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. John Williams:
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- Currently 4 of 4 stars
The overall average patient rating of Dr. John Williams is Excellent.
Specialties & Research
Dr. John Williams, MD is board certified in Dermatology.
- He has special expertise in 1 area:
- Acne Rosacea
Education & Awards
Dr. Williams graduated from Drexel University , Philadelphia.
Dr. Williams has 2 hospital affiliations:
- Overlook Hospital
- Overlook Medical Center
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- Additional Information
- Where does Dr. John M. Williams practice?
Dr. John Williams practices Dermatology near Summit, NJ.
See Summit Dermatologists.