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Gastroenterologists who accept Medicare in Clackamas, OR
CMS lists 23 clinicians in this specialty with a practice address in Clackamas. Accept Medicare assignment (the Medicare-approved amount as full payment): 23. Offer telehealth: 1.
Typical amounts Medicare approves in ZIP 97015 (2024 Medicare rates, the latest CMS has published): a new-patient visit $134, of which you pay about $34; a follow-up visit $104, of which you pay about $26 — 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.
Ronald J. Hapke, MD
✓ Accepts Medicare assignmentMIPS score (2024): 99.1/100Graduated 1992 · University of Chicago, Pritzker School of MedicineMaleTheodore A. Tollivoro, MD
✓ Accepts Medicare assignmentMIPS score (2024): 90.3/100Graduated 2013 · Saint Louis University School of MedicineMaleDrug and device company payments (2025): $277Kamran Aghaie, MD
✓ Accepts Medicare assignmentGraduated 2004MaleBenjamin J. Bryant, MD
✓ Accepts Medicare assignmentGraduated 2007 · Chicago College of Medicine and SurgeryMaleOther offices in Clackamas: 2Peter R. Caruana, MD
✓ Accepts Medicare assignmentGraduated 2011 · University of Virginia School of MedicineMaleJanice Cho, MD
✓ Accepts Medicare assignmentGraduated 2016 · Mayo Medical SchoolFemaleSharlene D'Souza, MD
✓ Accepts Medicare assignmentGraduated 2005FemaleDrug and device company payments (2025): $24Vikas Garg, MD
✓ Accepts Medicare assignmentGraduated 2002MaleAverill Guo, MD
✓ Accepts Medicare assignmentGraduated 2018 · Columbia University College of Physicians and SurgeonsMaleOther offices in Clackamas: 1Drug and device company payments (2025): $3,607Krishna S. Kasturi, MD
✓ Accepts Medicare assignmentGraduated 2003MaleOther offices in Clackamas: 1Noel M. Lee, MD
✓ Accepts Medicare assignmentGraduated 2005 · University of Virginia School of MedicineFemaleWeitian Liu, MD
✓ Accepts Medicare assignmentGraduated 1989MaleOther offices in Clackamas: 1Chinar S. Mehta, MD
✓ Accepts Medicare assignmentGraduated 2001MaleOther offices in Clackamas: 1Eric M. Nordstrom, MD
✓ Accepts Medicare assignmentGraduated 2010 · Saint Louis University School of MedicineMaleJason J. Powers, MD
✓ Accepts Medicare assignmentGraduated 1995 · George Washington University School of MedicineMaleOther offices in Clackamas: 1John Randles, MD
✓ Accepts Medicare assignmentGraduated 2009 · Oregon Health Sciences University School of MedicineMaleDrug and device company payments (2025): $144Amit Sadana, MD
✓ Accepts Medicare assignmentGraduated 1997 · Albany Medical College of Union UniversityMaleDrug and device company payments (2025): $362Barry L. Schlansky, MD
✓ Accepts Medicare assignmentGraduated 2006 · Jefferson Medical College of Thomas Jefferson UniversityMaleOther offices in Clackamas: 1Caroline R. Tadros, MD
✓ Accepts Medicare assignmentGraduated 2002 · Albert Einstein College of Medicine of Yeshiva UniversityFemaleOther offices in Clackamas: 1Drug and device company payments (2025): $17Nundhini Thukkani, MD
✓ Accepts Medicare assignmentGraduated 2004 · Oregon Health Sciences University School of MedicineFemaleOther offices in Clackamas: 1Jennifer L. Urquhart, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2003 · Wayne State University School of MedicineFemaleOther offices in Clackamas: 1Frank Yeh, MD
✓ Accepts Medicare assignmentGraduated 2003MaleDrug and device company payments (2025): $699Qing Yu, MD
✓ Accepts Medicare assignmentGraduated 1992Male
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 Clackamas
- Primary care doctors374
- Nurse practitioners70
- Cardiologists26
- Dermatologists15
- Orthopedic surgeons24
- Neurologists24
- Ophthalmologists23
- Optometrists37
- Podiatrists13
- Urologists23
- Pulmonologists9
- Nephrologists13
- Endocrinologists3
- Rheumatologists5
- ENT doctors19
- Oncologists6
- Psychiatrists28
- Psychologists5
- Therapists and counselors64
- Physical therapists63
- Occupational therapists16
- Speech therapists3
- Audiologists4
- Chiropractors3
- Gynecologists34
- General surgeons20
- Vascular surgeons8
- Physiatrists5
- Allergists5
- Sleep medicine doctors4
- Dietitians11
- Neurosurgeons8
- Infectious disease doctors9
Other care in Clackamas
Hospitals · Nursing homes · Dialysis centers
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).