COUNTY OF ORANGE
NPI 1346387743
Clinic/Center - Adolescent and Children Mental Health in Costa Mesa, CA
About County Of Orange NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COUNTY OF ORANGE (NPI 1346387743), doing business as Cys Costa Mesa Region, is a healthcare organization registered as an adolescent and children mental health in Costa Mesa, California and active in the NPI registry since February 2007. The organization holds a CLIA Waiver certificate valid through June 26, 2027 and lists Chi Y Rajalingam, Chief Compliance Officer, 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)
County Of Orange is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
119Medicare enrollment records show 119 clinicians reassign Medicare billing to County Of Orange, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 85 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 8
Nearest to this location (20)
See all 119Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 05D2284638
County Of Orange Health Care Agency Sud Services · Costa Mesa, CAFrequently 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 Orange's NPI number?
The NPI number for County Of Orange is 1346387743. It was assigned to this organization in the NPPES registry on February 1, 2007. The provider is doing business as CYS Costa Mesa Region.
Where is County Of Orange located?
County Of Orange is located at 2801 Bristol St Ste 100, Costa Mesa, CA 92626. The listed phone number is (714) 850-8408.
What is County Of Orange's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Adolescent and Children Mental Health, with taxonomy code 261QM0855X.
Is County Of Orange enrolled in Medicare?
Yes. County Of Orange is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through County Of Orange?
According to the CMS Revalidation Reassignment List (October 2026 release), 119 clinicians in 8 Medicare specialties reassign their Medicare billing to County Of Orange. 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 (40), Marriage and Family Therapist (36) and Psychiatry (36). Of these, 2 practice at this address and 85 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does County Of Orange hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 05D2284638) is associated with this NPI, valid through June 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for County Of Orange was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 days 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 Orange · NPI 1346387743
Adolescent and Children Mental Health organization in Costa Mesa, California. Organization record, active in the CMS NPPES registry since February 1, 2007.
## Identity
- **NPI:** 1346387743 (Entity type: Organization)
- **Enumerated:** February 1, 2007
- **Primary specialty:** Clinic/Center - Adolescent and Children Mental Health · taxonomy 261QM0855X
- **Also known as:** CYS Costa Mesa Region (Doing Business As)
- **Organization subpart:** Yes (part of County Of Orange)
- **Authorized official:** Chi Rajalingam, CHIEF COMPLIANCE OFFICER
## Practice location
- **Address:** 2801 BRISTOL ST STE 100, Costa Mesa, CA 92626-5996
- **Phone:** (714) 850-8408
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 119 clinicians in 8 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Clinical Social Worker (40), Marriage and Family Therapist (36), Psychiatry (36); 2 practice at this address and 85 within 10 miles; [full list](https://npiprofile.com/npi/1346387743/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 19, 2026
- **Other identifiers:** Medicaid 30C6 (CA)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1346387743) · Data from the CMS NPPES public registry.