In 1992, Gateway Health Plan, Inc. was established as an alternative to Pennsylvania?s Department of Public Welfare?s Medical Assistance Program. For more than 15 years, members have benefited from services such as disease management, health and wellness programs and preventive care. Today, Gateway Health Plan is a top-ranked managed care organization that provides service to more than 244,000 members eligible for medical assistance. Gateway Health Plan Medicare Assured, a Special Needs Plan for those eligible for both Medicare and Medicaid, is one of the nation?s largest Medicare programs for the dual-eligible population.