Partial thromboplastin time (blood clotting test) in Riverside, CA costs $1 to $388. Here's every hospital's price.
20 hospitals in the Riverside-San Bernardino-Ontario, CA metro area publish a cash price for partial thromboplastin time (blood clotting test) (CPT 85730). We read their files every month so you don't have to.
Across the Riverside-San Bernardino-Ontario, CA metro area, 20 hospitals list a cash price for partial thromboplastin time (blood clotting test) (CPT 85730). The lowest is $1 at Eisenhower Medical Center, the median is $6 and the highest is $388 at Barstow Community Hospital. The most expensive hospital lists 341 times the cheapest for the same code.
The Riverside, CA median of $6 is 82% below the national median of $34 across 1628 US hospitals with a cash price for this code.
20 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. 14 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.
Sorted by cash price
Hospital facility fee onlyRancho Mirage · 56 mi · File Apr 2026
San Bernardino · 71 mi · File Sep 2026
San Bernardino · 73 mi · File Feb 2026
Hemet · 72 mi · File Jun 2026
Victorville · 66 mi · File May 2026
Sun City · 82 mi · File May 2026
Moreno Valley · 75 mi · File Mar 2026
Apple Valley · 57 mi · File Apr 2026
Montclair · 95 mi · File Sep 2026
Banning · 63 mi · File May 2026
What's in the price
The hospital facility fee for CPT 85730. The doctor, anesthesia and lab work usually bill separately.
Cash vs. insured
Cash is what you pay without insurance. With insurance you pay a share of the negotiated rate, which can be higher than cash. You may ask for the cash price.
What to say on the phone
"I'd like the self-pay price for CPT 85730, in writing, and whether it covers facility, physician and anesthesia."
About partial thromboplastin time (blood clotting test)
CPT 85730 is a partial thromboplastin time (PTT or aPTT), a clotting test that checks a different part of the clotting cascade from prothrombin time. It is used to monitor heparin, to investigate unexplained bleeding or bruising, and before surgery. One blood draw.
What the price covers
The laboratory analysis only. The blood draw is a separate small charge. It is often ordered together with prothrombin time (85610); the two are separate codes and separate prices.
Why prices vary
The test runs on automated coagulation analyzers and costs a laboratory a few dollars. Hospital list prices range from under $10 to over $150 for the same result. Independent laboratories are typically far cheaper.
Questions to ask
- What is the self-pay price for 85730, and is PT (85610) also being billed?
- Is the blood draw extra?
- Can the sample be sent to an outside laboratory?
Hospitals in Riverside, CA without a price for this procedure
Listed so you know who to call. The reason is what we found on their website.
- Arrowhead Regional Medical CenterWebsite blocks automated reading
- Bear Valley Community HospitalNo website on record
- Colorado River Medical CenterNo website on record
- Corona Regional Medical CenterWebsite blocks automated reading
- Desert Regional Medical CenterWebsite blocks automated reading
- Hi-Desert Medical CenterWebsite blocks automated reading
- John F Kennedy Memorial HospitalWebsite blocks automated reading
- Mountains Community HospitalNo website on record
- Palo Verde HospitalNo website on record
- Parkview Community Hospital Medical CenterNo price file found
- Redlands Community HospitalWebsite blocks automated reading
- Riverside Community HospitalNo price file found
- Southwest Healthcare Rancho Springs HospitalWebsite blocks automated reading
- Temecula Valley HospitalWebsite blocks automated reading