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SEUNG CHANG M.D.
NPI 1073603460
Family Medicine in Walnut, CA

Active since October 13, 2006PECOS Enrolled
19687 VALLEY BLVD, WALNUT, CA 91789(909) 598-5228(909) 598-9021 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Seung Chang M.d. NPPES

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

SEUNG CHANG M.D. (NPI 1073603460) is an individual family medicine provider in Walnut, California, licensed in California (A350670) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1073603460
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameSEUNG CHANGCredential: M.D.
Location Address19687 VALLEY BLVDWalnut, CA 91789-2146
Mailing Address19687 Valley BlvdWalnut, CA 91789-2146 · (909) 598-5228 · Fax (909) 598-9021
Phone(909) 598-5228
Fax(909) 598-9021
Sole ProprietorYes
Enumeration DateOctober 13, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1073603460 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A350670
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.
19687 VALLEY BLVD, Walnut, CA 91789
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Seung Chang M.d. 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 Seung Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

American Current Care Of California, A Medical Corporation
13 mi
Urgent Care
40 CENTERPOINTE DR
La Palma, CA 90623
  • Reassigned Medicare billing, California enrollment
  • 304 clinicians in this Medicare group
NPI 1932534609 (714) 522-8020

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 91789 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.

SEUNGKOOK CHANG MD INC
Clinic/Center (Primary Care)
19687 VALLEY BLVD
WALNUT, CA 91789
Los Angeles County (909) 598-5228

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 Seung Chang's NPI number?

The NPI number for Seung Chang is 1073603460. It was assigned to this individual provider in the NPPES registry on October 13, 2006.

Where is Seung Chang located?

Seung Chang practices at 19687 Valley Blvd, Walnut, CA 91789. The listed phone number is (909) 598-5228.

What is Seung Chang's specialty?

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

Is Seung Chang enrolled in Medicare?

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

Which organization bills Medicare for Seung Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Seung Chang reassigns Medicare benefits to American Current Care Of California, A Medical Corporation (La Palma, 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 Seung 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 Seung Chang was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.