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Gastroenterologists who accept Medicare in Iowa City, IA
CMS lists 30 clinicians in this specialty with a practice address in Iowa City. Accept Medicare assignment (the Medicare-approved amount as full payment): 27. Offer telehealth: 10.
Typical amounts Medicare approves in ZIP 52242 (2024 Medicare rates, the latest CMS has published): a new-patient visit $122, of which you pay about $31; a follow-up visit $94, of which you pay about $24 — 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.
Dean A. Abramson, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100Graduated 1984 · New York University School of MedicineMaleDrug and device company payments (2025): $14Divya Ashat, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100✓ TelehealthGraduated 2012FemaleDrug and device company payments (2025): $117Munish Ashat
✓ Accepts Medicare assignmentMIPS score (2024): 80/100Graduated 2012MaleDrug and device company payments (2025): $300Caryn M. Berkowitz, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100Graduated 1985 · State University of New York at Stony Brook, School of MedicineFemaleKyle E. Brown, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100Graduated 1986 · Clvlnd Clinic Lerner College of Med of Case Wstn RSV UniversityFemaleDawn R. Ebach, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100Graduated 1998 · Washington University School of MedicineFemaleDavid E. Elliott, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100Graduated 1988 · Wayne State University School of MedicineMaleOther offices in Iowa City: 2Jeffrey H. Goldman, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100✓ TelehealthGraduated 1976 · University of Illinois College of Med (chi/peor/rock/chm-Urb)MaleAlan E. Gunderson, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100✓ TelehealthGraduated 2007 · New York Medical CollegeMaleOther offices in Iowa City: 1Rintaro Hashimoto
✓ Accepts Medicare assignmentMIPS score (2024): 80/100✓ TelehealthGraduated 2018MaleDrug and device company payments (2025): $146Mirac N. Ince, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100Graduated 1993MaleOther offices in Iowa City: 1Serhan Karvar
✓ Accepts Medicare assignmentMIPS score (2024): 80/100✓ TelehealthGraduated 1991MaleDrug and device company payments (2025): $51Masaaki Kurahashi, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100✓ TelehealthGraduated 1998MaleDrug and device company payments (2025): $356Mohamad Mokadem, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100Graduated 2003MaleOther offices in Iowa City: 1Drug and device company payments (2025): $168Steven F. Polyak, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100✓ TelehealthGraduated 1998MaleAntonio J. Sanchez, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100✓ TelehealthGraduated 2000MaleDrug and device company payments (2025): $9,996Sussette G. Szachowicz, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100Graduated 2016FemaleDrug and device company payments (2025): $25Tomohiro Tanaka, MD
✓ Accepts Medicare assignmentMIPS score (2024): 80/100✓ TelehealthGraduated 2005MaleDrug and device company payments (2025): $127Abdullah A. Abbasi
✓ Accepts Medicare assignmentGraduated 2014MaleDrug and device company payments (2025): $2,342Rami G. El Abiad, MD
✓ Accepts Medicare assignmentGraduated 2002MaleOther offices in Iowa City: 1Amer El Sayed, MD
✓ Accepts Medicare assignmentGraduated 1997MaleAvraham D. Levin, MD
✓ Accepts Medicare assignmentGraduated 1999MaleSara Naimimohasses
✓ Accepts Medicare assignmentGraduated 2011FemaleDrug and device company payments (2025): $84Nadia Naz
✓ Accepts Medicare assignmentGraduated 2008FemaleNgozi V. Nwude
✓ Accepts Medicare assignment✓ TelehealthGraduated 2007FemaleEvelyn Simabuguro Chinem
✓ Accepts Medicare assignmentGraduated 2010FemaleMarta Tejedor Bravo, MD
✓ Accepts Medicare assignmentGraduated 2006FemaleDrug and device company payments (2025): $114Zunaira Mahmood
May accept assignmentGraduated 2014FemaleMeltem C. Ugras, MD
May accept assignmentGraduated 1994FemaleToshifumi Yodoshi, MD
May accept assignmentGraduated 2009Male
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 Iowa City
- Primary care doctors133
- Geriatricians3
- Nurse practitioners401
- Cardiologists57
- Dermatologists20
- Orthopedic surgeons58
- Neurologists52
- Ophthalmologists45
- Optometrists21
- Podiatrists9
- Urologists25
- Pulmonologists37
- Nephrologists28
- Endocrinologists20
- Rheumatologists13
- ENT doctors25
- Oncologists47
- Psychiatrists62
- Psychologists34
- Therapists and counselors60
- Physical therapists33
- Speech therapists9
- Audiologists9
- Chiropractors11
- Gynecologists48
- General surgeons36
- Vascular surgeons6
- Pain management doctors3
- Physiatrists17
- Allergists6
- Neurosurgeons18
- Infectious disease doctors31
Other care in Iowa City
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).