Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Clayton Chan, MD

Individual provider Internal Medicine Physician · NPI 1972682037

Clayton Chan, MD is an Internal Medicine in Oakland, California. Graduated from New York Medical College in 1997, 29 years ago. Practices with Asian Health Services, a 91-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
29
Trained at
New York Medical College
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

818 Webster St
Oakland, CA 94607-4220
Phone: (510) 986-6830
Fax: (510) 986-6890
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A68139 (CA)

Record details

NPI number1972682037
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 2, 2006
Last updated in NPPESJuly 8, 2007
Mailing address818 Webster St, Oakland, CA 94607-4220

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1997 (29 years in practice)
Group practice Asian Health Services — 91 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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