Theodoros Voloyiannis, M.D., FACS, FASCRS

Theodoros (Ted) Voloyiannis, MD, MHCM, FACS, FASCRS, is a colon and rectal surgeon with Texas Oncology PA, practicing at HCA Houston Healthcare Clear Lake Hospital in Webster, Texas. He serves as the Program Director and Clinical Professor of the ACGME Colon and Rectal Surgery Fellowship under HCA Houston Healthcare/UH Tilman J. Fertitta Family College of Medicine. He also serves as the Hospital’s Director of the Nationally Accredited Program for Colorectal Cancer, the first in Texas and first in HCA Enterprise. Lastly, he serves as the National Medical Director of Colorectal Oncology at Sarah Cannon Cancer Network/ HCA Healthcare.

Born in Thessaloniki, Greece, he earned his medical degree at the Aristotle University of Thessaloniki Medical School and completed his Surgical Residency at Baylor College of Medicine, M.E. DeBakey Department of Surgery in Houston. Dr. Voloyiannis completed his fellowship in Colon and Rectal Surgery at the University of Texas Health Science Center at Houston (UTHealth) Medical School. He is a Diplomat of both American Board of Surgery and American Board of Colon and Rectal Surgery. He is a Fellow of both American College of Surgeons and American Society of Colon and Rectal Surgeons. He recently obtained a Master’s in Health Care Management (MHCM) at Harvard University, Boston, MA.

Dr. Voloyiannis’ main focus involves surgical and non-surgical colon and rectal procedures. He has a strong interest in the latest advances and performs minimally invasive laparoscopic and robotic surgeries, colonoscopies and hemorrhoid procedures. He participated in the first robotic remote space surgery experiment with NASA and has pioneered single-incision robotic surgery, offering one of the most minimally invasive approaches for benign and malignant surgical diseases.

He spends extensive time with his patients in the office or hospital, because he believes not only in treating complex conditions, but helping patients return to normal lives as soon as possible. His office staff is fluent in Spanish.