• Joel Bauer MD
  • Stephen Gorfine MD
  • David Chessin MD
  • Daniel Popowich MD

About MSA

The History of Manhattan Surgical Associates

About Our Skilled Colorectal Surgeons

Manhattan Surgical Associates began in January 1964 with the partnership of Dr. Arthur H. Aufses, Jr. and Dr. Isadore Kreel, two exceptional gastrointestinal surgeons. The practice grew, and in 1970 they were joined by Dr. Irwin M. Gelernt as the third member of the group. Dr. Gelernt was quickly recognized as one of the most talented surgeons in the country for the surgical management of Crohn's disease and ulcerative colitis. In 1970, Manhattan Surgical Associates became the first professional corporation (PC) in New York State. Dr. Joel J. Bauer joined in 1976 and Dr. Stephen R. Gorfine was added in 1987. Since then, we have selected and recruited only our top surgical and colorectal residents to join and grow our practice. Dr. David B. Chessin was added in 2008, and our newest member, Dr. Daniel A. Popowich, joined us in 2013.

To benefit from our history of excellence in surgical procedures, call Manhattan Surgical Associates at 646.798.4606.

A History of Breakthrough Colorectal Procedures

Manhattan Surgical Associates helped pioneer the continent ileostomy, or Kock Pouch, in the surgical treatment of ulcerative colitis. To date, we have performed over 600 Kock pouch procedures, one of the largest experiences in the world.

In 1979, restorative proctocolectomy with ileal J pouch (“the J-pouch procedure”) was introduced for patients with ulcerative colitis and familial adenomatous polyposis. In 1980 we performed the first of these procedures at Mount Sinai. We are leaders in the performance of this procedure as a single surgery allowing many of our patients to completely avoid a stoma. To date, we have performed over 1400 restorative proctocolectomies, 750 of them without ileostomies. Of these, over 400 were performed as a one stage procedure. This remains one of the largest experiences with this operation worldwide.

In 1995, we published one of the first series of laparoscopic small intestinal and colonic resections for Crohn's disease A study of our extensive experience with minimally invasive procedures for inflammatory bowel disease was published in 2008. We have helped develop laparoscopic restorative proctocolectomy and in 2008 we published details concerning our experience with this procedure.

Currently, we are working on advancing the following:

  • Establishing minimally-invasive procedures for the treatment of colorectal disease
  • Assisting in the development of colorectal surgical technology
  • Finding better treatment options for intestinal disease and abdominal wall hernias
  • Treatments of benign and malignant anorectal diseases

Mt. Sinai Affiliation

Manhattan Surgical Associates has a long standing affiliation with the Mount Sinai Medical Center and the Icahn School of Medicine at Mount Sinai. The Mount Sinai Medical Center is a large teaching institution located on the Upper East Side of Manhattan. In the most recent US News and World Reports Best Hospitals edition, Mount Sinai ranked eighth in Gastroenterology and GI Surgery, ranked ninth nationally in adult specialities, and seventh in pediatric specialties.

Dr. Bauer and Dr. Gorfine are Professors of Surgery and Dr. Chessin and Dr. Popowich are Assistant Professors of Surgery at the Icahn School of Medicine at Mount Sinai. Our practice plays a significant role in the training of fellows, residents, and medical students. Dr Bauer was the Surgical Clerkship Coordinator and Director of the surgical clerkship for the School of Medicine from 1985-1999 and Director of Surgical Education from 1997-99. Our doctors are active in the mentoring and training of medical students, surgical residents, and colorectal residents. We are instrumental in fostering colorectal research at the institution.

Contact Us

We look forward to seeing you! Fill out the following form or call (646) 798-4606 and a helpful member of our team can return your inquiry shortly.

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