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

Dr. John Guilford, DC

Individual provider Chiropractor · NPI 1851302509

Dr. John Guilford, DC is a Chiropractor in Castro 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?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

20406 Redwood Rd Ste B
Castro Valley, CA 94546-4317
Phone: (510) 886-7515
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence DC17974 (CA)
Neurology Chiropractor Taxonomy 111NN0400X · Licence DC17974 (CA)

Record details

NPI number1851302509
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedAugust 10, 2006
Last updated in NPPESSeptember 12, 2013
Mailing address20406 Redwood Rd, Ste B, Castro Valley, CA 94546-4317

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