MSN, MHA, RN
Chief Executive Officer
Mr. Deller joined Landmark Hospitals in 2016 as the Market Chief Executive Officer in Missouri. Based in Columbia, Missouri, Mr. Deller brings over 25 years of experience in various healthcare service lines and leadership roles.
In 1988, Mr. Deller began his healthcare career as the founder and President of Deller Enterprises, a healthcare provider specializing in home health, outpatient psychiatric services, and physician practice development. Mr. Deller has worked for several large nationally recognized acute and post care healthcare organizations. During his tenure, Mr. Deller has received several service awards including Chief Executive Officer of the Year, Rising Star of Year, and Most Improved Hospital.
Mr. Deller attributes his success to embracing and promoting an open, honest, and transparent culture of teamwork, support, mentoring, praise, and recognition.
Administrative Chief of Staff
Dr. Clapper graduated from the University of Missouri-Columbia School of Medicine in 2002. He completed a residency in Anatomic and Clinical Pathology at the University of Iowa in Iowa City, IA and a fellowship in Surgical and Medical Pathology at the Mayo Clinic in Rochester, Minnesota. Dr. Clapper is board certified in Anatomic and Clinical Pathology and a fellow of the American Society for Clinical Pathology. He began his employment with Boyce and Bynum in June 2008 and currently oversees the division of Anatomic Pathology at Boone Hospital Center. He also has a teaching appointment in the Department of Pathology at the University of Missouri-Columbia and sits on the Board of Governors for the Missouri Medical Alumni Association. Dr. Clapper has been a member of the Medical Executive Committee at Landmark Hospital since its opening.