Clicking on the links below will direct you to an independent physician practice website that is not hosted or maintained by Texas International Endoscopy Center.



  • Tannya Lacy, Business Office Coordinator
  • Joe Lewis, RN, BSN, Clinical Director
  • Frank Meriano, MD, Medical Director
  • Rana Pollard, Administrator

Colon and Rectal Surgery

  • Bidhan Das, MD


  • Chami Amaratunge, MD
  • Ronald Colman, MD
  • Gulchin Ergun, MD
  • Garland Gossett, MD
  • Frank Meriano, MD
  • Dang Nguyen, MD
  • Isaac Raijman, MD
  • Peter Schwarz, MD


  • Andrea Duchini, MD
  • Joseph Galati, MD