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DR. PHU THIEN NGUYEN D.O.
NPI 1386642866
General Practice in Garden Grove, CA

Active since July 08, 2005PECOS EnrolledAccepts Medicare Assignment
12555 GARDEN GROVE BLVD, SUITE 301, GARDEN GROVE, CA 92843(714) 741-0501(714) 741-0095 Get Directions Write a Review

NPPES record last updated: June 18, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Phu Thien Nguyen D.o. NPPES

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

DR. PHU THIEN NGUYEN D.O. (NPI 1386642866) is an individual general practice provider in Garden Grove, California, licensed in California (20A7161) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of College Of Osteo Med Of The Pacific At Pomona (1992).

NPPES Registry Identity

NPI1386642866
Entity TypeIndividualMale
Primary Taxonomy208D00000X
Provider Legal NameDR. PHU THIEN NGUYENCredential: D.O.
Location Address12555 GARDEN GROVE BLVD, SUITE 301Garden Grove, CA 92843-1902
Mailing Address12555 Garden Grove Blvd, Suite 301Garden Grove, CA 92843-1902 · (714) 741-0501 · Fax (714) 741-0095
Phone(714) 741-0501
Fax(714) 741-0095
Sole ProprietorNo
Medical School CMSCollege Of Osteo Med Of The Pacific At PomonaGraduated 1992
Enumeration DateJuly 8, 2005
Last NPPES UpdateJune 18, 2026
NPPES CertifiedJune 18, 2026
✔ NPI 1386642866 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in CA · 20A7161
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
12555 GARDEN GROVE BLVD, Garden Grove, CA 92843
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Other Identifiers 1

Medicaid00AX71610CA

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. Phu Thien 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 ID3476525635
PECOS Enrollment IDI20040810000524
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
194 services71 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
12 services12 patients

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.

ANDREW H AHN MD PROFESSIONAL CORPORATION
Surgery (Vascular Surgery)
12555 GARDEN GROVE BLVD, SUITE 403
GARDEN GROVE, CA 92843
Orange County (714) 530-0303
PUNEET K CHAHAL, M.D. INC
Internal Medicine (Infectious Disease)
12555 GARDEN GROVE BLVD, #405
GARDEN GROVE, CA 92843
Orange County (714) 530-8042
DR. RAMAN CHOPRA MD
Pediatrics
12555 GARDEN GROVE BLVD, SUITE 404
GARDEN GROVE, CA 92843
Orange County (714) 638-0232
DR. WILLIAM G ANNAN MD
Specialist
12555 GARDEN GROVE BLVD, SUITE 302
GARDEN GROVE, CA 92843
Orange County (714) 530-3270
MICHAEL S FINNEY M.D.
Internal Medicine (Infectious Disease)
12555 GARDEN GROVE BLVD, STE 405
GARDEN GROVE, CA 92843
Orange County (714) 530-8042
MS. SAADIA PAREKH PA-C
Physician Assistant
12555 GARDEN GROVE BLVD, #206
GARDEN GROVE, CA 92843
Orange County (714) 537-6595
JANAK R. CHOPRA M.D.INC.
Clinic/Center
12555 GARDEN GROVE BLVD, #404
GARDEN GROVE, CA 92843
Orange County (714) 638-0232
RAI CARE CENTERS OF SOUTHERN CALIFORNIA I, LLC
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
12555 GARDEN GROVE BLVD, SUITE 100
GARDEN GROVE, CA 92843
Orange County (714) 741-7255

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 Phu Nguyen's NPI number?

The NPI number for Phu Nguyen is 1386642866. It was assigned to this individual provider in the NPPES registry on July 8, 2005.

Where is Phu Nguyen located?

Phu Nguyen practices at 12555 Garden Grove Blvd Suite 301, Garden Grove, CA 92843. The listed phone number is (714) 741-0501.

What is Phu Nguyen's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Phu Nguyen enrolled in Medicare?

Yes. Phu 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 Phu Nguyen was last updated on June 18, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.