CK (creatine kinase) test cost in San Francisco, CA — inpatient
In San Francisco-Oakland-Fremont, CA, 23 hospitals list a cash price for creatine kinase (CK) blood test, total as an inpatient: from $10.56 to $243.00, with a median of $178.80. The lowest listed price is at Sequoia Hospital — $168.24 less than the median here. Across California, the median is $87.36 at 211 hospitals.
Cash prices at 23 facilities across 16 cities for code 82550, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 23, 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 San Francisco-Oakland-Fremont, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Sequoia Hospital lowest Redwood City, CA · (650) 369-5811 RL-SU-CK | $10.56 | $29.00 | $12.47–$18,346.00 | 64% | Feb 28, 2026 source file |
| St. Rose Hospital Hayward, CA · (510) 782-6200 CREATINEKINASE TOTAL | $61.74 | $205.80 | $144.06–$158.47 | 70% | Feb 23, 2026 source file |
| Kaiser Foundation Hospital - Walnut Creek Walnut Creek, CA · (925) 295-4000 CREATINE KINASE TOTAL | $137.76 | $246.00 | $6.00–$20.00 | 44% | — source file |
| Kaiser Foundation Hospital - Oakland/Richmond Oakland, CA · (510) 752-1000 CREATINE KINASE TOTAL | $137.76 | $246.00 | $6.00–$20.00 | 44% | — source file |
| Kaiser Foundation Hospital - Fremont Fremont, CA · (510) 784-4000 CREATINE KINASE TOTAL | $137.76 | $246.00 | $6.00–$20.00 | 44% | — source file |
| Kaiser Foundation Hospital - San Rafael San Rafael, CA · (415) 444-2000 CREATINE KINASE TOTAL | $137.76 | $246.00 | $6.00–$20.00 | 44% | — source file |
| Kaiser Foundation Hospital - San Leandro San Leandro, CA · (510) 454-1000 CREATINE KINASE TOTAL | $137.76 | $246.00 | $6.00–$20.00 | 44% | — source file |
| Kaiser Foundation Hospital - San Francisco San Francisco, CA · (415) 833-2646 CREATINE KINASE TOTAL | $137.76 | $246.00 | $6.00–$20.00 | 44% | — source file |
| Kaiser Foundation Hospital - Redwood City Redwood City, CA · (650) 299-2000 CREATINE KINASE TOTAL | $137.76 | $246.00 | $6.00–$20.00 | 44% | — source file |
| Kaiser Foundation Hospital - Antioch Antioch, CA · (925) 813-6500 CREATINE KINASE TOTAL | $137.76 | $246.00 | $6.00–$20.00 | 44% | — source file |
| Kaiser Foundation Hospital - South San Francisco South San Francisco, CA · (650) 742-3200 CREATINE KINASE TOTAL | $137.76 | $246.00 | $6.00–$20.00 | 44% | — source file |
| Stanford Health Care Tri-Valley Pleasanton, CA · (925) 847-3000 HC Creatinine Kinase Total | $178.80 | $447.00 | — | 60% | Apr 1, 2026 source file |
| Alta Bates Summit Medical Center - Alta Bates Camp Berkeley, CA · (510) 204-4444 HCHG CORE CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Alta Bates Summit Medical Center - Alta Bates Camp Berkeley, CA · (510) 204-4444 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| California Pacific Medical Center- Van Ness Campus San Francisco, CA · (415) 600-6000 HCHG CORE CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| California Pacific Medical Center- Van Ness Campus San Francisco, CA · (415) 600-6000 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Alta Bates Summit Medical Center - Herrick Campus Berkeley, CA · (510) 204-4444 HCHG CORE CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Alta Bates Summit Medical Center - Herrick Campus Berkeley, CA · (510) 204-4444 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Mills-Peninsula Medical Center Burlingame, CA · (650) 696-5400 HCHG CORE CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Mills-Peninsula Medical Center Burlingame, CA · (650) 696-5400 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Novato Community Hospital Novato, CA · (415) 209-1300 HCHG CORE CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Novato Community Hospital Novato, CA · (415) 209-1300 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Sutter Delta Medical Center Antioch, CA · (925) 779-7200 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Alta Bates Summit Medical Center-Summit Campus-Hawthorne Oakland, CA · (510) 655-4000 HCHG CORE CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Alta Bates Summit Medical Center-Summit Campus-Hawthorne Oakland, CA · (510) 655-4000 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Mills Health Center San Mateo, CA · (650) 696-5400 HCHG CORE CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Mills Health Center San Mateo, CA · (650) 696-5400 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Alta Bates Summit Medical Center Oakland, CA · (510) 655-4000 HCHG CORE CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Alta Bates Summit Medical Center Oakland, CA · (510) 655-4000 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| California Pacific Medical Ctr-Davies Campus Hospital San Francisco, CA · (415) 600-6000 HCHG CORE CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| California Pacific Medical Ctr-Davies Campus Hospital San Francisco, CA · (415) 600-6000 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Eden Medical Center Castro Valley, CA · (510) 537-1234 HCHG CORE CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Eden Medical Center Castro Valley, CA · (510) 537-1234 HCHG CK TOTAL | $243.00 | $243.00 | — | — | Apr 1, 2026 source file |
| Sequoia Hospital Redwood City, CA · (650) 369-5811 CPK TOTAL | $295.94 | $813.00 | $349.59–$18,346.00 | 64% | Feb 28, 2026 source file |
Inpatient: lowest $10.56, median $178.80, highest $243.00 — a 23.0× difference within the same market.
As an outpatient, the same code is billed by 24 facilities here, median $158.28 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 2 of 11 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 2 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.
4 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 82550 ($53.60). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| St. Rose Hospital Hayward, CALC-CREATINE KINASE TOTAL | $1.02 | file |
| St. Rose Hospital Hayward, CALC - CPK AND ISOENZYMES (C1) | $1.42 | file |
| St. Rose Hospital Hayward, CALC ASSAY OF CK (CPK) | $1.42 | file |
| Stanford Health Care Tri-Valley Pleasanton, CAHC 6956 12808r CK Total | $4.55 | file |