ASSISTED OUTPATIENT TREATMENT LA
NPI 1538547005
Clinic/Center - Mental Health (Including Community Mental Health Center) in Lomita, CA
About Assisted Outpatient Treatment La NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ASSISTED OUTPATIENT TREATMENT LA (NPI 1538547005) is a healthcare organization registered as a mental health (including community mental health center) in Lomita, California and active in the NPI registry since May 2015. The organization lists Lisa H. Wong, Acting Director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Assisted Outpatient Treatment La is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
529Medicare enrollment records show 529 clinicians reassign Medicare billing to Assisted Outpatient Treatment La, which bills Medicare for the services they deliver. Of these, 150 practice within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 5
Nearest to this location (20)
See all 529Torrance, CA 90502
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Los Angeles County Department Of Mental Health's NPI number?
The NPI number for Los Angeles County Department Of Mental Health is 1538547005. It was assigned to this organization in the NPPES registry on May 15, 2015. The provider is doing business as Assisted Outpatient Treatment La.
Where is Los Angeles County Department Of Mental Health located?
Los Angeles County Department Of Mental Health is located at 24330 Narbonne Ave Suite 2, Lomita, CA 90717. The listed phone number is (213) 738-2440.
What is Los Angeles County Department Of Mental Health's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.
Is Los Angeles County Department Of Mental Health enrolled in Medicare?
Yes. Los Angeles County Department Of Mental Health is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Los Angeles County Department Of Mental Health?
According to the CMS Revalidation Reassignment List (October 2026 release), 529 clinicians in 5 Medicare specialties reassign their Medicare billing to Los Angeles County Department Of Mental Health. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Clinical Social Worker (260), Psychiatry (177) and Nurse Practitioner (38). Of these, 150 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Los Angeles County Department Of Mental Health was last updated on August 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Assisted Outpatient Treatment La · NPI 1538547005
Mental Health (Including Community Mental Health Center) organization in Lomita, California. Organization record, active in the CMS NPPES registry since May 15, 2015.
## Identity
- **NPI:** 1538547005 (Entity type: Organization)
- **Enumerated:** May 15, 2015
- **Primary specialty:** Clinic/Center - Mental Health (Including Community Mental Health Center) · taxonomy 261QM0801X
- **Legal business name:** Los Angeles County Department Of Mental Health
- **Organization subpart:** Yes (part of Los Angeles County Department Of Mental Health)
- **Authorized official:** Lisa Wong, ACTING DIRECTOR
## Practice location
- **Address:** 24330 NARBONNE AVE, SUITE 2, Lomita, CA 90717-1131
- **Phone:** (213) 738-2440 · **Fax:** (310) 351-2490
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 529 clinicians in 5 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Clinical Social Worker (260), Psychiatry (177), Nurse Practitioner (38); 150 practice within 10 miles; [full list](https://npiprofile.com/npi/1538547005/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 23, 2022
- **Other identifiers:** Medicaid 7926 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1538547005) · Data from the CMS NPPES public registry.