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

Mark S. Johnson, DC

Individual provider Chiropractor · NPI 1023024023

Mark S. Johnson, DC is a Chiropractor in Tustin, 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

17251 17th St Ste A
Tustin, CA 92780-1963
Phone: (714) 832-2273
Fax: (714) 832-2272
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 11750 (CA)

Record details

NPI number1023024023
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedJuly 31, 2006
Last updated in NPPESJune 19, 2014

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