Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. John Ellsworth Vankirk, MD

Individual provider Internal Medicine Physician · NPI 1881843068

Dr. John Ellsworth Vankirk, MD is an Internal Medicine Physician in San Mateo, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2008
Specialties on file
2
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

235 Amherst Ave
San Mateo, CA 94402-2201
Phone: (650) 342-1118
Fax: (650) 579-2850
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Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence G24833 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence G24833 (CA)

Record details

NPI number1881843068
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 12, 2008
Last updated in NPPESSeptember 12, 2008

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