Arun Mathews, MD. CMO of Acute Services and CMIO of Medical Center Health System (Odessa, Texas). In 2001, Dr. Mathews received his medical degree from Dublin-based Royal College of Surgeons in Ireland. After graduation, he completed his residency in internal medicine at Baltimore-based Good Samaritan Hospital. He has held the CMO position at the 402-bed Level II trauma center since August 2015 and the CMIO position since January 2011.