PORTLAND — Martin’s Point Health Care, the Portland-based health care network, held an event on the city’s waterfront this morning to celebrate its 5-Star ratings on two Generations Advantage Medicare Advantage plans.

The rating from the Centers for Medicare and Medicaid Services means the plans offer the highest level of value and quality of care. Martin’s Point is the only Medicare Advantage plan in Maine to receive the 5-star designation and one of only nine organizations nationwide.

About 130 community partners, doctors and providers, employees and others attended the celebration this morning at the Ocean Gateway terminal. Martin’s Point is a nonprofit that provides primary care services, health plans, and wellness services in northern New England.