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

Dr. John Thomas Sorrell, PHD

Individual provider Clinical Psychologist · NPI 1417166695

Dr. John Thomas Sorrell, PHD is a Clinical Psychologist in South San Francisco, California. Graduated from West Virginia University School of Medicine in 2003, 23 years ago. Practices with County of San Mateo, a 316-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
23
Trained at
West Virginia University School of Medicine
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.

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Practice location Address checks out

405 Grand Ave Ste 208B
South San Francisco, CA 94080-3613
Phone: (650) 773-4764
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 222 W 39th Ave, San Mateo, CA 94403-4364 — (650) 573-3564
  • 200 Butcher Rd, Vacaville, CA 95687-5616 — (888) 660-4243

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY 21440 (CA)

Record details

NPI number1417166695
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 22, 2007
Last updated in NPPESMay 20, 2025
Certification dateMay 20, 2025

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolWEST VIRGINIA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice County Of San Mateo — 316 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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