Alejandro Guerrero, M.S.
NPI 1063915379 · Marriage & Family Therapist · Fairfield, CA
Alejandro Guerrero, M.S. is a Marriage & Family Therapist provider in Fairfield, CA (NPI 1063915379).
Provider details
- NPI number
- 1063915379
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.S.
- Sex
- Male
- Sole proprietor
- No
- License
- 133845 (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
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 8945 Golf Links RdOakland, CA 94605-4124Phone: (510) 317-1444
Registry dates
- Enumerated
- 2018-03-13
- Last updated
- 2025-03-27
- Certified
- 2025-03-27
Frequently asked questions
- What is Alejandro Guerrero's NPI number?
- Alejandro Guerrero's National Provider Identifier (NPI) is 1063915379, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alejandro Guerrero's specialty?
- Alejandro Guerrero is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Alejandro Guerrero located?
- Alejandro Guerrero's practice location on file with NPPES is 480 Chadbourne Rd, Fairfield, CA 94534-9639.
- What is Alejandro Guerrero's phone number?
- The practice phone number listed in the NPPES registry for Alejandro Guerrero is (510) 317-1444.
- Is Alejandro Guerrero's NPI active?
- Yes — Alejandro Guerrero's NPI (1063915379) is active in the NPPES registry as of the last update on 2025-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.