Partial thromboplastin time (PTT) clotting test in Madison, WI — inpatient
In Madison, WI, 2 hospitals list a cash price for Partial thromboplastin time (PTT) clotting test as an inpatient: from $58.40 to $92.89, with a median of $65.00. The lowest listed price is at Meriter Hospital, Inc.
Cash prices at 2 facilities across 2 cities for code 85730, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Jan 28, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Madison, WI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Meriter Hospital, Inc lowest Madison, WI CHG THROMBOPLAS TIME PARTIAL | $58.40 | $73.00 | 20% | Jan 28, 2026 source file |
| Aspirus Divine Savior Hospital Portage, WI Fac Thromboplastin Time, Partial | $65.00 | $100.00 | 35% | Apr 1, 2026 source file |
| Aspirus Divine Savior Hospital Portage, WI Ptt, Partial Thromboplastin Beaker1 | $65.00 | $100.00 | 35% | Apr 1, 2026 source file |
| Aspirus Divine Savior Hospital Portage, WI THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD | $65.00 | $100.00 | 35% | Apr 1, 2026 source file |
| Meriter Hospital, Inc Madison, WI HC PTT; PLASMA OR WHOLE BLOOD | $92.89 | $116.11 | 20% | Jan 28, 2026 source file |
Inpatient: lowest $58.40, median $65.00, highest $92.89 — a 1.6× difference within the same market.
As an outpatient, the same code is billed by 2 facilities here, median $65.00 — that is the price to compare if you are not being admitted.
What it is
The partial thromboplastin time (PTT or aPTT) test measures how long it takes blood to clot through a different pathway than the PT test. It is used to check for bleeding disorders, before surgery, and to monitor heparin.
What the price covers
The price usually covers the PTT test. The blood draw is often billed separately.