Robert Riddell
Clinical Psychologist · San Francisco, CA
Robert Riddell is a clinical psychologist with a practice address in San Francisco, California, and NPI 1053864645, issued on Jul 29, 2016. Check the license (California PSY28463, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Robert Riddell
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY28463 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3632 Sacramento St Ste 5, San Francisco, CA 94118
- Phone
- (415) 967-0840
- Enumerated
- Jul 29, 2016
- Record last updated
- May 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170418002832); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Verify Robert Riddell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY28463Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Robert Riddell among 12,647 clinical psychologist records in California
Robert Riddell 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 not. Its NPI, issued in 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 19% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2015 · median 2006 among the 2,424 with a school on file
- Record last updated2019 · 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).
802 clinical psychologist records list a practice address in San Francisco
They are 802 of the 38,143 NPPES records with a practice address in San Francisco, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,647 in California → Every provider in San Francisco → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- John Curtis, PH.D.San Francisco, CA 941181639194673
- Diane Donnelly, PH.D.San Francisco, CA 941181558382945
- Erika Falk, PSY.D.San Francisco, CA 941181669588414
- Moira Fitzpatrick, PHDSan Francisco, CA 941181598858813
- Linda Hornbostel, PHDSan Francisco, CA 941181780691998
- Sachi Inoue, PH.D.San Francisco, CA 941181548349509
- Julius Johnson, PHDSan Francisco, CA 941181487677589
- Allison Mohan, PSYDSan Francisco, CA 941181467494922
Common questions
What is Robert Riddell's NPI number?
Robert Riddell's National Provider Identifier (NPI) is 1053864645, issued on Jul 29, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Robert Riddell located?
The NPPES record lists a practice address at 3632 Sacramento St Ste 5, San Francisco, CA, 94118. Phone: (415) 967-0840. Providers update this record themselves, so call before visiting.
How can I verify Robert Riddell's license?
NPPES lists California license number PSY28463, 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. 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.