Daniel M. Adair, MD
1953 - 2015

On Monday, September 7, 2015, officials at Springfield Clinic learned that Daniel M. Adair, MD, veteran orthopedic surgeon with the medical group, had unexpectedly passed away from a heart attack. 

“All of us at Springfield Clinic are deeply saddened by the untimely passing of Dr. Adair. He was a skilled surgeon, an energetic leader, a tireless fitness advocate, but most importantly, a loving husband, father and grandfather,” said Mark Greatting, chairman of Springfield Clinic’s Board of Directors and orthopedic colleague. “His death is a tragic loss for his family, friends, our community and Springfield Clinic.”

Having joined Springfield Clinic’s Orthopedic Department in 1984, Dr. Adair was an influential figure in the orthopedic and sports medicine community. He specialized in the surgical treatment of sports-related injuries, including ACL reconstruction and treatment of cartilage injuries, as well as total knee and total hip replacement. 

Dr. Adair graduated from SIU School of Medicine in Springfield and completed his Orthopedic Surgery residency at Bowman Gray School of Medicine of Wake Forest University in Winston-Salem, North Carolina. He maintained board certification in Orthopedic Surgery from the American Academy of Orthopedic Surgeons and was affiliated with numerous medical and academic organizations, including the International Cartilage Repair Society, International Society of Arthroscopy and American Orthopedic Society for Sports Medicine. 

Over the past thirty years, he served in a variety of physician leadership roles, including membership on numerous committees that included Quality Management, Service Improvement and Marketing & Business Development. He was a member of Springfield Clinic’s Board of Directors from 1990-1992 and has been chairman of The Orthopedic Group at Springfield Clinic since 2010. 

“Dr. Adair practiced medicine like he lived — with great passion for excellence,” added Randy Bryant, Springfield Clinic’s chief executive officer. “He has been an integral part of Springfield Clinic and the medical community for so many years that his absence leaves a palpable void.”

David R. Hoelzer, MD
1953 - 2013

On Sunday, December 29, 2013, David R. Hoelzer, MD, specialist in Endocrinology and member of Springfield Clinic’s board of directors passed away suddenly while visiting family in Texas. "His untimely death is a tragedy for his family and all of us at Springfield Clinic," stated Michael A. Pick, MD, chairman of Springfield Clinic’s board and colleague of Dr. Hoelzer’s since 1985. "David was a skilled physician, a passionate leader and wonderful colleague. He will be terribly missed." 

Dr. Hoelzer joined Springfield Clinic’s Endocrinology Department in July of 1985 and specialized in the prevention and treatment of diabetes. He served as his department’s chairman for many years and was instrumental in the creation of Springfield Clinic’s Diabetes Learning Center. 

Delivery of high quality health care was his passion. Most recently, he served as a member of Springfield Clinic’s Quality Management and Peer Review Committee and chaired its Research Committee. For more than twenty years, he set the clinical standards for Springfield Clinic as its medical director. He retired from that post in 2010. 

Dr. Hoelzer earned his medical degree at St. Louis University School of Medicine and completed his Internal Medicine residency at the same institution. He completed fellowship training in Endocrinology and Metabolism at Washington University School of Medicine, also in St. Louis. Dr. Hoelzer maintained board certification in Endocrinology & Metabolism, as well as Internal Medicine. 

"This is a tremendous loss, not only for his family and friends, but for the entire medical community," added Randy Bryant, Springfield Clinic’s chief executive officer. "Dr. Hoelzer has played an important role in the growth of Springfield Clinic and the advancement of quality health care throughout the region." 

His wife, Dr. Karen Hoelzer, specializes in the treatment of breast cancer at The Cancer Center at Springfield Clinic.