Division of Gastroenterology

Philip Hanna, MD

Philip Hanna, MD
Division Chief

What do we do? We diagnose and treat digestive system disorders affecting the esophagus, stomach, small and large intestines, rectum, liver, gall bladder and pancreas. At National Jewish Health, we treat many chronic diseases that have secondary symptoms affecting the digestive system. For example, GE reflux can occur in up to 80 percent of asthma patients. There are also many gastrointestinal issues associated with food allergies and autoimmune diseases.

Why National Jewish Health? We partner with other specialty areas at National Jewish Health to determine interrelated causes of uncontrollable asthma and maximize GI therapy for improved health. The program is also concerned with the importance of colon cancer screening to ensure that this preventable disease is detected early.

Faculty & Staff


  • Colon Cancer Screening
  • Colonoscopy
  • Esophageal Dilation: Conscious sedation and propofol with anesthesia is offered for patient comfort and safety.
  • Esophageal pH Testing: Bravo radio transmission probe and dual channel pH with impedance
  • Hemorrhoid treatment: Infrared cautery (IRC) and banding
  • Imaging: CT, Ultrasound, nuclear medicine scans, PET scanning
  • Percutaneous Gastrostomy Tube (PEG) Placement
  • Upper Endoscopy

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