Medicare Part D: A First Look at Prescription Drug Plans in 2020 6
About three in 10 (29%) non-LIS enrollees (3.8 million) are projected to pay monthly premiums of at
least $60 if they stay in their current plans. More than 215,000 (2% of non-LIS enrollees) are projected
to pay monthly premiums of at least $100.
CMS reported that the average premium for basic Part D coverage offered by PDPs and MA-PDs will
be an estimated $30 in 2020. Our premium estimate is higher because it is based on PDPs only and
includes PDPs offering both basic and enhanced coverage (enhanced plans have higher premiums
than basic plans, on average). In contrast, the CMS estimate includes MA-PDs and excludes plans
offering enhanced coverage. In addition, our premium estimates are weighted based on current
enrollment and do not incorporate any assumptions about plan changes by current enrollees,
reassignment of Low-Income Subsidy enrollees by CMS, or plan choices by new enrollees.
In prior years, the average premium that we have calculated after taking into account enrollment
changes made during the open enrollment period and subsequent months has been somewhat lower
than our projection based on current enrollment. For example, the weighted average premium
calculated in September 2019 was $39.13, 5% ($2.08) below the projected premium for 2019 of $41.21
calculated prior to enrollment changes. The reduction is due to current enrollees switching to lower
premium plans, new enrollees choosing low-premium plans, and reassignment of some LIS
beneficiaries to lower-premium plans.
PREMIUM VARIATION AND CHANGES FOR NATIONAL PDPS
PDP premiums will continue to vary widely across plans in 2020, as in previous years.
Among the 20 PDPs available nationwide in 2020, average premiums will range sixfold, from a low of
$13 per month for Humana Walmart Value Rx Plan to a high of $83 per month for Express Scripts
Medicare Choice (Figure 1; Table 2).
Changes to premiums from 2019 to 2020, averaged across regions and weighted by September 2019
enrollment, also vary widely across PDPs, as do the absolute amounts of monthly premiums for 2020.
The 2.1 million non-LIS enrollees in the largest PDP, CVS Health’s SilverScript Choice (which had a
total of 4.4 million enrollees in 2019, including those receiving low-income subsidies) will face a $2
(7%) decrease in their average monthly premium, from $31 in 2019 to $29 in 2020.
In contrast, the 2.0 million non-LIS enrollees in the second largest PDP, AARP MedicareRx Preferred,
will face a $4 (6%) increase in their average monthly premium between 2019 and 2020, from $75 to
$79. This is the second highest monthly premium among the national PDPs in 2020.
Plan changes and consolidations will affect the premiums paid by many current enrollees in Humana’s
PDPs. For 2020, Humana is consolidating two of its PDPs (Humana Walmart Rx and Humana
Enhanced) into one PDP and renaming it Humana Premier Rx. It is also renaming Humana Preferred
Rx to Humana Basic Rx, and introducing an entirely new PDP, Humana Walmart Value Rx Plan.
o The weighted average monthly premium for Humana Premier Rx will be $57 in 2020. For the 1.9
million non-LIS enrollees in the Humana Walmart Rx plan (the third most popular PDP in 2019) who
will be automatically enrolled in Humana Premier Rx, the monthly premium will more than double,
from $28 to $57, if they do not switch plans for 2020 (Figure 6). Beneficiaries enrolled in Humana