Prothrombin time (blood clotting test) in Green Bay, WI costs $13 to $32. Here's every hospital's price.
5 hospitals in the Green Bay, WI metro area publish a cash price for prothrombin time (blood clotting test) (CPT 85610). We read their files every month so you don't have to.
Across the Green Bay, WI metro area, 5 hospitals list a cash price for prothrombin time (blood clotting test) (CPT 85610). The lowest is $13 at Bellin Memorial Hospital, the median is $32 and the highest is $32 at Hshs St Clare Memorial Hospital. The most expensive hospital lists 2.5 times the cheapest for the same code.
The Green Bay, WI median of $32 is 34% above the national median of $24 across 1479 US hospitals with a cash price for this code.
6 of these hospitals also publish the rates they negotiated with insurers, from $1 to $99. 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 November 2025 and June 2026.
Sorted by cash price
Hospital facility fee onlyGreen Bay · 2 mi · File Jun 2026
Green Bay · 3 mi · File Nov 2025
Green Bay · 2 mi · File Mar 2026
Green Bay · 5 mi · File Mar 2026
Oconto Falls · 28 mi · File Mar 2026
What's in the price
The hospital facility fee for CPT 85610. 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 85610, in writing, and whether it covers facility, physician and anesthesia."
About prothrombin time (blood clotting test)
CPT 85610 is a prothrombin time (PT), usually reported with INR. It measures how quickly blood clots and is used to monitor warfarin therapy, to check liver function and before surgery. It is a single blood test.
What the price covers
The laboratory analysis only. The blood draw is a separate small charge. Patients on warfarin often have this test monthly, so the price matters more than it looks; finger-stick INR at an anticoagulation clinic or at home is often cheaper.
Why prices vary
A PT/INR costs a laboratory very little to run, yet hospital list prices range from single digits to well over $100. For recurring tests, independent laboratories and anticoagulation clinics are usually far cheaper than hospital labs.
Questions to ask
- What is the self-pay price for 85610 and the draw fee?
- If I need this monthly, is there a cheaper standing arrangement?
- Can I use a home INR meter instead?