Gastroenterologist talking to patient Gastroenterology blue

William N. Stassen, M.D.


Ages Treated: 18+


Quick Facts:

  • Virtual Telemedicine Visits Available, Call For Details
  • Board Certified Gastroenterologist
  • Performs Colonoscopies
  • Currently Accepting New Patients
  • Most Insurance Plans Accepted

William N. Stassen, M.D. Practices at the Following Locations

Shoal Creek Blvd. – Austin, TX 8015 Shoal Creek Blvd., Suite 118, Austin, TX 78757 (512) 244-2273 Request an appointment at this location
Round Rock – Wyoming Springs, TX 7200 Wyoming Springs Drive, Suite 1300, Round Rock, TX 78681 (512) 244-2273 Request an appointment at this location
"$000 - $000",

About William N. Stassen, M.D.

A native of Ireland, Dr. William Stassen attended medical school at Trinity College at the University of Dublin. He completed his residency training in internal medicine in Ireland followed by his fellowship in gastroenterology at the Cleveland Clinic in Ohio. He has received extensive training both in the United States and in Ireland under the guidance of some of the most esteemed professors of gastroenterology.

Dr. Stassen’s special interests are liver and inflammatory bowel diseases, and he has published numerous articles on various aspects of gastroenterology and hepatology. He received the Peter A.J. Adam Award for Excellence in Research in 1984. Dr. Stassen has practiced in the Austin and Round Rock areas since 1985.


Medical Degree: Trinity College at the University of Dublin
Residency: Internal Medicine, Trinity College at the University of Dublin
Fellowships: Gastroenterology, Cleveland Clinic Educational Foundation and MetroHealth Case Western University

Awards and Accreditation:

Professional Affiliations

American Gastroenterological Association
American Medical Association
Texas Medical Association
Travis County Medical Society