Gareth Cesar
NPI 1013736958 · Addiction (Substance Use Disorder) Counselor · Fairfield, CA
Gareth Cesar is a Addiction (Substance Use Disorder) Counselor provider in Fairfield, CA (NPI 1013736958).
Provider details
- NPI number
- 1013736958
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
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
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2024-10-08
- Last updated
- 2024-10-08
- Certified
- 2024-10-08
Frequently asked questions
- What is Gareth Cesar's NPI number?
- Gareth Cesar's National Provider Identifier (NPI) is 1013736958, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gareth Cesar's specialty?
- Gareth Cesar is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Gareth Cesar located?
- Gareth Cesar's practice location on file with NPPES is 623 Great Jones St, Fairfield, CA 94533-6005.
- What is Gareth Cesar's phone number?
- The practice phone number listed in the NPPES registry for Gareth Cesar is (707) 664-7798.
- Is Gareth Cesar's NPI active?
- Yes — Gareth Cesar's NPI (1013736958) is active in the NPPES registry as of the last update on 2024-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.