Michael Liu, MD, MPhil

CMS (@CMSGov) will soon be rolling out the WISeR model - the first major expansion of prior authorization in FFS Medicare. In @NEJM, we highlight concerns about misaligned incentives, potential harm to patients, and added strain on health systems. Link: nejm.org/doi/full/10.10…

Millions of Americans skip medications because they can't afford them. Did the Inflation Reduction Act help? In @JAMAInternalMed, we find the IRA's 2024 drug provisions ⬇️⬇️cost-related medication nonadherence—especially in those w/ multiple conditions jamanetwork.com/journals/jamai…

💬 Viewpoint: The ACCESS model by the Centers for Medicare & Medicaid Services will link #Medicare payments to patient outcomes in chronic disease, supporting digital health tools and team-based care over 10 years. ja.ma/4tQXD4A

Led by @vrpatel97 in @AnnalsofIM, we show that physicians are more likely to die at home or hospice than others. However, modest gaps suggest that even medical knowledge and familiarity with serious illness are not the principal drivers of end-of-life care acpjournals.org/doi/10.7326/AN…

Delighted to feature two Brigham residents! @LiuMichaelMD @rohankhaz #GIM

Florida's Senate Bill 1718 imposed anti-immigration measures, including requiring hospitals to collect patients' immigration status A new study led by @LiuMichaelMD finds this policy is associated w/harm to Hispanics across Florida ⬇️ Lawmakers should take note--and repeal this harmful policy @PIFCoalition @FlaDems @FLSenateDems @FLHouseDems

New study in @TheLancet leverages a natural experiment to evaluate how state-level anti-immigration measures impact physical and mental health. @LiuMichaelMD @vrpatel97 @davidevelasqu @gomitomd2B thelancet.com/journals/lance…

Amid the global rise in anti-immigration policies, our new study in @TheLancet provides an evaluation of Florida's 2023 immigration law (SB 1718) and demonstrates the direct health consequences of such restrictive measures on physical + mental health Link:thelancet.com/journals/lance…

H-1B visa–sponsored physicians are twice as prevalent in rural counties and nearly 4 times as common in high-poverty areas, highlighting the potential harm of rising visa costs to health care access. ja.ma/48DEScs

Medical school in the US is already the most expensive in the world and federal loan caps + loss of Grad PLUS could reshape who gets to train. Our @JAMA_current research letter looks at federal loans among US med students over a decade #MedEd jamanetwork.com/journals/jama/…

Federal loan use among US medical students increased from 2008 to 2020 as tuition rose 38%. The One Big Beautiful Bill Act now caps federal loans and eliminates Graduate PLUS Loans, with greatest impact on low-income and out-of-state students. #MedEd ja.ma/4ohjFcM

Iinternet searches and website traffic have increased sharply for an #AI-based clinical resource (OpenEvidence) relative to a traditional platform (UpToDate) since early 2024. ja.ma/4pm8Bfq

Check out our latest in @JAMAInternalMed, where we characterize clinical trials supported by NIH grants that were terminated #250652731" target="_blank" rel="nofollow noopener">jamanetwork.com/journals/jamai…

Between February and August 2025, 1 in 30 NIH-funded clinical trials lost grant funding, affecting over 74,000 participants, with disproportionate impact on prevention, infectious disease, and behavioral trials. ja.ma/47MF1da

H-1B visa–sponsored physicians are twice as prevalent in rural counties and nearly 4 times as common in high-poverty areas, highlighting the potential harm of rising visa costs to health care access. ja.ma/47xKm6F

In @JAMAPediatrics, we extend our prior work on NIH grant terminations and find that >60% of grants related to gender-affirming care were terminated this March - hindering our ability to generate empirical evidence in this critical area of health care. jamanetwork.com/journals/jamap…

@JAMAInternalMed @vrpatel97 @AnupamBJena @Harvard @BrighamMedRes @JAMA_current @rhodes_trust @statnews @BrighamResearch Illuminating Editor's note by @cpgYALE + Dr. Brender on the consequences of trial disruptions - the gold standard for evidence generation: 1⃣ wasted time + resources among investigators & participants 2⃣ loss of data integrity 3⃣ compromised ethical obligations to participants

New in @JAMAInternalMed with @vrpatel97 and @AnupamBJena, we find that grant terminations at the NIH impacted nearly 1 in 30 clinical trials and >74,000 participants! Terminations disproportionately impacted ID, prevention + behavioral health trials. jamanetwork.com/journals/jamai…

A recent policy change dramatically ⬆️ H-1B visa fees to $100,000 In @JAMA_current, we find that rural and high-poverty U.S. counties are especially reliant on H-1B doctors & health care workers jamanetwork.com/journals/jama/…

@JAMA_current @rkwadhera @tarunr99 @vrpatel97 @JAMANetwork @BrighamMedRes @MGBResearchNews @SmithBIDMC @rhodes_trust @harvardmed @AmerMedicalAssn 4/ Insightful accompanying VP by @omarabughanimeh & @MouhannaMDGI re: the dire consequences of the Proclamation: "The only standard that should guide immigration policy in health care is this: does it help patients receive timely, high-quality care? If not, it must be changed."

@JAMA_current @rkwadhera @tarunr99 @vrpatel97 @JAMANetwork @BrighamMedRes @MGBResearchNews @SmithBIDMC @rhodes_trust @harvardmed 3/ Raising H-1B visa fees will exacerbate workforce shortages and worsen care access for already underserved Americans. In line with calls from @AmerMedicalAssn and many others, our findings support national interest waivers for physicians and other HCWs ama-assn.org/press-center/a…

1/ On September 19, a Presidential Proclamation increased ⏫ H-1B visa fees from ~$3500 to $100,000. In @JAMA_current, we find that many US counties depend heavily on H-1B health care workers - particularly rural and the highest poverty communities Link: jamanetwork.com/journals/jama/…