John Koster, MD 

CEO emeritus

John Koster, MD, serves as the CEO emeritus of Providence Health & Services. He announced his retirement in early 2013 and shortly thereafter was appointed CEO emeritus.

Dr. Koster joined Providence as chief medical officer in April 1997 and held numerous roles in system operations until he became president and chief executive officer in 2003. He was selected as one of Modern Healthcare magazine’s 50 Most Influential Physician Executives in 2012. Prior to joining Providence, Dr. Koster served as senior vice president of VHA, Inc. in Irving, Texas, a nationwide network of health care organizations and physicians. He has also held senior leadership positions at Presbyterian Healthcare Services in Albuquerque, New Mexico and at Rocky Mountain Healthcare Company in Denver.

His clinical practice was in emergency medicine and internal medicine. He is board certified in internal medicine.

If you are a member of the news media and would like to speak with Dr. Koster, contact Colleen Wadden at or Call: 425-525-3131.