THOMAS CHUNG CHANG
NPI 1689672743
Radiology - Vascular & Interventional Radiology in Washington, DC
About Thomas Chung Chang NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS CHUNG CHANG (NPI 1689672743) is an individual vascular & interventional radiology provider in Washington, District Of Columbia, licensed in District Of Columbia (31478) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of Johns Hopkins University School Of Medicine (1992).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Thomas Chung Chang is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Thomas Chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 178 clinicians in this Medicare group
Brandywine, MD 20613
- Reassigned Medicare billing, District of Columbia enrollment
- 3 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.
Areas of Expertise CMS Part B claims 12
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20007 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
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 Thomas Chang's NPI number?
The NPI number for Thomas Chang is 1689672743. It was assigned to this individual provider in the NPPES registry on July 13, 2005.
Where is Thomas Chang located?
Thomas Chang practices at 3800 Reservoir Rd NW, Washington, DC 20007. The listed phone number is (202) 444-3400.
What is Thomas Chang's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.
Is Thomas Chang enrolled in Medicare?
Yes. Thomas Chang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Thomas Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Chang reassigns Medicare benefits to 2 organizations: Medstar Medical Group Radiology, LLC (Washington, DC) and Capitol Vascular And Oncology Institute, LLC (Brandywine, MD). 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 Thomas 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 Thomas Chang was last updated on March 5, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Thomas Chung Chang · NPI 1689672743
Vascular & Interventional Radiology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since July 13, 2005.
## Identity
- **NPI:** 1689672743 (Entity type: Individual)
- **Enumerated:** July 13, 2005
- **Primary specialty:** Radiology - Vascular & Interventional Radiology · taxonomy 2085R0204X
- **State license:** 31478 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 3800 RESERVOIR RD NW, Washington, DC 20007-2113
- **Phone:** (202) 444-3400
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Medstar Medical Group Radiology, LLC (NPI 1326450156, Washington, DC); Capitol Vascular And Oncology Institute, LLC (NPI 1659864775, Brandywine, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 1992
## Record status
- **NPPES last updated:** March 5, 2012
- **Other identifiers:** Medicare UPIN H17119; Medicare PIN 005376G65 (DC)
---
Source: [NPI Profile](https://npiprofile.com/npi/1689672743) · Data from the CMS NPPES public registry.