John Z. Ayanian, MD, MPP

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Articles

October 23rd 2024

Racial/Ethnic Disparities in Cost-Related Barriers to Care Among Near-Poor Beneficiaries in Medicare Advantage vs Traditional Medicare

Alexandra G. Hames, PhD Renuka Tipirneni, MD, MSc Galen E. Switzer, PhD John Z. Ayanian, MD, MPP Jeffrey T. Kullgren, MD, MS, MPH Erica Solway, PhD, MPH, MSW Eric T. Roberts, PhD

Among near-poor Black and Hispanic individuals, Medicare Advantage was associated with increased vision care and some, although not uniform, reductions in access disparities vs traditional Medicare.

October 4th 2022

Turnover Among New Medicare Advantage Enrollees May Be Greater Than Perceived

Jeffrey Dong, MD Alan M. Zaslavsky, PhD John Z. Ayanian, MD, MPP Bruce E. Landon, MD, MBA

Enrollees who join Medicare Advantage undergo significant turnover in the years following enrollment.

March 2nd 2021

Use of Diabetes Medications in Traditional Medicare and Medicare Advantage

Bruce E. Landon, MD, MBA Alan M. Zaslavsky, PhD Jeffrey Souza, BA John Z. Ayanian, MD, MPP

Medicare Advantage enrollees are more likely to be treated with metformin and sulfonylureas and less likely to receive costly newer medications than those in traditional Medicare.

March 11th 2019

Factors Influencing Primary Care Providers’ Decisions to Accept New Medicaid Patients Under Michigan’s Medicaid Expansion

Renuka Tipirneni, MD, MSc Edith C. Kieffer, PhD, MPH John Z. Ayanian, MD, MPP Eric G. Campbell, PhD Cengiz Salman, MA Sarah J. Clark, MPH Tammy Chang, MD, MPH, MS Adrianne N. Haggins, MD, MSc Erica Solway, PhD, MPH, MSW Matthias A. Kirch, MS Susan D. Goold, MD, MHSA, MA

In the era after Medicaid expansion, primary care providers placed importance on practice capacity, specialist availability, and reimbursement when deciding whether to accept new Medicaid patients.

August 18th 2015

A Comparison of Relative Resource Use and Quality in Medicare Advantage Health Plans Versus Traditional Medicare

Bruce E. Landon, MD, MBA, MSc Alan M. Zaslavsky, PhD Robert Saunders, PhD L. Gregory Pawlson, MD, MPH Joseph P. Newhouse, PhD John Z. Ayanian, MD, MPP

Compared with traditional Medicare, relative resource use for those with diabetes or cardiovascular disease is lower in Medicare Advantage, while quality of care is higher.