Our Team

John Stephens


banner1Mr. Stephens is one of the co-founders of Arizona Health Care and has served continuously on its Board of Directors since 1990. John is in his second stint as Chief Executive Officer for the organization and combined has over seven years in that role. In addition, he has served as the Chief Risk Officer for a large group of related Behavioral Health and Developmental Disabilities services companies based in the Carolinas; the Chairman of Virginia’s largest Community Services Board (the Virginia equivalent of Arizona’s Regional Behavioral Health Authority); and, a long time advisor and consultant to Providers, Insurance Companies, and Managed Care Organizations on compliance issues. A graduate of Dartmouth College and Harvard Law School, John proudly serves along with his son, John Franklin Stephens, as an advocate for Special Olympics.

Kevin Green

Chief Executive Officer

banner1Mr. Green came to Arizona Health Care in March of 2005 as the Director of Human Resources. Since that time he has held a variety of positions within the organization that have progressively increased in responsibility which included the position of Chief Administrative Officer. In July of 2009 Mr. Green was promoted as the VP/COO, and has held the CEO position since 2015. Mr. Green has over 35 years of management experience where previous to Arizona Health Care was involved in managing and developing a variety of businesses.

Wenli Koenig

Chief Financial Officer

As Chief Financial Officer (CFO), Wenli Koenig is responsible for all the company’s financial functions, including accounting, auditing, treasury and corporate finance.  Her career spans more than 25 years of varied experience in financial management, business leadership, corporate strategy and banking risk management.

Before joining Arizona Health Care in 2007, Ms. Koenig served as Staff Accountant, Bookkeeper and Business Owner at several businesses, including Fashion Trading Import/Export Company, Architectural Supply Distributor, a distributing infrastructure services company in both retail and construction.  Prior to that she served as Risk Management Manager for Industrial and Commerce Bank of China, which engaged in provisioning of commercial banking for midsize businesses. She earned degrees in Finance and Accounting in both China and United States.

Sarah Wilson

Compliance and Quality Officer

banner1Sarah has been with Arizona Health Care since 2001 and has over 20 years of experience in the SMI field. During that time she has held many positions with Arizona Health Care including BHT, Program Manager, SMI Clinical Coordinator, and SMI Program Supervisor. In 2014 Sarah was promoted as the Compliance and Quality Officer. In this role Sarah provides regulatory updates and training to staff, performs on-going monitoring of all areas of compliance, and acts decisively on issues of potential non-compliance.