University Colon & Rectal Surgery

• Main Campus

Address

1934 Alcoa Highway

Medical Building D, Suite 370

Knoxville, TN 37920

Phone

865-305-5335

Fax

865-305-8840

A woman doctor holds a graphic of the colorectal system

Our Services Our Providers Prepare for Your Visit About Us

Our Services

We offer the latest treatment and techniques for colorectal disorders.

A sign is something you see, such as blood in your stool. It is a clue that something is wrong and you may have a disease. A symptom is usually something you feel like a pain in your abdomen (stomach area) that may also indicate something is wrong.

Cancer that starts in different areas of the colon or in the rectum may cause different signs and symptoms. Research shows that when colorectal cancer is detected early, a patient has a much greater chance of complete recovery.

Learn more about the signs and symptoms of colorectal conditions.

Download and print these forms for more information about your visit or procedure.

New Patients

Visiting us for the first time? Let us help you prepare. Download the New Patient Packet

Colonoscopy Patients

Here, you’ll find patient resources for more information about colonoscopy:

ASC Colonoscopy Patient Education

Colonoscopy Prep Instructions-Miralax

Colonoscopy Prep Instructions-Suprep

Colonoscopy Prep Instructions-Golytely

Post-Colonoscopy Instructions

Surgical Patients

Download the information you need regarding your surgery.

Postoperative Instructions for Abdominal Surgery

Postoperative Instructions for Anorectal Surgery

Our Providers

Mark A. Casillas, FASCRS, FACS, MD

Associate Professor, Colon and Rectal Surgeon

Specialties:
Colon and Rectal Surgery

Dena S. Charles, NP

Nurse Practitioner

Specialties:
Colon and Rectal Surgery

Gregory K. Low, MD

Colon and Rectal Surgeon, Assistant Professor of Surgery

Specialties:
Colon and Rectal Surgery, Rectal Surgery

Clinical Focus:
Colon Cancer, Rectal Cancer, Anal Cancer, Appendiceal Cancer, Inflammatory Bowel Disease (Crohn's, Ulcerative Colitis), Diverticulitis, Colostomy/Ileostomy, Rectal Prolapse, Hemorrhoids, Anal Fissures, Fecal Incontinence, Colonic Inertia, Robotic Surgery, Laparoscopic Surgery, Colonoscopy

Andrew J. Russ, MD

General and Colorectal Surgeon, Associate Professor of Surgery

Specialties:
Colon and Rectal Surgery, Rectal Surgery

Clinical Focus:
Colorectal cancer, Minimally invasive surgery, Inflammatory bowel disease, Anorectal disorders

Prepare for Your Visit

Address

1934 Alcoa Highway
Knoxville, TN 37920

Where we are

Medical Building D, Suite 370

parking

Parking Garage G or Parking Garage 4

Map of The University of Tennessee Medical Center

About Us

At University Colon & Rectal Surgery, our surgeons are experts in laparoscopic or minimally invasive surgery of the colon and rectum, transanal endoscopic microsurgery and the latest treatments for rectal cancers.

As specialists in colorectal surgery, we are very aware that people find it difficult to discuss or attend to colon and rectal problems. That is why our office is very focused on making you feel comfortable and relaxed about your treatment.

Training general surgery residents allows the University Colon & Rectal surgeons to teach future surgeons the latest techniques. By leading the advances in colon and rectal surgery, our surgeons stay at the forefront of colorectal surgery.