Payers shown: Blue Shield of California · all plans together
Prices shown: every in-person setting
Doctor’s fee or facility fee? These are doctors' (professional) fees only. If this is done in a hospital or surgery center, the facility bills its own fee on top — for the room, nurses and equipment — often larger than the doctor's. That fee is not included here.
County
Providers
Lowest
25th pct
Median
75th pct
Highest
vs Medicare
“x Medicare” compares each price with what original Medicare pays for the same lab test under its clinical laboratory fee schedule (26CLABQ4, in force from 2026-10-01): one national price, the same in every state. Insurers write their contracts as a share of Medicare, so 1.3x means the insurer pays 30% more than Medicare would; Medicare Advantage plans generally pay close to 1.0x.
Counties with fewer than five providers are not shown. A price
in a county with one or two providers would be those providers’ own price;
provider-level detail is not published here, but
this specific data can be requested here. A provider is placed in the county of
the practice address it registered with the federal NPI registry.