Publications by authors named "Kenton J Johnston"

Importance: In 2021, the Centers for Medicare & Medicaid Services designated a new category of dual-eligible special needs plans (D-SNPs) with exclusively aligned enrollment (receive Medicare and Medicaid benefits through the same plan or affiliated plans within the same organization).

Objective: To assess the availability of and enrollment in D-SNPs with exclusively aligned enrollment and to compare the characteristics of beneficiaries enrolled in D-SNPs with exclusively aligned enrollment available vs beneficiaries without such enrollment available.

Design, Setting, And Participants: Full-benefit beneficiaries enrolled in D-SNPs for 6 months or longer in 2021 or 2022.

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Medicare Advantage (MA) supplemental benefits offered at no or low premiums are a key value proposition for low-income beneficiaries. Despite nearly $20 billion in rebate payments to MA plans for funding supplemental benefits, their quality or enrollee access is not monitored. Using 2018-19 Medicare Current Beneficiary Survey data linked to MA plan data, we found that regardless of plan benefit generosity, low-income beneficiaries were more likely to report dental, vision, and hearing unmet needs because of cost.

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Article Synopsis
  • A study found that only 18.3% of adults with heart failure in the U.S. received palliative care within five years of diagnosis, despite its benefits.
  • Shorter wait times for palliative care were linked to more recent diagnoses, advanced heart failure, and certain medical interventions.
  • The research highlights underutilization of palliative care and suggests that factors like race and geography may affect access, indicating a need for further exploration of barriers to service utilization.
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Importance: Most dual-eligible Medicare-Medicaid beneficiaries are enrolled in bifurcated insurance programs that pay for different components of care. Therefore, policymakers are prioritizing expansion of integrated care plans (ICPs) that manage both Medicare and Medicaid benefits and spending.

Objective: To review evidence of the association between ICPs and health care spending, quality, utilization, and patient outcomes among dual-eligible beneficiaries.

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Importance: Medicaid coverage loss can substantially compromise access to and affordability of health care for dual-eligible beneficiaries. The extent to which this population lost Medicaid coverage before and during the COVID-19 public health emergency (PHE) and the characteristics of beneficiaries more at risk for coverage loss are currently not well known.

Objective: To assess the loss of Medicaid coverage among dual-eligible beneficiaries before and during the first year of the PHE, and to examine beneficiary-level and plan-level factors associated with heightened likelihood of losing Medicaid.

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Accountable care organizations (ACOs) have become Medicare's dominant care model because policy makers believe that ACOs will improve the quality and efficiency of care for chronic conditions. Depression and anxiety disorders are the most prevalent and undertreated chronic mental health conditions in Medicare. Yet it is unknown whether ACOs influence treatment and outcomes for these conditions.

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Importance: Social determinants of health contribute to disparities in cancer outcomes. State public assistance spending, including Medicaid and cash assistance programs for socioeconomically disadvantaged individuals, may improve access to care; address barriers, such as food and housing insecurity; and lead to improved cancer outcomes for marginalized populations.

Objective: To determine whether state-level public assistance spending is associated with overall survival (OS) among individuals with cancer, overall and by race and ethnicity.

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Importance: Medicare Advantage (MA) plans are expanding rapidly, now serving 50% of all Medicare enrollees. Little is known about how inclusion rates of physicians in MA plan networks vary by the social and clinical risks of their patients.

Objective: To examine the association of physicians caring for patients with higher levels of social and clinical risk in traditional Medicare (TM) with the likelihood of inclusion in MA plan networks.

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Background: Patients with dementia are a growing and vulnerable population within Medicare. Accountable care organizations (ACOs) are becoming Medicare's dominant care model, but ACO enrollment and care patterns for patients with dementia are unknown.

Objective: The aim of this study was to compare differences in ACO enrollment for patients with versus without dementia, and in risk profiles and ambulatory care among patients with dementia by ACO enrollment status.

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Policy makers are increasingly investing in efforts to better integrate Medicare and Medicaid services for people who are eligible for both programs, including expanding Dual-Eligible Special Needs Plans (D-SNPs). In recent years, however, a potential threat to integration has emerged in the form of D-SNP "look-alike" plans, which are conventional Medicare Advantage plans that are marketed toward and primarily enroll dual eligibles but are not subject to federal regulations requiring integrated Medicaid services. To date, limited evidence exists documenting national enrollment trends in look-alike plans or the characteristics of dual eligibles in these plans.

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Importance: Medicare's Merit-Based Incentive Payment System (MIPS) is a new, mandatory, outpatient value-based payment program that ties reimbursement to performance on cost and quality measures for many US clinicians. However, it is currently unknown how the program measures the performance of psychiatrists, who often treat a different patient case mix with different clinical considerations than do other outpatient clinicians.

Objective: To compare performance scores and value-based reimbursement for psychiatrists vs other outpatient physicians in the 2020 MIPS.

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Importance: Medicare beneficiaries with disabilities aged 18 to 64 years face barriers accessing ambulatory care. Past studies comparing Medicare Advantage (MA) with traditional Medicare (TM) have not assessed how well these programs meet the needs of beneficiaries with disabilities.

Objective: To compare differences in enrollment rates, ambulatory care access, and ambulatory care quality for beneficiaries with disabilities in MA vs TM.

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Paid sick leave provides workers with job-protected paid time off to address short-term illnesses or seek preventive care for themselves and their family members. We studied the impact of mandatory paid sick leave at the state level on emergency department (ED) visit rates, using all-payer, longitudinal ED data from the Healthcare Cost and Utilization Project for the period 2011-19. We found that state implementation of paid sick leave mandates was associated with a 5.

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Importance: There are racial inequities in health care access and quality in the United States. It is unknown whether such differences for racial and ethnic minority beneficiaries differ between Medicare Advantage and traditional Medicare or whether access and quality are better for minority beneficiaries in 1 of the 2 programs.

Objective: To compare differences in rates of enrollment, ambulatory care access, and ambulatory care quality by race and ethnicity in Medicare Advantage vs traditional Medicare.

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Establishing care with primary care and specialist clinicians is critical for Medicare beneficiaries with complex care needs. However, beneficiaries with disabilities may struggle to access ambulatory care. This study uses the 2015-17 national Medicare Current Beneficiary Survey linked to claims and administrative data to explore these questions.

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This study assesses the association between US clinicians’ caseload of minority patients and their 2019 Medicare Merit-based Incentive Payment System performance score.

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