What is Alek Marantz's NPI number?

Alek Marantz's National Provider Identifier (NPI) is 1356939086, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Alek Marantz's specialty?

Alek Marantz is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).

Where is Alek Marantz located?

Alek Marantz's practice location on file with NPPES is 1120 W La Veta Ave Ste 400, Orange, CA 92868-4243.

What is Alek Marantz's phone number?

The practice phone number listed in the NPPES registry for Alek Marantz is (714) 509-8481.

Is Alek Marantz's NPI active?

Yes — Alek Marantz's NPI (1356939086) is active in the NPPES registry as of the last update on 2026-01-30.

IndividualActive

Alek Marantz

NPI 1356939086 · Psychologist · Orange, CA

Alek Marantz is a Psychologist provider in Orange, CA (NPI 1356939086).

Provider details

NPI number: 1356939086
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

PsychologistPrimary103T00000X
Behavioral Health & Social Service Providers

Profile Score

Established profile(56/100 index)

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

1120 W La Veta Ave Ste 400

Orange, CA 92868-4243

Phone: (714) 509-8481

Street-level locationGet directions

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Mailing address