Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William Doan Nguyen, OD

Individual provider Low Vision Rehabilitation Optometrist · NPI 1689564486

Dr. William Doan Nguyen, OD is registered under Optometry in San Francisco, California. Graduated from State University of New York - State College Optometry in 2025, 1 year ago. Practices with State of New York Comptrollers Office, a 165-clinician group and works from 2 locations. Licensed in California and New York.

Years since qualifying
1
Trained at
State University of New York - State College Optometry
Licensed in
CA, NY
In the registry since
2025
Specialties on file
3
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

490 Illinois St
San Francisco, CA 94158
Phone: (415) 530-6123
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1825 4th St, San Francisco, CA 94143-2350 — (415) 530-6123

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 36323 (CA)
Low Vision Rehabilitation Optometrist Taxonomy 152WL0500X · Licence 011250 (NY)
Optometrist Taxonomy 152W00000X · Licence 011250 (NY)

Record details

NPI number1689564486
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedJuly 4, 2025
Last updated in NPPESJuly 17, 2026
Certification dateJuly 17, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolSTATE UNIVERSITY OF NEW YORK - STATE COLLEGE OPTOMETRY
Graduated 2025 (1 years in practice)
Group practice State Of New York Comptrollers Office — 165 clinicians
Accepts Medicare assignment Not indicated

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $28 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at State of New York Comptrollers Office

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 165 clinicians in the practice; 12 are shown here.

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