Former Tredyffrin practitioner has been battling drug charges for more than a decade By Kathleen Brady Shea, Managing Editor, The Times Richard A. Brown, a former Tredyffrin Township physician, has been battling drug charges for over a decade. The legal travails of a Chester County family practitioner may have begun as early as 1979 when doctors  at Lankenau Hospital evaluating him as a medical student...