Brian William Tierney, PHD, LP, RCST, CMT
Psychologist · Saratoga, CA
Brian William Tierney, PHD, LP, RCST, CMT is a psychologist with a practice address in Saratoga, California, and NPI 1093856098, issued on Feb 11, 2007. Check the license (California PSY31502, 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
- Brian William Tierney
- Credential
- PHD, LP, RCST, CMT
- Primary taxonomy
- Psychologist 103T00000X
- License numbers
- PSY31502 CA
46651 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20688 4TH St # 4, Saratoga, CA 95070
- Phone
- (510) 541-8680
- Enumerated
- Feb 11, 2007
- Record last updated
- Mar 15, 2025
- Entity
- Type 1 · individual
8 nearest psychologist records → All 7,304 in California → Look up another NPI →
Verify Brian William Tierney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY31502Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Brian William Tierney among 7,304 psychologist records in California
Brian William Tierney, PHD, LP, RCST, CMT is one of 7,304 psychologist records with a practice address in California. 6% 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 2007, is newer than 18% of them.
- NPI issued2007 · 18% of these records are older, 64% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 14% of these records are
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 psychologist records list a practice address in Saratoga
They are 4 of the 306 NPPES records with a practice address in Saratoga, and 7,304 psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,304 in California → Every provider in Saratoga → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Brenda Hart, PH.D.Saratoga, CA 950701023206067
- Barry Hayes, PHDSaratoga, CA 950701326262080
- Afsaneh Nasserbakht, PH.D.Saratoga, CA 950701861627960
- Marianna Mejia, MFTSoquel, CA 950731629127493
- Deborah Syren-Vitullo, PH.D.Soquel, CA 950731447459219
- Derrick Clark, PHDSanta Cruz, CA 950651568566917
- Sanji Coutts, PHDSanta Cruz, CA 950651245340652
- Offra Gerstein, PH.D.Santa Cruz, CA 950651740510643
Common questions
What is Brian William Tierney, PHD, LP, RCST, CMT's NPI number?
Brian William Tierney, PHD, LP, RCST, CMT's National Provider Identifier (NPI) is 1093856098, issued on Feb 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Brian William Tierney, PHD, LP, RCST, CMT located?
The NPPES record lists a practice address at 20688 4TH St # 4, Saratoga, CA, 95070. Phone: (510) 541-8680. Providers update this record themselves, so call before visiting.
How can I verify Brian William Tierney, PHD, LP, RCST, CMT's license?
NPPES lists California license number PSY31502, 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.