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General surgeons who accept Medicare in Fontana, CA
CMS lists 31 clinicians in this specialty with a practice address in Fontana. Accept Medicare assignment (the Medicare-approved amount as full payment): 31. Offer telehealth: 0.
Typical amounts Medicare approves in ZIP 92335 (2024 Medicare rates, the latest CMS has published): a new-patient visit $92, of which you pay about $23; a follow-up visit $74, of which you pay about $19 — 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.
Brian C. Patterson, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.5/100Graduated 2016 · Wright State University Boonshoft School of MedicineMaleDrug and device company payments (2025): $329Iden D. Andacheh, MD
✓ Accepts Medicare assignmentGraduated 2007 · University of California, Geffen School of MedicineMaleDrug and device company payments (2025): $1,169Nina N. Bowman, DO
✓ Accepts Medicare assignmentGraduated 2006FemaleRobert A. Casillas Jr., MD
✓ Accepts Medicare assignmentGraduated 2001 · University of California, Geffen School of MedicineMaleDrug and device company payments (2025): $3,890Eric T. Chang, MD
✓ Accepts Medicare assignmentGraduated 2010MaleEun J. Chang, MD
✓ Accepts Medicare assignmentGraduated 2004 · University of Utah School of MedicineFemalePhilip L. Chin, MD
✓ Accepts Medicare assignmentGraduated 1989 · Northwestern University Feinberg Medical SchoolMaleDrug and device company payments (2025): $445Raymond L. Chou, MD
✓ Accepts Medicare assignmentGraduated 2017 · Medical College of WisconsinMaleLori Chow
✓ Accepts Medicare assignmentGraduated 1994 · University of California, Davis School of MedicineFemaleClifford C. Eke, MD
✓ Accepts Medicare assignmentGraduated 1992 · Loma Linda University School of MedicineMalePayam Falatoonzadeh, MD
✓ Accepts Medicare assignmentGraduated 2017 · Drexel University College of MedicineMalePeter N. Fedorka, MD
✓ Accepts Medicare assignmentGraduated 2001 · University of California, Geffen School of MedicineMaleDrug and device company payments (2025): $157Stephanie C. Hanna, MD
✓ Accepts Medicare assignmentGraduated 2008 · University of California, San Diego School of MedicineFemaleJoyce M. Ho, MD
✓ Accepts Medicare assignmentGraduated 2003 · University of California, San Diego School of MedicineFemaleTaylor Ho, MD
✓ Accepts Medicare assignmentGraduated 1994 · University of California, Irvine, California College of MedicineMaleDrug and device company payments (2025): $113Nhan T. Huynh, MD
✓ Accepts Medicare assignmentGraduated 2013 · University of California, Irvine, California College of MedicineFemaleTravis R. Israel, DO
✓ Accepts Medicare assignmentGraduated 2016MaleSamir D. Johna, MD
✓ Accepts Medicare assignmentGraduated 1983MaleWega Koss, MD
✓ Accepts Medicare assignmentGraduated 1991FemaleSheryl J. Kwak, MD
✓ Accepts Medicare assignmentGraduated 2008 · University of California, Davis School of MedicineFemaleJoanna C. Lim, MD
✓ Accepts Medicare assignmentGraduated 2010 · Eastern Virginia Medical SchoolFemaleDrug and device company payments (2025): $1,333Peter Lin, MD
✓ Accepts Medicare assignmentGraduated 2005 · Georgetown University School of MedicineMaleDrug and device company payments (2025): $120Carie McVay, MD
✓ Accepts Medicare assignmentGraduated 2000 · University of Nevada School of MedicineFemaleJane Ong, MD
✓ Accepts Medicare assignmentGraduated 1995 · University of California, Geffen School of MedicineFemaleSunal S. Patel, MD
✓ Accepts Medicare assignmentGraduated 2012 · Albany Medical College of Union UniversityMaleBrian J. Sutjiadi, MD
✓ Accepts Medicare assignmentGraduated 2021 · Loma Linda University School of MedicineMaleVartan Tashjian, MD
✓ Accepts Medicare assignmentGraduated 2003 · University of Virginia School of MedicineMaleRene Tellez Jr., MD
✓ Accepts Medicare assignmentGraduated 2016 · Mayo Medical SchoolMaleNoel S. Victor, MD
✓ Accepts Medicare assignmentGraduated 1989MaleJane W. Xu, MD
✓ Accepts Medicare assignmentGraduated 2014 · Loma Linda University School of MedicineFemaleJun F. Yamanishi, MD
✓ Accepts Medicare assignmentGraduated 1985 · Loma Linda University School of MedicineMale
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 Fontana
- Primary care doctors518
- Geriatricians6
- Nurse practitioners121
- Cardiologists12
- Dermatologists12
- Orthopedic surgeons31
- Neurologists17
- Gastroenterologists3
- Ophthalmologists30
- Optometrists56
- Podiatrists27
- Urologists18
- Pulmonologists6
- Nephrologists4
- Endocrinologists3
- ENT doctors24
- Oncologists6
- Psychiatrists44
- Psychologists5
- Therapists and counselors100
- Physical therapists42
- Occupational therapists8
- Audiologists4
- Gynecologists35
- Vascular surgeons7
- Physiatrists21
- Allergists4
- Neurosurgeons7
Other care in Fontana
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).