What is William Arroyo's NPI number?

William Arroyo's National Provider Identifier (NPI) is 1285701821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Arroyo's specialty?

William Arroyo is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).

Where is William Arroyo located?

William Arroyo's practice location on file with NPPES is 550 S Vermont Ave, Los Angeles, CA 90020-1912.

What is William Arroyo's phone number?

The practice phone number listed in the NPPES registry for William Arroyo is (213) 738-6152.

Is William Arroyo's NPI active?

Yes — William Arroyo's NPI (1285701821) is active in the NPPES registry as of the last update on 2013-02-25.

IndividualActive

William Arroyo, M.D.

NPI 1285701821 · Psychiatry Physician · Los Angeles, CA

William Arroyo, M.D. is a Psychiatry Physician provider in Los Angeles, CA (NPI 1285701821).

Provider details

NPI number: 1285701821
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: G41407 (CA)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense G41407 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(90/100 index)

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

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% 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

550 S Vermont Ave

Los Angeles, CA 90020-1912

Phone: (213) 738-6152

Fax: (213) 738-4646

Street-level locationGet directions

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Mailing address