PT/INR blood test cost in Duluth, MN
In Duluth, MN-WI, 12 hospitals list a cash price for prothrombin time (PT/INR) clotting test: from $6.24 to $110.16, with a median of $42.90. The lowest listed price is at Range Regional Health Services — $36.66 less than the median here. Across Minnesota, the median is $33.15 at 81 hospitals.
- The median here, $42.90, is 36% above the US median of $31.65.
- That is 10.0× Medicare's 2026 national rate for the same service ($4.29).
- Duluth, MN ranks 2nd of 2 metro areas in Minnesota by median, cheapest first.
- Every hospital here lists a cash price below its full list price.
Cash prices at 12 facilities across 9 cities for code 85610, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Jan 1, 2026 and Sep 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 Duluth, MN-WI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Range Regional Health Services lowest Hibbing, MN · (218) 362-6730 HC INR POCT File of Jan 29, 2026 · source file | $6.24 | $14.67 | $4.22–$177.03 | 57% |
| Range Regional Health Services Hibbing, MN · (218) 362-6730 HC PT MIXING STUDIES File of Jan 29, 2026 · source file | $6.38 | $15.00 | $4.22–$177.03 | 57% |
| Community Memorial Hospital Cloquet, MN · (218) 879-4641 PROTHROMBIN TIME/INR(RAD ONLY)+1 more line at this price File of Apr 1, 2026 · source file | $32.00 | $50.00 | $50.00 | 36% |
| Range Regional Health Services Hibbing, MN · (218) 362-6730 HC PROTHROMBIN TIME/INR File of Jan 29, 2026 · source file | $32.38 | $76.17 | $4.22–$177.03 | 57% |
| Range Regional Health Services Hibbing, MN · (218) 362-6730 HC INR SP COAG File of Jan 29, 2026 · source file | $33.15 | $78.00 | $4.22–$177.03 | 58% |
| Aspirus St. Luke’s Hospital Duluth, MN · (218) 249-2449 Prothrombin Time Beaker1+1 more line at this price File of Apr 1, 2026 · source file | $38.62 | $71.00 | — | 46% |
| Essentia Health Virginia Virginia, MN · (218) 741-3340 PROTHROMBIN TIME (PT/INR) File of Jan 1, 2026 · source file | $40.82 | $65.00 | $14.95–$58.76 | 37% |
| Essentia Health St. Mary's Children's Hospital Duluth, MN PROTHROMBIN TIME (PT/INR) File of Jan 1, 2026 · source file | $42.90 | $65.00 | $21.52–$55.90 | 34% |
| Essentia Health Duluth Duluth, MN · (218) 786-2652 PROTHROMBIN TIME (PT/INR) File of Jan 1, 2026 · source file | $42.90 | $65.00 | $21.52–$55.90 | 34% |
| Essentia Health St. Mary's Medical Center Duluth, MN · (218) 786-3574 PROTHROMBIN TIME (PT/INR) File of Jan 1, 2026 · source file | $42.90 | $65.00 | $21.52–$55.90 | 34% |
| Essentia Health Northern Pines Aurora, MN · (218) 229-4222 PROTHROMBIN TIME (PT/INR) QW+1 more line at this price File of Jan 1, 2026 · source file | $48.04 | $65.00 | $24.95–$65.00 | 26% |
| Essentia Health Moose Lake Moose Lake, MN · (218) 786-1367 PROTHROMBIN TIME (PT/INR)+1 more line at this price File of Jan 1, 2026 · source file | $48.04 | $65.00 | $25.87–$58.82 | 26% |
| Essentia Health St Marys Hospital-Superior Superior, WI · (715) 817-7000 PROTHROMBIN TIME (PT/INR)+1 more line at this price File of Jan 1, 2026 · source file | $48.04 | $65.00 | $20.80–$58.82 | 26% |
| The Cook Hospital Cook, MN · (218) 666-5945 INR TL+1 more line at this price File of Aug 10, 2026 · source file | $49.50 | $75.00 | — | 34% |
| Ely-Bloomenson Community Hospital Ely, MN · (218) 365-3271 Blood test, clotting time File of Sep 1, 2026 · source file | $110.16 | $136.00 | $46.50–$136.00 | 19% |
Outpatient: lowest $6.24, median $42.90, highest $110.16 — a 17.7× difference within the same market.
As an inpatient, the same code is billed by 11 facilities here, median $42.90. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 10 of 10 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What PT/INR blood test is, what the price covers and why prices differ: PT/INR blood test explained.