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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
I felt very comfortable with my team. They explained the process. & I woke up. Well, it felt that easy(not a great time.)
Excellent pre-procedure instructions and an efficient, attentive, caring staff.
The staff was friendly and professional.
I was pleasantly surprised how well everything went. I was particularly appreciative of how well I was treated by every person that I interacted with from scheduling to post procedure. I would highly recommend this Dr. and this office!
Dr.Weinstock treats the whole person not just the symptoms. He asks questions and then listens. He is very involved in getting a person well. Discuss your health with him knowing things change as we age. Stay involved with your health. He does.
I have gone to him for over thirty years. He got me through PTSD when a family member committed suicide. He truly cares about his patients and their families.
I have gone to him for over thirty years. He got me through PTSD when a family member committed suicide. He truly cares about his patients and their families.
I have had Crohn’s disease for 30 years and consistently and regularly get colonoscopies. The center that is a part of G.I. associates is wonderful. The staff is knowledgeable. They run a very efficient center. I highly recommend.
I got a phone call immediately this morning to make an appointment. The person I spoke with was courteous and very nice. Looking forward to meeting my new GI doctor and their team.
Edit: my doctor and the surgery team are the BEST. Very friendly, but I recently had a problem with a "manager", Daria. She was extremely rude, condescending, and assumed everything I was saying was wrong about a conversation that she was not even there for.
I am switch my rating to 4 star because of the way I was treated by this individual. She does not deserve this job if she is going to treat patients this way, and after my final appointment in a week, I will no longer be associating myself with this entire office. I also recorded a large portion of the conversation, that I would like to bring to the actual management team who can listen to me problem without interrupting me MULTIPLE times.
Edit: my doctor and the surgery team are the BEST. Very friendly, but I recently had a problem with a "manager", Daria. She was extremely rude, condescending, and assumed everything I was saying was wrong about a conversation that she was not even there for.
I am switch my rating to 4 star because of the way I was treated by this individual. She does not deserve this job if she is going to treat patients this way, and after my final appointment in a week, I will no longer be associating myself with this entire office. I also recorded a large portion of the conversation, that I would like to bring to the actual management team who can listen to me problem without interrupting me MULTIPLE times.
This was my first procedure at the practice. I found everyone very friendly and nice. The nurses in prep were excellent! Dr. Banerjee performed a colonoscopy & endoscopy. All well!
I was very impressed with Dr. Root. He listened to my symptoms, asked good questions, and explained carefully how we were going about trying to get an answer for my sharp upper right abdominal pain. He suggested a couple of different avenues, and I asked what we would do if those didn’t tell anything. He smiled and said “Keep looking!” That was a great relief to me as I kept hearing from others that no one could find anything. Thank you Dr. Root!
Very good Will continue using Dr Thyssen.
The staff was very caring. Made me very comfortable. Let me know what was going on from start to finish.
Dr. Banerjee listened to my concerns and was very thorough addressing my issue. His staff was professional and courteous.
The clinic was well kempt.Dr. Singh was very attentive and helpful.I give her a A+.
Wonderful experience. Friendly staff.
I just met Dr. Banerjee so I haven't had a procedure yet. With my diabetes it's going to be a little difficult to prepare for it. I'm adjusting my meds for several weeks to comply. We will see how it goes.
Dr. Singh and the staff made me feel very comfortable with procedure. All my questions were answered. The best nap I ever had!
I thought the Dr..was very personal . However at the first visit we opted to wait 6 mo’s to address at a later date. My stomach pain and committing had subsided by the time I was able to see Dr. Root. He did suggest a scope into my stomach. My feelings is if it’s not broke don’t fix.
Great Dr., she has always taken her time and ask if I have any questions! She has great bed side manner and speaks in simple terms everyone can understand!
Everything was done very professionally and explained thoroughly. I would recommend Dr. Weinstock to anyone and the nurses were very helpful and caring
Extreme personalized service. Dr Singh had reviewed my file before the appointment and was knowledgeable of my medical history. I was able to discuss without having to repeat past events. She is kind and caring. Office visit was on time, no waiting to be seen. Highly recommend!