Marcus Marquez
NPI 1396343711 · Marriage & Family Therapist · Fontana, CA
Enrolled with Medicare as Practitioner - Marriage and Family Therapist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus Marquez is a Marriage & Family Therapist provider in Fontana, CA (NPI 1396343711).
Provider details
- NPI number
- 1396343711
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
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
5 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
Mailing address
Registry dates
- Enumerated
- 2020-10-16
- Last updated
- 2026-01-14
- Certified
- 2026-01-14
Frequently asked questions
- What is Marcus Marquez's NPI number?
- Marcus Marquez's National Provider Identifier (NPI) is 1396343711, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Marquez's specialty?
- Marcus Marquez is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Marcus Marquez located?
- Marcus Marquez's practice location on file with NPPES is 9961 Sierra Ave, Fontana, CA 92335-6720.
- What is Marcus Marquez's phone number?
- The practice phone number listed in the NPPES registry for Marcus Marquez is (866) 205-3595.
- Does Marcus Marquez accept Medicare?
- Marcus Marquez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus Marquez's NPI active?
- Yes — Marcus Marquez's NPI (1396343711) is active in the NPPES registry as of the last update on 2026-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.