Testing Locations » California » Oceanside CA » E&J Medical Services, Inc. – E&J Medical Services, Inc. – Drug Testing Only (Preferred) E&J Medical Services, Inc. – E&J Medical Services, Inc. – Drug Testing Only (Preferred) E&J Medical Services, Inc. – E&J Medical Services, Inc. – Drug Testing Only (Preferred)2191 S El Camino RealSte 103Oceanside, CA 92054-6225 United States