Bill of Health

We priced

Kidney function test

A blood test panel assessing how the kidneys are working.

41 hospitals · 166 published rates Cheapest $2.44 · dearest $212

Sorted cheapest first. A published figure that behaves like a placeholder rather than a real price — one cent, or a figure orders of magnitude below what other hospitals publish for the same billing code — never leads this order. It stays listed, after every other figure, ordered by its own amount among the others like it.

See these on a map →

Louis A. Weiss Memorial Hospital
Chicago 4 published rates
$8.68
negotiated rate
MOUNT SINAI HOSPITAL MEDICAL CENTER
2 published rates
$8.68
negotiated rate
Advocate Illinois Masonic Medical Center
Chicago 4 published rates
$8.68
negotiated rate
Advocate Childrens Hospital - Park Ridge
Park Ridge 4 published rates
$8.68
negotiated rate
Advocate Childrens Hospital - Oak Lawn
Oak Lawn 4 published rates
$8.68
negotiated rate
MacNeal Hospital Gottlieb Community Health Services Corporation
Berwyn 4 published rates
$8.68
negotiated rate
Ann & Robert H. Lurie Children's Hospital of Chicago
Chicago 2 published rates
$84 – $92
negotiated rate
Northwestern Medicine Marianjoy Rehabilitation Hospital
Wheaton 2 published rates
$191 – $212
negotiated rate

Comparisons against other hospitals were computed on 2 November 2026. Each price carries its own fetch date; a comparison is a snapshot of what other hospitals had published when it ran, not a standing fact.

Why a range? One insurer publishes different rates for different plans at the same hospital — a PPO and an HMO under the same name can differ several times over. We show what the hospital published rather than collapsing it into a single number that might not be yours.