NEUROSURGICAL ASSOCIATES OF IRVINE
NPI 1659329746
Neurological Surgery in Orange, CA
About Neurosurgical Associates Of Irvine NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NEUROSURGICAL ASSOCIATES OF IRVINE (NPI 1659329746) is a healthcare organization registered as a neurological surgery in Orange, California and active in the NPI registry since May 2006. The organization lists Uci Health Provider Relations, Ups Provider Relations, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 3
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Neurosurgical Associates Of Irvine is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
32Medicare enrollment records show 32 clinicians reassign Medicare billing to Neurosurgical Associates Of Irvine, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 19 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 32Orange, 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 1659329746. It was assigned to this organization in the NPPES registry on May 4, 2006. The provider is doing business as Neurosurgical Associates Of Irvine.
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) 456-8068.
What is Regents Of The University Of California's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
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), 32 clinicians in 5 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 Neurosurgery (23), Neurology (4) and Nurse Practitioner (3). Of these, 1 practice at this address and 19 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Regents Of The University Of California accept?
Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Regents Of The University Of California as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Regents Of The University Of California was last updated on August 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Neurosurgical Associates Of Irvine · NPI 1659329746
Neurological Surgery organization in Orange, California. Organization record, active in the CMS NPPES registry since May 4, 2006.
## Identity
- **NPI:** 1659329746 (Entity type: Organization)
- **Enumerated:** May 4, 2006
- **Primary specialty:** Neurological Surgery · taxonomy 207T00000X
- **Legal business name:** Regents Of The University Of California
- **Organization subpart:** No
- **Authorized official:** Uci Health Provider Relations, UPS PROVIDER RELATIONS
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868
- **Phone:** (714) 456-8068 · **Fax:** (714) 456-3765
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 32 clinicians in 5 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Neurosurgery (23), Neurology (4), Nurse Practitioner (3); 1 practice at this address and 19 within 10 miles; [full list](https://npiprofile.com/npi/1659329746/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 17, 2018
- **Other identifiers:** Other GR0017211 (CA); Other ZZZP3025Z (CA); Other CH6663 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1659329746) · Data from the CMS NPPES public registry.