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

Dr. Thomas Craig Isaacs, PHD

Individual provider Clinical Psychologist · NPI 1134369747

Dr. Thomas Craig Isaacs, PHD is a Clinical Psychologist in San Rafael, California. Qualified in 1985, 41 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
41
Licensed in
CA
In the registry since
2009
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

7 Mount Lassen Dr Ste C-252
San Rafael, CA 94903-1148
Phone: (415) 444-5506
Fax: (415) 444-5506
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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 PSY11201 (CA)

Record details

NPI number1134369747
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedFebruary 23, 2009
Last updated in NPPESFebruary 23, 2009

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1985 (41 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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