Welcome to Charleston GI

Charleston Gastroenterology Specialists, Charleston Endoscopy Center and Summerville Endoscopy Center are dedicated to the diagnosis, treatment and prevention of diseases affecting the digestive system. Charleston GI’s Open Access Colonoscopy Program allows patients without significant gastrointestinal symptoms or other health risk factors to schedule a colonoscopy without a preliminary visit prior to the procedure. Our practice is the first and largest gastroenterology practice in the lowcountry to operate a physicians’ practice and two nationally certified and state licensed endoscopy centers. Our mission is to provide the highest level of medical care in the field of gastroenterology. We value the health, service, and satisfaction of our patients above all else.

Hours & Locations


All Charleston GI locations are smoke free facilities.

Charleston Endoscopy Center
Mon – Fri 7:00 am to 4:00 pm

Charleston Gastroenterology Specialists, PA
Mon – Thur 8:00 am to 5:00 pm
Friday 8:00 am to 1:00 pm

Summerville Endoscopy Center
Mon – Fri 7:00 am to 4:00 pm

Meet our Team

Charleston GI Rock Stars

Our team includes eleven outstanding Board Certified Gastroenterologists. Each physician granted privileges at Charleston Endoscopy Center and Summerville Endoscopy Center is required to be board certified by their respective specialty board, or board eligible and in the process of board certification. With combined experience of over 100 years of treating patients, our staff is dedicated to helping you with all of your needs.

News & Updates

    Physician Groups Collaborate to Bring More Healthcare Options to Berkeley County
    April 28, 2017
    Windmill Station CHARLESTON, South Carolina, April 17, 2017 - Three Charleston area medical practices are teaming up to bring...
    March is Colon Cancer Awareness Month
    February 28, 2017
    Additional Resources: It's Time. Schedule your colonoscopy today. Learn more about colonoscopies. Do you know your family's history? Learn...
    Proud Member of the SCGA
    October 31, 2016
    Charleston GI physicians are proud to be members of the South Carolina Gastroenterology Association. At Charleston GI, prevention is...

As Seen on TV!

What our patients think

- Patient of Dr. Marsteller

I have had a very difficult time w/ doctor and office staff since I moved to SC. CGI is the BEST Doctor and staff I’ve encountered down here. I recommend you to everyone. I don’t give out Very Goods easily, but you earned it.

-Moncks Corner

I was well pleased with the way things went. Staff was top notch and they should be commended for doing a good job. Dr. Brener is a very good doctor.


I was really afraid to have that procedure. Everyone was so very kind and reassuring. My thanks to your caring staff and Dr. Brener’s expertise.