THE REGENTS OF THE UNIVERSITY OF CALIFORNIA-IRVINE
NPI 1154479723
Hospitalist in Orange, CA
About The Regents Of The University Of California-irvine NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA-IRVINE (NPI 1154479723), doing business as Uc Irvine Hospitalist Program, is a healthcare organization registered as a hospitalist in Orange, California and active in the NPI registry since January 2007. The organization lists Sylvia Copen, Provider Enrollment Manager, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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)
The Regents Of The University Of California-irvine is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
249Medicare enrollment records show 249 clinicians reassign Medicare billing to The Regents Of The University Of California-Irvine, which bills Medicare for the services they deliver. Of these, 63 practice at this address and 166 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 18
Nearest to this location (20)
See all 249Orange, 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 The Regents Of The University Of California-Irvine's NPI number?
The NPI number for The Regents Of The University Of California-Irvine is 1154479723. It was assigned to this organization in the NPPES registry on January 8, 2007. The provider is doing business as UC Irvine Hospitalist Program.
Where is The Regents Of The University Of California-Irvine located?
The Regents Of The University Of California-Irvine is located at 101 The City Dr S Bldg 1, Orange, CA 92868. The listed phone number is (714) 456-7002.
What is The Regents Of The University Of California-Irvine's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is The Regents Of The University Of California-Irvine enrolled in Medicare?
Yes. The Regents Of The University Of California-Irvine is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through The Regents Of The University Of California-Irvine?
According to the CMS Revalidation Reassignment List (October 2026 release), 249 clinicians in 18 Medicare specialties reassign their Medicare billing to The Regents Of The University Of California-Irvine. 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 (151), Hospitalist (29) and Nurse Practitioner (25). Of these, 63 practice at this address and 166 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 The Regents Of The University Of California-Irvine 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.
# The Regents Of The University Of California-Irvine · NPI 1154479723
Hospitalist organization in Orange, California. Organization record, active in the CMS NPPES registry since January 8, 2007.
## Identity
- **NPI:** 1154479723 (Entity type: Organization)
- **Enumerated:** January 8, 2007
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **Also known as:** UC Irvine Hospitalist Program (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Sylvia Copen, PROVIDER ENROLLMENT MANAGER
## Practice location
- **Address:** 101 THE CITY DR S BLDG 1, Orange, CA 92868
- **Phone:** (714) 456-7002 · **Fax:** (855) 209-8413
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 249 clinicians in 18 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (151), Hospitalist (29), Nurse Practitioner (25); 63 practice at this address and 166 within 10 miles; [full list](https://npiprofile.com/npi/1154479723/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1154479723) · Data from the CMS NPPES public registry.