Request an Appointment
Your Trusted Gastroenterology
Experts in St. Louis, MO: Specialists in Gastroenterology
Experts in St. Louis, MO:

Personalized, Around-The-Clock Treatment By Board-certified Physicians
Your gastroenterology needs are at the forefront when you choose our team at Specialists in Gastroenterology. We’re a network of skilled and experienced GI professionals who are dedicated to getting you connected with the right resources and treatments. Our team looks forward to becoming a trusted source for your GI needs throughout the St. Louis, MO area. Improve your digestive health today and schedule an appointment.
OUR SERVICES
Anorectal Manometry
Capsule Endoscopy
Chronic Care Management
Colon Cancer Screening
Colonoscopy
CT Scan or CAT Scan – Computed Tomography
Endoscopic Mucosal Resection
Endoscopic Retrograde Cholangiopancreatography
Endoscopic Ultrasound
Enteroscopy
Esophageal Dilation
Esophageal Manometry (Motility Study)
Esophagogastroduodenoscopy (EGD)
Feeding Tube Insertion (PEG)
FibroScan®
Flexible Sigmoidoscopy
Hemorrhoid Banding
Infusion Therapy (IV Infusion)
Virtual Telemedicine
Services
Anorectal Manometry
Capsule Endoscopy
Chronic Care Management
Colon Cancer Screening
Colonoscopy
CT Scan or CAT Scan – Computed Tomography
Endoscopic Mucosal Resection
Endoscopic Retrograde Cholangiopancreatography
Endoscopic Ultrasound
Enteroscopy
Esophageal Dilation
Esophageal Manometry (Motility Study)
Esophagogastroduodenoscopy (EGD)
Feeding Tube Insertion (PEG)
FibroScan®
Flexible Sigmoidoscopy
Hemorrhoid Banding
Infusion Therapy (IV Infusion)
Virtual Telemedicine
LATEST RESOURCES

Primary Biliary Cholangitis (PBC) in St. Louis, MO
What is PBC (primary biliary cholangitis)? Primary biliary cholangitis (PBC), once known as primary biliary cirrhosis, is a rare chronic liver condition. PBC is a degenerative immune system condition that steadily damages the bile ducts (called the intrahepatic bile ducts) in your liver. Bile helps digest fats and transports away bad cholesterol, impurities, and bilirubin.
Read MoreReviews
Very professional and puts the patients first
I was very pleased with Dr Root and his staff. He was very thorough and spent time with me asking questions and recommending tests that were appropriate for my condition. They made me feel comfortable showing compassion and concern. I am very happy that I was referred to Dr Root!
All personnel from office staff to nurses to technicians were nice and helpful. Nice facility even though it’s an hour from our house. Dr Weinstock is especially caring and competent.
staff was friendly and made me feel very comfortable. easy and quick procedure. I suggest you wear socks. It is chilly in there.
Very easy and efficient. Staff was great. I was well informed, comfortable, and treated like my time was as important as theirs. Thank you.
Thank you to the entire Staff. I was so nervous but they made me so comfortable. Dr. Weinstock was Wonderful. I will definitely recommend him to all my Friends.
Dr. Banergee and his staff are excellent! The doctor explains everything on the level that a patient can understand and is of course very friendly. His staff is also very accommodating and friendly. Been very happy with them for all my G.I. needs, and I have plenty!
Love Doctor Banerjee. Listens to everything I ask him with a solution. All the office people are awesome.
Nurse practitioner pibi- he is excellent
Dr. Weinstock and his staff are very pleasant. Dr. Weinstock explained everything that I needed to know very clear. I would highly recommend Dr. Weinstock.
Very professional and kind, I would highly recommend Dr. Singh.
Contacted Advanced Endoscopy Center to make an appointment for my 10-year follow up colonoscopy. Dr. Steven Fern performed my prior colonoscopy procedures. Dr. Erik Thyssen attempted 1st Day and performed my most recent colonoscopy procedure on the 2nd Day due to my cleansing being incomplete on Day 1. From scheduling to Day 1 and Day 2 Receptionist (Donna) to Pre Op Staff (Day 1 Emily and Andrew) and Day 2 (Ki, Marissa and Jody), OR Staff (Day 1 ?) and Day 2 (Emily, Tabie, and Wit), Recovery Staff (Day 1 ?) and Day 2 (Paula) and Day 1 and Day 2 (Dr. Thyssen), the entire staff were all extremely friendly, professional, and communicated how to successfully complete the procedure. I continued my cleansing with additional materials provided by AEC and with nausea prescription from the pharmacy. The 2nd Day Procedure went extremely well, and in 10 years, I will schedule another appointment with Dr. Thyssen. Thank you for your excellent service.
Very professional and through. It’s a very efficient place. This was my third procedure using Dr Singh.
Outstanding attention to details and great communication! And the medical advice was spot on!
Dr. Thyssen was terrific. Very helpful and am confident in his care going forward.
Dr. Singh is always caring and a good listener. I feel I’m in good hands.
I was very pleased with my appointment with Dr Singh. She was very thorough, asked several questions, and made a recommendation. She seems to be a very caring, competent doctor.
Long-time patient. Dr. Weinstock is tops in his field, thorough, congenial and caring.
This clinic should boast about patients being top priority. All the staff are so helpful. Dr Thyssen is one of the best doctors I’ve ever seen. He takes the time to listen to you and will work with you to insure you are knowledgeable and comfortable with what needs to happen.
This was a great experience of something no one likes to do. The prep for my colonoscopy was comparatively easy and the treatment by each and every person on the staff was sympathetic and understanding.