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

John A Selling, MD

Individual provider Gastroenterology Physician · NPI 1386608024

John A Selling, MD is a Gastroenterology Physician in Portola Valley, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

340 Willowbrook Dr
Portola Valley, CA 94028-7842
Phone: (650) 743-0932
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G46375 (CA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence G046375 (CA)

Record details

NPI number1386608024
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 12, 2006
Last updated in NPPESJanuary 21, 2020
Certification dateJanuary 21, 2020