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

Individual provider Clinical Psychologist · NPI 1750556189

Dr. Martin Leland Holmen, PHD is a Clinical Psychologist in San Luis Obispo, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2008
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

3295 Rockview Pl
San Luis Obispo, CA 93401-6715
Phone: (805) 549-0846
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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 PSY6447 (CA)

Record details

NPI number1750556189
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedApril 27, 2008
Last updated in NPPESApril 27, 2008

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