GKR Diagnostics LLC provides fast, reliable, and fully mobile drug testing and background screening services throughout Birmingham and surrounding areas. We specialize in DOT and Non-DOT 5-panel testing, pre-employment screening, post-accident testing, reasonable suspicion testing, court-ordered drug tests, and comprehensive background checks. As a 24/7 mobile collection service, we come directly to your home, workplace, or job site minimizing downtime and ensuring a smooth, convenient experience. Our certified collector delivers accurate, confidential results with professional care and quick turnaround times. Whether you’re an employer, an individual, or part of a regulated industry, GKR Diagnostics LLC is committed to dependable service, compliance, and customer satisfaction

Phone: (205) 810-1677

Cross Streets: Between 2nd Ave N and 1st Ave N