CK (creatine kinase) test cost in Boise City, ID — inpatient
In Boise City, ID, 4 hospitals list a cash price for creatine kinase (CK) blood test, total as an inpatient: from $14.70 to $42.90, with a median of $28.80. The lowest listed price is at St Luke's Nampa Medical Center and 1 other hospital — $14.10 less than the median here. Across Idaho, the median is $47.25 at 29 hospitals.
Cash prices at 4 facilities across 2 cities for code 82550, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 31, 2026 and Mar 31, 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 Boise City, ID.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| St Luke's Nampa Medical Center lowest Nampa, ID · (208) 505-2000 source file | $14.70 | $14.70 | — | — |
| St Luke's Regional Medical Center lowest Boise, ID · (208) 381-2222 source file | $14.70 | $14.70 | — | — |
| Saint Alphonsus Medical Center - Nampa Nampa, ID · (208) 463-5000 HC Warde 1010700 Creatine Kinase File of Mar 31, 2026 · source file | $42.90 | $66.00 | $5.63–$59.40 | 35% |
| Saint Alphonsus Regional Medical Center - Boise Boise, ID · (208) 367-2121 HC Warde 1010700 Creatine Kinase File of Mar 31, 2026 · source file | $42.90 | $66.00 | $5.63–$66.00 | 35% |
| Saint Alphonsus Regional Medical Center - Boise Boise, ID · (208) 367-2121 HC Creatine Kinase File of Mar 31, 2026 · source file | $44.20 | $68.00 | $5.63–$68.00 | 35% |
| Saint Alphonsus Medical Center - Nampa Nampa, ID · (208) 463-5000 HC Creatine Kinase File of Mar 31, 2026 · source file | $44.20 | $68.00 | $5.63–$61.20 | 35% |
| St Luke's Regional Medical Center Boise, ID · (208) 381-2222 source file | $50.00 | $50.00 | — | — |
| St Luke's Nampa Medical Center Nampa, ID · (208) 505-2000 source file | $50.00 | $50.00 | — | — |
Inpatient: lowest $14.70, median $28.80, highest $42.90 — a 2.9× difference within the same market.
As an outpatient, the same code is billed by 6 facilities here, median $42.90 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 2 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it 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 it is
A creatine kinase (CK) test measures an enzyme released when muscle is damaged. It is used for muscle pain or weakness, after crush injuries or extreme exercise, and in people on statins with muscle symptoms.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.