Affiliated Pathologists Medical Group (APMG) is a professional corporation composed of 39 Board certified, and in many instances subspecialty certified, pathologists covering 12 service locations in 4 counties in California, 1 in Phoenix, Arizona, and 2 in Portland, Oregon. A number of our members are recognized as national and international experts in pathology and in specific subspecialty fields. This subspecialty expertise and diversity of experience enables us to provide comprehensive professional support and consultative services to each hospital.