QUEST BEHAVIORAL HEALTH, INC.
NPI 1811610090
Psychiatric Residential Treatment Facility in Lancaster, CA

Active since September 22, 2022
43828 47TH ST W, LANCASTER, CA 93536(818) 398-1661 Get Directions Write a Review

NPPES record last updated: November 12, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Nov 12, 2025, Jun 20, 2025, Nov 3, 2022 and 1 more (4 updates tracked since 2022).

About Quest Behavioral Health, Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

QUEST BEHAVIORAL HEALTH, INC. (NPI 1811610090) is a healthcare organization registered as a psychiatric residential treatment facility in Lancaster, California and active in the NPI registry since September 2022. The organization lists Armen Melikyan, Authorized Official, as its authorized official.

NPPES Registry Identity

NPI1811610090
Entity TypeOrganization
Primary Taxonomy323P00000X
Legal Business NameQUEST BEHAVIORAL HEALTH, INC.
Location Address43828 47TH ST WLancaster, CA 93536-5557
Mailing Address43828 47th St WLancaster, CA 93536-5557
Organization SubpartNo
Authorized OfficialArmen MelikyanAuthorized Official · (818) 398-1661
Enumeration DateSeptember 22, 2022
Last NPPES UpdateNovember 12, 20254 updates tracked since enumeration
NPPES CertifiedNovember 12, 2025
NPI 1811610090 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychiatric Residential Treatment FacilityResidential Treatment Facilities
Taxonomy Code323P00000X
Definition

A residential treatment facility (RTF) is a facility or distinct part of a facility that provides to children and adolescents, a total, twenty-four hour, therapeutically planned group living and learning situation where distinct and individualized psychotherapeutic interventions can take place. Residential treatment is a specific level of care to be differentiated from acute, intermediate, and long-term hospital care, when the least restrictive environment is maintained to allow for normalization of the patient's surroundings. The RTF must be both physically and programmatically distinct if it is a part or subunit of a larger treatment program. An RTF is organized and professionally staffed to provide residential treatment of mental disorders to children and adolescents who have sufficient intellectual potential to respond to active treatment (that is, for whom it can reasonably be assumed that treatment of the mental disorder will result in an improved ability to function outside the RTF) for whom outpatient treatment, partial hospitalization or protected and structured environment is medically or psychologically necessary

43828 47TH ST W, Lancaster, CA 93536

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Quest Behavioral Health, Inc.'s NPI number?

The NPI number for Quest Behavioral Health, Inc. is 1811610090. It was assigned to this organization in the NPPES registry on September 22, 2022.

Where is Quest Behavioral Health, Inc. located?

Quest Behavioral Health, Inc. is located at 43828 47th St W, Lancaster, CA 93536. The listed phone number is (818) 398-1661.

What is Quest Behavioral Health, Inc.'s specialty?

The primary specialty registered for this NPI is Psychiatric Residential Treatment Facility with taxonomy code 323P00000X.

When was this NPI record last updated?

The NPPES record for Quest Behavioral Health, Inc. was last updated on November 12, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.