Physician’s Profile

Christopher Mascarenhas, MD

Board Certificates: 
Colon and Rectal Surgery
Abscess Drainage
Anal Cancer
Anal Fissure and Fistula
Anal Fistula
Anal Sphincter Incontinence
Anal Warts
Anorectal Disorder
Anorectal Surgical Procedures
Biofeedback Therapy
Botulinum Toxin (Botox Injection)
Bowel-Sparing Strictureplasty
Colon and Rectal Disease
Colon Cancer
Colon Polyps
Colorectal Cancer
Colorectal Cancer Screening
Crohn's Disease
Diagnostic and Therapeutic Colonoscopy
Diverticular Disease
Fecal Incontinence
Gastrointestinal (GI) Second Opinion
Genital Warts
Hemorrhoid Surgery
Inflammatory Bowel Diseases (IBD)
Intestinal Obstruction
J Pouch
Laparoscopic Colectomy
Laparoscopic Colon and Rectal Surgery
Laparoscopic Colon Resection
Laparoscopic Colon Surgery
Laparoscopic Proctectomy
Minimally Invasive Colon Surgery
Minimally Invasive Rectal Surgery
Ostomy Care
Ostomy Creation, Care and Revision
Ostomy Reversals
Pelvic Floor-Muscle Rehab
Pelvic Floor Dysfunction
Pilonidal Cyst/Abscess
Rectal and Anal Surgery
Rectal Bleeding
Rectal Cancer
Rectal Prolapse
Rectovaginal Fistula Repair
Robotic Colon and Rectal Surgery
Small Bowel Cancer
Small Bowel Disease
Small Bowel Resection
Sphincter Saving Operations
Sphincter Sparing Surgery
Transanal Minimally Invasive Surgery (TAMIS)
Twisted Colon/Intestine
Ulcerative Colitis

First rank in the University and State in M.S. General Surgery Boards. Bangalore, India. 2004

Certificate of Merit in Pharmacology and Microbiology. Bangalore, India. 1996


Christopher Mascarenhas MD, is an Assistant Professor of Surgery. He has trained in all aspects of colon and rectal surgery. With a special interest in minimally invasive surgery, and robotic colorectal surgery . He routinely uses these techniques for a variety of different conditions.

Dr. Mascarenhas has also completed advanced training in complex re-operative surgery for advanced inflammatory bowel disease, which includes ulcerative colitis and Crohn’s disease. He has performed a high volume of surgeries on patients with IBD, many of whom require creation of a pouch following removal of the colon, rectum, or anus. He has a special interest in transanal minimally-invasive and transanal total mesorectal excision surgery techniques as well.

Dr. Mascarenhas, sees patients at his main office at NewYork-Presbyterian/Columbia, 161 Fort Washington Avenue, 8th floor, in Manhattan. In addition to seeing patients and operating at our Main Campus, he will be available to see patients at the Division of Colon and Rectal Surgery’s Hudson Valley, New York and Englewood, New Jersey offices to expand the Division’s colorectal expertise at these locations.

R Nunoo, C Mascarenhas, T Asgeirsson, R Rivera, M Luchtefeld, R Figg. Outcomes of Ileocolic resection for Crohns patients in comparison to ileocolic resection for non-crohns patients and the impact of preoperative immunosuppressive therapy with biologics and Steroids on Inpatient complications. Am J Surg 2012 Mar; 203(3): 375-8.
T Asgeirsson, C Mascarenas, A M. Kaiser. Screening and Surveillance Strategies in Hereditary Colon and Rectal Cancer. Seminars in colon and rectal surgery. 2011 June 22(2): 88-94
Onesti JK, Mascarenhas CR, Chung MH, Davis AT. Isolated metastasis of colon cancer to the scapula: is surgical resection warranted? World journal of surgical oncology. 2011 Oct 26; 9:137
Asgeirsson T, Zhang S, Nunoo R, Mascarenas C, Dujovny N, Luchtefeld M, Cavey GS, Senagore A. Citrulline: A potential immunomodulator in sepsis. Surgery 2011 September 150(4): 744-51.
Dale PS, Mascarenhas CR, Richards M, Mackie G Mammography as Screening Tool for Diabetes Mellitus - . J Surg Res. 2010 Mar; 159(1): 528-31
S. Joseph, C. Mascarenhas, M. Othman, S. Puli, J. Marshall, B. Miedema, N. Rangnekar, J. Ibdah, M. Antillon, K. Thaler NOTES: A Systematic Review of Animal Studies. Gastrointestinal Endoscopy 2007 Volume 65, Issue 5, Pages AB295 - AB295
Dale PS, Mascarenhas C, Richards M, Mackie G. Mammography as screening tool for coronary artery disease -J Surg Res. 2008 Jul; 148(1): 1-6.
Mascarenhas C, Steele SR, Hull T. The ABC's of re-do ileoanal pouches, what every gastroenterologist should know. Curr Opin Gastroenterol. 2019 Apr 9 Epub
Christopher Mascarenhas, Mathew Kalady, Chapter 22. Left and sigmoid Colectomy Netter's Surgical Anatomy and Approaches. 2nd Edition (in Print )