Brian Tierney, PHD, LP, RCST, CMT
NPI 1093856098 · Psychologist · Saratoga, CA
Brian Tierney, PHD, LP, RCST, CMT is a Psychologist provider in Saratoga, CA (NPI 1093856098).
Provider details
- NPI number
- 1093856098
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD, LP, RCST, CMT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 46651 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-11
- Last updated
- 2025-03-15
- Certified
- 2025-03-15
Frequently asked questions
- What is Brian Tierney's NPI number?
- Brian Tierney's National Provider Identifier (NPI) is 1093856098, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Tierney's specialty?
- Brian Tierney is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Brian Tierney located?
- Brian Tierney's practice location on file with NPPES is 20688 4th St # 4, Saratoga, CA 95070-5894.
- What is Brian Tierney's phone number?
- The practice phone number listed in the NPPES registry for Brian Tierney is (510) 541-8680.
- Is Brian Tierney's NPI active?
- Yes — Brian Tierney's NPI (1093856098) is active in the NPPES registry as of the last update on 2025-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.