Parkinson and his wife, Stacy, have been involved in several campaigns to benefit non-profit and public organizations. The Parkinsons led a $4.29 million fundraising campaign for Sunflower House in 2002. They led another fundraising drive for SAFEHOME in 2005. Together with two other couples, the Parkinsons co-chaired the University of Kansas' fundraising efforts from 2012 to 2016. $1.5 billion was raised under their leadership. As of 2020, Parkinson is president and chief executive officer of the
American Health Care Association (AHCA) and National Center for Assisted Living. (NCAL) The group represented about 9,000 facilities when Parkinson joined the association. Parkinson helped heal a major rift in the AHCA/NCAL and brought numerous providers who left to form their own association back into the fold. As of 2020, AHCA/NCAL has about 14,000 members. As president and CEO of AHCA/NCAL, Parkinson was recognized by CEO Update as a "Top Association CEO" of 2013. He was named to Modern Healthcare's "100 Most Influential People in Healthcare in 2015 and 2020. Parkinson has been recognized as a "Top Lobbyist" by
The Hill in 2013 and over the next seven years. In February 2024, he announced that he would be retiring from his post as president and CEO of AHCA/NCAL, effective January 2025. ==Electoral history==