As of May 7th, 2018, the new CPS Customer Service hours will be 8:00AM-6:00PM EST Monday-Friday.

Patients will still be able to report their INR results to a live agent from 8AM-8PM.
 

+References
1 The CoaguChek Vantus system may be used up to a maximum of 13,120 feet. Bluetooth connectivity requires a smartphone or tablet. Minimum specifications required. Call 1-800-780-0675 for a list of supported devices and operating systems.