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CHARLES SOM NGUYEN DO
NPI 1104367408
Family Medicine in Tacoma, WA

Active since March 20, 2017PECOS Enrolled
1202 M.L.K. JR WAY, SUITE 200, TACOMA, WA 98405(253) 722-1720 Get Directions Write a Review

NPPES record last updated: August 25, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 25, 2022, Jul 12, 2021, Mar 20, 2017 (3 updates tracked since 2017).

About Charles Som Nguyen Do NPPES

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

CHARLES SOM NGUYEN DO (NPI 1104367408) is an individual family medicine provider in Tacoma, Washington, licensed in Washington (OP61171058) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS and maintains a secondary practice location in Seattle.

NPPES Registry Identity

NPI1104367408
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameCHARLES SOM NGUYENCredential: DO
Location Address1202 M.L.K. JR WAY, SUITE 200Tacoma, WA 98405
Mailing Address125 16th Ave ESeattle, WA 98112-5211 · (206) 326-3000 · Fax (206) 326-2785
Phone(253) 722-1720
Sole ProprietorYes
Enumeration DateMarch 20, 2017
Last NPPES UpdateAugust 25, 20223 updates tracked since enumeration
NPPES CertifiedAugust 25, 2022
✔ NPI 1104367408 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in WA · OP61171058
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedGeneral PracticeTaxonomy 208D00000X · License OP61171058 (WA)
1202 M.L.K. JR WAY, Tacoma, WA 98405
Open in Google Maps ↗

Secondary Practice Location 1

Location 1125 16th Ave ESeattle, WA 98112-5211 · Phone (206) 326-3000 · Fax (206) 326-2785

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Charles Som Nguyen Do 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 Reassignment

Medicare enrollment records show Charles Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kaiser Foundation Health Plan Of Washington
18 mi
Multi-Specialty
2715 NACHES AVE SW # GSWA1N02
Renton, WA 98057
  • Reassigned Medicare billing, Washington enrollment
  • 2,678 clinicians in this Medicare group
NPI 1124264577 (509) 241-7349

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 98405 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
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
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.

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 Charles Nguyen's NPI number?

The NPI number for Charles Nguyen is 1104367408. It was assigned to this individual provider in the NPPES registry on March 20, 2017.

Where is Charles Nguyen located?

Charles Nguyen practices at 1202 M.L.K. Jr Way Suite 200, Tacoma, WA 98405. The listed phone number is (253) 722-1720.

What is Charles Nguyen's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Charles Nguyen enrolled in Medicare?

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

Which organization bills Medicare for Charles Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Nguyen reassigns Medicare benefits to Kaiser Foundation Health Plan Of Washington (Renton, WA). The 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 Charles 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 Charles Nguyen was last updated on August 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.