William B. Smithy, MD

Board Certifications

Training

Medical School
  • Columbia University (1981)
Residency Training
  • General Surgery, St. Luke's-Roosevelt Hospital Center, New York, NY
Fellowship Training
  • Colon and Rectal Surgery, Robert Wood Johnson University Hospital, New Brunswick, NJ

Affiliated Specialty Center

Clinical Interests/Expertise

  • Management of diseases of the small bowel, colon, rectum, and anus, including colon, rectal, and anal cancer, diverticulitis, familial polyposis, chronic ulcerative colitis, Crohn's disease, ileoanal reservoir (J-pouch), colon polyps, incontinence, prolapse, anorectal abscess, fistula, fissure, and hemorrhoids
  • Colonosopy
William B. Smithy, MD

Contact Information

Division of Colon and Rectal Surgery
Department of Surgery, Health Sciences Center T18-046B
Stony Brook Medicine
Stony Brook, NY 11794-8191
Tel: 631-444-2704
Fax: 631-444-7784

Practice Locations

Smithtown Office
222 Middle Country Road, Suite 209
Smithtown, NY 11787
Tel: 631-444-4545
Fax: 631-638-2830


  • Honors
  • Additional
  • Selected for inclusion in past editions and the latest edition (2010) of the Castle Connolly Guide, Top Doctors: New York Metro Area, representing the top 10% of physicians in the New York Metropolitan area
  • Alpha Omega Alpha Voluntary Faculty Award (Stony Brook Medical School Class of 2008)
  • Fellow, American College of Surgeons (FACS)
  • Fellow, American Society of Colon and Rectal Surgeons (FASCRS)