HIEN NGUYEN MD
NPI 1134562127
Pediatrics in Federal Way, WA

Active since April 10, 2013PECOS Enrolled
33431 13TH PL S, FEDERAL WAY, WA 98003(253) 874-7634(253) 874-7635 Get Directions Write a Review

NPPES record last updated: June 4, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 4, 2026, Apr 6, 2026, Jul 21, 2022 and 1 more (4 updates tracked since 2017).

About Hien Nguyen Md NPPES

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

HIEN NGUYEN MD (NPI 1134562127) is an individual pediatrics provider in Federal Way, Washington, licensed in Washington (MD70101958) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, maintains a secondary practice location in Oakland, and is a graduate of University Of Washington School Of Medicine (2013).

NPPES Registry Identity

NPI1134562127
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameHIEN NGUYENCredential: MD
Location Address33431 13TH PL SFederal Way, WA 98003-6357
Mailing Address955 Powell Ave SwRenton, WA 98057-2908 · (425) 277-1311 · Fax (425) 277-1566
Fax(253) 874-7635
Sole ProprietorNo
Medical School CMSUniversity Of Washington School Of MedicineGraduated 2013
Enumeration DateApril 10, 2013
Last NPPES UpdateJune 4, 20264 updates tracked since enumeration
NPPES CertifiedJune 4, 2026
✔ NPI 1134562127 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in WA · MD70101958✔ Licensed in CA · A135479
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.
33431 13TH PL S, Federal Way, WA 98003

Secondary Practice Location 1

Location 1818 Webster StreetOakland, CA 94607 · Phone (510) 986-6800 · Fax (510) 986-6896

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

PECOS PAC ID8426343153
PECOS Enrollment IDI20260421002565
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 Hien Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Same address
Federally Qualified Health Center (FQHC)
33431 13TH PL S
Federal Way, WA 98003
  • Reassigned Medicare billing, Washington enrollment
  • 403 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
250 E 18TH ST FL 2
Oakland, CA 94606
  • Reassigned Medicare billing, California enrollment
  • 130 clinicians in this Medicare group

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 98003 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
$97.43 typical visit price
range $63.67 – $189.37
Typical copayment $24.35 (range $15.91 – $47.34)
Most-billed visit code 99203
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
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.

Family Medicine
33431 13TH PL S
FEDERAL WAY, WA 98003
Nurse Practitioner
33431 13TH PL S
FEDERAL WAY, WA 98003
Registered Nurse
33431 13TH PL S
FEDERAL WAY, WA 98003
Nurse Practitioner
33431 13TH PL S
FEDERAL WAY, WA 98003
Dentist
33431 13TH PL S
FEDERAL WAY, WA 98003
Family Medicine
33431 13TH PL S
FEDERAL WAY, WA 98003
Family Medicine
33431 13TH PL S
FEDERAL WAY, WA 98003
Nurse Practitioner
33431 13TH PL S
FEDERAL WAY, WA 98003

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 Hien Nguyen's NPI number?

The NPI number for Hien Nguyen is 1134562127. It was assigned to this individual provider in the NPPES registry on April 10, 2013.

Where is Hien Nguyen located?

Hien Nguyen practices at 33431 13th Pl S, Federal Way, WA 98003. The listed phone number is (253) 874-7634.

What is Hien Nguyen's specialty?

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

Is Hien Nguyen enrolled in Medicare?

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

Which organizations bill Medicare for Hien Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hien Nguyen reassigns Medicare benefits to 2 organizations: Healthpoint (Federal Way, WA) and Asian Health Services (Oakland, 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 Hien Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hien Nguyen accept?

Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Hien Nguyen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Hien Nguyen was last updated on June 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.