After a personal experience with a patient inspired him to make some changes, Dr. Phillip Chang worked with pharmacist Doug Oyler to initiate a small pilot study in UK HealthCare's trauma service with the goal of reducing opioid prescriptions. That small study has grown and created a "culture change" at UK HealthCare, drastically reducing the number of opioid prescriptions written and reducing high-risk opioid use by 57 percent.