AetnaAetnaA major national health insurer offering PPO, HMO, and EPO plans. Aetna covers a wide range of behavioral health and substance abuse treatment services, including inpatient rehab, outpatient counseling, and medication-assisted treatment.AnthemAnthemOne of the largest Blue Cross Blue Shield affiliates in the U.S., serving millions across multiple states. Anthem plans typically cover detox, residential treatment, partial hospitalization, and outpatient substance abuse programs.MedicareMedicareThe federal health insurance program for people aged 65 and older, and certain younger individuals with disabilities. Medicare Part A covers inpatient substance abuse treatment, while Part B covers outpatient counseling and therapy services.TriWestKaiser PermanenteKaiser PermanenteAn integrated managed care organization combining insurance coverage with its own network of hospitals and providers. Kaiser provides comprehensive behavioral health services including addiction treatment, therapy, and medication management within its system.HumanaHumanaA leading health insurance company with strong Medicare Advantage and employer-sponsored plan offerings. Humana covers substance abuse treatment services, including inpatient and outpatient rehab, depending on plan specifics.OptumOptumA health services and technology company owned by UnitedHealth Group. Optum manages behavioral health benefits and provider networks for substance abuse treatment, facilitating access to detox, rehab, and outpatient recovery programs.MedicaidMedicaidA joint federal and state program providing health coverage to low-income individuals and families. Medicaid covers substance abuse treatment including detox, residential rehab, outpatient services, and medication-assisted treatment, varying by state.TricareTricareThe health care program for uniformed service members, retirees, and their families. Tricare covers substance abuse treatment services including inpatient rehab, outpatient programs, and medication-assisted treatment at authorized facilities.BlueCross BlueShieldBlueCross BlueShieldThe largest health insurance network in the United States, with independently operated plans in every state. BCBS plans generally cover substance abuse treatment including detox, inpatient rehab, and outpatient programs under mental health parity laws.United HealthcareUnited HealthcareOne of the largest health insurance companies in the U.S., serving millions of members. UHC plans typically cover a range of addiction treatment services, including detox, inpatient and outpatient rehab, and behavioral health counseling.