He attended the University of Southern California (USC), Keck School of Medicine and subsequently trained at Good Samaritan Hospital and Stanford Hospital & Clinics for residency. Dr. McKenna's clinical interests include thoracic outlet syndrome, esophageal cancer, and emphysema. Patient ratings for Dr. McKenna average 4.0 stars out of 5. Dr. McKenna is in-network for Anthem, Blue Cross/Blue Shield, and Medi-Cal, in addition to other insurance carriers. He has received professional recognition including the following: Southern California Super Doctors; Southern California Super Doctors 2008; and Los Angeles Super Doctors. He is professionally affiliated with Providence Medical Institute, Providence Saint John's Health Center, and Cedars-Sinai. Dr. McKenna is open to new patients.