Stony Brook University Hospital


The program was started by Dr. Marvin Corman in 2006, with the first resident completing the program in 2007. Since the beginning, the program has been a joint program with Winthrop University Hospital.This residency is designed to prepare the surgeon for the pursuit of an academic career in colon and rectal surgery equally as well as for private practice in colon and rectal surgery. The colon and rectal surgery residency program is a one-year fully accredited clinical residency.
Our faculty includes five full-time members at Stony Brook Hospital who are established colon and rectal surgeons based at Stony Brook University Hospital: Paula I. Denoya, MD, associate professor of surgery and residency program director; Marvin L. Corman, MD, professor of surgery; Kathreen P. Lee, MD, assistant professor of surgery; Jill C. Genua, MD, assistant professor of surgery; and William B. Smithy, MD, assistant professor of surgery.
In addition, we have part-time faculty member, Arnold R. Leiboff, MD, assistant professor of surgery, who has a busy private practice. At Winthrop Hospital, the dedicated faculty of our training program are: Dean P. Pappas, MD; Mala M. Balakumar, MD, who is the Site Director; Frank Caliendo MD; Steven Pelaez, MD; and Cesar Sanz, MD.
The colorectal resident divides their time equally between Stony Brook University Hospital and Winthrop Hospital (which is 36 miles from Stony Brook) in 1-2 month blocks. The continuity of the educational experience at both institutions is ensured through the collaborative efforts of the site director at Winthrop and the program director at Stony Brook.

Faculty Listing

Physicians at Stony Brook University Hospital
Paula I. Denoya, MD, Program Director
Marvin L. Corman, MD
Jill C. Genua, MD
Kathreen P. Lee, MD
Arnold R. Leiboff, MD
William B. Smithy, MD

Physicians at Winthrop Hospital
Mala M. Balakumar, MD - Site Director
Dean Pappas, MD
Frank Caliendo MD
Steven Pelaez, MD
Cesar Sanz, MD

Recent Fellow Placement

2013-2014: Montefiore New Rochelle Hospital, New Rochelle NY
2014-2015: Robert Wood Johnson Barnabas Hospital, New Brunswick NJ
2015-2016: Norwalk Hospital, Norwalk CT
2016-2017: Stony Brook University Hospital, Stony Brook NY
2017-2018: Memorial Hospital, Jacksonville FL

Recent Fellow Publications

Evaluation of the Educational Environment of a Cadaver Course in Robotic Colorectal Surgery: A Cross-sectional Study.
Gachabayov M, You K, Angelos GA, Bendl R, Anderson C, Essani R, Zakhaleva J, Amrani S, Barnajian M, Karas J, Bergamaschi R. Surg Technol Int. 2019 Apr 29;34.

Randomized clinical trial of elective resection versus observation in diverticulitis with extraluminal air or abscess initially managed conservatively. You K, Bendl R, Taut C, Sullivan R, Gachabayov M, Bergamaschi R; Study Group on Diverticulitis.
Br J Surg. 2018 Jul;105(8):971-979. doi: 10.1002/bjs.10868. Epub 2018 Apr 23.

Distractions during resident handoffs: incidence, sources, and influence on handoff quality and effectiveness.
Anderson CE, Nicksa GA, Stewart L. JAMA Surg. 2015 May;150(5):396-401.

Paula Denoya MD, FACS, FASCRS
Deborah Thornton
Stony Brook University Hospital Department of Surgery

Stony Brook NY 11794-8191

Number of Positions Offered:

  • Clinical: 1
  • Research: none

Accreditation Status

Next Scheduled (Self-Study) Visit

Case Numbers – Past Five Years

Abdominal Procedure 15/16 16/17 17/18 18/19 19/20
Segmental Colectomy
Laparoscopic Resection
Low Anterior Resection
Abdominoperineal Resection
Proctocolectomy Total
Proctocolectomy w/Ileostomy
Proctocolectomy w/Ileoanal Reservoir
Prolapse Repair Total
Prolapse Repair Abdominal
Prolapse Repair Perineal
Stomas Total
Stomas Complications
Pelvic Dissections
Abdominal Procedure Total
Endoscopy/Pelvic Floor 15/16 16/17 17/18 18/19 19/20
Colonoscopy Total
Colonoscopy Diagnostic
Colonoscopy w/Intervention
Pelvic Floor Evaluation
Endoscopy/Pelvic Floor Total
Anorectoal Procedure 15/16 16/17 17/18 18/19 19/20
Endorectal Advancement Flap
Fecal Incontinence Procedures
Internal Sphincterotomy
Transanal Excision
Anorectoal Procedure Total