Fabrizio Michelassi, MD, General Surgery, New York, NY, NewYork-Presbyterian/Weill Cornell


General Surgery New York, NY

Colon & Rectal Surgery, Pancreas, Surgical Oncology (Other than Breast)

Lewis Atterbury Stimson Professor & Chair of Surgery, Surgeon-in-Chief, NewYork-Presbyterian/Weill Cornell Medical Center

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  • Office

    NYP/ Weill Cornell Medical Center
    525 E 68 St Starr 8
    New York, NY 10065
    Phone(212) 746-6006
    Fax(212) 746-8753
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Education & Training

  • NYU School of Medicine
    NYU School of MedicineResidency, General Surgery, 1983 - 1984
  • Massachusetts General Hospital
    Massachusetts General HospitalFellowship, Research, 1981 - 1983
  • NYU School of Medicine
    NYU School of MedicineResidency, General Surgery, 1977 - 1981
  • University of Pisa Faculty of Medicine
    University of Pisa Faculty of MedicineClass of 1975

Certifications & Licensure

  • IL State Medical License
    IL State Medical License 1984 - 2008
  • NY State Medical License
    NY State Medical License 1979 - 2021
  • American Board of Surgery Surgery

Awards, Honors, & Recognition

  • America's Top Doctors Castle Connolly, 2006-2014
  • Top Doctors: New York Metro Area Castle Connolly, 2006-2014
  • New York Magazine: Top Doctors Castle Connolly, 2005-2014
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Clinical Trials

Publications & Presentations


Journal Articles

  • Reply to Letter #2: Identifying Important Predictors for Anastomotic Leak after Colon and Rectal Resection: Prospective Study on 616 Patients  
    Trencheva K, Morrissey KP, Wells M, Mancuso CA, Lee Sang W, Sonoda Toyooki, Michelassi F, Charlson ME, Milsom JW, Ann Surg Epub, 1/30/2014
  • Surgical treatment of complex small bowel Crohn’s disease  
    Michelassi F, Sultan S, Ann Surg, 1/1/2014
  • Crohn’s recurrence after intestinal resection and anastomosis  
    Michelassi F, Digestive Diseases and Sciences, 1/1/2014
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Books/Book Chapters

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  • NSQIP-focused departmental grand rounds reports: Utilizing an educational conference to improve outcomes.
    Abelson JS, Mitchell KB, Rich BS, Frey TJ, Gellman C, Pomp A, Michelassi F, ACS NSQIP National Conference, New York, NY, 7/28/2014
  • Population-based trends of pancreaticoduodenectomy: Temporal and age-related outcomes.
    Afaneh C, O’Mahoney P, Giambrone G, Eskreis-Winkler J, Bhat AU, Zabih R, Michelassi F, Fleischut P, Digestive Disease Week, Chicago, IL, 5/5/2014
  • Accuracy of CTE and MRE imaging to detect lesions preoperatively in patients with Crohn’s disease.
    Seastedt KP, Trencheva K, Michelassi F, Alsaleh D, Milsom JW, Sonoda T, Lee SW, Shukla J, Garrett KA, Nandakumar G, ASCRS Annual Meeting, Hollywood, FL, 5/1/2014
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  • Novel strategies to reduce recurrence rates in Crohn’s disease. 
    Harvard Medical School, Boston, MA - 5/1/2014
  • Bowel sparing options in 2014. Do they still make sense? 
    Hollywood, FL - 5/1/2014
  • Novel Strategies to Reduce Recurrence Rates in Crohn’s Disease. 
    Massachusetts General Hospital, Boston, MA - 5/1/2014
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  • Medical Tweezers and Surgical Tools having Built-in Silicon-based Microsensors, Microactuators, and Sensing Circuits. 
    Lal A, Michelassi F, Chen P, Wu C, U.S. Patent Provisional Application for Letters Patent: USPTO #61/863,413; Cornell Center for Techno
  • Surgical alternatives in the treatment of ulcerative colitis and familial adenomatous polyposis. Educational motion picture for patients and their families, 
    Michelassi F
  • Medical and surgical intervention in inflammatory bowel disease. 
    Hanauer SB, Michelassi F, The Network for Continuing Medical Education

Press Mentions

  • The Long-Term Benefit of Surgery on Health-Related Quality of Life in Patients with Inflammatory Bowel Disease
    The Long-Term Benefit of Surgery on Health-Related Quality of Life in Patients with Inflammatory Bowel DiseaseJanuary 27th, 2017
  • Dr. Michael Zenilman Is New Chair of Surgery at New York Methodist Hospital
    Dr. Michael Zenilman Is New Chair of Surgery at New York Methodist HospitalOctober 28th, 2016
  • Trauma Expert Joins NewYork-Presbyterian Hospital and Weill Cornell Medical College
    Trauma Expert Joins NewYork-Presbyterian Hospital and Weill Cornell Medical CollegeSeptember 3rd, 2015
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Professional Memberships

  • Chair of the Executive Committee of the Board of Governors, 2015-2016
  • Society of Surgical Chairs
    President, 2010-2011
  • New York Surgical Society
    President, 2011-2012
  • Illinois Surgical Society
    President, 2001-2002
  • Western Surgical Society
    President, 2003-2004
  • Central Surgical Association
    President, 2005-2006
  • Central Surgical Association Foundation
    President, 2009-2010
  • Society for Surgery of the Alimentary Tract
    President, 2014-2015
  • Society of Surgical Oncology James Ewing Foundation
    President, 2010-2011
  • Spenser Surgical Society
    President, 1991-1992
  • Academy of Surgical Research
  • American Board of Surgery
    Senior Director, 2012 to present; Member of the Executive Council, 2009-2012; Director (Representative for CSA) 2006-2012; Chair, Surgical Oncology Advisory Council, 2009-2011; Surgical Oncology Board Chair, 2011-2012
  • American Society of the Italian Legions of Merit
    Grand Award of Merit recipient, 2012
  • American Surgical Association
    ASA Representative to the ACS Advisory Council for General Surgery, 2003-2009; Chair, Arrangements Committee, 128th Annual ASA meeting, 2008
  • Association for Academic Surgery
  • European Society for Surgical Research
  • International Association of Surgeons and Gastroenterologists
  • Society of University Surgeons
  • James IV Association of Surgeons
    Director and Secretary, US Chapter
  • International Association of Pancreatology
  • International Hepato-Pancreatico-Biliary Association
  • International Society for Digestive Surgery
    Vice President, 20014-present
  • The Halstead Society
    Senior Member, 2013-present
  • American Society of Clinical Oncology
  • American Pancreatic Association
  • American Society of Colon & Rectal Surgeons
  • American Society of Liver and Pancreas Surgery
  • American Gastroenterologic Association
  • Chicago Surgical Society
    Member; Chair of the Program Committee, 1996-1999
  • Crohn's and Colitis Foundation of America

Hospital Affiliations