A network is the group of clinicians, practices and hospitals that have a contract with your insurer. In-network providers have agreed to a negotiated rate. Out-of-network providers haven’t, and the difference on your bill is not small.
Why this is the decision that matters most in New York. Healthfirst, Fidelis Care, MetroPlus and EmblemHealth all offer coverage under the same program names, and their networks are different — particularly for specialists and for the big Manhattan academic systems. Picking the plan by premium and discovering your doctor isn’t in it is the single most common regret we hear about.
How to check properly:
- Call the practice, not the insurer’s online directory. Directories are stale industry-wide.
- Give the exact plan name, not the carrier. “Do you take Fidelis?” and “Do you take Fidelis Essential Plan 1?” are different questions with different answers.
- Ask whether they’re taking new patients under that plan, which is a separate fact from being in-network.
The hidden case: an in-network hospital can have out-of-network doctors working inside it — anesthesiologists, radiologists, pathologists. That’s the classic surprise bill, and both federal and New York law limit what you can be charged for it. See surprise billing.
Also called: provider network, in-network, out-of-network. Reference: Network (in-network and out-of-network) on Wikipedia — general definition, not New York specifics.
More in Glossary of health coverage and billing terms
- Explanation of benefits (EOB) — The statement from your insurer showing what was billed, what was paid, and what you may owe. It is not a bill.
- Chargemaster — A hospital's internal list price for every service. Almost nobody pays it — except the uninsured who don't ask.
- Charity care — The hospital financial assistance every New York hospital is legally required to run.
This page explains how the system works. It is not medical advice. More.