CIAN Diagnostics is committed to providing attentive customer service. We are happy to answer any questions you may have about our testing options. ADDRESS 5325 Spectrum DriveFrederick, MD 21703 HOURS OF OPERATION Mon-Friday: 730AM – 9 PM ESTSaturday: 10AM – 6PM ESTSunday: 9AM – 2PM EST EMAIL MAIN PHONE 844-800-CIAN 240-396-4343 After Hours: 301-310-7366