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Gastroenterologists who accept Medicare in Needham, MA
CMS lists 19 clinicians in this specialty with a practice address in Needham. Accept Medicare assignment (the Medicare-approved amount as full payment): 19. Offer telehealth: 17.
Typical amounts Medicare approves in ZIP 02494 (2024 Medicare rates, the latest CMS has published): a new-patient visit $144, of which you pay about $36; a follow-up visit $111, of which you pay about $28 — the 20% coinsurance after the yearly Part B deductible. Clinicians who don't accept assignment can charge up to 15% more; with a Medicare Advantage plan, your plan's copay applies instead.
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Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
Charles T. Buzanis, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1988 · Un of California, Irvine, College of MedicineFemaleAurada Cholapranee, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2014FemaleSteven B. Cohen, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1990 · Georgetown University School of MedicineMaleZhuo Z. Geng, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2014FemaleSeth E. Homer
✓ Accepts Medicare assignment✓ TelehealthGraduated 2005 · Tufts University School of MedicineMaleDrug and device company payments (2025): $139Fernando J. Martinez, MD
✓ Accepts Medicare assignmentGraduated 2007 · University of Miami, LM Miller School of MedicineMaleDaniel S. Mishkin, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1998 · Mcgill University, Faculty of MedicineMaleDrug and device company payments (2025): $500David B. Nagle, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2016MaleDrug and device company payments (2025): $139John Paul Nsubuga, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2019 · University of Vermont College of MedicineMaleDrug and device company payments (2025): $561Sveta S. Oza, MD
✓ Accepts Medicare assignmentGraduated 2009FemaleJames K. Piper, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1974 · University of Michigan Medical SchoolMaleDrug and device company payments (2025): $566Jacques J. Reichling, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1980MaleStephen R. Rotman, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2010 · New York Medical CollegeMaleDrug and device company payments (2025): $3,206Steven J. Shields, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1987 · Tufts University School of MedicineMaleMichal F. Tomczak, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2000MaleSonal M. Ullman, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1999 · Tufts University School of MedicineFemaleDrug and device company payments (2025): $60Elisa L. Valente, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2002 · Boston University School of MedicineFemaleAlan C. Wong, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2009 · Albert Einstein College of Medicine of Yeshiva UniversityMaleBryan Zoll, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2019 · Temple University School of MedicineMaleDrug and device company payments (2025): $2,310
Before you book
This list comes from Medicare's enrollment records, not from reviews. Call the office to confirm the clinician is taking new Medicare patients. With Original Medicare, a clinician who accepts assignment can only charge you the Medicare deductible and coinsurance; one who doesn't may charge up to 15% more than the Medicare-approved amount. If you have a Medicare Advantage plan, check that the clinician is in the plan's network.
The MIPS final score (0–100) comes from Medicare's Merit-based Incentive Payment System for 2024. It combines quality measures, cost, improvement activities and use of certified health records, and it sets a payment adjustment. Clinicians who report as a group share the group's score. It is not a patient rating, and many clinicians have no published score.
Payments from drug and medical device companies come from CMS Open Payments (2025 general payments: meals, travel, consulting and speaking fees, gifts and similar), summed for each clinician. Receiving payments is legal and common and does not mean a clinician did anything wrong.
Other specialists in Needham
- Primary care doctors208
- Nurse practitioners236
- Cardiologists40
- Dermatologists11
- Orthopedic surgeons19
- Neurologists45
- Ophthalmologists18
- Optometrists12
- Podiatrists11
- Urologists11
- Pulmonologists7
- Nephrologists11
- Endocrinologists14
- Rheumatologists4
- ENT doctors15
- Oncologists13
- Psychiatrists14
- Psychologists20
- Therapists and counselors51
- Physical therapists25
- Occupational therapists7
- Speech therapists3
- Audiologists5
- Chiropractors6
- Gynecologists29
- General surgeons13
- Vascular surgeons3
- Allergists5
- Sleep medicine doctors3
- Dietitians8
Other care in Needham
Hospitals · Nursing homes · Dialysis centers · Home health agencies · Hospices
Nearby cities
Enrollment, addresses and scores are as reported to CMS and can change. This is not a list of in-network providers for any Medicare Advantage plan, and it is not medical advice. Source: CMS Provider Data Catalog — Doctors and Clinicians National Downloadable File, Clinician MIPS Performance 2024 and Facility Affiliation Data (released Oct 2, 2026).