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License & Identifications

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. Clayton Chan:

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Specialties & Research

Dr. Clayton Chan, MD is board certified in Internal Medicine.

Education & Awards

Dr. Chan graduated from New York Medical College, Valhalla.


Dr. Chan has 4 hospital affiliations:

  • Alta Bates Summit Medical Center- Summit Campus 
  • John Muir Medical Center, Walnut Creek Campus 

> > > > Dr. Clayton Chan, MD

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Additional Information
Dr. Clayton Chan MD is a male Internist, has 15 years of experience and practices in Internal Medicine.
Where does Dr. Clayton Chan practice?
Dr. Clayton Chan has 1 office location.
Dr. Clayton Chan practices Internal Medicine near Oakland, CA.
See Oakland Internists.