Where can mcgonigal practise? (1) Dr. DONALD JAMES MCGONIGAL may practise only in the areas of medicine in which Dr. MCGONIGAL is educated and experienced.Who is the owner of mcgonigal veterinary care? The owner of the practice, Dr. McGonigal, is a graduate of Colorado State and believes in keeping veterinary care fun and affordable. Dr. McGonigal has extensive small animal experience and has done various complex orthopedic surgeries. He also leads a very experienced, competent, and caring staff.Is mcgonigal cadillac available with lease or other offers? Not available with lease and some other offers. Take new retail delivery by 9/30/21. At McGonigal Cadillac, we are your top destination for brand-new luxury vehicles, high-quality pre-owned models, and dedicated auto service.