CK (creatine kinase) test cost in Washington, DC
In Washington-Arlington-Alexandria, DC-VA-MD-WV, 18 hospitals list a cash price for creatine kinase (CK) blood test, total: from $15.88 to $591.03, with a median of $85.50. The lowest listed price is at MedStar Montgomery Medical Center — $69.62 less than the median here. Across District of Columbia, the median is $60.00 at 5 hospitals.
Cash prices at 18 facilities across 14 cities for code 82550, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 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 Washington-Arlington-Alexandria, DC-VA-MD-WV.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| MedStar Montgomery Medical Center lowest Olney, MD · (301) 774-8882 CREATINE KINASE CK, CPK TOTAL | $15.88 | $16.20 | $15.88–$16.20 | 2% | Apr 1, 2026 source file |
| MedStar Montgomery Medical Center lowest Olney, MD · (301) 774-8882 CPK | $15.88 | $16.20 | $15.88–$16.20 | 2% | Apr 1, 2026 source file |
| MedStar Southern Hospital Center Clinton, MD · (301) 868-8000 CREATINE KINASE CK, CPK TOTAL | $17.25 | $17.60 | $17.25–$17.60 | 2% | Apr 1, 2026 source file |
| MedStar Southern Hospital Center Clinton, MD · (301) 868-8000 CPK | $17.25 | $17.60 | $17.25–$17.60 | 2% | Apr 1, 2026 source file |
| Children's National Hospital Washington, DC · (202) 476-5000 CK Isoenzymes with Total CK | $24.50 | $49.00 | $6.51–$293.75 | 50% | — source file |
| Jefferson Medical Center Ranson, WV · (304) 728-1600 ASSAY OF CK (CPK) | $54.00 | $108.00 | — | 50% | — source file |
| National Rehabilitation Hospital Washington, DC CPK | $55.45 | $85.31 | $6.38–$72.51 | 35% | Apr 1, 2026 source file |
| National Rehabilitation Hospital Washington, DC CREATINE KINASE CK CPK TOTAL | $55.45 | $85.31 | $6.38–$72.51 | 35% | Apr 1, 2026 source file |
| Children's National Rehabilitation and Specialized Care Washington, DC CK ISOENZYMES W TOTAL CK | $60.00 | $120.00 | $5.76–$270.00 | 50% | — source file |
| Children's National Rehabilitation and Specialized Care Washington, DC CREATINE KINASE | $60.00 | $120.00 | $5.76–$270.00 | 50% | — source file |
| Sentara Northern Virginia Medical Center Woodbridge, VA · (703) 523-1000 Chgl Creatine Kinase: Total (Lc) | $69.00 | $138.00 | — | 50% | Apr 1, 2026 source file |
| Sentara Northern Virginia Medical Center Woodbridge, VA · (703) 523-1000 Chgl Cpk | $69.00 | $138.00 | — | 50% | Apr 1, 2026 source file |
| MedStar Washington Hospital Center Washington, DC · (202) 877-7000 CPK | $74.14 | $114.06 | $6.51–$96.95 | 35% | Apr 1, 2026 source file |
| MedStar Washington Hospital Center Washington, DC · (202) 877-7000 CREATINE KINASE CK CPK TOTAL | $74.14 | $114.06 | $6.51–$96.95 | 35% | Apr 1, 2026 source file |
| Inova Mount Vernon Hospital Alexandria, VA · (703) 664-7105 HC CREATINE KINASE TOTAL | $85.50 | $171.00 | $6.47–$133.38 | 50% | — source file |
| Inova Alexandria Hospital Alexandria, VA · (703) 504-3167 HC CREATINE KINASE TOTAL | $85.50 | $171.00 | $6.47–$133.38 | 50% | — source file |
| Inova Loudoun Hospital Leesburg, VA · (703) 858-6600 HC CREATINE KINASE TOTAL | $85.50 | $171.00 | $6.47–$133.38 | 50% | — source file |
| Inova Fair Oaks Hospital Fairfax, VA · (703) 391-4170 HC CREATINE KINASE TOTAL | $85.50 | $171.00 | $6.47–$133.38 | 50% | — source file |
| Inova Fairfax Hospital Falls Church, VA · (703) 698-1110 HC CREATINE KINASE TOTAL | $85.50 | $171.00 | $6.47–$133.38 | 50% | — source file |
| Children's National Hospital Washington, DC · (202) 476-5000 UMC CK ISOENZYMES CK TOTAL | $94.50 | $189.00 | $6.51–$293.75 | 50% | — source file |
| Children's National Hospital Washington, DC · (202) 476-5000 Creatine Kinase | $99.50 | $199.00 | $6.51–$293.75 | 50% | — source file |
| Fauquier Health Warrenton, VA · (540) 316-5000 Creatine kinase (CK), (CPK); total | $118.40 | $296.00 | $8.19 | 60% | — source file |
| MedStar Georgetown Hospital Northwest Washington, DC · (202) 784-3000 CREATINE KINASE CK CPK TOTAL | $152.68 | $234.89 | $6.51–$211.40 | 35% | Apr 1, 2026 source file |
| MedStar Georgetown Hospital Northwest Washington, DC · (202) 784-3000 CPK | $152.68 | $234.89 | $6.51–$211.40 | 35% | Apr 1, 2026 source file |
| Spotsylvania Regional Medical Center Fredericksburg, VA · (540) 498-4000 Creatine kinase (CK), (CPK); total | $476.28 | $476.28 | $6.51–$34.16 | — | Sep 1, 2026 source file |
| Spotsylvania Regional Medical Center Fredericksburg, VA · (540) 498-4000 CREAT KINASE (CK) TOTAL | $476.28 | $476.28 | $90.49–$428.65 | — | Sep 1, 2026 source file |
| Stonesprings Hospital Center Dulles, VA · (571) 349-4000 Creatine kinase (CK), (CPK); total | $590.77 | $590.77 | $6.51–$34.57 | — | Sep 1, 2026 source file |
| Stonesprings Hospital Center Dulles, VA · (571) 349-4000 CREAT KINASE (CK) TOTAL | $590.77 | $590.77 | $419.45 | — | Sep 1, 2026 source file |
| Reston Hospital Center Vienna, VA · (703) 689-9000 CREAT KINASE (CK) TOTAL | $591.03 | $591.03 | $112.30–$531.93 | — | Sep 1, 2026 source file |
| Reston Hospital Center Vienna, VA · (703) 689-9000 Creatine kinase (CK), (CPK); total | $591.03 | $591.03 | $6.51–$34.19 | — | Sep 1, 2026 source file |
Outpatient: lowest $15.88, median $85.50, highest $591.03 — a 37.2× difference within the same market.
As an inpatient, the same code is billed by 11 facilities here, median $85.50. 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 12 of 16 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.