Components of a GPU. A graphics processing unit (GPU) is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. GPUs are used in embedded systems, mobile phones, personal computers, workstations, and game consoles.
1-800-MEDICARE (1-800-633-4227) For specific billing questions and questions about your claims, medical records, or expenses, login to MyMedicare.gov, or call 1-800-MEDICARE.
Phone numbers for providers. 1  Customer Service: 1-800-4-HUMANA (1-800-448-6262) 2  Web Specialists: 1-877-845-3480.