JW
Medically reviewed by James Whitfield, MHA, CHC
Healthcare Policy & Insurance Editor · Last reviewed January 2025
Healthcare Policy & Insurance Editor · Last reviewed January 2025
Health insurance is one of the most important and least understood aspects of the American healthcare system. The complexity of deductibles, networks, prior authorizations, parity requirements, and appeals processes creates barriers to care for millions of Americans — even those who have coverage. Holy Rosary Healthcare's health insurance section provides practical, accurate information to help patients navigate their coverage.
How Health Insurance Works
Premiums, deductibles, copays, networks — the essential vocabulary
Medicare
Parts A, B, C, D — what each covers and enrollment rules
Medicaid
Eligibility, coverage, and ACA expansion
ACA Marketplace
Metal tiers, subsidies, and open enrollment
Addiction Treatment Coverage
What parity law requires and what's typically covered
Appealing Coverage Denials
Your rights and the step-by-step appeals process
Related: Patient Resources · Addiction Treatment Insurance