<P> In October 2009 International SOS Assistance, Inc. was awarded the contract to provide comprehensive health care support services to the Department of Defense Tricare Overseas Program . </P> <P> Effective January 1, 2018 the Tricare regions were consolidated into two large regions, Tricare East and Tricare West . Services in these regions are provided by: </P> <Ul> <Li> East--Humana Military Healthcare Services, Inc . The East Region includes Alabama, Arkansas, Connecticut, Delaware, the District of Columbia, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin and portions of Iowa (Rock Island Arsenal area), Missouri (St. Louis area) and Texas (excluding the El Paso area)... </Li> <Li> West--Health Net Federal Services, LLC The West Region includes Alaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa (excluding Rock Island Arsenal area), Kansas, Minnesota, Missouri (except the St. Louis area), Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Texas (the southwestern corner, including El Paso), Utah, Washington and Wyoming . </Li> </Ul> <Li> East--Humana Military Healthcare Services, Inc . The East Region includes Alabama, Arkansas, Connecticut, Delaware, the District of Columbia, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin and portions of Iowa (Rock Island Arsenal area), Missouri (St. Louis area) and Texas (excluding the El Paso area)... </Li>

Who manages each tricare region and is responsible for the military health system in that region
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