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UNITED PREMIER PHYSICIANS INC
NPI 1831853266
Radiology - Diagnostic Radiology in Monterey Park, CA

Active since October 21, 2021
312 N GARFIELD AVE, MONTEREY PARK, CA 91754(626) 572-2889(626) 572-2989 Get Directions Write a Review

NPPES record last updated: October 28, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About United Premier Physicians Inc NPPES

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

UNITED PREMIER PHYSICIANS INC (NPI 1831853266) is a healthcare organization registered as a diagnostic radiology in Monterey Park, California and active in the NPI registry since October 2021. The organization lists An Pang Chieng, President, as its authorized official.

NPPES Registry Identity

NPI1831853266
Entity TypeOrganization
Primary Taxonomy2085R0202X
Legal Business NameUNITED PREMIER PHYSICIANS INC
Location Address312 N GARFIELD AVEMonterey Park, CA 91754-1707
Mailing Address312 N Garfield AveMonterey Park, CA 91754-1707 · (626) 572-2889 · Fax (626) 572-2989
Phone(626) 572-2889
Fax(626) 572-2989
Organization SubpartNo
Authorized OfficialAn Pang ChiengPresident · (626) 572-2889
Enumeration DateOctober 21, 2021
Last NPPES UpdateOctober 28, 2021
NPPES CertifiedOctober 28, 2021
✔ NPI 1831853266 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
312 N GARFIELD AVE, Monterey Park, CA 91754
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

United Premier Physicians Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

12

Medicare enrollment records show 12 clinicians reassign Medicare billing to United Premier Physicians Inc, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 2

Diagnostic Radiology11
Interventional Radiology1

Clinicians, nearest first (12)

Chieh-Jen Yang, MD.,
Diagnostic Radiology
NPI 1982646022
320 S GARFIELD AVE SUITE #102
Alhambra, CA 91801
(626) 281-4487
✔ PECOS2.7 mi
Peter Wang, MD
Diagnostic Radiology
NPI 1568085470
1720 E CESAR E CHAVEZ AVE
Los Angeles, CA 90033
(323) 268-5000
✔ PECOS✔ Accepts Medicare5.4 mi
Senthil Gunasekaran, MD
Diagnostic Radiology
NPI 1851657076
1812 VERDUGO BLVD
Glendale, CA 91208
(818) 790-7100
✔ PECOS11 mi
Kenny Law, MD
Diagnostic Radiology
NPI 1548767585
101 THE CITY DR S
Orange, CA 92868
(714) 456-7890
✔ PECOS✔ Accepts Medicare23 mi
Andrew Lee, M.D.
Diagnostic Radiology
NPI 1417375486
101 THE CITY DRIVE SOUTH, ROUTE 140
Orange, CA 92868
(714) 456-7273
✔ PECOS✔ Accepts Medicare23 mi
Darice Liu, M.D.
Interventional Radiology
NPI 1336223262
101 THE CITY DR S
Orange, CA 92868
(714) 456-7237
✔ PECOS✔ Accepts Medicare23 mi
Thomas Lee, M.D.
Diagnostic Radiology
NPI 1891722997
5528 E LA PALMA AVE SUITE 4-A
Anaheim, CA 92807
(714) 970-0200
✔ PECOS✔ Accepts Medicare23 mi
Bruce Omiya, M.D.
Diagnostic Radiology
NPI 1336163732
5528 E LA PALMA AVE SUITE 4-A
Anaheim, CA 92807
(714) 970-0200
✔ PECOS✔ Accepts Medicare23 mi
Tan Nguyen, M.D.
Diagnostic Radiology
NPI 1053668608
5528 E LA PALMA AVE STE 4A
Anaheim, CA 92807
(714) 970-0200
✔ PECOS✔ Accepts Medicare23 mi
Jason Pang, M.D.
Diagnostic Radiology
NPI 1447477054
230 S MAIN ST SUITE 100
Orange, CA 92868
(714) 541-0101
✔ PECOS✔ Accepts Medicare24 mi
Michael Chan, M.D.
Diagnostic Radiology
NPI 1285929067
200 W ARBOR DR RADIOLOGY DEPARTMENT
San Diego, CA 92103
(619) 663-8882
✔ PECOS✔ Accepts Medicare106 mi
Kevin Bui, M.D.
Diagnostic Radiology
NPI 1578906186
5555 GROSSMONT CENTER DR
La Mesa, CA 91942
(619) 740-5100
✔ PECOS✔ Accepts Medicare109 mi

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 United Premier Physicians Inc's NPI number?

The NPI number for United Premier Physicians Inc is 1831853266. It was assigned to this organization in the NPPES registry on October 21, 2021.

Where is United Premier Physicians Inc located?

United Premier Physicians Inc is located at 312 N Garfield Ave, Monterey Park, CA 91754. The listed phone number is (626) 572-2889.

What is United Premier Physicians Inc's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is United Premier Physicians Inc enrolled in Medicare?

Yes. United Premier Physicians Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through United Premier Physicians Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 12 clinicians in 2 Medicare specialties reassign their Medicare billing to United Premier Physicians Inc. 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 Diagnostic Radiology (11) and Interventional Radiology (1). Of these, 2 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 United Premier Physicians Inc was last updated on October 28, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.