Simon Desmarais-Zalob, LCSW
NPI 1013521566 · Social Worker · Fairfield, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Simon Desmarais-Zalob, LCSW is a Social Worker provider in Fairfield, CA (NPI 1013521566).
Provider details
- NPI number
- 1013521566
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 93313 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
5 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
- 2020-09-02
- Last updated
- 2023-04-19
- Certified
- 2023-04-19
Frequently asked questions
- What is Simon Desmarais-Zalob's NPI number?
- Simon Desmarais-Zalob's National Provider Identifier (NPI) is 1013521566, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Simon Desmarais-Zalob's specialty?
- Simon Desmarais-Zalob is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Simon Desmarais-Zalob located?
- Simon Desmarais-Zalob's practice location on file with NPPES is 2460 Clay Bank Rd Bldg 8, Fairfield, CA 94533-1655.
- What is Simon Desmarais-Zalob's phone number?
- The practice phone number listed in the NPPES registry for Simon Desmarais-Zalob is (707) 399-4491.
- Does Simon Desmarais-Zalob accept Medicare?
- Simon Desmarais-Zalob is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Simon Desmarais-Zalob's NPI active?
- Yes — Simon Desmarais-Zalob's NPI (1013521566) is active in the NPPES registry as of the last update on 2023-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.