CK (creatine kinase) test cost in Washington, DC — inpatient
In Washington-Arlington-Alexandria, DC-VA-MD-WV, 9 hospitals list a cash price for creatine kinase (CK) blood test, total as an inpatient: from $24.50 to $152.68, with a median of $85.50. The lowest listed price is at Children's National Hospital — $61.00 less than the median here. Across District of Columbia, the median is $74.14 at 3 hospitals.
Cash prices at 9 facilities across 7 cities for code 82550, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 1, 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 Washington-Arlington-Alexandria, DC-VA-MD-WV.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Children's National Hospital lowest Washington, DC · (202) 476-5000 CK Isoenzymes with Total CK source file | $24.50 | $49.00 | $20.58–$26.80 | 50% |
| Sentara Northern Virginia Medical Center Woodbridge, VA · (703) 523-1000 Chgl Creatine Kinase: Total (Lc)+1 more line at this price File of Apr 1, 2026 · source file | $69.00 | $138.00 | — | 50% |
| MedStar Washington Hospital Center Washington, DC · (202) 877-7000 CPK+1 more line at this price File of Apr 1, 2026 · source file | $74.14 | $114.06 | $33.08–$96.95 | 35% |
| Inova Loudoun Hospital Leesburg, VA · (703) 858-6600 HC CREATINE KINASE TOTAL source file | $85.50 | $171.00 | $6.47–$133.38 | 50% |
| Inova Mount Vernon Hospital Alexandria, VA · (703) 664-7105 HC CREATINE KINASE TOTAL source file | $85.50 | $171.00 | $6.47–$133.38 | 50% |
| Inova Alexandria Hospital Alexandria, VA · (703) 504-3167 HC CREATINE KINASE TOTAL source file | $85.50 | $171.00 | $6.47–$133.38 | 50% |
| Inova Fairfax Hospital Falls Church, VA · (703) 698-1110 HC CREATINE KINASE TOTAL source file | $85.50 | $171.00 | $6.47–$133.38 | 50% |
| Inova Fair Oaks Hospital Fairfax, VA · (703) 391-4170 HC CREATINE KINASE TOTAL source file | $85.50 | $171.00 | $6.47–$133.38 | 50% |
| Children's National Hospital Washington, DC · (202) 476-5000 UMC CK ISOENZYMES CK TOTAL source file | $94.50 | $189.00 | $79.38–$103.38 | 50% |
| Children's National Hospital Washington, DC · (202) 476-5000 Creatine Kinase source file | $99.50 | $199.00 | $83.58–$108.85 | 50% |
| MedStar Georgetown Hospital Northwest Washington, DC · (202) 784-3000 CREATINE KINASE CK CPK TOTAL+1 more line at this price File of Apr 1, 2026 · source file | $152.68 | $234.89 | $82.21–$211.40 | 35% |
Inpatient: lowest $24.50, median $85.50, highest $152.68 — a 6.2× difference within the same market.
As an outpatient, the same code is billed by 16 facilities here, median $85.50 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 8 of 8 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.