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

Individual provider Clinical Psychologist · NPI 1134581986

Dr. Stephen Willis, PHD is a Clinical Psychologist in San Rafael, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2016
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

4460 Redwood Hwy # 16-320
San Rafael, CA 94903-1951
Phone: (415) 990-0997
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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 13111 (CA)

Record details

NPI number1134581986
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 22, 2016
Last updated in NPPESMarch 24, 2016

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