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

Colin Holtzinger, PSYD

Individual provider Clinical Psychologist · NPI 1437630803

Colin Holtzinger, PSYD is a Clinical Psychologist in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2018
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

2383 California St Ste 3
San Francisco, CA 94115-2750
Phone: (415) 286-5258
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY34174 (CA)

Record details

NPI number1437630803
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedAugust 23, 2018
Last updated in NPPESJuly 11, 2026
Certification dateJuly 11, 2026

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