Dr. Wallen Chan
Medical School
Dr. Wallen Chan is a Gastroenterologist in Staten Island 10310, New York and has an experience of 36 years in this field. Dr. Wallen Chan practices at Sisters of Charity Medical Center in Staten Island 10310, New York,Richmond Surgical GPS PC in Staten Island 10314, New York and Richard A. Fazio MD PC in Staten Island 10314, New York. He completed Medical School from City University of New York School of Medicine in 1989. Some of the services provided by the doctor are: Noninfectious Gastroenteritis and Colitis,Non-Neonatal Jaundice,Nausea,Diffuse Esophageal Spasm and Gastroesophageal Reflux Disease (GERD) etc.
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131 Surgeries & Treatments
Wireless pH Testing
VAP Lipid Testing
ULTRASOUND
Sigmoidoscopy
Screening Colonoscopy
Rigid Proctosigmoidoscopy
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Proctosigmoidoscopy
pH Probe
Pancreas Surgeries
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