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DONG WOOK CHANG MD
NPI 1376583302
Internal Medicine in Federal Way, WA

Active since June 07, 2006PECOS Enrolled
505 S 336TH STREET, FEDERAL WAY, WA 98003(253) 838-6180(253) 838-6418 Get Directions Write a Review

NPPES record last updated: July 18, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dong Wook Chang Md NPPES

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

DONG WOOK CHANG MD (NPI 1376583302) is an individual internal medicine provider in Federal Way, Washington, licensed in Washington (MD00043595) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1376583302
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDONG WOOK CHANGCredential: MD
Location Address505 S 336TH STREETFederal Way, WA 98003-6328
Mailing Address4101 Whitman Ave N # BSeattle, WA 98103-7821 · (206) 632-3093 · Fax (206) 632-3093
Phone(253) 838-6180
Fax(253) 838-6418
Sole ProprietorYes
Enumeration DateJune 7, 2006
Last NPPES UpdateJuly 18, 2008
✔ NPI 1376583302 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WA · MD00043595
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License MD00043595 (WA)
505 S 336TH STREET, Federal Way, WA 98003
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Other Identifiers 6

Medicare PINP00378902WA
Medicare PING8856561WA
Other0202038WA · Liwa
Medicaid8438459WA
Medicare UPINH85869WA
Other1056CHWA · Bswa

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dong Wook Chang 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.

Medicare Billing Reassignment

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

County Of Los Angeles Auditor Controller
897 mi
Clinic/Center
335 E AVENUE I
Lancaster, CA 93535
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: County Of Los Angeles
  • 1,939 clinicians in this Medicare group
NPI 1366453045 (661) 948-8581

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
$143.76 typical visit price
range $63.67 – $189.37
Typical copayment $35.94 (range $15.91 – $47.34)
Most-billed visit code 99204
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.

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 Dong Chang's NPI number?

The NPI number for Dong Chang is 1376583302. It was assigned to this individual provider in the NPPES registry on June 7, 2006.

Where is Dong Chang located?

Dong Chang practices at 505 S 336th Street, Federal Way, WA 98003. The listed phone number is (253) 838-6180.

What is Dong Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Dong Chang enrolled in Medicare?

Yes. Dong Chang is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Dong Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dong Chang reassigns Medicare benefits to County Of Los Angeles Auditor Controller (Lancaster, CA). 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 Dong Chang'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 Dong Chang was last updated on July 18, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.