Thomas Chang
NPI 1689672743 · Vascular & Interventional Radiology Physician · Washington, DC
Enrolled with Medicare as Practitioner - Interventional Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Chang is a Vascular & Interventional Radiology Physician provider in Washington, DC (NPI 1689672743).
Provider details
- NPI number
- 1689672743
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 31478 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,135 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ultrasonic Guidance for Blood Vessel Access76937 | 391 | $43 |
| Removal of Plaque in Artery of Leg, Initial Vessel37229 | 321 | $9,962 |
| Removal of Plaque in Arteries of Leg37225 | 248 | $5,909 |
| Ultrasound Evaluation of Blood Vessel With Review By Radiologist, Initial Vessel37252 | 31 | $1,079 |
| Ultrasound Evaluation of Blood Vessel With Review By Radiologist, Each Additional Vessel37253 | 31 | $193 |
| Balloon Dilation of Artery of Leg, Each Additional Vessel37232 | 22 | $756 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$750 across 22 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-13
- Last updated
- 2012-03-05
Frequently asked questions
- What is Thomas Chang's NPI number?
- Thomas Chang's National Provider Identifier (NPI) is 1689672743, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Chang's specialty?
- Thomas Chang is listed in the NPPES registry with a primary specialty of Vascular & Interventional Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Chang located?
- Thomas Chang's practice location on file with NPPES is 3800 Reservoir Rd Nw, Washington, DC 20007-2113.
- What is Thomas Chang's phone number?
- The practice phone number listed in the NPPES registry for Thomas Chang is (202) 444-3400.
- Does Thomas Chang accept Medicare?
- Thomas Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Chang's NPI active?
- Yes — Thomas Chang's NPI (1689672743) is active in the NPPES registry as of the last update on 2012-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.