Publications by authors named "David S P Hopkins"

Background: There are a limited number of studies investigating the relationship between primary care physician (PCP) characteristics and the quality of care they deliver.

Objective: To examine the association between PCP performance and physician age, solo versus group affiliation, training, and participation in California's Affordable Care Act (ACA) exchange.

Design: Observational study of 2013-2014 data from Healthcare Effectiveness Data and Information Set (HEDIS) measures and select physician characteristics.

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Purpose: Most patients, providers, and payers make decisions about cancer hospitals without any objective data regarding quality or outcomes. We developed two online resources allowing users to search and compare timely data regarding hospital cancer surgery volumes.

Methods: Hospital cancer surgery volumes for all California hospitals were calculated using ICD-9 coded hospital discharge summary data.

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Objective: Some argue that health plans have minimal impacts on quality of care and that quality data collection should focus only on physician organizations. We investigate the relative impact of physician organizations and health plans on quality measures.

Design: Statistical analysis of data on 9 Healthcare Effectiveness Data and Information Set (HEDIS) measures from 6 health plans and 159 provider organizations.

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