Inter Valley Health Plan is a not-for-profit, Medicare Advantage health plan providing health insurance products for more tha ... n 20,000 Medicare members throughout Los Angeles, Riverside, San Bernardino and Orange Counties. It is comprised of active leaders in today’s health care arena and is committed to continually developing innovative, “best practice” approaches to coordinated health care in order to better meet the needs of its members. Inter Valley Health Plan is a non-profit health insurance company dedicated to serving the 65+ population and those on Medicare. Inter Valley Health Plan is a non-profit federally qualified Medicare Advantage Prescription Drug Plan (MA-PD) with a Medicare contract. read more