From the Document: "Established in 1790, the U.S. Coast Guard (USCG) is a military service in the Department of Homeland Security (DHS) and a branch of the armed forces of the United States. The role of USCG is to provide security, maritime safety, and environmental stewardship on the high seas and in the ports, inland waterways, and maritime economic zones of the United States. To support these tasks, 14 U.S.C. §504 authorizes USCG to administer a Health Services program to sustain the medical readiness of approximately 47,000 active duty and reserve servicemembers of the Coast Guard. The USCG program also collaborates with the Military Health System (MHS) of the Department of Defense (DOD) to offer health care services to 9.6 million beneficiaries eligible for TRICARE. [...] There are a number of perceived challenges facing the USCG Health Services program, many of which have attracted congressional attention and ongoing oversight.  Electronic Health Record Modernization; [...]  USPHS [U.S. Public Health Service] Support to USCG; [...] [and 3] Disability Evaluation System."
CRS In Focus, IF11702
Congressional Research Service: https://crsreports.congress.gov/