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 3 of 4 stars
The overall average patient rating of Dr. John Williams is Good.
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Specialties & Research
Dr. John Williams, MD is board certified in Child & Adolescent Psychiatry and Psychiatry.
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- Where does Dr. John P. Williams practice?
Dr. John Williams practices Psychiatry and Child & Adolescent Psychiatry near Bryn Mawr, PA.
See Bryn Mawr Psychiatrists.