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Gastroenterologists who accept Medicare in Oakland, CA
CMS lists 30 clinicians in this specialty with a practice address in Oakland. Accept Medicare assignment (the Medicare-approved amount as full payment): 29. Offer telehealth: 15.
Typical amounts Medicare approves in ZIP 94602 (2024 Medicare rates, the latest CMS has published): a new-patient visit $154, of which you pay about $38; a follow-up visit $119, of which you pay about $30 — 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.
Yu-Ming Chang, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100Graduated 2008MalePaul S. Chard, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100Graduated 1998 · Stanford University School of MedicineMaleOther offices in Oakland: 1Drug and device company payments (2025): $868Christina Chou, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100Graduated 2010 · Clvlnd Clinic Lerner College of Med of Case Wstn RSV UniversityFemaleDrug and device company payments (2025): $541Susie W. Cohn, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100✓ TelehealthGraduated 2008FemaleOther offices in Oakland: 1Drug and device company payments (2025): $3,164Stanley C. Hui, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100Graduated 1987 · University of California, San Francisco School of MedicineMaleDrug and device company payments (2025): $246Jennifer H. Lai, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100Graduated 2010 · New York Medical CollegeFemaleDrug and device company payments (2025): $155Aaron D. Lee, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100Graduated 2011 · University of California, San Diego School of MedicineMaleDrug and device company payments (2025): $915Thomas Y. Myint, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100Graduated 2016 · Albany Medical College of Union UniversityMaleDrug and device company payments (2025): $119Liana Vesga, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100✓ TelehealthGraduated 2000 · Perelman School of Med at the University of PennsylvaniaFemaleOther offices in Oakland: 1Drug and device company payments (2025): $3,069Silvia M. Villagomez, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100✓ TelehealthGraduated 1989 · Harvard Medical SchoolFemaleOther offices in Oakland: 1Drug and device company payments (2025): $1,742Ayesha Zahiruddin, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.2/100Graduated 2009FemaleDrug and device company payments (2025): $487Sanya M. Wadhwa, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.8/100Graduated 2014FemaleOther offices in Oakland: 1Drug and device company payments (2025): $2,368Neil H. Stollman, MD
✓ Accepts Medicare assignmentMIPS score (2024): 83.5/100✓ TelehealthGraduated 1989 · New York University School of MedicineMaleDrug and device company payments (2025): $1,947Ralph Peterson, MD
✓ Accepts Medicare assignmentMIPS score (2024): 24.5/100✓ TelehealthGraduated 1978 · Howard University College of MedicineMaleOther offices in Oakland: 1Drug and device company payments (2025): $11,902Howard Y. Chang, MD
✓ Accepts Medicare assignmentGraduated 1999 · Northwestern University Feinberg Medical SchoolMaleKimberly Cusato, MD
✓ Accepts Medicare assignmentGraduated 1991 · Eastern Virginia Medical SchoolFemaleSaurabh Gupta, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2008MaleOther offices in Oakland: 1Drug and device company payments (2025): $622Benjamin G. Hassid, MD
✓ Accepts Medicare assignmentGraduated 2010 · Columbia University College of Physicians and SurgeonsMaleKevin J. Kane, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2016 · University of California, San Francisco School of MedicineMaleDrug and device company payments (2025): $1,134Lawrence C. Ku, MD
✓ Accepts Medicare assignmentGraduated 2017 · Icahn School of Medicine at Mount SinaiMaleDrug and device company payments (2025): $42Mitchell L. Liverant, MD
✓ Accepts Medicare assignmentGraduated 2011 · Icahn School of Medicine at Mount SinaiMaleSassan Pazirandeh, MD
✓ Accepts Medicare assignmentGraduated 1996 · Hahnemann University College of MedicineMaleKavita Radhakrishnan
✓ Accepts Medicare assignment✓ TelehealthGraduated 2013 · Yale University School of MedicineFemaleAnn C. Robinson, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2016FemaleOther offices in Oakland: 1Drug and device company payments (2025): $938Abhik Roy, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2010 · Jefferson Medical College of Thomas Jefferson UniversityMaleOther offices in Oakland: 1Drug and device company payments (2025): $401Stephanie A. Santos, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2002 · University of North Carolina at Chapel Hill School of MedicineFemaleNihar U. Shah, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2007MaleOther offices in Oakland: 1Drug and device company payments (2025): $32,956Rosa M. Valadao, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2006 · Howard University College of MedicineFemaleStephanie L. Yan, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2016 · Georgetown University School of MedicineFemaleRadhika Kumari, MD
May accept assignmentMIPS score (2024): 95.8/100✓ TelehealthGraduated 2000FemaleDrug and device company payments (2025): $97
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 Oakland
- Primary care doctors555
- Nurse practitioners229
- Cardiologists57
- Dermatologists26
- Orthopedic surgeons60
- Neurologists62
- Ophthalmologists50
- Optometrists45
- Podiatrists34
- Urologists25
- Pulmonologists16
- Nephrologists18
- Endocrinologists9
- Rheumatologists6
- ENT doctors24
- Oncologists15
- Psychiatrists75
- Psychologists67
- Therapists and counselors147
- Physical therapists58
- Occupational therapists13
- Speech therapists5
- Audiologists5
- Chiropractors34
- Gynecologists79
- General surgeons39
- Vascular surgeons11
- Pain management doctors3
- Physiatrists22
- Allergists6
- Dietitians10
- Neurosurgeons8
- Infectious disease doctors17
Other care in Oakland
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).