COUNTY OF LOS ANGELES -RANCHO LOS AMIGOS
NPI 1528162229
Physician Assistant in Downey, CA
About County Of Los Angeles -rancho Los Amigos NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COUNTY OF LOS ANGELES -RANCHO LOS AMIGOS (NPI 1528162229) is a healthcare organization registered as a physician assistant in Downey, California and active in the NPI registry since September 2006. The organization lists Mindy Aisen, Medical Director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Other Identifiers 3
Group Practice 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)
County Of Los Angeles -rancho Los Amigos is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
1,934Medicare enrollment records show 1,934 clinicians reassign Medicare billing to County Of Los Angeles -Rancho Los Amigos, which bills Medicare for the services they deliver. Of these, 7 practice at this address and 249 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 67
Nearest to this location (20)
See all 1,934Downey, CA 90242
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 County Of Los Angeles Auditor Controller's NPI number?
The NPI number for County Of Los Angeles Auditor Controller is 1528162229. It was assigned to this organization in the NPPES registry on September 12, 2006. The provider is doing business as County Of Los Angeles -Rancho Los Amigos.
Where is County Of Los Angeles Auditor Controller located?
County Of Los Angeles Auditor Controller is located at 7601 Imperial Hwy, Downey, CA 90242. The listed phone number is (562) 803-0124.
What is County Of Los Angeles Auditor Controller's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is County Of Los Angeles Auditor Controller enrolled in Medicare?
Yes. County Of Los Angeles Auditor Controller is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through County Of Los Angeles Auditor Controller?
According to the CMS Revalidation Reassignment List (October 2026 release), 1,934 clinicians in 67 Medicare specialties reassign their Medicare billing to County Of Los Angeles Auditor Controller. 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 Internal Medicine (263), Diagnostic Radiology (203) and Nurse Practitioner (196). Of these, 7 practice at this address and 249 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 County Of Los Angeles Auditor Controller was last updated on April 14, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# County Of Los Angeles -Rancho Los Amigos · NPI 1528162229
Physician Assistant organization in Downey, California. Organization record, active in the CMS NPPES registry since September 12, 2006.
## Identity
- **NPI:** 1528162229 (Entity type: Organization)
- **Enumerated:** September 12, 2006
- **Primary specialty:** Physician Assistant · taxonomy 363A00000X
- **Legal business name:** County Of Los Angeles Auditor Controller
- **Organization subpart:** No
- **Authorized official:** Mindy Aisen, MEDICAL DIRECTOR
## Practice location
- **Address:** 7601 IMPERIAL HWY, Downey, CA 90242-3456
- **Phone:** (562) 803-0124 · **Fax:** (562) 803-5569
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1,934 clinicians in 67 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (263), Diagnostic Radiology (203), Nurse Practitioner (196); 7 practice at this address and 249 within 10 miles; [full list](https://npiprofile.com/npi/1528162229/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 14, 2010
- **Other identifiers:** Medicare PIN WPA12723B (CA); Other M052014 (CA); Medicare PIN WNA017C (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1528162229) · Data from the CMS NPPES public registry.