1. Home
  2. Directory
  3. California
  4. Garden Grove
  5. Pediatrics
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

NIKKI NHU PHUONG NGUYEN MD
NPI 1386148781
Pediatrics in Garden Grove, CA

Active since March 20, 2018PECOS Enrolled
9191 WESTMINSTER AVE STE 106, GARDEN GROVE, CA 92844(714) 583-6340 Get Directions Write a Review

NPPES record last updated: October 15, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 15, 2026, Mar 20, 2018 (2 updates tracked since 2018).

About Nikki Nhu Phuong Nguyen Md NPPES

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

NIKKI NHU PHUONG NGUYEN MD (NPI 1386148781) is an individual pediatrics provider in Garden Grove, California, licensed in California (A166177) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1386148781
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameNIKKI NHU PHUONG NGUYENCredential: MD
Location Address9191 WESTMINSTER AVE STE 106Garden Grove, CA 92844-2751
Mailing Address12302 Twintree AveGarden Grove, CA 92840-3819
Phone(714) 583-6340
Sole ProprietorNo
Enumeration DateMarch 20, 2018
Last NPPES UpdateOctober 15, 20262 updates tracked since enumeration
NPPES CertifiedOctober 15, 2026
✔ NPI 1386148781 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A166177
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
9191 WESTMINSTER AVE STE 106, Garden Grove, CA 92844
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nikki Nhu Phuong 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92844 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

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

ANH NGUYEN GALLETA CPNP
Nurse Practitioner (Pediatrics)
9191 WESTMINSTER AVE STE 106
GARDEN GROVE, CA 92844
Orange County (714) 583-6340

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 Nikki Nhu Nguyen's NPI number?

The NPI number for Nikki Nhu Nguyen is 1386148781. It was assigned to this individual provider in the NPPES registry on March 20, 2018.

Where is Nikki Nhu Nguyen located?

Nikki Nhu Nguyen practices at 9191 Westminster Ave Ste 106, Garden Grove, CA 92844. The listed phone number is (714) 583-6340.

What is Nikki Nhu Nguyen's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Nikki Nhu Nguyen enrolled in Medicare?

Yes. Nikki Nhu Nguyen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Nikki Nhu Nguyen was last updated on October 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.