Medical Profile


Board Certified

Dr. David Bub, MD

Dr. David S. Bub was Board Certified in General Surgery in 2002, and in Colon and Rectal Surgery in 2003. After finishing his colorectal surgery training at the Greater Baltimore Medical Center, he conducted a year of research at Sloan Kettering Cancer Center focusing on the diagnosis and management of rectal cancer. Prior to moving to the Lehigh Valley, he practiced at the Mount Sinai Hospital in New York City for six years specializing in the treatment of Crohn’s disease and colitis. 

During his training at Sloan Kettering, Dr. Bub became an expert in staging rectal cancer using the rectal ultrasound. Dr. Bub is co-author of “100 Questions And Answers About Colorectal Cancer”, written specifically for patients diagnosed with colorectal cancer to help them make informed decisions during a difficult time. He is an experienced laparoscopic surgeon for colorectal cancer as well as inflammatory bowel disease.


Abdominal Colon

Rectal Surgery

Anorectal Surgery


Ulcerative Colitis

Crohn’s Disease

Colorectal Cancer

Prior Surgical Failures


  • Medical School

    New York University School of Medicine, New York, NY 1991-1995

  • Internship

    St. Luke’s - Roosevelt Hospital Center, New York, NY 1995-1996

  • Surgical Residency

    St. Luke’s - Roosevelt Hospital Center, New York, NY 1996-1999

  • Colon & Rectal Fellowship

    Greater Baltimore Medical Center, Baltimore, MD 2000-2001