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 Clayton, MD is board certified in Emergency Medicine and Internal Medicine.
Education & Awards
Dr. Clayton graduated from Boston University .
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- Additional Information
- Dr. John Preston Clayton MD is a male Emergency Medicine Specialist, has 27 years of experience and practices in Internal Medicine and Emergency Medicine.
- Where does Dr. John P. Clayton practice?
- Dr. John Clayton has 1 office location.
Dr. John Clayton practices Internal Medicine and Emergency Medicine near Bethesda, MD.
See Bethesda Internists and Bethesda Emergency Physicians.