Dr. Mark T. Stewart
- Gender: Male
- Experience: 44 years
- Graduated from: University Of Texas Southwestern Medical School At Dallas
- Graduation year: 1977
- Sole propriator: No
- NPI: 1336163633
Dr. Mark T. Stewart M.D.
Vascular Surgeon
He is located at 1010 West 40th Street in Austin, TX 78756. Can help patients with the following: Aortic Dissection, Chronic Venous Insufficiency, Ischemia, May-Thurner Syndrome, Stroke, Venous Ulcer. His National Provider Identifier (NPI) number is 1336163633. Appointment can be made via the phone number (512) 459-8753. He also has a website where you can get more information. The website can be found at https://healthcare.ascension.org/doctors/1336163633/mark-thomas-stewart-austin-tx. He is affiliated with 1 practices and 1 hospitals.
Conditions treated
Dr. Mark Stewart, being an vascular surgeon, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Mark T. Stewart.
- Abdominal Aortic Aneurysm (AAA)
- Aneurysm
- Aortic Dissection
- Atherosclerosis
- Bleeding Varices
- Blood Clots
- Chronic Venous Insufficiency
- Claudication
- Embolism
- Ischemia
- May-Thurner Syndrome
- Peripheral Artery Disease (PAD)
- Renal Vascular Disease
- Stroke
- Venous Ulcer
Procedures Performed by Dr. Mark T. Stewart
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Mark T. Stewart as in-network for the following 2026 plans.
Health plans
Imperial Insurance Companies, Inc.
Network data as of Sep 16, 2025, as reported by the insurer.
Show all 7 plans from Imperial Insurance Companies, Inc.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Imperial Preferred Bronze | HMO · Bronze | Preferred | Accepting new patients |
| Imperial Preferred Gold | HMO · Gold | Preferred | Accepting new patients |
| Imperial Preferred Gold Zero | HMO · Gold | Preferred | Accepting new patients |
| Imperial Preferred Silver | HMO · Silver | Preferred | Accepting new patients |
| Imperial Standard Bronze | HMO · Expanded Bronze | Standard | Accepting new patients |
| Imperial Standard Gold | HMO · Gold | Standard | Accepting new patients |
| Imperial Standard Silver | HMO · Silver | Standard | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Mark T. Stewart is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Payments received
Drug payment
| W. L. Gore \u0026 Associates | $2796 |
| Medtronic | $406 |
| Endologix | $380 |
Other
| Food and Beverage | $2047 |
| Travel and Lodging | $1808 |
Studies
UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS
Graduated in 1977Other ways to reach out
- Website: https://healthcare.ascension.org/doctors/1336163633/mark-thomas-stewart-austin-tx
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- Gender: Male
- Address: 1514 Jefferson Highway New Orleans, 70121, LA
- Gender: Male
- Address: 1010 West 40th Street Austin, 78756, TX
- Gender: Male
- Address: 1010 West 40th Street Austin, 78756, TX
- Gender: Male
- Address: 1010 West 40th Street Austin, 78756, TX
- Gender: Male
- Address: 1010 West 40th Street Austin, 78756, TX
- Gender: Male
- Address: 1010 West 40th Street Austin, 78756, TX
- Gender: Male
- Address: 1010 West 40th Street Austin, 78756, TX
- Gender: Male
- Address: 1010 West 40th Street Austin, 78756, TX
- Gender: Male
- Address: 1010 West 40th Street Austin, 78756, TX
Questions & Answers
Where can you meet with Dr. Mark Stewart?
Dr. Mark Stewart's office is located at 1010 West 40th Street in Austin, TX 78756.
What conditions does Dr. Mark Stewart treat?
Dr. Mark Stewart provides treatment for Aortic Dissection, Chronic Venous Insufficiency, Ischemia, May-Thurner Syndrome, Stroke, Venous Ulcer. For the full list see this list.
Has Dr. Mark Stewart affiliation with hospitals?
Dr. Mark Stewart is affiliated with SETON MEDICAL CENTER AUSTIN.
Does Dr. Mark Stewart accept insurance?
Dr. Mark Stewart is listed in-network for 7 ACA Marketplace (Obamacare/HealthCare.gov) plans from Imperial Insurance Companies, Inc.. See the Marketplace plans section for details.
Does Dr. Mark Stewart have affiliation with practices?
Dr. Mark Stewart is affiliated with Veinsolutions.