John Thomas Sorrell, PHD
Clinical Psychologist · South San Francisco, CA
John Thomas Sorrell, PHD is a clinical psychologist with a practice address in South San Francisco, California, and NPI 1417166695, issued on May 22, 2007. Check the license (California PSY 21440, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Thomas Sorrell
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY 21440 CA
Self-reported in NPPES; status is on the state search - Practice location
- 405 Grand Ave Ste 208B, South San Francisco, CA 94080
- Phone
- (650) 773-4764
- Enumerated
- May 22, 2007
- Record last updated
- May 20, 2025
- Medicare enrollment
- Enrolled (PECOS I20070717000718); accepts Medicare assignment
- Medical or professional school
- West Virginia University School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Verify John Thomas Sorrell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY 21440Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- County OF San MateoSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Thomas Sorrell among 12,647 clinical psychologist records in California
John Thomas Sorrell, PHD is one of 12,647 clinical psychologist records with a practice address in California. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 20% of them.
- NPI issued2007 · 20% of these records are older, 57% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2003 · median 2006 among the 2,424 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in California
There are 12,647 clinical psychologist records in California.
All 12,647 in California → Every provider in South San Francisco → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Ann Bentley, PH.D.South San Francisco, CA 940801962569327
- John Guzman, PHD.South San Francisco, CA 940801992858864
- Belen Mora-Byers, PSYDSouth San Francisco, CA 940801780746040
- Becky Newman, PSY.D.South San Francisco, CA 940801639230352
- Amy Prasad, PSY.D.South San Francisco, CA 940801043387293
- Diane Zacher, PHDSouth San Francisco, CA 940801275689150
- Sonya Bruner, PSY.DSunnyvale, CA 940851598807513
- Mayra Quezada, PSY.D.Sunnyvale, CA 940851174965206
Common questions
What is John Thomas Sorrell, PHD's NPI number?
John Thomas Sorrell, PHD's National Provider Identifier (NPI) is 1417166695, issued on May 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Thomas Sorrell, PHD located?
The NPPES record lists a practice address at 405 Grand Ave Ste 208B, South San Francisco, CA, 94080. Phone: (650) 773-4764. Providers update this record themselves, so call before visiting.
How can I verify John Thomas Sorrell, PHD's license?
NPPES lists California license number PSY 21440, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.