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Gastroenterologists who accept Medicare in Santa Rosa, CA
CMS lists 22 clinicians in this specialty with a practice address in Santa Rosa. Accept Medicare assignment (the Medicare-approved amount as full payment): 22. Offer telehealth: 17.
Typical amounts Medicare approves in ZIP 95403 (2024 Medicare rates, the latest CMS has published): a new-patient visit $142, of which you pay about $36; a follow-up visit $110, of which you pay about $27 — 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.
Barry Donner, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87/100Graduated 1981MaleDrug and device company payments (2025): $1,290Frank L. Anderson, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1981 · Boston University School of MedicineMaleDrug and device company payments (2025): $29Runalia Bahar, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2013 · University of Pittsburgh School of MedicineFemaleOther offices in Santa Rosa: 2Drug and device company payments (2025): $29Oscar A. Batista, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1993MaleJeffrey M. Baumgardner, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2009 · Icahn School of Medicine at Mount SinaiMaleJoshua P. Beirne, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2003 · University of Texas Southwestern Medical School at DallasMaleOther offices in Santa Rosa: 1Drug and device company payments (2025): $432Timothy Davern, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1990 · Columbia University College of Physicians and SurgeonsMaleOther offices in Santa Rosa: 2Stephen J. Denigris, MD
✓ Accepts Medicare assignmentGraduated 1988 · Georgetown University School of MedicineMaleZhen-Zhou Feng, MD
✓ Accepts Medicare assignmentGraduated 2000 · University of Miami, LM Miller School of MedicineMaleOther offices in Santa Rosa: 2Robert G. Gish, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1980 · University of Kansas School of Med (kc/wich/sal)MaleDrug and device company payments (2025): $353,789Brian L. Hanson, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1992 · Loma Linda University School of MedicineMaleDrug and device company payments (2025): $259Aruna Jayaraman, MD
✓ Accepts Medicare assignmentGraduated 1999 · Jefferson Medical College of Thomas Jefferson UniversityFemalePaul T. Kefalides, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1995 · Perelman School of Med at the University of PennsylvaniaMaleSara Keihanian, MD
✓ Accepts Medicare assignmentGraduated 2002FemaleOther offices in Santa Rosa: 2Sumit Kohli, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2003MaleDrug and device company payments (2025): $1,784Abhinav Koul, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2012 · University of Kentucky College of MedicineMaleDrug and device company payments (2025): $1,086Frances H. Lu, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2002 · Jefferson Medical College of Thomas Jefferson UniversityFemaleDrug and device company payments (2025): $802Alexander M. Lustberg, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1996MaleDrug and device company payments (2025): $5,135Zoe Memel, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2019FemaleDrug and device company payments (2025): $306Shannon M. Schroeder, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2019 · Wake Forest University School of MedicineFemaleDrug and device company payments (2025): $170Fathima Suhail, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2018FemaleOther offices in Santa Rosa: 2Drug and device company payments (2025): $113Madhavi Vetsa, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2002Female
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 Santa Rosa
- Primary care doctors311
- Geriatricians3
- Nurse practitioners161
- Cardiologists34
- Dermatologists28
- Orthopedic surgeons33
- Neurologists28
- Ophthalmologists32
- Optometrists23
- Podiatrists20
- Urologists15
- Pulmonologists8
- Nephrologists10
- Endocrinologists9
- Rheumatologists6
- ENT doctors8
- Oncologists16
- Psychiatrists75
- Psychologists67
- Therapists and counselors131
- Physical therapists74
- Occupational therapists13
- Speech therapists3
- Chiropractors30
- Gynecologists44
- General surgeons37
- Vascular surgeons10
- Pain management doctors8
- Physiatrists16
- Allergists5
- Dietitians5
- Neurosurgeons6
- Infectious disease doctors7
Other care in Santa Rosa
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).