Advanced Surgical Technology

Meet Dr. Udaya Liyanage

Board Certified General and Vascular Surgeon

Dr. Udaya Liyanage, MD, our founder, is a board certified general and vascular surgeon in Mount Vernon and Centralia, IL with a reputation for excellence. He graduated with honors from Harvard Medical School. Dr. Liyanage and his hand-selected medical team offer patients warmth, compassion, and top-level professional skills.

Meet your Artery Expert in Centralia, Herrin, and Mt. Vernon IL

Advanced Surgical Technology

Meet Dr. Merrilee Brandt

Board Certified Surgeon

Dr. Brandt is a board certified surgeon specializing in breast surgery. She is passionate about curing breast cancer and utilizing the latest techniques and innovations to be able to provide the best treatment options for her patients. Dr. Brandt performs all procedures required to diagnose and treat breast cancer, including mastectomies, mammograms, breast biopsies, lumpectomies, and other procedures to treat a variety of breast conditions. 

Meet Your Breast Specialist

Advanced Surgical Technology

Meet Dr. Brian M Rapp

Board Certified Vascular Surgeon

Dr. Brian Rapp is a board-certified vascular surgeon, offering the full spectrum of vascular care at our Mt. Vernon location. Dr. Rapp graduated from Washington University School of Medicine and brings over 20 years of healthcare experience to AST.  Dr. Rapp is featured as one of America’s best Vascular Surgeons 2024 on Newsweek. He is passionate about providing exceptional patient care and utilizing the latest technologies and advances in vascular surgery.

Meet Your Vascular Specialist

Advanced Surgical Technology


No Small Matter

Vascular conditions can lead to dangerous health conditions if not treated rapidly and correctly. At Advanced Surgical Technology, Dr. Liyanage, a board certified surgeon specializing in vascular procedures including veins, in Centralia, Herrin, and Mt. Vernon, performs a range of state-of-the-art vascular treatments with the latest advances in medical technology.

Learn More About Vascular Procedures

All your Medical Needs

Primary Care & Long Term Wellness

You deserve to have access to medical providers who will care for you and your family in all the years ahead. At AST Primary Care, we provide primary care, family care, Medicare wellness visits, and offer same-day appointments, and we welcome first-time patients.

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Now offering mammography at Advanced Surgical Technology in Mt. Vernon

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