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

Dr. Robert Knight Johnston, DC

Individual provider Chiropractor · NPI 1710907886

Dr. Robert Knight Johnston, DC is a Chiropractor in Fullerton, 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

3249 Associated Rd
Fullerton, CA 92835-2301
Phone: (714) 529-0840
Fax: (714) 529-0840
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Specialties & licences

Orthopedic Chiropractor (primary) Taxonomy 111NX0800X · Licence DC14648 (CA)
Chiropractor Taxonomy 111N00000X · Licence DC14648 (CA)

Record details

NPI number1710907886
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedJuly 20, 2006
Last updated in NPPESSeptember 11, 2025
Mailing address3249 Associated Rd, Fullerton, CA 92835-2301

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