Online Registration

For patients already scheduled, save time at your appointment by completing our registration forms prior to your visit! Please fill out and submit the appropriate form for your appointment location. Unsure where you’re headed? Call our office—314-529-4900.


Gateway GI Office Paperwork

121 St. Luke’s Center Drive, Ste. 406 Chesterfield, MO 63017

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Gateway Endoscopy Center

12855 N. 40 Dr. Suite 150 Saint Louis, MO 63141

Colonoscopy (SuPrep – Preferred Prep)
Colonoscopy (Golytely – Secondary Prep)
Flexible Sigmoidoscopy

St. Luke’s Procedures

East Medical Building, 232 South Woods Mill Road, Chesterfield, MO 63017

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St. Louis Multispecialty Surgery Center

884 Woods Mill Road, Ste 100, Ballwin, MO 63011

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Gateway GI Office Information Update

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IMPORTANT NOTE: If you will be undergoing a “screening colonoscopy”, meaning that you presently don’t have any GI symptoms, please be aware that it during the procedure a polyp is removed or a biopsy is performed, some insurance carriers will no longer consider this a screening procedure and may charge you a higher rate. We recommend that you check with your insurance company prior to undergoing the procedure to determine if your benefits change based on whether a polypectomy or biopsy is performed during the colonoscopy!

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