- Medical School: University of Tennessee Health Science Center
- Residency: University of Arkansas for Medical Sciences
- Fellowship: Hematopathology, University of New Mexico, TriCore Reference Laboratories
- Board Certification: Anatomic and Clinical Pathology (2016), Hematopathology (2017)
- Clinical Focus: Hematopathology and Surgical Pathology
- Primary Hospital Location: St. Thomas Midtown Hospital
- Dr. Allen enjoys the outdoors and activities involving running, biking, mountains, and water. Traveling has taken him to countries in Europe, Africa, Asia, Oceania, and South America. He is also a supporter of Tennessee Volunteer athletics.