Silver loading 2020 update: The sky isn't falling

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Last week I noted that the discounts for subsidized ACA marketplace enrollees generated by silver loading (see explanation at bottom)* are likely to be somewhat reduced in 2020, given that a) average unsubsidized premiums are down 3-4%, b) and average premiums for the benchmark silver plan are down more sharply (-4%) than average premiums for the cheapest plan at each metal level (-3%).

Let's see how price spreads and discounts at each metal level have changed in the counties with the highest marketplace enrollment nationwide. Together, these 9 counties hold 16% of all on-exchange ACA marketplace enrollment.

For Whom the Bronze Bell Tolls in the ACA Marketplace

My last post looked at the likely impact of the availability of free or very cheap bronze plans for ACA marketplace customers who are eligible for strong Cost Sharing Reduction (CSR), available only with silver plans, in the five largest markets in the country.

In this post, we'll look at current CSR takeup in the five counties in question and consider how it's likely to change. Here are the counties, with their 2017 initial marketplace enrollment totals:

Miami-Dade, FL              387,848
Los Angeles, CA             380,520
Broward, FL                    240,984
Harris, TX (Houston)      240,064
Cook, IL (Chicago)         144,418

While bronze plans generally have deductibles above $6,000, CSR-enhanced silver plans, for enrollees with incomes up to twice the Federal Poverty Level, generally have deductibles in the $0-1,000 range. Silver plan premiums can be hard for CSR-eligible buyers to afford, though. The wider the spread between cheapest bronze and cheapest silver premiums, the more people will choose bronze.

Refusal to expand Medicaid swelled Florida's private plan ACA signups

Today CMS released detailed county-by-county enrollment data for private plans signups in the 37 states using healthcare.gov in 2015, as of February 22, just past the end of open enrollment,*. State-by-state income and metal level selection figures can be toted up from the county data Let's take a quick look at Florida and specifically Miami-Dade county, site of 2015's strongest signup surge.

We already knew that Florida -- which to date has refused to enact the ACA Medicaid expansion -- became the state with the most private plan enrollments, logging just shy of 1.6 million by the end of open season in February. According to the Kaiser Family Foundation, the state had enrolled 57% of its potential marketplace population as of March 31, 2015 (at which point Kaiser shows private plan enrollment at 1.4 million), second best in the country.  Of the 1.6 million state enrollees reported by HHS, 392,000 were in Miami-Dade County. Kaiser's research has previously spotlight Hialeah, a mainly Hispanic region just outside Miami (and in Miami-Dade County), as home to the zip code with the largest number of signups in the U.S.  Enrollment fever took hold there -- "Consumers can sign up for coverage in a mall, at a discount store, at a shoe store, and even at a barber shop," reported the Miami Herald in January.

"You oughtta be in Medicaid..."

Today's data release confirms that as in states that refused the Medicaid expansion generally, Florida's and Miami-Dade's private plan enrollments were swelled by enrollees who would have been eligible for Medicaid if the state had accepted the expansion. In Florida, 856,092 private plan enrollees -- more than half (53.6%) of the total -- had incomes between 100% and 150% of the Federal Poverty Level (FPL).  That compares with 47% in all states using healthcare.gov that refused to expand Medicaid, and just 22% in expansion states.

Those with incomes in 100-138% FPL range would be Medicaid-eligible if the state had expanded. We don't know exactly how many there are, but my prior analysis of national enrollment numbers suggests that at least two thirds of the 856k in the 100-150% FPL range are Medicaid-eligible -- a bit more than a third of all private plan enrollees in the state (and maybe a good deal more).

In Miami-Dade, the proportion of low-income enrollees is even more eye-popping. Fully two thirds of enrollees -- 259,000 out of 392,000 -- had incomes in the 100-150% FPL range.  Some 85% had incomes under 200% FPL, the threshold below which really strong Cost Sharing Reduction (CSR) subsidies are available with silver-level plans.