New Jersey: Medicaid enrollment up 463K since expansion started

This article is mainly about New Jersey ACA navigators strategizing for the 2016 open enrollment period, but it also includes one handy data nugget:

In addition, NJ FamilyCare – the state’s primary Medicaid coverage program -- has added 463,463 residents to its rolls since December 2013, including 42,947 in April.

The fact that 9% of the net increase happend 16 months after the Medicaid expansion provision started is surprising to me, consideirng that according to the Kaiser Family Foundation, only around 390,000 uninsured NJ residents were even eligible for the program as of last fall to begin with. In other states, like Michigan, things have pretty much plateaued as every eligible resident has pretty much been enrolled already.