
Medical School
Dr. Joseph McNelis is a General Physician and Gastroenterologist in O Fallon 63368, O Fallon MO and has an experience of 36 years in these fields. Dr. Joseph McNelis practices at in O Fallon 63368, O Fallon MO. He completed Medical School from New York Medical College in 1987. Some of the services provided by the doctor are: Bile Duct Obstruction,Intestinal Ulcer,Hepatitis B Virus Screening,Malnutrition and Chronic Gastritis etc.
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137 Surgeries & Treatments

Wireless pH Testing

VAP Lipid Testing

Ultrasound, Esophageal

Ultrasound, Endoanal
Sigmoidoscopy
Screening Colonoscopy

Rigid Proctosigmoidoscopy

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

pH Probe

Manometry