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DR. PETER THANHTUNG NGUYEN D.O.
NPI 1871933366
Emergency Medicine in Irvine, CA

Active since June 27, 2013PECOS EnrolledAccepts Medicare Assignment
1000 FIVEPOINT, IRVINE, CA 92618(888) 333-4673 Get Directions Write a Review

NPPES record last updated: November 24, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Nov 24, 2025, Sep 18, 2025, Nov 30, 2021 and 1 more (4 updates tracked since 2017).

About Dr. Peter Thanhtung Nguyen D.o. NPPES

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

DR. PETER THANHTUNG NGUYEN D.O. (NPI 1871933366) is an individual emergency medicine provider in Irvine, California, licensed in California (20A14978) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Arizona College Of Osteopathic Medicine Mid Western University (2013).

NPPES Registry Identity

NPI1871933366
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. PETER THANHTUNG NGUYENCredential: D.O.
Location Address1000 FIVEPOINTIrvine, CA 92618-2377
Mailing Address1000 FivepointIrvine, CA 92618-2621 · (847) 342-6842
Phone(888) 333-4673
Sole ProprietorNo
Medical School CMSArizona College Of Osteopathic Medicine Mid Western UniversityGraduated 2013
Enumeration DateJune 27, 2013
Last NPPES UpdateNovember 24, 20254 updates tracked since enumeration
NPPES CertifiedNovember 24, 2025
✔ NPI 1871933366 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in CA · 20A14978✔ Licensed in WA · OP70029432
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1000 FIVEPOINT, Irvine, CA 92618
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11500 Duarte RdDuarte, CA 91010-3012 · Phone (800) 826-4673
Location 22420 S State StTacoma, WA 98405-2845 · Phone (510) 867-2515 · Fax (510) 867-2515

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Peter Thanhtung Nguyen D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3870893795
PECOS Enrollment IDI20170616002298
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92618 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
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
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.

DR. ARNOLD KIM MD
Anesthesiology
1000 FIVEPOINT
IRVINE, CA 92618
Orange County (888) 333-4673
DR. AMY RUTH COPELAND MD
Surgery (Surgical Oncology)
1000 FIVEPOINT, BLDG A
IRVINE, CA 92618
Orange County (949) 671-8000
MRS. AMBER HARDY RICKNER NP
Nurse Practitioner (Acute Care)
1000 FIVEPOINT
IRVINE, CA 92618
Orange County (949) 671-4673
CAROLYN THOMPSON CHUDY DO
Physical Medicine & Rehabilitation (Sports Medicine)
1000 FIVEPOINT
IRVINE, CA 92618
Orange County (800) 826-4673
DR. NGOC N. LE
Radiology (Vascular & Interventional Radiology)
1000 FIVEPOINT
IRVINE, CA 92618
Orange County (800) 826-4673
DR. ANNIE CHEN MD
Internal Medicine (Pulmonary Disease)
1000 FIVEPOINT
IRVINE, CA 92618
Orange County (800) 826-4673
DR. HOSSEIN MEHDIKHANI KARIMABAD M.D.
Radiology (Diagnostic Radiology)
1000 FIVEPOINT
IRVINE, CA 92618
Orange County (847) 342-6842
DR. JUNG WOOK KIM MD
Internal Medicine (Pulmonary Disease)
1000 FIVEPOINT
IRVINE, CA 92618
Orange County (888) 333-4673

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 Peter Nguyen's NPI number?

The NPI number for Peter Nguyen is 1871933366. It was assigned to this individual provider in the NPPES registry on June 27, 2013.

Where is Peter Nguyen located?

Peter Nguyen practices at 1000 Fivepoint, Irvine, CA 92618. The listed phone number is (888) 333-4673.

What is Peter Nguyen's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Peter Nguyen enrolled in Medicare?

Yes. Peter Nguyen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Peter Nguyen was last updated on November 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.