San Antonio is often called “Military City USA,” home to Joint Base San Antonio — which includes Fort Sam Houston, Lackland Air Force Base, and Randolph Air Force Base — and one of the largest active-duty, veteran, and military-dependent populations of any US metro. That means a meaningful share of patients at San Antonio-area practices carry TRICARE coverage, which has its own claim-submission format, referral-authorization rules, and timely-filing deadlines that differ from standard commercial billing.

San Antonio is also home to the South Texas Medical Center — the region’s largest medical complex — and UT Health San Antonio, anchoring a dense mix of academic-affiliated specialists and independent practices across Bexar County. South Texas also carries a higher share of Medicaid-covered patients than many other parts of the state, so Texas Medicaid managed care plans under STAR, STAR+PLUS, and CHIP make up a larger portion of the payer mix here. Eminent Health’s AR follow-up workflow is built to track TRICARE, Medicaid managed care, and commercial claims side by side, so nothing falls through the cracks in a market with this much payer diversity.