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).
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- Currently 1.5 of 4 stars
The overall average patient rating of Dr. Ray Williams is Satisfactory.
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Specialties & Research
Dr. Ray Williams, MD is board certified in Internal Medicine.
He has special expertise in 2 Areas, including Asthma and Nasal Allergy Rhinitis.
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Education & Awards
Dr. Williams graduated from University of California at San Francisco.More Education & Awards
Dr. Williams has 16 hospital affiliations:
- St. Francis Medical Center
- Anaheim Memorial Medical Center
Accepted Insurance Plans
Dr. Williams accepts these health insurances in at least one office:
- LA Care Health Plan - 8 plans
- United Healthcare - 16 plans
- Blue Shield of California - 93 plans
- Great-West Healthcare - 4 plans
- Unicare - 12 plans
- Care 1st Health Plan - 4 plans
- Anthem Blue Cross - 19 plans
- Cigna - 7 plans
More Accepted Insurance