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

Dr. Milton Warren O'Brien, DC

Individual provider Chiropractor · NPI 1942377551

Dr. Milton Warren O'Brien, DC is a Chiropractor in San Francisco, 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?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

969 Valencia St
San Francisco, CA 94110-2320
Phone: (415) 641-4288
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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 016655 (CA)
Occupational Health Chiropractor Taxonomy 111NX0100X · Licence DCC 016655 (CA)

Record details

NPI number1942377551
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedNovember 29, 2006
Last updated in NPPESJuly 10, 2007

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