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Dr. Bub, MD

Dr. David 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. For the last six years, he has been in practice at the Mount Sinai Hospital 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
  • Diverticulitis
  • Ulcerative Colitis
  • Crohn’s Disease
  • Recurrent 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