Sandra Guillen
NPI 1154778538 · Marriage & Family Therapist · Lancaster, CA
Sandra Guillen is a Marriage & Family Therapist provider in Lancaster, CA (NPI 1154778538).
Provider details
- NPI number
- 1154778538
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- IMF92090 (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
10 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
- 2016-05-16
- Last updated
- 2023-01-23
- Certified
- 2023-01-23
Frequently asked questions
- What is Sandra Guillen's NPI number?
- Sandra Guillen's National Provider Identifier (NPI) is 1154778538, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Guillen's specialty?
- Sandra Guillen is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Sandra Guillen located?
- Sandra Guillen's practice location on file with NPPES is 45111 Fern Ave, Lancaster, CA 93534-2301.
- What is Sandra Guillen's phone number?
- The practice phone number listed in the NPPES registry for Sandra Guillen is (661) 949-1206.
- Is Sandra Guillen's NPI active?
- Yes — Sandra Guillen's NPI (1154778538) is active in the NPPES registry as of the last update on 2023-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.