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

Dr. David Olsen, DC

Individual provider Chiropractor · NPI 1447405501

Dr. David Olsen, DC is a Chiropractor in San Mateo, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2008
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

138 S B St #4
San Mateo, CA 94401
Phone: (650) 293-1810
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence DC 30787 (CA)

Record details

NPI number1447405501
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedNovember 17, 2008
Last updated in NPPESNovember 17, 2008
Mailing address138 South B St., 4, San Mateo, CA 94401

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