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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Specialties & Research
Dr. John Williams, MD is board certified in Psychiatry.
He has special expertise in 1 Area, including Melanoma.
More Specialties & Research
Education & Awards
Dr. Williams graduated from Texas Tech University , Lubbock.More Education & Awards
Dr. Williams has 5 hospital affiliations:
- Lenox Hill Hospital
- NewYork-Presbyterian / Weill Cornell
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Similar doctors nearby
- Additional Information
- Where does Dr. John A. Williams practice?
Dr. John Williams practices Psychiatry and Urology near Summit, NJ.
See Summit Psychiatrists and Summit Urologists.
- Similar Physician Names
- Dr. Deshawn Williams, Dr. Evan Williams, Dr. Giovanni Williams, Dr. Hank Williams, Dr. Hans Williams, Dr. Ian Williams, Dr. Ivan Williams, Dr. Jack Williams