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Ophthalmologists who accept Medicare in Sunnyvale, TX
CMS lists 7 clinicians in this specialty with a practice address in Sunnyvale. Accept Medicare assignment (the Medicare-approved amount as full payment): 7. Offer telehealth: 0.
Typical amounts Medicare approves in ZIP 75182 (2024 Medicare rates, the latest CMS has published): a new-patient visit $131, of which you pay about $33; a follow-up visit $71, of which you pay about $18 — 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.
Sai H. Chavala, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100Graduated 2001 · University of Missouri, Kansas City, School of MedicineMaleDrug and device company payments (2025): $1,621Ralphana L. Ehrhardt, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.7/100Graduated 1985 · University of Texas Medical Branch at GalvestonFemaleDrug and device company payments (2025): $447Mark R. Jaffe, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.7/100Graduated 1991 · University of Missouri, Kansas City, School of MedicineMaleMatthew D. Lippas, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.7/100Graduated 1983 · University of Texas Medical School at HoustonMaleDrug and device company payments (2025): $341Patrick T. Sweeney, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.7/100Graduated 1994 · University of Nebraska College of MedicineMaleDrug and device company payments (2025): $399Vincent Venincasa, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.7/100Graduated 2015 · University of Miami, LM Miller School of MedicineMaleDrug and device company payments (2025): $623Gregory L. Cohen, MD
✓ Accepts Medicare assignmentGraduated 1995 · New York Medical CollegeMaleDrug and device company payments (2025): $572
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 Sunnyvale
- Primary care doctors19
- Nurse practitioners21
- Cardiologists4
- Orthopedic surgeons6
- Gastroenterologists3
- Optometrists3
- Physical therapists5
- Gynecologists4
Other care in Sunnyvale
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).