The Peak Team Home > Our Team Your Health Is Our Mission Meet Our team Meet the faces of The Peak Dermatology team. Each and every member of our team is a vital part of the success of our patients. We can’t wait to get to know you and and help you with this journey in reaching your Peak Beauty and Peak Confidence. Meet the AZ Team Meet the CA Team Our Leadership Team Christoper Rex, M.D. Chief Executive Officer Chief Medical Officer Nnenna Rex, Pharm D Chief of Staff Director of Human Resources Chika Ugorji, M.D. Chief Financial Officer Compliance Officer Kami King Chief Operations Officer Marketing & Analytics Director Sarah Roberson Regional Director of Operations Sarah Rush Director of Aesthetics Operations, Arizona April Matthews Practice Administrator, California Shannon Torres Director of Clinical Operations, CA