HealthDay News — According to a study published in Health Affairs, narrow-network health insurance plans have lower monthly premiums that larger-network plans.

Daniel Polsky, PhD, from the University of Pennsylvania in Philadelphia, and colleagues estimated the correlation between provider network breadth and plan premiums. 

They used data from all silver plans offered in 2014 health insurance exchanges in the 50 states and the District of Columbia.

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The researchers found that for plans of otherwise equivalent design within a market, after they controlled for issuer-specific pricing strategy, the monthly premium was 6.7% less expensive for a plan with an extra-small network than for a plan with a large network.

“Our findings confirming lower premiums for narrow-network plans have important policy implications for the successful implementation of narrow networks in the health insurance Marketplaces,” the authors write. “The lower premiums from narrow networks help reduce the number of uninsured people and reduce the cost of achieving that policy objective.”


Polsky D, Cidav Z and Swanson A. “Marketplace Plans With Narrow Physician Networks Feature Lower Monthly Premiums Than Plans With Larger Networks”. Health Affairs. 2016.  35(10): 1842-1848.

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