ArticleHealth economics2019
The formation of physician patient sharing networks in medicare: Exploring the effect of hospital affiliation.
Article in Health economics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
What it found
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Who cites it
11 citing papers in PubMed.
- Dissecting medical referrals in health services: role of physician professional networks.BMC health services research · 2026Article
- When clinicians group together: a scoping review of clustering in patient-sharing networks.BMC health services research · 2026Article
- Physician patient sharing relationships within insurance plan networks.Health services research · 2023Article
- Observational
- Provider Network Structure and Black-to-White Disparity Gaps for Medicare Patients with Diabetes: County-Level Analysis of Cost, Utilization, and Clinical Care.Journal of general internal medicine · 2022Article
- Association of Multiple Hospital Affiliations With Clinician Service Use, Breadth of Procedures, and Costs.JAMA network open · 2021Observational
- Making sense of the French public hospital system: a network-based approach to hospital clustering using unsupervised learning methods.BMC health services research · 2021Article
- On the Network Transmission Mechanisms of Disease-Specific Healthcare Expenditure Spillovers: Evidence from the Connectedness Network Analyses.Healthcare (Basel, Switzerland) · 2021Article
- The Effect of Interdependences of Referral Behaviors on the Quality of Ambulatory Care: Evidence from Taiwan.Risk management and healthcare policy · 2021Article
- A network-based method with privacy-preserving for identifying influential providers in large healthcare service systems.Future generations computer systems : FGCS · 2020Article
- The formation of physician patient sharing networks in medicare: Exploring the effect of hospital affiliation.Health economics · 2019Article
Corrections and comments
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Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study explores the forces that drive the formation of physician patient sharing networks. In particular, I examine the degree to which hospital affiliation drives physicians' sharing of Medicare patients. Using a revealed preference framework where observed network links are taken to be pairwise stable, I estimate the physicians' pair-specific values using a tetrad maximum score estimator that is robust to the presence of unobserved physician specific characteristics. I also control for a number of potentially confounding patient sharing channels, such as (a) common physician group or hospital system affiliation, (b) physician homophily, (c) knowledge complementarity, (d) patient side considerations related to both geographic proximity and insurance network participation, and (e) spillover from other collaborations. Focusing on the Chicago hospital referral region, I find that shared hospital affiliation accounts for 36.5% of the average pair-specific utility from a link. Implications for reducing care fragmentation are discussed.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.