Dr. Mark G. Griffin has been in practice since 1990. Dr. Griffin is a graduate of the University of Missouri-Kansas City School of Medicine. He completed his Residency at the University of Colorado Health Sciences where he served as a Clinical Instructor, Staff Physician Specialist, and Medical Director at a walk-in Clinic in Denver General Hospital. Dr. Griffin completed his Fellowship at the University of Kansas Medical Center. Dr. Griffin is Board Certified in Gastroenterology by the America Board of Internal Medicine.