Coordination of Benefits Contractor 1-800-999-1118 TTY 1-800-318-8782
Department of Defense TRICARE 1-888-363-5433
TRICARE for Life 1-866-773-0404
Department of Health and Human Services
Office of the Inspector General 1-800-447-8477 TTY 1-800-377-4950
Office for Civil Rights 1-800-368-1019 TTY 1-800-537-7697
Department of Veterans Affairs 1-800-827-1000 TTY 1-800-829-4833
Railroad Retirement Board (RRB)
(RRB beneficiaries only) Local RRB office or 1-800-808-0772
(Primary Source: Centers for Medicare and Medicaid Services - Medicare and You Handbook. This content may have been enhanced by Q1Group LLC to include further examples, explanations, and links.)