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The association of insurance plan characteristics with physician patient-sharing network structure
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The association of insurance plan characteristics with physician patient-sharing network structure
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Journal Article
The association of insurance plan characteristics with physician patient-sharing network structure
2021
Overview
Professional and social connections among physicians impact patient outcomes, but little is known about how characteristics of insurance plans are associated with physician patientsharing network structure. We use information from commercially insured enrollees in the 2011 Massachusetts All Payer Claims Database to construct and examine the structure of the physician patient-sharing network using standard and novel social network measures. Using regression analysis, we examine the association of physician patient-sharing network measures with an indicator of whether a patient is enrolled in a health maintenance organization (HMO) or preferred provider organization (PPO), controlling for patient and insurer characteristics and observed health status. We find patients enrolled in HMOs see physicians who are more central and densely embedded in the patient-sharing network. We find HMO patients see PCPs who refer to specialists who are less globally central, even as these specialists are more locally central. Our analysis shows there are small but significant differences in physician patient-sharing network as experienced by patients with HMO versus PPO insurance. Understanding connections between physicians is essential and, similar to previous findings, our results suggest policy choices in the insurance and delivery system that change physician connectivity may have important implications for healthcare delivery, utilization and costs.
Publisher
Springer,Springer US,Springer Nature B.V
Subject
