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Original Research
Impact of CMS Competitive Bidding Program on Medicare Beneficiary Safety and Access to Diabetes Testing Supplies: A Retrospective, Longitudinal Analysis
Gary A. Puckrein, Gail Nunlee-Bland, Farhad Zangeneh, Jaime A. Davidson, Robert A. Vigersky, Liou Xu, Christopher G. Parkin, David G. Marrero
Diabetes Care 2016 Mar; dc151264. https://doi.org/10.2337/dc15-1264
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Abstract

OBJECTIVE In 2011, the Centers for Medicare & Medicaid Services (CMS) launched the Competitive Bidding Program (CBP) in nine markets for diabetes supplies. The intent was to lower costs to consumers. Medicare claims data (2009–2012) were used to confirm the CMS report (2012) that there were no disruptions in acquisition caused by CBP and no changes in health outcomes.

RESEARCH DESIGN AND METHODS The study population consisted of insulin users: 43,939 beneficiaries in the nine test markets (TEST) and 485,688 beneficiaries in the nontest markets (NONTEST). TEST and NONTEST were subdivided: those with full self-monitoring of blood glucose (SMBG) supply acquisition (full SMBG) according to prescription and those with partial/no acquisition (partial/no SMBG). Propensity score–matched analysis was performed to reduce selection bias. Outcomes were impact of partial/no SMBG acquisition on mortality, inpatient admissions, and inpatient costs.

RESULTS Survival was negatively associated with partial/no SMBG acquisition in both cohorts (P < 0.0001). Coterminous with CBP (2010–2011), there was a 23.0% (P < 0.0001) increase in partial/no SMBG acquisition in TEST vs. 1.7% (P = 0.0002) in NONTEST. Propensity score–matched analysis showed beneficiary migration from full to partial/no SMBG acquisition in 2011 (1,163 TEST vs. 605 NONTEST) was associated with more deaths within the TEST cohort (102 vs. 60), with higher inpatient hospital admissions and associated costs.

CONCLUSIONS SMBG supply acquisition was disrupted in the TEST population, leading to increased migration to partial/no SMBG acquisition with associated increases in mortality, inpatient admissions, and costs. Based on our findings, more effective monitoring protocols are needed to protect beneficiary safety.

  • Received June 12, 2015.
  • Accepted January 9, 2016.
  • © 2016 by the American Diabetes Association. Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered.
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Diabetes Care: 44 (4)

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April 2021
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Impact of CMS Competitive Bidding Program on Medicare Beneficiary Safety and Access to Diabetes Testing Supplies: A Retrospective, Longitudinal Analysis
Gary A. Puckrein, Gail Nunlee-Bland, Farhad Zangeneh, Jaime A. Davidson, Robert A. Vigersky, Liou Xu, Christopher G. Parkin, David G. Marrero
Diabetes Care Mar 2016, dc151264; DOI: 10.2337/dc15-1264

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Impact of CMS Competitive Bidding Program on Medicare Beneficiary Safety and Access to Diabetes Testing Supplies: A Retrospective, Longitudinal Analysis
Gary A. Puckrein, Gail Nunlee-Bland, Farhad Zangeneh, Jaime A. Davidson, Robert A. Vigersky, Liou Xu, Christopher G. Parkin, David G. Marrero
Diabetes Care Mar 2016, dc151264; DOI: 10.2337/dc15-1264
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© 2021 by the American Diabetes Association. Diabetes Care Print ISSN: 0149-5992, Online ISSN: 1935-5548.