronald Weinger, MD
Peabody, MA · No drug or device payments recorded (2025) · (978) 977-3434
Dr. James Koomey, M.D.
Plymouth, MA · No drug or device payments recorded (2025) · (508) 830-2390
Dr. Sualp Tansan, M.D.
Plymouth, MA · No drug or device payments recorded (2025) · (508) 746-4961
Dr. William Slichenmyer, M.D.
Sherborn, MA · No drug or device payments recorded (2025) · (508) 650-3403
Dr. Armen Asik, M.D
Springfield, MA · $4,414 in drug and device payments (2025) · Telehealth · (413) 794-9338
Dr. Deborah Katz, MD
Springfield, MA · No drug or device payments recorded (2025) · (413) 794-9338

Common questions

How many Medical Oncology providers are in Massachusetts?

There are 425 Medical Oncology providers with active NPI records practicing in Massachusetts, according to federal NPPES data refreshed monthly.

Do Medical Oncology providers in Massachusetts offer telehealth?

Yes. 209 of the 425 Medical Oncology providers in Massachusetts (about 49%) report offering telehealth services in CMS data.

Which cities in Massachusetts have the most Medical Oncology providers?

Boston (342), Weymouth (11), Springfield (9) have the highest concentration of Medical Oncology providers in Massachusetts.

How many Medical Oncology providers in Massachusetts received drug or device company payments?

194 of 425 Medical Oncology providers in Massachusetts (46%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Oncologists in Massachusetts work in independent practices or large health systems?

Among 280 Oncologists in Massachusetts enrolled in Medicare, 4% bill through a solo or small practice with fewer than 10 clinicians, 0% through a mid-size group of 10 to 99, and 96% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Oncologists in Massachusetts work at?

According to CMS facility affiliation records, the Massachusetts hospitals where the most Oncologists hold privileges are Brigham and Women's Hospital in Boston; Massachusetts General Hospital in Boston; Brigham and Women Faulkner Hospital in Jamaica Plain.

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Medical Oncology in Massachusetts? Get featured.