TRICARE East RegionAlabama, Arkansas, Connecticut, Delaware, the District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa (Rock Island area), Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, Missouri (St. Louis area), New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas (excluding El Paso area), Vermont, Virginia, West Virginia, and Wisconsin.–Humana Military
1-800-444-5445
TRICARE East Region Website
TRICARE West RegionAlaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa (excludes Rock Island arsenal area), Kansas, Minnesota, Missouri (except St. Louis area), Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Texas (southwestern corner including El Paso), Utah, Washington and Wyoming.–Health Net Federal Services
1-844-866-9378
TRICARE West Region Website
TRICARE Overseas Region–International SOS Government Services, Inc.
Country-specific toll-free numbers
TRICARE Overseas Website
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Last Updated 7/6/2023