Colonoscopy Specialist

Discover how a Colonoscopy can prevent and detect early stages of colon cancer

As a leading gastroenterology practice, Triborough GI offers top-notch colonoscopy services. A colonoscopy is a safe and effective procedure that helps detect and prevent the early stages of colon cancer.

Our experienced team of professionals will guide you through the entire process, from preparing for the procedure to post-procedure care. We use state-of-the-art equipment and techniques to ensure that you receive the highest quality care possible. You can trust us to provide you with the peace of mind you need.

Schedule your colonoscopy today and take control of your health.

Why Choose Us for Your Colonoscopy?

  • Comprehensive screening and diagnostic services
  • State-of-the-art equipment and techniques
  • Experienced and caring staff
  • Peace of mind knowing you are in good hands
  • Post-procedure care and support

Our Colonoscopy Specialists

Our team of board-certified GI doctors and medical staff are dedicated to providing you with the best possible care. We understand that a colonoscopy can be a stressful experience, and we are here to answer any questions and provide you with the support you need.

Igor Grosman, DO, FASG

Igor Grosman, DO, FASG

Gastroenterologist & Obesity Medicine Specialist

Igor Grosman, DO, FASG, is board certified in both gastroenterology and obesity medicine, serving patients at Triborough GI in Brooklyn, the Bronx, and Staten Island, New York.

Alexander Brun, MD

Alexander Brun, MD

Gastroenterologist & Hepatologist

Alexander Brun, MD, is a board-certified specialist in internal medicine and gastroenterology. He serves the communities of Brooklyn, Staten Island, and the Bronx, New York, at Triborough GI.

Prateek Chapalamadugu, MD

Prateek Chapalamadugu, MD

Gastroenterologist & Hepatologist

Prateek Chapalamadugu, MD, is a board-certified gastroenterologist at Triborough GI serving the communities of Brooklyn, the Bronx, and Staten Island, New York.

Nancy Chen, MD

Nancy Chen, MD

Gastroenterologist, Obesity Medicine & Hepatologist

Nancy Chen, MD, is a board-certified gastroenterologist and internist at Triborough GI, a gastroenterology clinic with locations in Brooklyn, the Bronx, and Staten Island, New York.

Ilona Rabinovich

Ilona Rabinovich

ANCC Board Certified Family Nurse Practitioner

Ilona Rabinovich is a ANCC board certified Family Nurse Practitioner (FNP). She is dedicated and compassionate with a strong commitment to providing comprehensive healthcare to all.

Konstantin Peysin, DO

Konstantin Peysin, DO

Gastroenterologist & Hepatologist

A board-certified gastroenterologist, Dr. Konstantin Peysin currently practicing at Triborough GI, located in Brooklyn, Bronx, and Staten Island, NY

Where are we located?

Our practice is located in Bronx, Brooklyn and Staten Island, making it easily accessible for our patients. We are conveniently located near public transportation and offer ample parking.

Important information about Colonoscopy

Yevgeniy Mikityanskiy, DO. Talks to us about this :


A colonoscopy is a safe medical procedure, in which one of our Triborough GI gastroenterologists will visually examine your colon and rectum. This procedure is most commonly performed to test for colon cancer.

A colonoscopy is performed by inserting a thin flexible tube (colonoscope) into the rectum, and guiding it through the colon. The colonoscope is fitted with a video camera and provides the doctor with an up-close look of the entire colon. If necessary, the colonoscope can be used to take biopsies (tissue samples). The procedure generally takes between 20 minutes to 1 hour.


Why you may need a Colonoscopy

colonoscopy may be recommended by your physician to:

  • Screen for colon cancer or polyps (growths of tissue in the colon) 
  • Diagnose symptoms such as: rectal bleeding, abdominal pain, persistent diarrhea or constipation, etc.

Moreover, by visualizing the colon, your doctor will be able to see signs of other medical issues.


For your colonoscopy to be successful, your colon will need to be completely cleaned out. An unclean colon will make it difficult for the doctor to get clear images and may cause some abnormalities to be missed.

To make sure your colon is completely cleaned out; you may be asked to:

  • Take laxatives – Taking a laxative in either liquid or pill form, is a common recommendation and will most likely need to be done the night before and the morning of the procedure.
  • Keep to a specific diet – You will not be able to eat solid food the day before your colonoscopy. All consumed liquids will need to be clear (water, tea, etc.). After midnight on the night before the procedure you will not be able to eat or drink anything.
  • Adjust your medications – Some medications may interfere with your colonoscopy results. Please speak with your doctor about any medication you may be taking. Your dosage may need to be temporarily adjusted.
  • Use an enema – Using an over the counter enema kit right before the procedure will effectively empty your lower colon. An enema is not a commonly recommended tool but may be helpful.

Transportation – Patients are usually given a sedative during a colonoscopy. You will need assistance after the procedure, and it is recommended to have someone take you home after your test.


In a typical colonoscopy procedure, your doctor will give you a sedative to help you relax. You won’t feel a lot of pain, but experiencing cramping, pressure, and bloating is not uncommon. The sedative will help you with any discomfort.

You will be asked to lie on your side or on your back while the doctor slowly inserts the thin flexible tube (colonoscope) into your rectum and moves it along your large intestine. Video from the device will display on a monitor, while your doctor controls the colonoscope’s movements.

You may experience an urge to use the bathroom. It is also normal to pass gas during this procedure. Make sure to let your doctor know if you are feeling any discomfort.

Recovery from a Colonoscopy

After your procedure you will be monitored by our office staff until the sedatives start wearing off. You may feel bloated or experience minor cramping. This is due to air that will have entered your colon during the procedure; these effects will pass quickly. After the procedure you will be allowed to eat. You may continue feeling bloated for several hours after the procedure. Flatulence may continue as well.

Your doctor will have to wait for any biopsy results to let you know if they found anything noteworthy. As previously stated, due to the sedative, you must have someone drive you home before you can be released.


While risks of a colonoscopy are rare, they are possible. The most severe of these is the perforation of your colon lining which would likely require a surgical repair.

Less severe complications can include:

  • Minor bleeding
  • Fever
  • Abdominal pain

You should immediately contact your doctor if you notice any of these complications. 

Frequently Asked Questions (FAQs)

A colonoscopy is usually not painful, but some discomfort may be felt during the procedure.

A colonoscopy typically takes 30 minutes to an hour to complete.

Risks associated with a colonoscopy include bleeding, perforation of the colon, and adverse reactions to anesthesia.

The recommended frequency for colonoscopy screenings varies depending on age and personal health history. It’s best to consult with a doctor to determine the appropriate screening schedule.

After a colonoscopy, you may experience some cramping, bloating, or gas. It’s important to follow the doctor’s post-procedure instructions, including when to resume normal activities and what to eat and drink.

Triborough GI has the top NYC gastroenterologists in Brooklyn, Staten Island and the Bronx. Our doctors provide only the most specialized and extensive care. Our motto is that the patient’s care comes first! Highly reputable and top rated in NYC, our gastroenterologists will thoroughly examine, diagnose and treat you in any way they can. 

Schedule an appointment at (718) 332-0600 today with one of our Triborough GI doctors at our Brooklyn, Staten Island or Bronx locations for any questions or concerns you have regarding your Colonoscopy procedure.


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