Care From Civilian Providers

To have a robust network of care, the Department of Defense contracts with companies to build networks of civilian hospitals, clinics, and doctors to provide additional services to TRICARE beneficiaries and supplement the care provided in military hospitals and clinics. These companies, known as the Managed Care Support (MCS) contractors manage referrals to civilian providers, manage the TRICARE Prime enrollment process, and pay claims for care provided by civilian doctors and facilities. TRICARE support services are broken into TRICARE Regions within the United States and overseas.

The TRICARE Regions are: TRICARE North, TRICARE South, TRICARE West, and TRICARE Overseas (Europe, Latin America, Canada, and Pacific). You can find your region at Your access to care directly links to your assigned TRICARE Region of care.

Health care services received using TRICARE civilian providers is an option for eligible beneficiaries, following the rules of the various TRICARE health care plans.

There are four TRICARE Regions managed by four separate Managed Care Support (MCS) contractors who oversee the civilian care (network) side of TRICARE: Health Net Federal Services, LLC (North); Humana Military Healthcare Services, Inc. (South); UnitedHealthcare Military & Veterans Services (West); and International SOS Assistance, Inc. (Overseas). A new TRICARE MCS contract was recently awarded.


TRICARE North Region

The North Region includes Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa (Rock Island area), Kentucky (except Fort Campbell), Maine, Maryland, Massachusetts, Michigan, Missouri (St. Louis Area), New Hampshire, New Jersey, New York, North Carolina, Ohio Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin.

Contact information for Health Net Federal Services:

Phone number: 1.877.TRICARE (1.877.874.2273)



TRICARE South Region

The South Region includes Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, Oklahoma, South Carolina, Tennessee, Texas (excluding the El Paso area) and Fort Campbell, Kentucky. The South Region contractor is also responsible for administering and complying with all Continued Health Care Benefit Program (CHCBP) requirements in all geographic areas, which is a TRICARE continuation health care coverage following discharge or retirement from the military.

Contact Information for Humana Military Healthcare Services:

Phone number: 1.800.444.5445 and for Active Duty programs 1.877.249.9179



TRICARE West Region

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.

Contact information for UnitedHealthcare Military & Veterans:

Phone number: 1.877.988.9378

Website information is:


Overseas Services Region

The TRICARE Overseas assists TRICARE beneficiaries enrolled overseas. The overseas areas are: Eurasia-Africa; Latin America and Canada; and the Pacific.

Contact Information for International SOS Assistance, Inc.:

Phone number:  1.877.563.9228 for 24/7, toll-free Customer Service. *You must first dial the AT&T Direct Code and then the Overseas customer service number.

Website is:


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