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Providing a full range of specialized colorectal care
At Staten Island University Hospital, we are dedicated to improving the lives of patients with colorectal disorders. We offer a wide variety of surgical and non-surgical treatments, and strive to make your experience with us as comfortable as possible.

About us

The Division of Colon and Rectal Surgery at Staten Island University Hospital offers comprehensive and compassionate care for disorders of the colon, small intestine, rectum and anus.

Using state-of-the-art technologies like endorectal ultrasound, magnetic resonance imaging and virtual colonoscopy, we diagnose and assess the full spectrum of colon and rectal diseases. We offer surgical and non-surgical treatment options, using a team approach to develop a personalized care plan for you.

Should surgery be part of your treatment, our board-certified surgeons are skilled in the most advanced, minimally invasive laparoscopic and robotic surgical techniques designed to minimize pain and discomfort and shorten recovery time.

Our multidisciplinary team will look at your specific needs at each stage of treatment, working together to bring you the best possible outcome. Specialists involved in your care may include:

  • Radiologists
  • Pathologists
  • Medical oncologists 
  • Radiation oncologists
  • Physical therapists
  • Social workers
  • Nutritionists
  • Genetic counselors

Our patient-focused care treats the whole person, not just the disease.

Conditions we treat

Benign disorders of the colon and rectum

  • Abscesses
  • Anal condylomas
  • Anal fissures
  • Anal fistula
  • Colonic dysmotility
  • Constipation
  • Diverticulitis
  • Fecal incontinence
  • Hemorrhoids
  • Pilonidal cysts
  • Pouchitis
  • Rectal prolapse

Cancer disorders

  • Colon and rectal cancer
  • Polyps or adenomas
  • Retrorectal tumors

Inflammatory bowel disease

  • Crohn's disease
  • Ulcerative colitis

Inherited colon and rectal syndromes

  • Familial adenomatosis polyposis (FAP)
  • Hereditary nonpolyposis colorectal cancer syndrome (HNPCC)
Colorectal cancer health risk assessment

Screening and early detection save lives

To take our free online health assessment, click here. Then bring the results along on your next doctor’s visit and discuss with your physician.

We offer genetic counseling services to those who may be at risk for an inherited cancer syndrome. Our experts provide personalized risk assessments, education and the opportunity for genetic testing when appropriate.

Learn more

Joseph Martz, MD

Specialties: Surgery, Colon / Rectal Surgery

Jennifer Lynn Agnew, MD

Specialties: Surgery, Colon / Rectal Surgery

Nathaniel J. Holmes, MD

Specialties: Surgery, Colon / Rectal Surgery

Antonio I. Picon, MD

Director - Director, Surgical Oncology of Surgery, Staten Island University Hospital

Specialties: Surgical Oncology, Surgery
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