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PricedCare

Prothrombin time (blood clotting test) in San Jose, CA costs $5 to $164. Here's every hospital's price.

5 hospitals in the San Jose-Sunnyvale-Santa Clara, CA 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 San Jose-Sunnyvale-Santa Clara, CA metro area, 5 hospitals list a cash price for prothrombin time (blood clotting test) (CPT 85610). The lowest is $5 at El Camino Health, the median is $90 and the highest is $164 at Stanford Health Care. The most expensive hospital lists 35 times the cheapest for the same code.

The San Jose, CA median of $90 is 283% above the national median of $23 across 1628 US hospitals with a cash price for this code.

4 of these hospitals also publish the rates they negotiated with insurers, from $3 to $8,000. 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 March 2026 and April 2026. 3 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.

$5
lowest cash price in San Jose, CA
El Camino Health · 50 mi
$85 below the median
$90
median cash price
5 hospitals
35×
highest ÷ lowest
same procedure, same metro
5/8
hospitals with a cash price
3 don't · see who

Sorted by cash price

Hospital facility fee only
1
El Camino Health

Mountain View · 50 mi · File Apr 2026

$5
list $19 · lowest of 2 lines
2
Kaiser Foundation Hospital-Santa Clara

Santa Clara · 33 mi · File Apr 2026

$90
list $160 · lowest of 3 lines
3
Kaiser Foundation Hospital-San Jose

San Jose · 33 mi · File Apr 2026

$90
list $160 · lowest of 7 lines
4
Lucile Salter Packard Children's Hsp at Stanford

Palo Alto · 57 mi · File Mar 2026

$113
list $226 · lowest of 8 lines
5
Stanford Health Care

Stanford · 56 mi · File Apr 2026

$164
list $410 · lowest of 3 lines
1

What's in the price

The hospital facility fee for CPT 85610. The doctor, anesthesia and lab work usually bill separately.

2

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.

3

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?

Hospitals in San Jose, CA without a price for this procedure

Listed so you know who to call. The reason is what we found on their website.

Questions people ask