What is Oscar Marquez's NPI number?

Oscar Marquez's National Provider Identifier (NPI) is 1477317634, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Oscar Marquez's specialty?

Oscar Marquez is listed in the NPPES registry with a primary specialty of Day Training/Habilitation Specialist (Nursing Service Related Providers).

Where is Oscar Marquez located?

Oscar Marquez's practice location on file with NPPES is 265 S Anita Dr Ste 201, Orange, CA 92868-3346.

What is Oscar Marquez's phone number?

The practice phone number listed in the NPPES registry for Oscar Marquez is (714) 410-3505.

Is Oscar Marquez's NPI active?

Yes — Oscar Marquez's NPI (1477317634) is active in the NPPES registry as of the last update on 2025-07-22.

IndividualActive

Oscar Marquez

NPI 1477317634 · Day Training/Habilitation Specialist · Orange, CA

Oscar Marquez is a Day Training/Habilitation Specialist provider in Orange, CA (NPI 1477317634).

Provider details

NPI number: 1477317634
Entity type: Individual
Primary specialty: Day Training/Habilitation SpecialistNursing Service Related Providers
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Day Training/Habilitation SpecialistPrimary373H00000X
Nursing Service Related Providers

Profile Score

Established profile(50/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
2 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

265 S Anita Dr Ste 201

Orange, CA 92868-3346

Phone: (714) 410-3505

Fax: (714) 410-3527

Street-level locationGet directions

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Mailing address