Dr. Stephen H. Williams is an independent family medicine physician in solo practice based in Omaha. He was instrumental at the inception of MIPPA and has served as its President since 2018. As an independent physician, Dr. Williams is deeply committed to supporting and advancing independent medicine. He remains actively engaged, lending his expertise in healthcare and leadership to strengthen the organization and further its mission. 

Tammy Hennings joined MIPPA in July 2020 as the Operations Specialist and was appointed Executive Director in November 2024. She brings over 20 years of experience in independent practice management, having previously served as a practice administrator. In her role, Tammy provides strategic leadership and operational oversight to support MIPPA’s mission and its members. She is committed to delivering exceptional service and fostering strong professional relationships within the independent medical community.

Maria joined MIPPA in January 2025 as the ACO Nurse Manager. She brings years of experience in pediatrics and hospice care, which she now applies to help independent clinics deliver high-quality, coordinated care. Maria earned her Bachelor of Science in Nursing from Grand View University in Des Moines, Iowa, and is dedicated to fostering strong provider relationships that prioritize patient health and well-being.