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

Dr. Mark C. Sexton, PHD

Individual provider Clinical Psychologist · NPI 1144436908

Dr. Mark C. Sexton, PHD is a Clinical Psychologist in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

2409 Sacramento St
San Francisco, CA 94115-2225
Phone: (415) 675-9970
Fax: (415) 490-2711
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY14939 (CA)

Record details

NPI number1144436908
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 15, 2007
Last updated in NPPESJuly 8, 2007

Other providers in San Francisco