- Professor of Surgery
 - Chief, Colon and Rectal Division
 
Board Certification
- Colon and Rectal Surgery
 - Surgery
 
Education
Medical School- University of Pennsylvania, Philadelphia, PA (1988)
 
- University of Pennsylvania Health System, Philadelphia, PA (1993)
 
- Colon and Rectal Surgery, Thomas Jefferson University Hospital, Philadelphia, PA (1994)
 
Affiliated Specialty Center
- Cancer Center
 - Inflammatory Bowel Disease Center
 
Clinical Interests/Expertise
- Laparoscopic — including robotic — and conventional surgery for colon and rectal cancer, familial polyposis, diverticulitis, and rectal prolapse
 - Inflammatory bowel disease, Crohn's disease, and ulcerative colitis
 - Transanal excision of rectal polyps
 - Treatment of anorectal abscess, fistula, fissure, anal condyloma, hemorrhoids, constipation, and fecal incontinence
 - Incisional/ventral hernia
 - Colonoscopy
 - Anorectal physiology/manometry studies
 - Anorectal ultrasound
 
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: 631-444-1825
Fax: 631-444-7784
For patient care information, including insurance participation and practice locations, click here
- Personal Statement
 - Honors
 - Publications
 - Additional
 
Surgery is my calling and I am privileged to have patients trust me with their health and well-being. I am energized by the challenges in surgical care and helping patients navigate through difficult choices with the goal of the best possible outcome. I use, and help develop, the most advanced technologies to achieve my goal of optimal care for each patient.
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NIH Summer Training Grant, University of Pennsylvania, Philadelphia, PA (1985)
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Outstanding Teaching Resident Graduate Hospital Award, Philadelphia, PA (1993)
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Best Teacher Award Graduate Hospital, Philadelphia, PA (2005-2006)
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Top Doctors for Cancer Castle Connolly American Registry (2006-2015)
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Top Doctors Castle Connolly American Registry (2007-2015)
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Best Paper ASCRS Annual Meeting San Antonio, TX (2012)
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Harvard Catalyst SHRINE Harvard Medical School Query Prize Boston, MA (2012)
 
- > Click here to see abstracts/full text of Dr. Nagles's journal articles presented in reverse chronological order, starting with most recent, on PubMed (National Library of Medicine).
 
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Professional Societies
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American Society of Colon and Rectal Surgeons
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Young Surgeons’ Committee Member
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Media Relations Chair
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American College of Surgeons
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Society for Surgery of the Alimentary Tract
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Association of Women Surgeons
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Society of American Gastrointestinal and Endoscopic Surgeons
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National Institutes of Health
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Editorial Boards
Ad hoc reviewer
New England Journal of Medicine
Diseases of Colon & Rectum
Inflammatory Bowel Diseases
Journal of the American College of Surgeons
Journal of Gastrointestinal Surgery
Annals of Surgery
Surgical Endoscopy
Colorectal Diseases
 
    