IndividualActive
Isabel Guerrero
NPI 1275170003 · Counselor · Fontana, CA
Isabel Guerrero is a Counselor provider in Fontana, CA (NPI 1275170003).
Provider details
- NPI number
- 1275170003
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(59/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs 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
14677 Merrill Avenue
Fontana, CA 92335
Phone: (951) 643-2340
Street-level locationGet directions
Mailing address
11263 Buena Vista Dr
Fontana, CA 92337-7036
Registry dates
- Enumerated
- 2019-11-27
- Last updated
- 2019-11-27
Frequently asked questions
- What is Isabel Guerrero's NPI number?
- Isabel Guerrero's National Provider Identifier (NPI) is 1275170003, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabel Guerrero's specialty?
- Isabel Guerrero is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Isabel Guerrero located?
- Isabel Guerrero's practice location on file with NPPES is 14677 Merrill Avenue, Fontana, CA 92335.
- What is Isabel Guerrero's phone number?
- The practice phone number listed in the NPPES registry for Isabel Guerrero is (951) 643-2340.
- Is Isabel Guerrero's NPI active?
- Yes — Isabel Guerrero's NPI (1275170003) is active in the NPPES registry as of the last update on 2019-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.