
Dr. Michael Ansstas is a Allergist/Immunologist and Gastroenterologist in Worcester 1655, Worcester MA and has an experience of 2026 years in these fields. Dr. Michael Ansstas practices at UMass Memorial Children's Medical Center in Worcester 1655, Worcester MA and Mercy Clinic Digestive Disease in Saint Louis 63141, St Louis MO. Some of the services provided by the doctor are: Infectious Diarrheal Disease,Cirrhosis,Nausea,Gastritis and Constipation etc.
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121 Surgeries & Treatments
Skin Testing and Screening
Sigmoidoscopy

Rigid Proctosigmoidoscopy

Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)

Radioallergosorbent Test

Patch Testing
Pancreas Surgeries

Manometry

liver biopsy
flexible sigmoidoscopy