Home › Doctors › California › Ontario › Optometrists
Optometrists who accept Medicare in Ontario, CA
CMS lists 16 clinicians in this specialty with a practice address in Ontario. Accept Medicare assignment (the Medicare-approved amount as full payment): 16. Offer telehealth: 0.
Original Medicare doesn't cover routine eye exams for glasses or contact lenses; it covers eye care for medical conditions such as cataracts, glaucoma and diabetic eye disease.
Typical amounts Medicare approves in ZIP 91761 (2024 Medicare rates, the latest CMS has published): a new-patient visit $136, of which you pay about $34; 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.
Is this your organization or practice? Feature it at the top of this page — $49 for 30 days →
Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
Leslie Perez, OD
✓ Accepts Medicare assignmentMIPS score (2024): 71.4/100Graduated 2022FemaleDrug and device company payments (2025): $149Michael D. Allen, OD
✓ Accepts Medicare assignmentGraduated 2002 · Southern College of OptometryMaleKenneth Bracken, OD
✓ Accepts Medicare assignmentGraduated 2010 · Ferris State College - College of OptometryMaleKelly D. Delange, OD
✓ Accepts Medicare assignmentGraduated 1995 · Southern California College of OptometryFemaleSara Drake, OD
✓ Accepts Medicare assignmentGraduated 2022FemaleMichael V. Ferreri, MD
✓ Accepts Medicare assignmentGraduated 1993 · Southern California College of OptometryMaleNancy S. Kwan, OD
✓ Accepts Medicare assignmentGraduated 2000 · Southern California College of OptometryFemaleLy P. Lam, OD
✓ Accepts Medicare assignmentGraduated 2012 · University of California - School of OptometryFemaleKhan G. Lau, OD
✓ Accepts Medicare assignmentGraduated 1990 · University of Missouri St Louis - School of OptometryMaleDrug and device company payments (2025): $954Michael J. Lim, OD
✓ Accepts Medicare assignmentGraduated 2018 · Western University of Health Sciences College of Dental MedMaleCynthia Camille Mund, OD
✓ Accepts Medicare assignmentGraduated 2023 · Southern California College of OptometryFemaleDrug and device company payments (2025): $268Beverly A. Nishitani, OD
✓ Accepts Medicare assignmentGraduated 1993 · Southern California College of OptometryFemaleJohn Rossi, OD
✓ Accepts Medicare assignmentGraduated 1984 · Southern California College of OptometryMaleDrug and device company payments (2025): $376Whitnie Szutu, OD
✓ Accepts Medicare assignmentGraduated 2024FemaleDrug and device company payments (2025): $458Constance C. Twu, OD
✓ Accepts Medicare assignmentGraduated 2002 · Southern California College of OptometryFemaleHarvey Yamamoto, OD
✓ Accepts Medicare assignmentGraduated 1961 · Southern California College of OptometryMale
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 Ontario
- Primary care doctors190
- Nurse practitioners81
- Cardiologists7
- Orthopedic surgeons20
- Neurologists9
- Ophthalmologists21
- Podiatrists19
- Urologists13
- Pulmonologists3
- Nephrologists8
- ENT doctors10
- Oncologists4
- Psychiatrists16
- Psychologists7
- Therapists and counselors50
- Physical therapists20
- Gynecologists15
- General surgeons14
- Vascular surgeons4
- Physiatrists7
- Infectious disease doctors4
Other care in Ontario
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).