Dr. Walter Koltun

Jose Guillem is a Colorectal Surgeon and a General Surgeon in Hershey, Pennsylvania. Dr. Guillem is highly rated in 9 conditions, according to our data. His top areas of expertise are Colorectal Cancer, Lynch Syndrome, Familial Colorectal Cancer, Ileostomy, and Colostomy. Dr. Guillem is currently accepting new patients.

Walid Hesham is a Colorectal Surgeon and a General Surgeon in Lancaster, Pennsylvania. Dr. Hesham is highly rated in 15 conditions, according to our data. His top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Crohn's Disease, Bladder Reconstruction, and Hernia Surgery. Dr. Hesham is currently accepting new patients.

Thomas Nicholson, MD, specializes in colon and rectal surgery and is board-certified in surgery by the American Board of Surgery and colon and rectal surgery by the American Board of Colon and Rectal Surgery. He practices at Leader Surgical Associates-UPMC and is affiliated with UPMC West Shore, UPMC Memorial, UPMC Harrisburg, and UPMC Community Osteopathic. Dr. Nicholson earned his medical degree at the Pennsylvania State University College of Medicine. He completed his residency at WellSpan York Hospital and a fellowship at Georgia Colon & Rectal Surgical Associates. Dr. Nicholson is highly rated in 13 conditions, according to our data. His top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Encopresis, Colostomy, and Hernia Surgery.