Dr. Joshua Renken, a central Illinois native, attended Eastern Illinois University and then the University of Illinois at Chicago where he received his DDS degree. Following associate work in Chicago, Dr. Renken moved to Springfield and opened his first practice, Renken Dentistry, in 2003.
In his commitment to organized dentistry, Dr. Renken just finished his tenure as 2014-2015 President of the GV Black Dental Society. At a state level, Dr Renken is a member of the communications committee of the Illinois State Dental Society. Dr Renken also holds professional memberships in the Academy of General Dentistry, a Fellow of the International College of Oral Implantologists, and as a member of the Chicago Dental Society and the American Dental Association.
Dr. Renken is deeply dedicated to our community, specifically the success of children and families facing the challenges of developmental and neurological differences. He has been a long time member of the board of The Hope Institute for Children and Families and currently serves the organization as chairman of the board of directors. Renken Dentistry has been a pilot site for Hope’s Vocational Program. This partnership has made it possible for the dental practice to meaningfully employ and support a team member with developmental differences. Dr. Renken is also a member of the Ambassadors of Hope, a volunteer group of business leaders who serve as advocates for The Hope Institute and the children and families it serves. Dr Renken is a member of the Springfield Chamber of Commerce, Chatham Chamber of Commerce, and Local First Springfield. He most recently joined the Young Philanthropists, a group organized by the Community Foundation of the Land of Lincoln.
Over the course of the last five years, Dr. Renken established and owns Renken Properties LLC — a properties company, PracticeWater — a practice management services company, and a second dental practice, schön dental. His web-based patient subscription management platform, Health Assurance Plan, is a member of the Springfield startup incubator “Innovate Springfield”. Dr. Renken most recently added author to his resume, with his first book, “Dr. Fries-With-That”. His goal is to help dental teams create greater health for their patients, team members, and practices.
Dr. Renken and his wife, Leigh, live in Springfield with their four children, Reilly, Miles, Oscar and Lorelai.
Dr. Cowan grew up in small town in south Texas where she spent much of her childhood working with her father in his mechanic and wood shop. She attended Texas State University and then University of Texas Health in San Antonio where she received her DDS degree. During her time at university, Dr. Cowan provided dental care on eight mission trips to south Texas. Before coming to Renken Dentistry, Dr. Cowan spent her summer working to provide dental care for underserved adults in San Antonio.
In keeping with her belief in continual learning and organized dentistry, Dr. Cowan has active professional memberships in the Academy of General Dentistry, the American Dental Association, Texas Dental Association, and the Capital Area Dental Society.
As a Terry Scholar alumnus, Dr. Cowan believes in giving back to her community and helping the underserved receive dental care. Her passion lies in working with marginalized youth and mentoring Texas’ future college graduates.
When not providing dental care or spending time with friends and family, Dr. Cowan can be found hiking, swimming, or throwing a ball for her golden retrievers at a local dog park with her partner. When the weather isn’t so favorable, she explores Austin’s local restaurants or enjoys a cup of tea and a good book.