CK (creatine kinase) test cost in Chicago, IL — inpatient
In Chicago-Naperville-Elgin, IL-IN, 39 hospitals list a cash price for creatine kinase (CK) blood test, total as an inpatient: from $5.75 to $206.00, with a median of $55.00. The lowest listed price is at Uchicago Medicine AdventHealth Bolingbrook and 3 other hospitals — $49.25 less than the median here. Across Illinois, the median is $61.50 at 113 hospitals.
Cash prices at 39 facilities across 28 cities for code 82550, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Mar 17, 2025 and Apr 1, 2026.
Lowest$5.75Uchicago Medicine AdventHealth Bolingbrook + 3 more
Median$55.00half pay less
Highest$206.00in this market
Difference35.8×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Chicago-Naperville-Elgin, IL-IN.
median
Lowest $5.75Highest $206.00
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC CK (CPK) TOTAL - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC CK (CPK) TOTAL - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC CREATINE KINASE (CK) TOTAL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC CREATINE KINASE (CPK) TOTAL - CK ISOENZYMES - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC CREATINE KINASE (CK) TOTAL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC CREATINE KINASE (CPK) TOTAL - CK ISOENZYMES - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC CK (CPK) TOTAL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC CREATINE KINASE (CK) TOTAL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC CREATINE KINASE (CPK) TOTAL - CK ISOENZYMES - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC CREATINE KINASE (CK) TOTAL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC CK (CPK) TOTAL - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC CK (CPK) TOTAL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC CK (CPK) TOTAL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC CREATINE KINASE (CPK) TOTAL - CK ISOENZYMES - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC CK (CPK) TOTAL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC CK (CPK) TOTAL - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| John H. Stroger, Jr. Hospital Chicago, IL · (312) 864-6000 CREATINE KINASE (CPK) TOTAL | $11.90 | $17.00 | $1.83–$24.09 | 30% | — source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL R Creatine Kinase (Cpk) | $24.05 | $37.00 | $6.03–$19.80 | 35% | — source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL R Creatine Kinase (Cpk) | $24.05 | $37.00 | $6.03–$19.80 | 35% | — source file |
| Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC CK TOTAL | $28.38 | $86.00 | $6.51–$27.24 | 67% | — source file |
| Franciscan Health Munster Munster, IN · (219) 922-4200 Cpk Total 150 | $32.59 | $153.00 | — | 79% | — source file |
| Louis A Weiss Memorial Hospital Chicago, IL · (773) 878-8700 82550 CREATINE KINASE(CK),(CPK) TOTAL | $36.43 | $107.14 | $69.64 | 66% | Mar 17, 2025 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB R CREATINE KINASE (CPK) | $37.00 | $37.00 | — | — | Apr 1, 2026 source file |
| Endeavor Health Highland Park Hospital Highland Park, IL HB R CREATINE KINASE (CPK) | $37.00 | $37.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB R CREATINE KINASE (CPK) | $37.00 | $37.00 | — | — | Apr 1, 2026 source file |
| Franciscan Health Dyer Dyer, IN · (219) 865-2141 Cpk Total 150 | $41.31 | $153.00 | $5.83–$114.75 | 73% | — source file |
| La Rabida Children's Hospital Chicago, IL · (773) 363-6700 CPK | $42.48 | $42.48 | — | — | Apr 1, 2026 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Creatine Phosphokinase-Serum-Laf | $43.00 | $43.00 | — | — | Apr 1, 2026 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Total Ck Assay-Laf | $43.00 | $43.00 | — | — | Apr 1, 2026 source file |
| Franciscan Health Rensselaer Rensselaer, IN · (219) 866-5141 Cpk Total 150 | $46.54 | $130.00 | $5.83–$104.00 | 64% | — source file |
| Franciscan Health Crown Point Crown Point, IN · (219) 757-6100 Cpk Total 150 | $49.79 | $193.00 | $193.00 | 74% | — source file |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 CK TOTAL | $55.00 | $110.00 | $48.07–$99.00 | 50% | Nov 4, 2025 source file |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 CK TOTAL | $55.00 | $110.00 | $48.07–$88.00 | 50% | Nov 4, 2025 source file |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 CK TOTAL | $55.00 | $110.00 | $48.07–$88.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 CK TOTAL | $55.00 | $110.00 | $48.07–$88.00 | 50% | Nov 4, 2025 source file |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 CK TOTAL | $55.00 | $110.00 | $48.07–$88.00 | 50% | Nov 4, 2025 source file |
| Advocate South Suburban Hospital Hazel Crest, IL CK TOTAL | $55.00 | $110.00 | $48.07–$88.00 | 50% | Nov 4, 2025 source file |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 CK TOTAL | $55.00 | $110.00 | $48.07–$88.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL CK TOTAL | $55.00 | $110.00 | $48.07–$88.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL CK TOTAL | $55.00 | $110.00 | $48.07–$88.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 CK TOTAL | $55.00 | $110.00 | $48.07–$88.00 | 50% | Nov 4, 2025 source file |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 CK TOTAL | $55.00 | $110.00 | $48.07–$88.00 | 50% | Nov 4, 2025 source file |
| Mercyhealth Hospital & Medical Center - Harvard Harvard, IL · (815) 943-5431 CHG CREATINE KINASE TOTAL | $67.60 | $90.14 | — | 25% | Mar 1, 2026 source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL Creatine Kinase (Cpk)* | $68.25 | $105.00 | $17.12–$56.18 | 35% | — source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL Creatine Kinase (Cpk)* | $68.25 | $105.00 | $17.12–$56.18 | 35% | — source file |
| Resilience Healthcare West Suburban Medical Center Oak Park, IL · (708) 383-6200 82550 CREATINE KINASE(CK),(CPK) TOTAL | $69.37 | $204.02 | $132.61 | 66% | Mar 17, 2025 source file |
| Resilience Healthcare West Suburban Medical Center Oak Park, IL · (708) 383-6200 Creatine Kinase | $69.37 | $204.02 | $132.61 | 66% | Mar 17, 2025 source file |
| Louis A Weiss Memorial Hospital Chicago, IL · (773) 878-8700 Creatine Kinase | $69.37 | $204.02 | $132.61 | 66% | Mar 17, 2025 source file |
| Mercyhealth Crystal Lake Hospital & Medical Center Crystal Lake, IL · (792) 220-5500 CHG CREATINE KINASE TOTAL | $69.46 | $92.61 | — | 25% | Mar 1, 2026 source file |
| Northwest Health - Porter Valparaiso, IN · (219) 983-8300 Creatine Kinase | $72.36 | $201.00 | $48.24–$168.84 | 64% | Apr 1, 2026 source file |
| Northwest Health - Porter Valparaiso, IN · (219) 983-8300 Creatine Kinase w/Reflex CKMB/Relative Index | $72.36 | $201.00 | $48.24–$168.84 | 64% | Apr 1, 2026 source file |
| Northwest Health - Porter Valparaiso, IN · (219) 983-8300 82550 CREATINE KINASE TOTAL | $72.36 | $201.00 | $48.24–$168.84 | 64% | Apr 1, 2026 source file |
| Northwest Community Hospital Arlington Heights, IL · (847) 618-1000 Hb Assay Of Ck (Cpk) | $100.00 | $100.00 | — | — | Apr 1, 2026 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB CREATINE KINASE (CPK)* | $105.00 | $105.00 | — | — | Apr 1, 2026 source file |
| Endeavor Health Highland Park Hospital Highland Park, IL HB CREATINE KINASE (CPK)* | $105.00 | $105.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB CREATINE KINASE (CPK)* | $105.00 | $105.00 | — | — | Apr 1, 2026 source file |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H CREATINE KINASE (CK) SERUM | $109.90 | $157.00 | $58.09–$3,678.00 | 30% | — source file |
| Elmhurst Memorial Hospital Elmhurst, IL · (331) 221-1000 HC CREATINE KINASE (CK)(CPK) TOTAL | $132.00 | $132.00 | — | — | Apr 1, 2026 source file |
| Edward Hospital Naperville, IL · (630) 527-3000 HC CREATINE KINASE (CK)(CPK) TOTAL | $132.00 | $132.00 | — | — | Apr 1, 2026 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Total Ck Assay Repeat | $133.00 | $133.00 | — | — | Apr 1, 2026 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Total Ck Assay | $133.00 | $133.00 | — | — | Apr 1, 2026 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Creatine Phosphokinase-Serum | $133.00 | $133.00 | — | — | Apr 1, 2026 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Emergency Total Ck Assay | $133.00 | $133.00 | — | — | Apr 1, 2026 source file |
| Ingalls Memorial Hospital Harvey, IL · (708) 333-2300 Hc Total Ck Assay | $206.00 | $206.00 | — | — | Apr 1, 2026 source file |
| Uchicago Medicine Northwest Indiana Crown Point, IN · (312) 755-4706 HC CREATINE PHOSPHOKINASE-SERUM | $206.00 | $206.00 | — | — | Apr 1, 2026 source file |
| Ingalls Memorial Hospital Harvey, IL · (708) 333-2300 Hc Creatine Phosphokinase-Serum | $206.00 | $206.00 | — | — | Apr 1, 2026 source file |
Inpatient: lowest $5.75, median $55.00, highest $206.00 — a 35.8× difference within the same market.
As an outpatient, the same code is billed by 62 facilities here, median $54.64 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 19 of 22 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 3 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 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.