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Ophthalmologists who accept Medicare in Fountain Valley, CA
CMS lists 20 clinicians in this specialty with a practice address in Fountain Valley. Accept Medicare assignment (the Medicare-approved amount as full payment): 20. Offer telehealth: 2.
Typical amounts Medicare approves in ZIP 92708 (2024 Medicare rates, the latest CMS has published): a new-patient visit $142, of which you pay about $36; a follow-up visit $78, 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.
Tri M. Nguyen, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100Graduated 2000 · University of California, Geffen School of MedicineMaleOther offices in Fountain Valley: 1Drug and device company payments (2025): $1,254Elizabeth Nguyen, DO
✓ Accepts Medicare assignmentMIPS score (2024): 97.3/100Graduated 2004FemaleDrug and device company payments (2025): $948Michael K. Tran, MD
✓ Accepts Medicare assignmentMIPS score (2024): 97.3/100Graduated 2000 · Harvard Medical SchoolMaleDrug and device company payments (2025): $1,095Ronald N. Gaster, MD
✓ Accepts Medicare assignmentMIPS score (2024): 93.2/100Graduated 1973 · University of California, Geffen School of MedicineMaleDrug and device company payments (2025): $328Samira Khan, MD
✓ Accepts Medicare assignmentMIPS score (2024): 93.2/100Graduated 2007FemaleDrug and device company payments (2025): $142Gina Y. Lee, MD
✓ Accepts Medicare assignmentMIPS score (2024): 93.2/100Graduated 2006FemaleDrug and device company payments (2025): $308Jared R. Younger, MD
✓ Accepts Medicare assignmentMIPS score (2024): 93.2/100Graduated 2003 · University of Arizona College of MedicineMaleDrug and device company payments (2025): $1,600Ali Mahdavi Fard, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88.9/100Graduated 1999MaleDrug and device company payments (2025): $516Benjamin B. Bert, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.3/100✓ TelehealthGraduated 2008 · State University of NY Upstate Medical UniversityMaleDrug and device company payments (2025): $731Mona Fayad, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.3/100Graduated 2019 · Wayne State University School of MedicineFemaleDrug and device company payments (2025): $2,053Brian Francis
✓ Accepts Medicare assignmentMIPS score (2024): 86.3/100Graduated 1992 · Tulane University School of MedicineMaleDrug and device company payments (2025): $18,168Gad Heilweil, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.3/100Graduated 1998MaleDrug and device company payments (2025): $412Justin N. Karlin, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.3/100✓ TelehealthGraduated 2014MaleDrug and device company payments (2025): $2,188Nariman Nassiri, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.3/100Graduated 2005MaleDrug and device company payments (2025): $801Christine V. Nguyen, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.3/100Graduated 2013 · Georgetown University School of MedicineFemaleDrug and device company payments (2025): $829Vivian Qin, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.3/100Graduated 2019FemaleJane W. Chan, MD
✓ Accepts Medicare assignmentGraduated 1990 · Jefferson Medical College of Thomas Jefferson UniversityFemaleDrug and device company payments (2025): $82Vicki Y. Lin, MD
✓ Accepts Medicare assignmentGraduated 1999 · Northwestern University Feinberg Medical SchoolFemaleDrug and device company payments (2025): $1,729Trung M. Nguyen, MD
✓ Accepts Medicare assignmentGraduated 1990 · Yale University School of MedicineMaleDrug and device company payments (2025): $1,990Hyelin You, MD
✓ Accepts Medicare assignmentGraduated 2021 · Loma Linda University School of MedicineFemaleDrug and device company payments (2025): $1,118
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 Fountain Valley
- Primary care doctors109
- Nurse practitioners57
- Cardiologists21
- Dermatologists5
- Orthopedic surgeons27
- Neurologists22
- Gastroenterologists15
- Optometrists14
- Podiatrists5
- Pulmonologists11
- Nephrologists24
- Endocrinologists3
- ENT doctors4
- Oncologists25
- Psychiatrists3
- Psychologists9
- Therapists and counselors9
- Physical therapists39
- Occupational therapists5
- Chiropractors18
- Gynecologists26
- General surgeons19
- Vascular surgeons3
- Pain management doctors4
- Physiatrists5
- Dietitians6
- Neurosurgeons3
- Infectious disease doctors6
Other care in Fountain Valley
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).