
The South Dakota Association of Healthcare Organizations is proud to honor the late Michael G. Diedrich with the Healthcare Community Impact Award, recognizing his lifetime of service and lasting contributions to South Dakota. Mike passed away earlier this year after a courageous battle with cancer, leaving behind a legacy of leadership, generosity, and dedication to his community.
From his earliest years in Rapid City, Mike was drawn to law, civic service, and leadership. After graduating from Rapid City Central High School, he earned degrees in political science, criminal justice, and law from the University of South Dakota, followed by a master’s in public administration from Harvard University. His career included serving as Special Counsel and City Attorney for Rapid City, where he guided major initiatives such as the Rushmore Plaza Civic Center expansion, and later serving multiple terms in the South Dakota Senate and House of Representatives.
Mike’s impact was especially felt in health care. After serving on the Governing Board of Regional Health System (now Monument Health), he joined the organization in leadership roles including community relations, human resources, and governmental affairs. He also earned a Master’s Degree in Health Law from Loyola University, using his expertise to influence policy and improve health care access both in South Dakota and nationally. Among his many legislative accomplishments, Mike championed bills to support military families, streamline professional licensure, and combat human trafficking—a measure recognized by the United Nations for its global significance.
Beyond his professional achievements, Mike was a tireless volunteer and advocate for culture, wellness, and community growth. He served on more than a dozen boards, supported local youth organizations, and played a central role in creating the Hansen-Larsen Memorial Park trail system—an outdoor resource that will benefit Rapid City residents for generations.
Remembered for his humility and mentorship, Mike guided countless young leaders, often behind the scenes. He was a trusted counselor, respected statesman, and true servant leader. Most importantly, he was a devoted husband, father, and proud grandfather who always chose South Dakota as his home and the place where he could make the greatest difference.

Through this award, we honor not only Mike’s extraordinary career, but also the values he embodied—service, integrity, vision, and compassion. His impact will continue to shape health care and community life across South Dakota for years to come.






