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

Dr. Ralph James Lamson, PHD

Individual provider Addiction (Substance Use Disorder) Psychologist · NPI 1285770172

Dr. Ralph James Lamson, PHD is an Addiction (Substance Use Disorder) Psychologist in San Rafael, California. Licensed in California. Registered with an NPI since 2007.

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

820 Las Gallinas Ave
San Rafael, CA 94903-3452
Phone: (415) 444-3531
Fax: (415) 444-3019
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Psychologist (primary) Taxonomy 103TA0400X · Licence PSY12671 (CA)

Record details

NPI number1285770172
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJanuary 29, 2007
Last updated in NPPESJuly 8, 2007

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