
Medical Registration Verified
Dr. John Siegfried is a Gastroenterologist,Hepatologist and Internal Medicine in Aurora 60506, Aurora IL and has an experience of 46 years in these fields. Dr. John Siegfried practices at Dreyer Medical Group LTD in Aurora 60506, Aurora IL and Hankes Clinic Pharmacy in Aurora 60506, Aurora IL. Some of the services provided by the doctor are: Anal or Rectal Pain,Gas-Bloat Syndrome,Ileus,Esophageal Varices and Noninfectious Gastroenteritis and Colitis etc.
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67 Surgeries & Treatments

Pyloromyotomy
Endoscopy
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy

Vomiting Disorders
Viral Hepatitis

Viral Enteritis

Vascular Insufficiency of Intestines
Unexplained Weight Loss
Ulcerative colitis

Stomach and Small Intestine Cancer