O’FALLON, Ill. – HSHS Medical Group is pleased to welcome Dr. Michael Ansstas to HSHS Medical Group Multispecialty Care at 3 St. Elizabeth Blvd., Suite 5000 in O’Fallon. Dr. Ansstas is a board-certified gastroenterologist with advanced training interventional gastroenterology. He specializes in diagnosing and treating a wide range of digestive conditions, including disorders of the gastrointestinal tract, liver and pancreas. Dr. Ansstas is known for his patient-centered approach, focusing on clear communication and individualized care. He earned his medical degree from the University of Tishreen School of Medicine in Latakia, Syria. Dr. Ansstas completed his residency in internal medicine and fellowships in allergy and immunology at Saint Louis University Hospital in Saint Louis. He furthe

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