Mercy Gastroenterology - Mercy Hospital
Gastroenterology • Clayton, MO
About
Summary: - Mercy Hospital St. Louis (St Johns Mercy Medical) is a leading hospital in St. Louis, MO, part of Mercy Health system, offering comprehensive care with private rooms and nationally recognized services. - It is affiliated with Mercy Hospital St. Louis and operates from Cuba, MO and Saint Louis, MO with a focus on general and specialty medical care. - The organization is active in the healthcare sector (not an independent gastroenterology practice) and has multiple contact numbers for patient services. - Recent activity highlights include expansion of pediatric and telehealth initiatives, and collaborations in the Mercy network that broaden access to care. Notes in relation to your query (Mercy Gastroenterology - Mercy Hospital Clayton): - The provided information describes Mercy Hospital St. Louis, not Mercy Hospital Clayton or a dedicated Mercy Gastroenterology practice in Clayton. - If you’re seeking gastroenterology services specifically at Mercy Hospital Clayton, this page does not confirm a Clayton gastroenterology department; you may want to search for Mercy Clinic Clayton or Mercy Hospital Clayton gastroenterology services directly, or contact Mercy patient services to confirm location-specific GI care.
Clinic Type
Gastroenterology
Address
Mercy Hospital St. Louis, 615 S. New Ballas Rd, Suite 1200, St. Louis, MO 63141
Phone
314-387-2321
disabilityaccommodations@mercy.net
Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
Technology & Equipment
Insurance & Payment
—
Hospital-based services may be billed separately from physician services; check with insurance carrier to verify coverage.
Languages Spoken
—
FAQs
What’s a hospital-based service?
Hospital-based services are provided by Mercy Hospital St. Louis and may be billed separately from physician services; check with your insurance carrier to verify coverage.
Colonoscopy Instructions
Download Review these instructions at least seven days before your colonoscopy.
GI Procedure FAQs
Download Get answers to frequently asked questions before colonoscpy/endoscopy procedures.
Social Media
Photos






What Patients Say
Overall sentiment across review platforms: mixed
- Vitals and DocSpot: 4.6/5 (Dr. Michael Cleary) and 4.96/5 (Dr. Katie Sue Schroeder) (17 and 68 ratings respectively)
Patients praise
- High patient satisfaction with individual physicians (e.g., Dr. Cleary, Dr. Schroeder)
- Physicians described as patient, professional, and knowledgeable
- Positive experiences with clinical staff in specific instances
Common complaints
- Difficulty scheduling appointments and reaching staff by phone
- Perceived lack of attentiveness or listening to patient concerns
- Issues with billing, insurance claims, and communication regarding medical records
- Reports of unprofessionalism and administrative overbooking
"Dr Tiriveedhi is wonderful. I appreciate her patience and knowledge."
— LocalityBiz user review"Absolutely awful. Good luck trying to make an appointment. They hardly ever pick up the phone, and when they do, they make it as difficult as possible."
— LocalityBiz user review"He is THE best doctor I have seen. Spends as much time as is neded to answer questions. Never in a hurry,even though he's extremely busy."
— Vitals user review (Dr. Michael Cleary)Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Mercy Southeast Offering AI-Assisted Colonoscopies to Elevate Patient ... — Apr 10, 2026
- Mercy Southeast introduces FibroScan Technology for faster liver disease detection - KBSI FOX23 News Cape Girardeau News | Paducah News — Dec 8, 2025
- Giao Vuong, MD - St. Louis, MO — Jul 25, 2025
- Dr. Elizabeth V. Marsicano, MD - Gastroenterologist in Lake St Louis, MO — May 14, 2026
- Mercy opens three new specialty clinics in Sikeston, adding ... — Jun 9, 2026
Information sourced from the clinic's website as of July 11, 2026.
More gastroenterology clinics in Clayton
Gateway Gastroenterology is a private medical practice (founded 1985) offering gastroenterology and hepatology services. Based in Chesterfield, MO, with multiple US offices (including Saint Louis area) and a presence in the Philippines. They provide expert consultations from board-certified gastroenterologists and advanced nurse practitioners, focusing on digestive health. The practice employs about 9 people and uses eClinicalWorks for its tech stack. Service areas include diagnostic consultations, GI/hepatology care, and related digestive health services. Contact options include multiple phone numbers and the website gatewaygi.com.
Summary: Esse Health is a private medical practice company headquartered in St. Louis, MO, with 4 U.S. offices (all within the St. Louis area). It operates under Surround Care and offers patient portals, insurance information, and a range of family medicine services, employing about 252 people. Key contact: main phone lines 1-314-919-1000 or 314-851-1000; corporate location at 12655 Olive Blvd, St. Louis, MO 63141. The firm lists job openings for Nurse Practitioners and Physician Assistants in multiple clinics (Hazelwood, Florissant, Richmond Heights/Clayton, Watson Primary Care). If you’re specifically seeking Esse Health Corporate in Clayton, Clayton-area roles appear to be managed from the Clayton cluster (Richmond Heights/Clayton job postings) within the St. Louis metro footprint.
Comparing your options?
See other gastroenterology clinics in Clayton, or search the full directory by insurance, ratings, and more.

