Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MATHEAU ANTOINE JULIEN MD
NPI 1619189933
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Round Rock, TX

Active since May 07, 2007PECOS Enrolled
300 UNIVERSITY BLVD, ROUND ROCK, TX 78665(515) 509-0100(512) 218-6330 Get Directions Write a Review

NPPES record last updated: July 15, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 15, 2026, May 19, 2026, Feb 10, 2025 and 10 more (13 updates tracked since 2015).

About Matheau Antoine Julien Md NPPES

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

MATHEAU ANTOINE JULIEN MD (NPI 1619189933) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Round Rock, Texas, licensed in Texas (U9422) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Winchester Medical Center, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1619189933
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameMATHEAU ANTOINE JULIENCredential: MD
Location Address300 UNIVERSITY BLVDRound Rock, TX 78665-1032
Mailing AddressPo Box 844658Dallas, TX 75284-4658 · (254) 724-2111
Fax(512) 218-6330
Sole ProprietorNo
Medical School CMSEmory University School Of MedicineGraduated 2006
Enumeration DateMay 7, 2007
Last NPPES UpdateJuly 15, 202613 updates tracked since enumeration
NPPES CertifiedJuly 15, 2026
NPI 1619189933 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
Licenses Licensed in TX · U9422 Licensed in VA · 0101274262 Licensed in IL · 036139510 Licensed in MI · 4301517340 Licensed in ND · 17695
Definition
A 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, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
300 UNIVERSITY BLVD, Round Rock, TX 78665

Secondary Practice Locations 6

Location 1263 Farmington AveFarmington, CT 06030-8063 · Phone (860) 679-8080 · Fax (860) 679-1430
Location 222060 Beech St Ste 300Dearborn, MI 48124-2847 · Phone (313) 228-0230
Location 3525 Lilly Rd NE Ste 200Olympia, WA 98506-5101 · Phone (360) 493-4510 · Fax (360) 493-7759
Location 4305 W Jackson St Ste 206Carbondale, IL 62901-1474 · Phone (618) 457-3006 · Fax (618) 457-3007
Location 5600 Gresham Dr Ste 8600Norfolk, VA 23507-1904 · Phone (757) 388-6006
Location 6251 E Huron St, Galter 3-150Chicago, IL 60611-2908 · Phone (312) 926-6512

Other Identifiers 1

Other036139510IL · Illinois Department Of Financial And Professional Regulation

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Matheau Antoine Julien Md 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.

PECOS PAC ID6002118254
PECOS Enrollment IDI20160106000390, I20230125002966, I20251202003399, I20260408003602, I20260413002210
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.

Areas of Expertise CMS Part B claims 2

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.

Replacement of aortic valve through the skin and femoral artery 33361
This procedure, known as Transcatheter Aortic Valve Replacement (TAVR), involves replacing a damaged aortic valve through a small incision in the leg. A catheter is inserted into the femoral artery and guided up to the heart. The new valve is then positioned and deployed, restoring normal blood flow.
18 services18 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
17 services17 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Winchester Medical Center

Acute Care Hospitals · Winchester, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490005
Location1840 Amherst StWinchester, VA 22601 · Winchester City County
Emergency services Birthing friendly

Bon Secours Maryview Medical Center

Acute Care Hospitals · Portsmouth, VA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490017
Location3636 High StreetPortsmouth, VA 23707 · Portsmouth City County
Emergency services

Riverside Regional Medical Center

Acute Care Hospitals · Newport News, VA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490052
Location500 J Clyde Morris BlvdNewport News, VA 23601 · Newport News City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78665 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
$166.88 typical visit price
range $54.84 – $166.88
Typical copayment $41.72 (range $13.71 – $41.72)
Most-billed visit code 99205
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
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 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Emergency Medicine
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Nurse Practitioner (Neonatal)
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Anesthesiology
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Radiology (Diagnostic Radiology)
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Nurse Anesthetist, Certified Registered
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Anesthesiologist Assistant
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Emergency Medicine
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Physical Therapist
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665

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 Matheau Julien's NPI number?

The NPI number for Matheau Julien is 1619189933. It was assigned to this individual provider in the NPPES registry on May 7, 2007.

Where is Matheau Julien located?

Matheau Julien practices at 300 University Blvd, Round Rock, TX 78665. The listed phone number is (515) 509-0100.

What is Matheau Julien's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Matheau Julien enrolled in Medicare?

Yes. Matheau Julien 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.

What insurance does Matheau Julien accept?

Health plans from Aspirus Health Plan, Blue Cross Blue Shield of North Dakota, Blue Cross and Blue Shield of Nebraska, CareSource and Medica and 2 other insurers list Matheau Julien as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Matheau Julien affiliated with any hospitals?

According to CMS data, Matheau Julien is affiliated with Winchester Medical Center, Bon Secours Maryview Medical Center and Riverside Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Matheau Julien was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.