Request an Appointment
Leonard Weinstock, M.D.
Gastroenterologist
Request An Appointment
If you are experiencing a medical emergency, please call 9-1-1.
To schedule an appointment, please call 314-997-0554 or click the “Message Us” button located at the bottom right corner of your screen and a member of our team will contact you within 48 hours.
Board certified in internal medicine and gastroenterology, Leonard Weinstock, MD, provides compassionate care to patients at Specialists in Gastroenterology in St. Louis, Missouri.
Dr. Weinstock was born and raised in New York and moved to St. Louis in 1985. He received his medical training in Rochester, New York, and completed his gastroenterology fellowship at Washington University in St. Louis.
Dr. Weinstock’s lectures and research on diseases of the esophagus, stomach, small intestine, and colon have been presented at national and international conferences. He is actively researching the connection of the gut and small intestinal bacterial overgrowth (SIBO) with several medical problems, including restless legs syndrome and chronic pelvic pain syndromes. He presented several lectures in Oregon at the first SIBO symposium and in France at the international rosacea study group.
Dr. Weinstock provides individualized care to all adult patients with gastrointestinal disorders. His clinical practice emphasizes colon cancer screening, therapeutic video endoscopy, motility disorders, management of irritable bowel syndrome, and comprehensive management of inflammatory bowel disease. His experience in treating IBS patients who have SIBO dates back to 2000. He has expertise in the use of low-dose naltrexone, which is one of the few modalities that promote the reduction of inflammation by increasing endorphins.
Dr. Weinstock is married and has twin daughters.
Reviews
The only uncomfortable part was the prep.
The actual procedure was no problem
The actual procedure was no problem
Dr. Weinstock was friendly, patient, and thorough and listened to and responded to my concerns and questions (in addition being his usual intelligent, skilled self).
I was treated with great care by the staff at SIG. Everything about my procedure went very smoothly and professionally. I recommend this caring facility.
The office and staff settled my anxiety about my procedure the moment I walked in. The center was clean and much more cozy than a big hospital. The staff was pleasant, patient, and worked quickly. They called to check on me twice afterwards. I was very pleased with my experience.
I’m so happy to have Doctor Weinstock and his Excellent staff on my health care team.
The service that I received was so good and appreciative.
The service that I received was so good and appreciative.
Excellent. I was bleeding 4 days after a colonoscopy so called dr weinstock and at first they wanted me to go to er close to my home but then called and fit me in the schedule at mobaptist where dr weinstock did a sigmoidoscopy to see what was bleeding and found a small ulcer.
So it was a much better experience than going to er and seeing strange doctors and not knowing what they would do to check out bleeding and so forth. Dr weinstock put me sleep and there was no problem with the sigmoidoscopy fast and efficient. I felt like they took time to find out the problem and was sent home on a soft diet for a week since it did not turn out to be a polyp that needed caurterization. Thank you dr weinstock & staff at mo baptist for taking good care of me in a stressful situation
Darlene Nichols
So it was a much better experience than going to er and seeing strange doctors and not knowing what they would do to check out bleeding and so forth. Dr weinstock put me sleep and there was no problem with the sigmoidoscopy fast and efficient. I felt like they took time to find out the problem and was sent home on a soft diet for a week since it did not turn out to be a polyp that needed caurterization. Thank you dr weinstock & staff at mo baptist for taking good care of me in a stressful situation
Darlene Nichols
Dr. Weinstock bedside manner was A-1!! The staff as well. I was nervous about the procedure they were with me 100 percent. I told the staff it would be nice to have a focus point in the ceiling in the procedure room. Something like cartoons. Thank you and your staff for taking great care of me.
Dr. Weinstock is incredibly knowledgeable and amiable. He took me and my concerns seriously when other physicians had dismissed me. It is clear he has a passion for learning and I am grateful he has decided to apply that in an area that directly benefits me and others living with M.C.A.S. and am eagerly awaiting his coming documentary on the triad.
Treatment of M-CAS is his passion, and he’s highly knowledgeable in this area. He’s professional, personable, and dedicated to resolving health issues. I feel fortunate to be his patient
I've been going to Dr. Weinstock for several years now. He is compassionate and knowledgeable. The staff are amazing, they are so caring and on top of things. I would recommend him over and over again.
DR Weinstock is very thorough, everyone in the office is very helpful.
Excellent doctor! Listened to my concerns patiently with attention. I feel very confident with the treatment plan as well.
Very professional and efficient doctor and staff!
Dr Weinstock has always been respectful, never treats me like an idiot and thoroughly explains what is going on. So glad I found him.
Friendly staff, there wasn’t any wait time once signed in. Dr Weinstock was very thorough with explaining everything, he took his time listening and asking questions, a kind friendly professional. The facility was clean and comfortable.
Very professional and friendly!!!
Dr Weinstock is the consummate professional. His curiosity allows him flexibility in working 'outside the box' - helping heal those of us who had almost lost hope and hanging in with us until he finds solutions. We all can use a doctor like that, and in Dr Weinstock we have one. I am incredibly grateful that he has my back.
Professional and Courteous staff.
Staff was amazing and made sure I was comfortable
Well organized practice. I was seen on time. Dr Weinstock did not rush through the visit. He was very thorough and as a result I have a comprehensive plan that is promising to help me with my diagnosis. Highly recommend this practice and physician.