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The influence of payer mix on electronic prescribing by physicians

Au, David W.; Menachemi, Nir; Panjamapirom, Anantachai; Brooks, Robert G.

doi: 10.1097/HMR.0b013e3181dc8246
Features

Background: Limited studies have examined electronic prescribing (e-prescribing) adoption in physician office practices. Specifically, none have explored the influence of payer mix on e-prescribing adoption among physicians.

Purpose: This study examines the impact of practice composition of Medicare, Medicaid, and private insurance on e-prescribing adoption among physicians.

Methodology/Approach: Logistic regression was used to analyze data collected from a large-scale information technology-related survey of Florida physicians.

Findings: After controlling for practice and physician characteristics, physicians with the highest (odds ratio = 1.67, 95% confidence interval = 1.01-2.78) and above-average (odds ratio [OR] = 1.83, 95% confidence interval = 1.04-3.22) volume of Medicare patients were significantly more likely to e-prescribe as compared with those in the low-volume category. No differences in adoption were found across all Medicaid and private insurance practice composition categories.

Practice Implications: Our findings support the notion that direct incentives, such as those in the Medicare Modernization Act of 2003, may influence physician adoption of e-prescribing.

David W. Au, is Doctoral Student, Health Services Administration, University of Alabama at Birmingham. E-mail: davidau@uab.edu.

Nir Menachemi, PhD, MPH, is Associate Professor and Director, Doctoral Program in Public Health, University of Alabama at Birmingham. E-mail: nmenachemi@uab.edu.

Anantachai Panjamapirom, MS, MBA, is Doctoral Candidate, Health Services Administration, University of Alabama at Birmingham. E-mail: apirom@uab.edu.

Robert G. Brooks, MD, MBA, MPH, is Professor and Associate Vice President, College ofMedicine, University of South Florida. E-mail: rbrooks@health.usf.edu.

© 2011 Lippincott Williams & Wilkins, Inc.