NPI age
19 years
Enumerated 2007-05-07
● Active
Type 1 · Individual
Matheau Antoine Julien, MD
Julien is 1 of 6 thoracic surgery (cardiothoracic vascular surgery) providers in Round Rock and 1 of 602 in Texas.
Primary specialty
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Plus 3 subspecialties
Licensed in
TX, VA, IL, ND
4 states
Status
Active
No deactivations on record
Last NPPES update
2025-02-10
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 602 active thoracic surgery (cardiothoracic vascular surgery) providers in Texas.
NPI age
19 years
≈ at median (19 yr)
State licenses
4 states
Top 79% — 20% of peers are multi-state
Subspecialties
0
41% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-05Enumerated in NPPES
2007
2026
Where they practice
Practice location
300 University Blvd
Round Rock, TX 786651032
Mailing address
Po Box 844658
Dallas, TX 752844658
Additional practice locations
4 secondary locations on file with NPPES.
Location 2
251 E Huron St, Galter 3-150
Chicago, IL 606112908
Location 3
525 Lilly Rd Ne Ste 200
Olympia, WA 985065101
Location 4
600 Gresham Dr Ste 8600
Norfolk, VA 235071904
Location 5
305 W Jackson St Ste 206
Carbondale, IL 629011474
Specialties
-
Thoracic Surgery (Cardiothoracic Vascular Surgery) PrimaryA thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (IL) | 036139510 | ILLINOIS DEPARTMENT OF FINANCIAL AND PROFESSIONAL REGULATION |
Multi-state credentialing: Licensed in 4 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 194 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.