DR. STEPHEN WILLIS PH.D.
NPI 1134581986
Psychologist - Clinical in San Rafael, CA

Q: What is Stephen Willis's NPI number?

The NPI number for Stephen Willis is 1134581986. It was assigned to this individual provider in the NPPES registry on March 22, 2016.

Q: What is Stephen Willis's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Willis was last updated on March 24, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 22, 2016

4460 REDWOOD HWY # 16-320, SAN RAFAEL, CA 94903(415) 990-0997 Get Directions Write a Review

NPPES record last updated: March 24, 2016. Verified against the NPPES registry weekly; last sync: August 23, 2026.

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About Dr. Stephen Willis Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. STEPHEN WILLIS PH.D. (NPI 1134581986) is an individual clinical provider in San Rafael, California, licensed in California (13111) and active in the NPI registry since March 2016.

NPPES Registry Identity

NPI1134581986

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. STEPHEN WILLISCredential: PH.D.

Location Address4460 REDWOOD HWY # 16-320San Rafael, CA 94903-1951

Mailing Address4460 Redwood Hwy # 16-320San Rafael, CA 94903-1951 · (415) 990-0997

Phone(415) 990-0997

Sole ProprietorYes

Enumeration DateMarch 22, 2016

Last NPPES UpdateMarch 24, 2016

✔ NPI 1134581986 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · 13111

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

4460 REDWOOD HWY # 16-320, San Rafael, CA 94903

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Willis's NPI number?

The NPI number for Stephen Willis is 1134581986. It was assigned to this individual provider in the NPPES registry on March 22, 2016.

Where is Stephen Willis located?

Stephen Willis practices at 4460 Redwood Hwy # 16-320, San Rafael, CA 94903. The listed phone number is (415) 990-0997.

What is Stephen Willis's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Stephen Willis was last updated on March 24, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.