Doing More for More: Unintended Consequences of Financial Incentives for Oncology Specialty Care.

O'Neil B, Graves AJ, Barocas DA, Chang SS, Penson DF, Resnick MJ
J Natl Cancer Inst. 2016 108 (2)

PMID: 26582063 · PMCID: PMC6061232 · DOI:10.1093/jnci/djv331

BACKGROUND - Specialty care remains a significant contributor to health care spending but largely unaddressed in novel payment models aimed at promoting value-based delivery. Bladder cancer, chiefly managed by subspecialists, is among the most costly. In 2005, Centers for Medicare and Medicaid Services (CMS) dramatically increased physician payment for office-based interventions for bladder cancer to shift care from higher cost facilities, but the impact is unknown. This study evaluated the effect of financial incentives on patterns of fee-for-service (FFS) bladder cancer care.

METHODS - Data from a 5% sample of Medicare beneficiaries from 2001-2013 were evaluated using interrupted time-series analysis with segmented regression. Primary outcomes were the effects of CMS fee modifications on utilization and site of service for procedures associated with the diagnosis and treatment of bladder cancer. Rates of related bladder cancer procedures that were not affected by the fee change were concurrent controls. Finally, the effect of payment changes on both diagnostic yield and need for redundant procedures were studied. All statistical tests were two-sided.

RESULTS - Utilization of clinic-based procedures increased by 644% (95% confidence interval [CI] = 584% to 704%) after the fee change, but without reciprocal decline in facility-based procedures. Procedures unaffected by the fee incentive remained unchanged throughout the study period. Diagnostic yield decreased by 17.0% (95% CI = 12.7% to 21.3%), and use of redundant office-based procedures increased by 76.0% (95% CI = 59% to 93%).

CONCLUSIONS - Financial incentives in bladder cancer care have unintended and costly consequences in the current FFS environment. The observed price sensitivity is likely to remain a major issue in novel payment models failing to incorporate procedure-based specialty physicians.

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MeSH Terms (13)

Ambulatory Surgical Procedures Fee-for-Service Plans Female Humans Male Medicaid Medical Oncology Medicare Motivation Patient Acceptance of Health Care Physicians United States Urinary Bladder Neoplasms

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