Matheau Antoine Julien, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Round Rock, TX
Matheau Antoine Julien, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Round Rock, Texas, and NPI 1619189933, issued on May 7, 2007. Check the license (Texas U9422, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Matheau Antoine Julien
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- U9422 TX
036139510 IL
4301517340 MI
17695 ND
0101274262 VA
Self-reported in NPPES; status is on the state search - Practice location
- 300 University Blvd, Round Rock, TX 78665
- Phone
- (515) 509-0100
- Enumerated
- May 7, 2007
- Record last updated
- Jul 15, 2026
- Fax
- (512) 218-6330
- Medicare enrollment
- Enrolled (PECOS I20230125002966); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 484 in Texas → Look up another NPI →
Also registered at 300 University Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Torey AllingEmergency Medicine Physician1871121814
- Victoriano AquinoPhysician Assistant1750919742
- Rachel Arffa, MDOtolaryngology Physician1316268410
- Danielle Arnold, MDPediatrics Physician1114293834
- Joseph Ayoub, M.D.Diagnostic Radiology Physician1588844609
Verify Matheau Antoine Julien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U9422Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
17 Medicare Part D claims, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
6 hospitals and group practices
- Winchester Medical CenterWinchester, VA · Acute Care Hospitals4 of 5 stars
- Beaumont Medical Group- Specialty ServicesDearborn, MI
- Carle Health Care IncorporatedUrbana, IL
- Riverside Physician Services IncNewport News, VA
- Shawnee Mission Medical Center IncMerriam, KS
- Synergy CT Surgery PartnershipUpland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Matheau Antoine Julien among 484 thoracic surgery (cardiothoracic vascular surgery) physician records in Texas
Matheau Antoine Julien, MD is one of 484 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Texas. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 35% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2006 · median 1996 among the 309 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Texas
There are 484 thoracic surgery (cardiothoracic vascular surgery) physician records in Texas.
All 484 in Texas → Every provider in Round Rock → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Lewis King, M.D.Round Rock, TX 786651295750214
- Arthur McUnu, MDRound Rock, TX 786651124087960
- Soumya Neravetla, M.D.Round Rock, TX 786651558511865
- Edmond Owen, M.D.Round Rock, TX 786651609859776
- Edward Pottmeyer, MDRound Rock, TX 786651982710539
- Vicente Valero, MDRound Rock, TX 786651104055128
- Don Berry, M.D.Georgetown, TX 786331902130701
- Mark Jayawant, M.D.Georgetown, TX 786261033221486
Common questions
What is Matheau Antoine Julien, MD's NPI number?
Matheau Antoine Julien, MD's National Provider Identifier (NPI) is 1619189933, issued on May 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Matheau Antoine Julien, MD located?
The NPPES record lists a practice address at 300 University Blvd, Round Rock, TX, 78665. Phone: (515) 509-0100. Providers update this record themselves, so call before visiting.
How can I verify Matheau Antoine Julien, MD's license?
NPPES lists Texas license number U9422, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Matheau Antoine Julien, MD prescribe under Medicare Part D?
In 2024, Matheau Antoine Julien, MD had 17 Medicare Part D claims; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.