REGENTS OF THE UNIVERSITY OF CALIFORNIA
NPI 1558311811
Pathology - Anatomic Pathology & Clinical Pathology in Orange, CA
About Regents Of The University Of California NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REGENTS OF THE UNIVERSITY OF CALIFORNIA (NPI 1558311811), doing business as Uci Department Of Pathology, is a healthcare organization registered as an anatomic pathology & clinical pathology in Orange, California and active in the NPI registry since May 2006. The organization lists Sylvia Copen, Provider Enrollment Manager, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
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)
Regents Of The University Of California is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
79Medicare enrollment records show 79 clinicians reassign Medicare billing to Regents Of The University Of California, which bills Medicare for the services they deliver. Of these, 14 practice at this address and 46 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 6
Nearest to this location (20)
See all 79Orange, CA 92868
Orange, CA 92868
Orange, CA 92868
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 Regents Of The University Of California's NPI number?
The NPI number for Regents Of The University Of California is 1558311811. It was assigned to this organization in the NPPES registry on May 10, 2006. The provider is doing business as UCI Department of Pathology.
Where is Regents Of The University Of California located?
Regents Of The University Of California is located at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-6411.
What is Regents Of The University Of California's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Regents Of The University Of California enrolled in Medicare?
Yes. Regents Of The University Of California is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Regents Of The University Of California?
According to the CMS Revalidation Reassignment List (October 2026 release), 79 clinicians in 6 Medicare specialties reassign their Medicare billing to Regents Of The University Of California. 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 Pathology (72), Dermatology (2) and Diagnostic Radiology (2). Of these, 14 practice at this address and 46 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 Regents Of The University Of California was last updated on May 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.
# Regents Of The University Of California · NPI 1558311811
Anatomic Pathology & Clinical Pathology organization in Orange, California. Organization record, active in the CMS NPPES registry since May 10, 2006.
## Identity
- **NPI:** 1558311811 (Entity type: Organization)
- **Enumerated:** May 10, 2006
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **Also known as:** UCI Department of Pathology (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Sylvia Copen, PROVIDER ENROLLMENT MANAGER
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868
- **Phone:** (714) 456-6411 · **Fax:** (714) 456-5873
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 79 clinicians in 6 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Pathology (72), Dermatology (2), Diagnostic Radiology (2); 14 practice at this address and 46 within 10 miles; [full list](https://npiprofile.com/npi/1558311811/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 22, 2025
- **Other identifiers:** Other ZZZ55086Z (CA); Medicaid ZZZP3016Z (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1558311811) · Data from the CMS NPPES public registry.