Anna Niesen MD

Gastroenterology Physician
  • Clinic, 6400 Clayton Road, Suite 201, St Louis, MO 63117, (314) 781-8405

Conditions Treated

  • Barrett's esophagus
  • Difficulty swallowing
  • Hemorrhoids
  • Stomach inflammation (gastritis)
  • Colon cancer risk
  • Esophagus inflammation (esophagitis)
  • Pre-cancerous conditions of esophagus

Specialized Treatments

  • Diagnostic colonoscopy (with biopsy)
  • Stool test (blood)
  • Upper endoscopy (with biopsy)
  • Screening colonoscopy
  • Upper endoscopy
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