Here are five things to know:
1. Medicare claims for a random 39 percent sample of 987,000 Medicare beneficiaries 65 and older in five states were reviewed.
2. Algorithms were designed and used to identify direct and indirect connections among physicians.
3. The rate of ambulatory care sensitive admissions varied across networks.
4. Preventable admissions were more common among patients visiting lower physicians in the lower performing network at a hospital than the higher performing network, according to a release by Weill Cornell.
5. The study emphasizes that ACOs, hospitals and insurers may want to identify these referral networks and learn from the high performing ones as well as work with the lower performing networks to improve healthcare quality.
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