OB-GYN UNIVERSITY ASSOCIATES
NPI 1356304034
Obstetrics & Gynecology in Orange, CA

Active since April 11, 2006
101 CITY DRIVE SOUTH, BLDG 56 SUITE 800, ORANGE, CA 92868(714) 456-6431(714) 456-7754 Get Directions Write a Review

NPPES record last updated: August 16, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Ob-gyn University Associates NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

OB-GYN UNIVERSITY ASSOCIATES (NPI 1356304034) is a healthcare organization registered as an obstetrics & gynecology in Orange, California and active in the NPI registry since April 2006. The organization lists Uci Health Provider Relations, Ups Provider Relations, as its authorized official.

NPPES Registry Identity

NPI1356304034
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameREGENTS OF THE UNIVERSITY OF CALIFORNIA
Location Address101 CITY DRIVE SOUTH, BLDG 56 SUITE 800Orange, CA 92868
Mailing AddressPo Box 31001-2455Pasadena, CA 91110-2455
Fax(714) 456-7754
Organization SubpartNo
Authorized OfficialUci Health Provider RelationsUps Provider Relations · (714) 456-2986
Enumeration DateApril 11, 2006
Last NPPES UpdateAugust 16, 2018
✔ NPI 1356304034 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 7

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedObstetrics & Gynecology · GynecologyTaxonomy 207VG0400X
Also ListedObstetrics & Gynecology · ObstetricsTaxonomy 207VX0000X
101 CITY DRIVE SOUTH, Orange, CA 92868

Other Names 1

Doing Business AsOb-gyn University Associates

Other Identifiers 1

OtherGR0019470CA · Medi-cal

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ob-gyn University Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

148

Medicare enrollment records show 148 clinicians reassign Medicare billing to Ob-Gyn University Associates, which bills Medicare for the services they deliver. Of these, 92 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 7

Obstetrics/Gynecology123
Nurse Practitioner13
Gynecological Oncology8
Clinical Social Worker1
Maternal Fetal Medicine1
Urogynecology1
Urology1

Nearest to this location (20)

See all 148
Obstetrics/Gynecology
NPI 1467081711
101 THE CITY DR S
Orange, CA 92868
(608) 417-7358
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1154947240
101 THE CITY DR S
Orange, CA 92868
(800) 465-3203
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1992236673
101 THE CITY DR S
Orange, CA 92868
(714) 880-7812
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1427016039
101 THE CITY DRIVE SOUTH
Orange, CA 92868
(410) 955-6700
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1821304882
101 THE CITY DR S
Orange, CA 92868
(714) 456-2911
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1679008650
101 THE CITY DR S
Orange, CA 92868
(714) 456-8224
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1366073702
101 THE CITY DR S
Orange, CA 92868
(714) 456-2986
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1255346763
101 THE CITY DR S BUILDING 29, SUITE 501
Orange, CA 92868
(714) 456-8000
✔ PECOSSame address
Gynecological Oncology
NPI 1629481908
101 THE CITY DR S
Orange, CA 92868
(714) 456-8224
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1154880235
101 THE CITY DR S
Orange, CA 92868
(714) 456-2911
✔ PECOSSame address
Obstetrics/Gynecology
NPI 1508398702
101 THE CITY DR S
Orange, CA 92868
(714) 880-7812
✔ PECOSSame address
Obstetrics/Gynecology
NPI 1235313867
101 THE CITY DR S
Orange, CA 92868
(714) 456-5967
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1891267399
101 THE CITY DR S
Orange, CA 92868
(714) 980-1278
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1962582098
101 THE CITY DR S
Orange, CA 92868
(714) 456-2911
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1194254896
101 THE CITY DR S
Orange, CA 92868
(714) 880-2911
✔ PECOSSame address
Obstetrics/Gynecology
NPI 1619283777
101 THE CITY DR S
Orange, CA 92868
(714) 456-6431
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1467956672
101 THE CITY DR S
Orange, CA 92868
(714) 456-2911
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1578288023
101 THE CITY DR S
Orange, CA 92868
(714) 456-7890
✔ PECOS✔ Accepts MedicareSame address
Urology
NPI 1790896157
101 THE CITY DR S
Orange, CA 92868
(714) 456-2911
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1164089363
101 THE CITY DR S
Orange, CA 92868
(714) 456-7890
✔ PECOSSame address
See all 148 clinicians

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 1356304034. It was assigned to this organization in the NPPES registry on April 11, 2006. The provider is doing business as Ob-Gyn University Associates.

Where is Regents Of The University Of California located?

Regents Of The University Of California is located at 101 City Drive South Bldg 56 Suite 800, Orange, CA 92868. The listed phone number is (714) 456-6431.

What is Regents Of The University Of California's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

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), 148 clinicians in 7 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 Obstetrics/Gynecology (123), Nurse Practitioner (13) and Gynecological Oncology (8). Of these, 92 practice 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 August 16, 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.