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JAMES DIEN TU NGUYEN MD
NPI 1174968325
Surgery in Los Angeles, CA

Active since May 01, 2013PECOS Enrolled
1450 SAN PABLO ST STE 6200, LOS ANGELES, CA 90033(323) 442-9062 Get Directions Write a Review

NPPES record last updated: November 27, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 13, 2020, Sep 1, 2020, Aug 9, 2018 (3 updates tracked since 2018).

About James Dien Tu Nguyen Md NPPES

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

JAMES DIEN TU NGUYEN MD (NPI 1174968325) is an individual surgery provider in Los Angeles, California, licensed in California (A154433) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1174968325
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameJAMES DIEN TU NGUYENCredential: MD
Location Address1450 SAN PABLO ST STE 6200Los Angeles, CA 90033-5331
Mailing AddressPo Box 31309Los Angeles, CA 90031-0309 · (323) 442-9062
Phone(323) 442-9062
Sole ProprietorNo
Enumeration DateMay 1, 2013
Last NPPES UpdateNovember 27, 20233 updates tracked since enumeration
NPPES CertifiedSeptember 13, 2020
✔ NPI 1174968325 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · A154433
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
1450 SAN PABLO ST STE 6200, Los Angeles, CA 90033
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

James Dien Tu Nguyen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show James Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Usc Care Medical Group, Inc
0.1 mi
General Practice
1520 SAN PABLO ST
Los Angeles, CA 90033
  • Reassigned Medicare billing, California enrollment
  • 2,445 clinicians in this Medicare group
NPI 1902846306 (323) 442-5955
University Surgeons Of Orange A Medical Group
26 mi
Surgery
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 180 clinicians in this Medicare group
NPI 1407806904 (714) 456-7212

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SARAH KIM PA-C
Physician Assistant
1450 SAN PABLO ST STE 6200
LOS ANGELES, CA 90033
Los Angeles County (323) 442-9062
ELIZABETH CHANG PAC-C
Physician Assistant
1450 SAN PABLO ST STE 6200
LOS ANGELES, CA 90033
Los Angeles County (323) 442-9062
DR. CHRISTINE HSIEH M.D.
Colon & Rectal Surgery
1450 SAN PABLO ST STE 6200
LOS ANGELES, CA 90033
Los Angeles County (323) 865-3690
JIHYUN LEE PA-C
Physician Assistant (Medical)
1450 SAN PABLO ST STE 6200
LOS ANGELES, CA 90033
Los Angeles County (323) 865-3690
AZADEH AZARBAYEJANI CARR M.D.
Surgery (Surgical Oncology)
1450 SAN PABLO ST STE 6200
LOS ANGELES, CA 90033
Los Angeles County (323) 442-9062
DR. KYLE G COLOGNE M.D.
Colon & Rectal Surgery
1450 SAN PABLO ST STE 6200
LOS ANGELES, CA 90033
Los Angeles County (323) 865-3690
DR. SEAN CONOR WIGHTMAN M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
1450 SAN PABLO ST STE 6200
LOS ANGELES, CA 90033
Los Angeles County (323) 442-9062
SCOTT M. ATAY M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
1450 SAN PABLO ST STE 6200
LOS ANGELES, CA 90033
Los Angeles County (323) 442-9062

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 James Nguyen's NPI number?

The NPI number for James Nguyen is 1174968325. It was assigned to this individual provider in the NPPES registry on May 1, 2013.

Where is James Nguyen located?

James Nguyen practices at 1450 San Pablo St Ste 6200, Los Angeles, CA 90033. The listed phone number is (323) 442-9062.

What is James Nguyen's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is James Nguyen enrolled in Medicare?

Yes. James Nguyen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Nguyen reassigns Medicare benefits to 2 organizations: Usc Care Medical Group, Inc (Los Angeles, CA) and University Surgeons Of Orange A Medical Group (Orange, CA). Each 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 James Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for James Nguyen was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.