What is William Arana's NPI number?

William Arana's National Provider Identifier (NPI) is 1811877301, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Arana's specialty?

William Arana is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).

Where is William Arana located?

William Arana's practice location on file with NPPES is 741 Irolo St Apt 101, Los Angeles, CA 90005-2387.

What is William Arana's phone number?

The practice phone number listed in the NPPES registry for William Arana is (213) 908-4898.

Is William Arana's NPI active?

Yes — William Arana's NPI (1811877301) is active in the NPPES registry as of the last update on 2025-09-04.

IndividualActive

William Arana

NPI 1811877301 · Behavior Analyst · Los Angeles, CA

William Arana is a Behavior Analyst provider in Los Angeles, CA (NPI 1811877301).

Provider details

NPI number: 1811877301
Entity type: Individual
Primary specialty: Behavior AnalystBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Behavior AnalystPrimary103K00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(47/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

741 Irolo St Apt 101

Los Angeles, CA 90005-2387

Phone: (213) 908-4898

Street-level locationGet directions

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Mailing address