Abstract
6 Background: In 2017, the Centers for Medicare & Medicaid Services (CMS) executed a landmark bipartisan legislation aimed at gradually shifting American healthcare from a fee-for-service model to a value-based system. The resulting payment model, MIPS, uses cost and quality metrics to assign clinicians an overall MIPS score, where higher scores correspond to greater payments for practices. In 2018, cost metrics contributed only 10% of this composite score, while quality metrics contributed 50%. Beginning with 2022, the cost and quality categories will be equally weighted (30% each) to encourage clinicians to reduce healthcare costs. As the cost of cancer care is disproportionately high, we investigated the implications of the updated scoring on reimbursements for oncologists and other providers participating in MIPS. Methods: We included physicians participating in the 2018 MIPS Performance Year files. We categorized hematological-, medical, radiation, gynecological, and surgical oncologists as oncologists and delineated those with National Cancer Institute-designated Cancer Center (NCICC)-affiliation. We excluded individuals who were exempt from reporting cost scores due to their MIPS-filing method. We calculated the projected 2022 MIPS composite scores (range, 0-100) by multiplying the 2022 weights by the 2018 component scores. We compared the change in composite MIPS score and the corresponding negative payment adjustments due to reweighing across specialties. Clopper–Pearson 95% confidence intervals were reported. Results: The cohort included 168,659 physicians, of which 163,150 (97%) were non-oncologists and 5,509 (3%) were oncologists. Of oncologists, 1,757 (32%) were at a NCICC. Cost scores (higher is better) for each group were as follows: non-oncologists, 75.2; all oncologists, 65.5; NCICC oncologists, 57.1. Reweighing the 2018 MIPS composite scores with the updated 2022 cost/quality weights resulted in a mean 1.7-point decrease (88.7 to 87) for non-oncologists, a 3.8-point decrease (89.7 to 85.9) for all oncologists, and a 5.2-point decrease (89.2 to 84) for NCICC oncologists. Following the reweighing, the proportion of non-oncologists incurring penalties will increase by 12.8% (95% CI, 12.7%–12.9%); all oncologists by 14.3% (95% CI, 13.2%–15.4%); and NCICC oncologists by 20% (95% CI, 18.1%–21.9%). Conclusions: Beginning with 2022 performance year, federally mandated reweighing of MIPS cost metrics will result in a disproportionate increase in oncologists receiving negative payment adjustments. With a majority Medicare population with new cancer diagnoses, higher patient complexity, and declining operating margins at many oncologic practices, we highlight striking upcoming changes that may inform further optimization of MIPS cost metrics by CMS to ensure oncologists providing high quality care are not penalized.
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