A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
Learn more about Dr. Andrew Williams:
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- Currently 4 of 4 stars
The overall average patient rating of Dr. Andrew Williams is Excellent.
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Specialties & Research
Dr. Andrew Williams, MD is board certified in Ophthalmology.
- He has special expertise in 2 areas:
- Cataract Surgery
Education & Awards
Dr. Williams graduated from Howard University , Washington. He has 1 awards.
Dr. Williams has 20 hospital affiliations:
- Stanford Hospital and Clinics
- John Muir Medical Center, Walnut Creek Campus
Accepted Insurance Plans
Dr. Williams accepts these health insurances in at least one office:
- United Healthcare - 2 plans
- Blue Shield of California - 89 plans
- Unicare - 2 plans
- Anthem Blue Cross - 2 plans
- Cigna - 2 plans
- USA H & W Network - 1 plan
- Aetna - 3 plans
- Humana - 6 plans
Similar doctors nearby
- Additional Information
- Where does Dr. Andrew S. Williams practice?
Dr. Andrew Williams practices Ophthalmology near San Francisco, CA.
Additional practice locations include: San Mateo, CA.
See San Francisco Ophthalmologists.