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

Dr. William Joseph Penrod, DC

Individual provider Chiropractor · NPI 1588787998

Dr. William Joseph Penrod, DC is a Chiropractor in San Mateo, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

190 W 25th Ave #4
San Mateo, CA 94403-2298
Phone: (650) 349-2222
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence DC25917 (CA)

Record details

NPI number1588787998
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedApril 9, 2007
Last updated in NPPESNovember 13, 2012

Other providers in San Mateo