Management Team


Mark H. Selman

Principal

Mark Selman, Principal at Tall Tree Administrators, is a seasoned professional who has played a pivotal role in establishing and expanding one of the region's premier third-party administration organizations. With a proven track record of success, Mark has been instrumental in shaping and developing key functional departments within the TPA, including reporting systems, stop-loss reimbursement, account services, and, notably, broker relations and sales.

Mark's exceptional rapport with the brokerage community, combined with the robust TPA systems he has helped implement, has positioned Tall Tree Administrators as the preferred choice for prestigious employers across Utah, Idaho, and Arizona seeking secure, reliable, and cost-effective health benefits solutions. Under his leadership, Tall Tree has earned recognition as the Best TPA in Salt Lake for three consecutive years by the National Commerce Association.

Prior to his tenure at Tall Tree Administrators, Mark dedicated a significant portion of his career to managing and organizing physician networks on a national scale. His experience spans the establishment of single-specialty risk networks, industrial clinics, and comprehensive regional networks offering a full spectrum of professional, facility, and ancillary care services.

Mark holds a Master of Health Administration Degree from St. Louis University School of Public Health, underscoring his commitment to excellence and expertise in the field of healthcare administration.

John Marston

Principal

John Marston is a visionary leader with over four decades of experience in transforming the landscape of the Insurance, Professional Employer Organization (PEO), Business Process Outsourcing (BPO), and Human Resource Outsourcing (HRO) industries. Since 1976, John has been at the forefront of innovation, owning and managing his own insurance agency, brokerage, PEO, Staffing Company, and Insurance/Captive Program Platforms.

Today, as a consultative risk manager for Free Market Administrators, LLC, located in Addison, Texas, John continues to shape the industry. FMA specializes in managing and administering life, accident, and health programs for numerous markets seeking to revolutionize their traditional insurance risks internally through self-insurance, innovative claims mitigation programs, and/or captive risk management solutions.

In his role, John collaborates closely with employers, insurers/captives, associations, affiliations, and provider groups to develop tailored strategies that address their unique needs and objectives. With a focus on disruption and innovation, John remains dedicated to driving positive change and delivering exceptional value to his clients in an ever-evolving marketplace.