Dirk Davidson, M.D.
President & Co-Founder

Dr. Dirk Davidson has nearly 20 years in the oncology field, first working with a large group practice and then in 2004 starting a solo practice, Tennessee Plateau Oncology.  Shortly after his practice opened, he co-founded Oncology Partners based on the practice’s billing and management success.  Dr. Davidson enjoys the unique opportunities and challenges his practice brings, and welcomes the chance to work with patients from all over the United States.

Dr. Davidson received a bachelor degree from Dartmouth College and his doctorate of medicine from West Virginia University, and he completed his medical residency with The Medical University of South Carolina.  He is a member of the Tennessee Medical Association and serves as secretary for the Cumberland County Medical Society.

Kevin Combs
Vice President & Co-Founder

Kevin Combs has more than a decade of medical billing and practice management experience in the oncology industry.  He co-founded Oncology Partners in 2004 with Dr. Dirk Davidson after helping establish billing and practice procedures at Tennessee Plateau Oncology.  Kevin attends numerous industry seminars to stay abreast of the latest insurance and Medicare billing codes and Oncology Partners’ clients benefit from his dedicated oncology expertise. 

Prior to co-founding Oncology Partners, Kevin worked for a large oncology consulting company and several small oncology practices.  He currently serves as co-chair of the Administrator's Network with the Tennessee Oncology Practice Society.