Meet the Doctors

Dr. Jared Stubblefield

Dr. Jared Stubblefield

Owner of Keystone Functional Medicine

  • Doctor of Chiropractic
  • 2009 Graduate of Sherman College of Chiropractic
  • Certified in Activator Technique
  • 300+ hours of post-doctorate training in car accident trauma
  • RockTape Certified Practitioner
  • Married with four children
  • Loves Baseball, especially the San Francisco Giants

Dr. Bonnie McKinley

Associate Physician at Keystone Functional Medicine

  • Board-Certified physician
  • Specialty degree in sports and musculoskeletal medicine
  • Offers regenerative techniques directed towards healing injuries
  • Member of American Osteopathic Association (AOA), American Osteopathic Association of Sports Medicine (AOASM), American Medical Society for Sports Medicine (AMSSM), and the Cellular Medicine Association (CMA)
  • Team physician for both college level and high school sports teams, most recently Millersville University (2016) and The Philadelphia Rebels-North American Hockey League Team Physician (2017)

Dr. Michael Rosenthal

Consulting Physician, Keystone Functional Medicine

  • Doctor of Osteopathic Medicine
  • Specializing in Rehab Medicine (Physiatry)
  • Graduate of Philadelphia College of Osteopathic Medicine
  • Undergraduate work at the University of Pennsylvania
  • 20+ years in examining, diagnosing and treating work injuries
  • Includes electro-diagnostic studies
  • Licensed to perform Medical Acupuncture
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