Independent US Healthcare Provider Directory & Public Medical Database Patient Guides
Medical Specialty Listing

Optometrists in Sunnyvale, CA

Browse 43 Optometrist providers listed in NPPES with a practice address in Sunnyvale, California.

43 Healthcare Providers

How Sunnyvale compares with the U.S.

Sunnyvale has 28 Optometrists per 100,000 residents, about 1.5 times the U.S. rate of 19.

That is 43 active Optometrists with a practice address in Sunnyvale, for a population of 154,236.

The California rate is 21 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

100% of Optometrists in Sunnyvale listed in the CMS Medicare file (24 of 24) accept Medicare assignment. That is higher than the California share of 89%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

None of the 24 Optometrists in Sunnyvale listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Optometrist Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Optometrist practitioners in Sunnyvale, CA

Source: CMS PECOS
PECOS Enrolled Specialists 31 In Sunnyvale, CA
Part B Lab & Imaging Eligible 31 Diagnostic Referrals
DME Ordering Eligible 32 Durable Medical Equipment
Home Health Agency Referrals 31 HHA Ordering Eligible
Showing 1โ€“20 of 43 providers
With recent CMS data first, then Aโ€“Z

Dr. Geanna Arnone , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
130 S Sunnyvale Ave, Sunnyvale, CA 940866249
Phone: 4087363802
NPI Identifier 1093452377
View Full Profile

Dr. Aileen Chang , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
1085 W El Camino Real, Sunnyvale, CA 940871030
Phone: 4085245900
NPI Identifier 1356781785
View Full Profile

Dr. Suhui Chi , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
1021 S. Wolfe Rd, Suite 145, Sunnyvale, CA 94086
Phone: 4087377007
NPI Identifier 1265645816
View Full Profile

Dr. Michael Fain , OD

Optometrist

Active NPI Status
323-325 North Mathilda Ave, Sunnyvale, CA 94085
Phone: 4085245900
NPI Identifier 1508931601
View Full Profile

Dr. Rita Fong , OD

Optometrist

Active NPI Status
323-325 North Mathilda Ave, Sunnyvale, CA 94085
Phone: 4085245900
NPI Identifier 1912072042
View Full Profile

Dr. Nicholas A Froumis , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
130 S Sunnyvale Ave, Sunnyvale, CA 940866249
Phone: 4087363802
NPI Identifier 1407911282
View Full Profile

Dr. Gary M Gold , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
130 S Sunnyvale Ave, Sunnyvale, CA 940866249
Phone: 4087363802
NPI Identifier 1316996150
View Full Profile
Active NPI Status Accepts Medicare Assignment
1210 E Arques Ave, Suite 210, Sunnyvale, CA 940855421
Phone: 4082452020
NPI Identifier 1720133036
View Full Profile

Dr. Jesley Johnson , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
1010 W Fremont Ave, Sunnyvale, CA 940873000
Phone: 4087396200
NPI Identifier 1265792253
View Full Profile
Active NPI Status Accepts Medicare Assignment
130 S Sunnyvale Ave, Sunnyvale, CA 940866249
Phone: 4087363802
NPI Identifier 1831759505
View Full Profile

Dr. Spencer Alan Lee , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
596 E El Camino Real Ste 2, Sunnyvale, CA 940878129
Phone: 4082456212
NPI Identifier 1902384092
View Full Profile

Dr. Yeun Hwa Sharon Lee , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
1085 W El Camino Real, Sunnyvale, CA 940871030
Phone: 4085245900
NPI Identifier 1780918094
View Full Profile

Dr. Moshe Mendelson , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
1010 W Fremont Ave, Suite #200, Sunnyvale, CA 940873000
Phone: 4087396200
NPI Identifier 1366443277
View Full Profile

Dr. Vivian Thi Nguyen , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
596 E El Camino Real Ste 2, Sunnyvale, CA 940878129
Phone: 4082456212
NPI Identifier 1164999637
View Full Profile

Dr. Shilpi Ratra , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
130 S Sunnyvale Ave, Sunnyvale, CA 940866249
Phone: 4087363802
NPI Identifier 1407121239
View Full Profile

Dr. Trennda Rittenbach , OD

Optometrist

Active NPI Status
323 N Mathilda Ave, Sunnyvale, CA 940854207
Phone: 4085245900
NPI Identifier 1427207497
View Full Profile

Dr. Sangita Shah , OD

Optometrist

Active NPI Status
323-325 North Mathilda Avenue, Sunnyvale, CA 94085
Phone: 4085245900
NPI Identifier 1649346701
View Full Profile

Dr. Vyoma Shinde , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
1010 W Fremont Ave, Sunnyvale, CA 940873000
Phone: 4087396200
NPI Identifier 1659064335
View Full Profile

Dr. Cindy H. Tran , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
596 E El Camino Real # 2, Sunnyvale, CA 940871940
Phone: 4082456212
NPI Identifier 1669495164
View Full Profile

Dr. Kevin Yunjon Wu , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
1010 W Fremont Ave, Sunnyvale, CA 940873000
Phone: 4087396200
NPI Identifier 1396221172
View Full Profile

Frequently Asked Questions about Optometrist in Sunnyvale

How do I check a Optometrist practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.