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Mark Meiselbach Profile
Mark Meiselbach

@Mark_Meiselbach

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Assistant Professor studying health economics at @JohnsHopkins @JHSPH_HPM. Alumn of @JHSPH_HPM @TuftsUniversity.

Baltimore, MD
Joined October 2015
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@Mark_Meiselbach
Mark Meiselbach
4 years
I thought health economics deserved its own. let me know what I missed! No shade meant for any of these papers, of course. #healthecon. Original source of comic:
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@Mark_Meiselbach
Mark Meiselbach
8 days
RT @ProfEmilyOster: Responding to RFK Jr is like wack-a-mole but here's today's: vaccines do not increase autism by 1135%. .
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@Mark_Meiselbach
Mark Meiselbach
8 days
RT @besttrousers: 95% of people who lost coverage when Arkansas instituted "work requirements" had jobs. You have to look at what policies….
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@Mark_Meiselbach
Mark Meiselbach
10 days
RT @Arnold_Ventures: Our nation is facing a deep fiscal crisis. Instead of responsibly addressing it, the Senate advanced one of the larges….
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@Mark_Meiselbach
Mark Meiselbach
1 month
I am looking forward to future work on this project to explore enrollee retention and satisfaction in the plans and heterogeneous enrollment effects. We are grateful for funding from @Arnold_Ventures that supports this work!.
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@Mark_Meiselbach
Mark Meiselbach
1 month
Interestingly, these plans look quite different from non-giveback plans. They tend to have higher cost-sharing and attract enrollees with much lower risk scores. But they offer other supplemental benefits at similar rates (e.g., nutrition benefits).
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@Mark_Meiselbach
Mark Meiselbach
1 month
We estimate that hundreds of millions are attributable to this benefit per month in 2024. Further, we find that the introduction of the giveback has a substantial effect on plan enrollment, with enrollment increasing >30% following the offer.
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@Mark_Meiselbach
Mark Meiselbach
1 month
In MA, enrollees still pay Part B premiums even when a plan is "free." This can be $100s per month. Increasingly, plans have been using rebate dollars to "give back" Part B premiums to enrollees in their plans. This is becoming common, with ~19% of plans offering this benefit.
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@Mark_Meiselbach
Mark Meiselbach
1 month
New paper out with @andrew_andersn, @Laura_J_Samuel, and @Kalit23 in @JAMAHealthForum on "Medicare Advantage Part B Premium Givebacks and Enrollment". @BSPH_HPM @JohnsHopkinsSPH @JHUNursing @JHU_HBHI . More below.
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@Mark_Meiselbach
Mark Meiselbach
1 month
RT @Brendan_Duke: My very hot take: CBO is basically the most functional component of the legislative branch. The staff are super smart,….
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@Mark_Meiselbach
Mark Meiselbach
1 month
RT @ysingh_phd: I am honored to be named a 2025 @aspenideas Health Fellow, joining a diverse group of leaders from around the world who are….
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@Mark_Meiselbach
Mark Meiselbach
1 month
RT @JHSPH_CMAP: 🎉 Congrats to PhD student @SarahClarkHend1 for winning a Best Student Poster Award at #ARM25! @AcademyHealth. Her research….
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@Mark_Meiselbach
Mark Meiselbach
1 month
RT @ProfEmilyOster: The fake AI citations in the MAHA report are obviously embarrassing. But worse is what this says about how they are eva….
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@Mark_Meiselbach
Mark Meiselbach
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RT @JAMAHealthForum: SNAP work requirements caused immediate coverage losses but reversing them did not boost enrollment. .
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@Mark_Meiselbach
Mark Meiselbach
2 months
RT @MattAFiedler: Two other closing notes. First, while reporting of invalid diagnoses is part of why risk scores are higher in MA, more in….
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@Mark_Meiselbach
Mark Meiselbach
2 months
RT @MattAFiedler: Important step from CMS to begin conducting risk adjustment data validation (RADV) audits for *all* MA contracts each yea….
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@Mark_Meiselbach
Mark Meiselbach
2 months
RT @TheFIREorg: BREAKING: FIRE statement on Trump administration revoking Harvard’s Student and Exchange Visitor Program certification. The….
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@Mark_Meiselbach
Mark Meiselbach
2 months
RT @itaisher: This administration is so corrupt. The government should not target specific private institutions just to score political po….
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@Mark_Meiselbach
Mark Meiselbach
2 months
RT @JHSPH_CMAP: 🎉 Congrats to @andrew_andersn & @CatherineEttman receiving a Nexus Research Award for CLIMB Higher: Addressing Mental Heal….
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@Mark_Meiselbach
Mark Meiselbach
2 months
RT @JosephPolitano: Trump with tariffs
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@Mark_Meiselbach
Mark Meiselbach
2 months
RT @MayorBMScott: Last month there were five homicides in Baltimore. That's the lowest number of homicides recorded in a single month — e….
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