Is coventry a medicare advantage plan? Coventry Medicare Advantage. Health Maintenance Organizations, or HMOs, are usually one of the most affordable Medicare Advantage plans because the Medicare-contracted insurance company negotiates its rates with a network of doctors and other health-care providers to treat its plan members.What is coventry health insurance? Coventry Health Insurance. Coventry Health Insurance specializes in offering coverage for medical services for everyone, they have: Singles, Families, Students and Recent Grads, Self-employed, In-between jobs or without group coverage, Early Retirees. Also, Coventry Health Insurance is very affordable.What is aetna coventry insurance? An Aetna company, Coventry Health Care offers Medicare beneficiaries with other types of Medicare coverage. Coventry's coverage includes Medicare Advantage plans and stand-alone Medicare Prescription Drug Plans (Part D). Coventry Health Care Medicare is currently only available via phone calls. Leave your contact info here.