Marissa Guerrero
NPI 1922448190 · Marriage & Family Therapist · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Marriage and Family Therapist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Guerrero is a Marriage & Family Therapist provider in Fountain Valley, CA (NPI 1922448190).
Provider details
- NPI number
- 1922448190
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 83676 (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
12 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)
- 19322 Jesse Ln Ste 200Riverside, CA 92508-5072Phone: (951) 387-4040Fax: (951) 398-3144
Registry dates
- Enumerated
- 2013-07-02
- Last updated
- 2020-12-14
- Certified
- 2020-12-14
Frequently asked questions
- What is Marissa Guerrero's NPI number?
- Marissa Guerrero's National Provider Identifier (NPI) is 1922448190, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Guerrero's specialty?
- Marissa Guerrero is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Marissa Guerrero located?
- Marissa Guerrero's practice location on file with NPPES is 18350 Mount Langley St Ste 200, Fountain Valley, CA 92708-6912.
- What is Marissa Guerrero's phone number?
- The practice phone number listed in the NPPES registry for Marissa Guerrero is (714) 450-4118.
- Does Marissa Guerrero accept Medicare?
- Marissa Guerrero is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Guerrero's NPI active?
- Yes — Marissa Guerrero's NPI (1922448190) is active in the NPPES registry as of the last update on 2020-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.