Twice a year, CHIA updates its analysis of Massachusetts health insurance enrollment trends for the most recent trailing two-year period to give researchers and policymakers insight into the market. Approximately 6.5 million Massachusetts residents have health insurance coverage, where coverage is defined by unique Massachusetts residents with primary, medical membership in the 14 largest commercial payers, MassHealth (Medicaid), or Medicare.
Private commercial insurance enrollment remained stable overall, covering approximately 4.1 million Massachusetts residents. Over 90% of Massachusetts residents who enroll in private commercial insurance do so through their employer, although a growing proportion are individual purchasers.
Between March 2017 and March 2019, the merged market grew by 0.8% (+6,000 members). 1
The number of Massachusetts residents receiving primary, medical insurance coverage from Medicare continued to grow to 1.1 million by March 2019. This growth was concentrated within Medicare Advantage plans (+11.8% from March 2017), where Tufts remained the largest payer.
In March 2019, 1.2 million Massachusetts residents relied on MassHealth for their primary, medical coverage, a decline of -9.4% compared to March 2017. Another 581,000 residents received partial or secondary coverage from MassHealth, an increase of 1.4% over the two-year period.
1. The Massachusetts merged market includes private commercial insurance sold to individuals or small groups (50 or fewer eligible employees) under fully-insured plans.
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Updated August 2019