Partial thromboplastin time (blood clotting test) in Riverside, CA costs $2 to $388. Here's every hospital's price.

Across the Riverside-San Bernardino-Ontario, CA metro area, 16 hospitals list a cash price for partial thromboplastin time (blood clotting test) (CPT 85730). The lowest is $2 at St Bernardine Medical Center, the median is $6 and the highest is $388 at Barstow Community Hospital. The most expensive hospital lists 174 times the cheapest for the same code.

The Riverside, CA median of $6 is 79% below the national median of $28 across 571 US hospitals with a cash price for this code.

16 of these hospitals also publish the rates they negotiated with insurers, from $1 to $1,016. With insurance you pay a share of the negotiated rate, which is sometimes higher than the cash price; you may ask for the cash price instead.

The files behind these prices are dated between February 2026 and September 2026. 18 other hospitals in the metro area have no readable price for this code: some publish no file, some block automated reading, some leave the code out. They are listed below so you can call them.