Dr. John Tyler Nathanson
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Dr. John Tyler Nathanson is a Internal Medicine and Gastroenterologist in Midtown, New York and has an experience of 10 years in these fields. Dr. John Tyler Nathanson practices at ColumbiaDoctors - Midtown in Midtown, New York,ColumbiaDoctors Dentistry - Midtown in Midtown, New York and Columbia Medical Center For IC in Midtown, New York. Some of the services provided by the doctor are: flexible sigmoidoscopy,Constipation,ANEMIA,Endoscopy and Rectal Prolapse etc.
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74 Surgeries & Treatments
PEPTIC ULCER
Liver Damage from Alcohol
Gastrointestinal Malabsorption
Esophageal Motility Disorders
Esophageal Achalasia and Cardiospasm
Alcoholic Cirrhosis
Rigid Proctosigmoidoscopy
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Proctosigmoidoscopy
Manometry
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