Dr. Charles has a passion for diagnostic musculoskeletal ultrasound and has done extensive in-person training with mentor Jeannine Noble PT, RMSK from the WCUI School Of Medical Imaging. Also, in August 2022 he trained with a world-renowned leading expert in diagnostic musculoskeletal ultrasound Dr. Jon Jacobson MD, RMSK at the Gulf Coast Ultrasound Institute in Florida. Additionally, Dr. Charles passed the RMSK exam in November 2022 earning the RMSK credential which is the highest certification of proficiency in diagnostic musculoskeletal ultrasound. As of March 2023, Dr. Charles became a faculty member at Gulf Coast Ultrasound Institute In Florida and assists in teaching on-site in St. Petersburg Florida at courses.

Dr. Stevens also holds Titleist level 1 and 2 certifications to rehab golfers as well as a certification from the American Institute of Balance to treat individuals suffering from Vertigo and Vestibular issues.

Additionally, Dr. Charles has completed over 1000 EMG and nerve conduction studies and has graduated from one of two residency programs in the country that train Doctors of Physical Therapy. He currently performs EMG and nerve conduction studies in New York and Pennsylvania in physician offices that include the following specialties: neurosurgery, vascular surgery, physiatry, and internal medicine. As of fall 2026 Dr. Charles will be teaching an elective at his alma mater, Misericordia University, on introduction to EMG and nerve conduction studies.