Lab tests CPT 82550 Outpatient

CK (creatine kinase) test cost in Riverside, CA

In Riverside-San Bernardino-Ontario, CA, 25 hospitals list a cash price for creatine kinase (CK) blood test, total: from $6.00 to $993.75, with a median of $68.85. The lowest listed price is at Montclair Hospital Medical Center and 5 other hospitals — $62.85 less than the median here. Across California, the median is $87.36 at 211 hospitals.

Cash prices at 25 facilities across 20 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 Feb 28, 2026 and Sep 17, 2026.

Lowest$6.00Montclair Hospital Medical Center + 5 more
Median$68.85half of hospitals charge less
Highest$993.75in this market
Difference165.6×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 Riverside-San Bernardino-Ontario, CA.

median
Lowest $6.00Highest $993.75

Hospitals, cheapest first

HospitalCash priceList priceInsurers payOff list
Montclair Hospital Medical Center lowest Montclair, CA · (909) 625-8300 Hc Assay Of Ck (Cpk) File of Sep 1, 2026 · source file $6.00 $300.85 $6.18–$300.85 98%
Hemet Global Medical Center lowest Hemet, CA · (951) 652-2811 ASSAY OF CK (CPK) File of Jun 15, 2026 · source file $6.00 $6.00 $2.70–$19.86 —
Desert Valley Hospital lowest Victorville, CA · (760) 241-8000 CREATINE KINASE (CPK) TOTAL+1 more line at this price File of Sep 1, 2026 · source file $6.00 $218.80 $6.44–$218.80 97%
Menifee Global Medical Center lowest Menifee, CA · (951) 679-8888 ASSAY OF CK (CPK) File of May 20, 2026 · source file $6.00 $6.00 $2.70–$19.86 —
Victor Valley Global Medical Center lowest Victorville, CA · (760) 245-8691 ASSAY OF CK (CPK)+1 more line at this price File of May 13, 2026 · source file $6.00 $6.00 $1.44–$49.00 —
Chino Valley Medical Center lowest Chino, CA · (909) 627-6111 Hc Assay Of Ck (Cpk) File of Sep 1, 2026 · source file $6.00 $300.85 $6.18–$300.85 98%
Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 CREATINE KINASE ISOENZYME source file $12.45 $31.12 $14.00–$26.45 60%
Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 CPK source file $14.80 $37.00 $16.65–$31.45 60%
San Gorgonio Memorial Hospital Banning, CA · (951) 769-2101 CREATINE KINASE (CARDIAC ENZYME) LEVEL; TOTAL source file $15.20 $76.00 $6.18–$76.00 80%
St Bernardine Medical Center San Bernardino, CA · (909) 883-8711 CPK TOTAL File of Feb 28, 2026 · source file $17.32 $52.00 $5.60–$52.00 67%
St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC CREATINE KINASE TOTAL CDM File of Apr 1, 2026 · source file $25.12 $52.33 — 52%
Community Hospital of San Bernardino San Bernardino, CA · (909) 887-6333 CPK TOTAL File of Feb 28, 2026 · source file $25.42 $65.00 $6.51–$65.00 61%
Victor Valley Global Medical Center Victorville, CA · (760) 245-8691 CPK TOTAL File of May 13, 2026 · source file $46.00 $46.00 $3.98–$49.00 —
Bear Valley Community Hospital Big Bear Lake, CA · (909) 866-6501 CK TOTAL source file $54.08 $77.25 $6.18–$65.66 30%
Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC CREATINE KINASE File of Sep 2, 2026 · source file $68.85 $153.00 $6.51–$114.75 55%
Loma Linda University Behavioral Medicine Center Redlands, CA HC CREATINE KINASE File of Aug 31, 2026 · source file $68.85 $153.00 $6.51–$122.40 55%
Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC CREATINE KINASE File of Sep 2, 2026 · source file $68.85 $153.00 $5.27–$137.70 55%
Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC CREATINE KINASE File of Sep 2, 2026 · source file $68.85 $153.00 $5.27–$130.05 55%
Kaiser Ontario Medical Center Campus Ontario, CA · (909) 427-5000 CREATINE KINASE TOTAL source file $87.36 $168.00 $5.00–$15.00 48%
St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC CK TOTAL+1 more line at this price File of Apr 1, 2026 · source file $87.36 $182.00 — 52%
Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 CREATINE KINASE TOTAL source file $87.36 $168.00 $5.00–$15.00 48%
Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 CREATINE KINASE TOTAL source file $87.36 $168.00 $5.00–$15.00 48%
Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 CREATINE KINASE TOTAL source file $87.36 $168.00 $5.00–$15.00 48%
Palo Verde Hospital Blythe, CA · (760) 922-4115 Creatine Kinase File of Jul 1, 2026 · source file $107.25 $143.00 — 25%
Hemet Global Medical Center Hemet, CA · (951) 652-2811 LAB CPK TOTAL File of Jun 15, 2026 · source file $179.00 $179.00 $5.79–$179.00 —
Menifee Global Medical Center Menifee, CA · (951) 679-8888 LAB CPK TOTAL File of May 20, 2026 · source file $179.00 $179.00 $5.79–$179.00 —
San Antonio Regional Hospital Upland, CA · (909) 985-2811 Creatine kinase (cardiac enzyme) level, total File of Apr 2, 2026 · source file $185.00 $653.00 $5.21–$1,199.89 72%
Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC Creatine Kinase (CK) Total+1 more line at this price source file $346.16 $346.16 $4.64–$346.16 —
Barstow Community Hospital Barstow, CA · (760) 256-1761 Creatine kinase (cardiac enzyme) level, total File of Sep 17, 2026 · source file $493.42 $822.36 $7.46–$657.89 40%
Riverside Community Hospital Riverside, CA · (951) 788-3000 CREAT KINASE (CK) TOTAL File of Sep 1, 2026 · source file $993.75 $993.75 $149.06–$894.38 —
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More

Outpatient: lowest $6.00, median $68.85, highest $993.75 — a 165.6× difference within the same market.

As an inpatient, the same code is billed by 17 facilities here, median $68.85. 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 17 of 23 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 4 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.

8 rows held back from this comparison

They are priced below $1 or below a tenth of the national median for code 82550 ($53.40). 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.

HospitalCash priceFile
Eisenhower Medical Center Rancho Mirage, CAHC 4451 - Creatine Kinase Isoenzymes (CK Isoenzymes) With Total CK, 82550 $1.50 file
Hemet Global Medical Center Hemet, CAC CREATININE KINASE TOTAL - LC $2.00 file
Menifee Global Medical Center Menifee, CAC CREATININE KINASE TOTAL - LC $2.00 file
San Gorgonio Memorial Hospital Banning, CAASSAY OF CK (CPK) $2.33 file
St Bernardine Medical Center San Bernardino, CARL-A-CKISO 20414A $3.00 file
Eisenhower Medical Center Rancho Mirage, CAHC CK Total $3.22 file
Community Hospital of San Bernardino San Bernardino, CARL-A-CKISO 20414A $3.52 file
Mountains Community Hospital Lake Arrowhead, CACREATINE KINASE, TOTAL $4.30 file
File Link to the hospital's own price file.