Thomas Isaacs, PH.D.
NPI 1134369747 · Clinical Psychologist · San Rafael, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Isaacs, PH.D. is a Clinical Psychologist provider in San Rafael, CA (NPI 1134369747).
Provider details
- NPI number
- 1134369747
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY11201 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2009-02-23
- Last updated
- 2009-02-23
Frequently asked questions
- What is Thomas Isaacs's NPI number?
- Thomas Isaacs's National Provider Identifier (NPI) is 1134369747, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Isaacs's specialty?
- Thomas Isaacs is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Thomas Isaacs located?
- Thomas Isaacs's practice location on file with NPPES is 7 Mount Lassen Dr, San Rafael, CA 94903-1148.
- What is Thomas Isaacs's phone number?
- The practice phone number listed in the NPPES registry for Thomas Isaacs is (415) 444-5506.
- Does Thomas Isaacs accept Medicare?
- Thomas Isaacs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Isaacs's NPI active?
- Yes — Thomas Isaacs's NPI (1134369747) is active in the NPPES registry as of the last update on 2009-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.