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

Dr. John Preston Clayton III, MD

Individual provider Emergency Medicine Physician · NPI 1891759320

Dr. John Preston Clayton III, MD is an Emergency Medicine Physician in San Diego, California. Licensed in California. Registered with an NPI since 2006.

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

3350 La Jolla Village Dr
San Diego, CA 92161-9111
Phone: (858) 642-3197
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence G079616 (CA)

Record details

NPI number1891759320
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 13, 2006
Last updated in NPPESSeptember 30, 2013

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