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

Douglas J Markham, DC

Individual provider Chiropractor · NPI 1861573883

Douglas J Markham, DC is a Chiropractor in Thousand Oaks, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

3415 Campus Dr
Thousand Oaks, CA 91360-8400
Phone: (805) 496-6255
Fax: (805) 496-7288
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence DC19530 (CA)

Record details

NPI number1861573883
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedOctober 17, 2006
Last updated in NPPESMay 7, 2008

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