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Gastroenterologists who accept Medicare in Portland, ME
CMS lists 36 clinicians in this specialty with a practice address in Portland. Accept Medicare assignment (the Medicare-approved amount as full payment): 36. Offer telehealth: 9.
Typical amounts Medicare approves in ZIP 04102 (2024 Medicare rates, the latest CMS has published): a new-patient visit $129, of which you pay about $32; a follow-up visit $99, of which you pay about $25 — 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.
Miguel R. Arguedas-Brollo, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100✓ TelehealthGraduated 1993MaleDrug and device company payments (2025): $420Noemi Baffy, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 2011FemaleDrug and device company payments (2025): $420Mark T. Branda, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 2002 · University of Vermont College of MedicineMaleEric Elton, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 1990 · Perelman School of Med at the University of PennsylvaniaMaleMatthew D. Grunwald, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 2015MaleDrug and device company payments (2025): $421Kellen G. Hipp, DO
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 2016 · Michigan State University College of Osteopathic MedicineMaleKate F. Kennedy, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 2007 · Tufts University School of MedicineFemaleDrug and device company payments (2025): $301Thalia Mayes, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 2002 · University of Rochester School of Medicine and DentistryFemaleDrug and device company payments (2025): $221Gordon A. Millspaugh, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 1996 · Columbia University College of Physicians and SurgeonsMaleDrug and device company payments (2025): $123James Morse, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 1983 · Tufts University School of MedicineMaleDrug and device company payments (2025): $140Kelly Pizzo, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100✓ TelehealthGraduated 2013 · Tufts University School of MedicineFemaleDrug and device company payments (2025): $278Benjamin B. Potter, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 1992 · Geisel School of Medicine at DartmouthMaleDrug and device company payments (2025): $80Igor Prokopiw, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 1978MaleDaniil Rolshud, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 2004 · Icahn School of Medicine at Mount SinaiMaleDrug and device company payments (2025): $451Cristina C. Rutherford, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 2013 · University of Michigan Medical SchoolFemaleDrug and device company payments (2025): $358Andreas Stefan, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100✓ TelehealthGraduated 1991 · University of Minnesota Medical SchoolMaleDrug and device company payments (2025): $787Calin Stoicov, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100✓ TelehealthGraduated 1999MaleDrug and device company payments (2025): $594John W. Thompson, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 1981 · Kansas City University of Med & Biosciences, College of Osteo MedMaleEric Vecchio, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100✓ TelehealthGraduated 2017MaleDrug and device company payments (2025): $788John T. Walker, DO
✓ Accepts Medicare assignmentMIPS score (2024): 97.9/100Graduated 2013MaleMichael Kelso, MD
✓ Accepts Medicare assignmentMIPS score (2024): 91.3/100Graduated 2011MaleDrug and device company payments (2025): $374Andrew J. Hsu, MD
✓ Accepts Medicare assignmentMIPS score (2024): 81.7/100Graduated 2016 · New York University School of MedicineMaleOther offices in Portland: 1Drug and device company payments (2025): $751Christopher S. Kleeman, MD
✓ Accepts Medicare assignmentMIPS score (2024): 81.7/100Graduated 2002 · Tufts University School of MedicineMaleOther offices in Portland: 1Catherine H. McCrann, MD
✓ Accepts Medicare assignmentMIPS score (2024): 81.7/100Graduated 2003 · Albert Einstein College of Medicine of Yeshiva UniversityFemaleOther offices in Portland: 2Shadab Saboori, MD
✓ Accepts Medicare assignmentMIPS score (2024): 81.7/100Graduated 2018FemaleOther offices in Portland: 2Shishira S. Bharadwaj, MD
✓ Accepts Medicare assignmentGraduated 2005MaleDrug and device company payments (2025): $21Stephen Brand, MD
✓ Accepts Medicare assignmentGraduated 1974MaleFernando H. Calmet, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2007MaleDrug and device company payments (2025): $163Angelo M. Fernandes, MD
✓ Accepts Medicare assignmentGraduated 1999 · Mcgill University, Faculty of MedicineMaleDrug and device company payments (2025): $460Duncan J. Flynn, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2019MaleJoshua A. Goldman, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2002 · University of Connecticut School of MedicineMaleDrug and device company payments (2025): $94Nizar Hallak, MD
✓ Accepts Medicare assignmentGraduated 2005MaleDrug and device company payments (2025): $123Joel Joseph, MD
✓ Accepts Medicare assignmentGraduated 2018 · Medical College of Georgia School of MedicineMaleDrug and device company payments (2025): $372Robert P. McCabe Jr., MD
✓ Accepts Medicare assignmentGraduated 1984 · Ohio State University College of MedicineMaleAdam C. Winters, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2015MaleOther offices in Portland: 2Sara Zelman, MD
✓ Accepts Medicare assignmentGraduated 2019Female
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 Portland
- Primary care doctors451
- Geriatricians10
- Nurse practitioners596
- Cardiologists90
- Dermatologists28
- Orthopedic surgeons52
- Neurologists46
- Ophthalmologists32
- Optometrists19
- Podiatrists14
- Urologists23
- Pulmonologists22
- Nephrologists27
- Endocrinologists16
- Rheumatologists11
- ENT doctors23
- Oncologists38
- Psychiatrists90
- Psychologists42
- Therapists and counselors352
- Physical therapists74
- Occupational therapists15
- Speech therapists5
- Audiologists20
- Chiropractors20
- Gynecologists69
- General surgeons64
- Vascular surgeons13
- Physiatrists25
- Allergists4
- Dietitians19
- Neurosurgeons14
- Infectious disease doctors15
Other care in Portland
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).