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

Mr. John Walker, FNP

Individual provider Family Nurse Practitioner · NPI 1992126643

Mr. John Walker, FNP is a Family Nurse Practitioner in San Francisco, California. Licensed in California. Registered with an NPI since 2013.

Licensed in
CA
In the registry since
2013
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

Practice location Address checks out

433 Turk St
San Francisco, CA 94102-3329
Phone: (415) 928-7800
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 95000291 (CA)

Record details

NPI number1992126643
Entity typeIndividual (Type 1)
GenderMale
Credentials FNP
Sole proprietorNo
NPI enumeratedDecember 25, 2013
Last updated in NPPESJuly 2, 2014

Other providers in San Francisco