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
Mailing address17251 17th St Ste A, Tustin, CA 92780-1963

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