C-peptide test cost in Los Angeles, CA
In Los Angeles-Long Beach-Anaheim, CA, 36 hospitals list a cash price for C-peptide blood test: from $10.24 to $156.06, with a median of $30.36. The lowest listed price is at Cedars-Sinai Marina Hospital — $20.12 less than the median here. Across California, the median is $63.84 at 144 hospitals.
Cash prices at 36 facilities across 30 cities for code 84681, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Nov 26, 2025 and Sep 1, 2026.
Lowest$10.24Cedars-Sinai Marina Hospital
Median$30.36half of hospitals charge less
Highest$156.06in this market
Difference15.2×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 Los Angeles-Long Beach-Anaheim, CA.
median
Lowest $10.24Highest $156.06
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Cedars-Sinai Marina Hospital lowest Marina del Rey, CA · (310) 823-8911 HB C-PEPTIDE+3 more lines at this price File of Nov 26, 2025 · source file | $10.24 | $15.75 | $50.80–$161.30 | 35% |
| Memorial Hospital of Gardena Gardena, CA · (310) 532-4200 C-Peptide, Serum or Plasma ARUP File of Feb 4, 2026 · source file | $12.50 | $12.50 | $5.86–$41.62 | — |
| Community Hospital of Huntington Park Huntington Park, CA · (323) 583-1931 C-Peptide, Serum or Plasma ARUP File of Feb 4, 2026 · source file | $12.50 | $12.50 | $5.86–$41.62 | — |
| East Los Angeles Doctors Hospital Los Angeles, CA · (323) 268-5514 C-Peptide, Serum or Plasma ARUP File of Feb 4, 2026 · source file | $12.50 | $12.50 | $5.86–$41.62 | — |
| Coast Plaza Doctors Hospital Norwalk, CA · (310) 532-4200 C-Peptide, Serum or Plasma ARUP File of Feb 4, 2026 · source file | $12.50 | $12.50 | $5.86–$49.49 | — |
| Community Hospital of Huntington Park Huntington Park, CA · (323) 583-1931 C-Peptide, Serum or Plasma LABCORP File of Feb 4, 2026 · source file | $14.25 | $14.25 | $6.68–$41.62 | — |
| Memorial Hospital of Gardena Gardena, CA · (310) 532-4200 C-Peptide, Serum or Plasma LABCORP File of Feb 4, 2026 · source file | $14.25 | $14.25 | $6.68–$41.62 | — |
| East Los Angeles Doctors Hospital Los Angeles, CA · (323) 268-5514 C-Peptide, Serum or Plasma LABCORP File of Feb 4, 2026 · source file | $14.25 | $14.25 | $6.68–$41.62 | — |
| Coast Plaza Doctors Hospital Norwalk, CA · (310) 532-4200 C-Peptide, Serum or Plasma LABCORP File of Feb 4, 2026 · source file | $14.25 | $14.25 | $6.68–$49.49 | — |
| Community Hospital of Huntington Park Huntington Park, CA · (323) 583-1931 ASSAY OF C-PEPTIDE File of Feb 4, 2026 · source file | $15.49 | $15.49 | $7.26–$41.62 | — |
| East Los Angeles Doctors Hospital Los Angeles, CA · (323) 268-5514 ASSAY OF C-PEPTIDE File of Feb 4, 2026 · source file | $15.49 | $15.49 | $7.26–$41.62 | — |
| Coast Plaza Doctors Hospital Norwalk, CA · (310) 532-4200 ASSAY OF C-PEPTIDE File of Feb 4, 2026 · source file | $15.49 | $15.49 | $7.26–$49.49 | — |
| Memorial Hospital of Gardena Gardena, CA · (310) 532-4200 ASSAY OF C-PEPTIDE File of Feb 4, 2026 · source file | $15.49 | $15.49 | $7.26–$41.62 | — |
| East Los Angeles Doctors Hospital Los Angeles, CA · (323) 268-5514 C-PEPTIDE, 24 HOUR URINE -LABCORP File of Feb 4, 2026 · source file | $16.47 | $16.47 | $7.72–$41.62 | — |
| Coast Plaza Doctors Hospital Norwalk, CA · (310) 532-4200 C-PEPTIDE, 24 HOUR URINE -LABCORP File of Feb 4, 2026 · source file | $16.47 | $16.47 | $7.72–$49.49 | — |
| Memorial Hospital of Gardena Gardena, CA · (310) 532-4200 C-PEPTIDE, 24 HOUR URINE -LABCORP File of Feb 4, 2026 · source file | $16.47 | $16.47 | $7.72–$41.62 | — |
| Community Hospital of Huntington Park Huntington Park, CA · (323) 583-1931 C-PEPTIDE, 24 HOUR URINE -LABCORP File of Feb 4, 2026 · source file | $16.47 | $16.47 | $7.72–$41.62 | — |
| Chapman Global Medical Center Orange, CA · (714) 633-0011 C-PEPTIDE - LC File of May 6, 2026 · source file | $17.00 | $17.00 | $5.10–$64.77 | — |
| Anaheim Global Medical Center Anaheim, CA · (714) 533-6220 C-PEPTIDE - LC File of Jun 15, 2026 · source file | $17.00 | $17.00 | $5.10–$68.13 | — |
| Orange County Global Medical Center Santa Ana, CA · (714) 953-3500 C-PEPTIDE - LC File of Jun 15, 2026 · source file | $17.00 | $17.00 | $5.10–$64.77 | — |
| Sherman Oaks Hospital Sherman Oaks, CA · (818) 981-7111 C-PEPTIDE SERUM LC+2 more lines at this price File of Sep 1, 2026 · source file | $20.00 | $3.65 | $1.10–$35.00 | -448% |
| La Palma Intercommunity Hospital La Palma, CA · (714) 670-7400 Hc Assay Of C-Peptide File of Sep 1, 2026 · source file | $20.00 | $130.06 | $20.46–$130.06 | 85% |
| Garden Grove Hospital Medical Center Garden Grove, CA · (714) 537-5160 Hc Assay Of C-Peptide File of Sep 1, 2026 · source file | $20.00 | $104.05 | $20.46–$104.05 | 81% |
| San Dimas Community Hospital San Dimas, CA · (909) 599-6811 Hc Assay Of C-Peptide File of Sep 1, 2026 · source file | $20.00 | $136.90 | $19.77–$136.90 | 85% |
| St Francis Medical Center Lynwood, CA · (310) 900-8900 Hc Assay Of C-Peptide File of Sep 1, 2026 · source file | $20.00 | $130.00 | $20.46–$117.00 | 85% |
| West Anaheim Medical Center Anaheim, CA · (714) 827-3000 Hc Assay Of C-Peptide File of Sep 1, 2026 · source file | $20.00 | $130.06 | $20.46–$130.06 | 85% |
| Encino Hospital Medical Center Encino, CA · (818) 995-5000 LC 010108 C-PEPTIDE, SERUM File of Sep 1, 2026 · source file | $20.00 | $41.62 | $12.49–$41.62 | 52% |
| Centinela Hospital Medical Center Inglewood, CA · (310) 673-4660 C-PEPTIDE, SERUM LC File of Sep 1, 2026 · source file | $20.00 | $41.62 | $9.11–$41.62 | 52% |
| Providence St Joseph Hospital Orange Orange, CA · (714) 633-9111 HC ASSAY OF C-PEPTIDE CDM File of Apr 1, 2026 · source file | $30.36 | $63.25 | — | 52% |
| St Jude Hospital Fullerton, CA · (714) 992-3000 HC ASSAY OF C-PEPTIDE CDM File of Apr 1, 2026 · source file | $30.36 | $63.25 | — | 52% |
| Mission Hospital Regional Med Center Mission Viejo, CA · (949) 364-1400 HC ASSAY OF C-PEPTIDE CDM File of Apr 1, 2026 · source file | $30.36 | $63.25 | — | 52% |
| Providence Cedars Sinai Tarzana Medical Center Tarzana, CA · (818) 881-0800 HC ASSAY OF C-PEPTIDE File of Apr 1, 2026 · source file | $37.45 | $107.00 | — | 65% |
| Providence Saint Joseph Medical Center Burbank, CA · (818) 843-5111 HC ASSAY OF C-PEPTIDE+2 more lines at this price File of Apr 1, 2026 · source file | $37.80 | $108.00 | — | 65% |
| Providence Cedars Sinai Tarzana Medical Center Tarzana, CA · (818) 881-0800 HC ASSAY OF C-PEPTIDE CDM File of Apr 1, 2026 · source file | $41.30 | $118.00 | — | 65% |
| Community Hospital of Huntington Park Huntington Park, CA · (323) 583-1931 C-Peptide, 24 hour Urine ARUP+1 more line at this price File of Feb 4, 2026 · source file | $49.00 | $49.00 | $8.74–$41.62 | — |
| Memorial Hospital of Gardena Gardena, CA · (310) 532-4200 C-Peptide, 24 hour Urine ARUP+1 more line at this price File of Feb 4, 2026 · source file | $49.00 | $49.00 | $8.74–$41.62 | — |
| East Los Angeles Doctors Hospital Los Angeles, CA · (323) 268-5514 C-Peptide ,24 Hour Urine -ARUP+1 more line at this price File of Feb 4, 2026 · source file | $49.00 | $49.00 | $8.74–$41.62 | — |
| Coast Plaza Doctors Hospital Norwalk, CA · (310) 532-4200 C-Peptide, 24 hour Urine ARUP+1 more line at this price File of Feb 4, 2026 · source file | $49.00 | $49.00 | $8.74–$49.49 | — |
| Providence Holy Cross Medical Center Mission Hills, CA · (818) 365-8051 HC ASSAY OF C PEPTIDE LAB File of Apr 1, 2026 · source file | $56.70 | $162.00 | — | 65% |
| Providence Holy Cross Medical Center Mission Hills, CA · (818) 365-8051 HC ASSAY OF C-PEPTIDE CDM+1 more line at this price File of Apr 1, 2026 · source file | $67.90 | $194.00 | — | 65% |
| Pacifica Hospital of the Valley Sun Valley, CA · (818) 767-3310 C-peptide source file | $74.00 | $74.00 | $17.00–$74.00 | — |
| Catalina Island Medical Center Avalon, CA · (310) 510-0700 C-peptide (protein) level File of Jul 20, 2026 · source file | $74.20 | $106.00 | $19.77–$106.00 | 30% |
| Providence Little Co of Mary Medical Center San Pedro San Pedro, CA · (310) 832-3311 HC ASSAY OF C PEPTIDE LAB+2 more lines at this price File of Apr 1, 2026 · source file | $74.90 | $214.00 | — | 65% |
| Providence Little Company of Mary Medical Center Torrance Torrance, CA · (310) 540-7676 HC ASSAY OF C PEPTIDE LAB+2 more lines at this price File of Apr 1, 2026 · source file | $74.90 | $214.00 | — | 65% |
| Providence Saint Joseph Medical Center Burbank, CA · (818) 843-5111 HC ASSAY OF C-PEPTIDE+2 more lines at this price File of Apr 1, 2026 · source file | $79.45 | $227.00 | — | 65% |
| Providence Cedars Sinai Tarzana Medical Center Tarzana, CA · (818) 881-0800 HC ASSAY OF C-PEPTIDE File of Apr 1, 2026 · source file | $98.00 | $280.00 | — | 65% |
| Providence Holy Cross Medical Center Mission Hills, CA · (818) 365-8051 HC ASSAY OF C PEPTIDE LAB File of Apr 1, 2026 · source file | $106.40 | $304.00 | — | 65% |
| Providence Cedars Sinai Tarzana Medical Center Tarzana, CA · (818) 881-0800 HC ASSAY OF C-PEPTIDE CDM File of Apr 1, 2026 · source file | $108.50 | $310.00 | — | 65% |
| Kaiser Foundation Hospital - South Bay Harbor City, CA · (310) 325-5111 ASSAY OF C-PEPTIDE source file | $121.16 | $233.00 | $15.00–$45.00 | 48% |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim, CA · (714) 279-4000 ASSAY OF C-PEPTIDE source file | $121.16 | $233.00 | $15.00–$45.00 | 48% |
| Kaiser Foundation Hospital - Woodland Hills Woodland Hills, CA · (818) 719-3800 ASSAY OF C-PEPTIDE source file | $121.16 | $233.00 | $15.00–$45.00 | 48% |
| Kaiser Foundation Hospital - Los Angeles Los Angeles, CA · (323) 783-4011 ASSAY OF C-PEPTIDE source file | $121.16 | $233.00 | $15.00–$45.00 | 48% |
| Kaiser Foundation Hospital - Baldwin Park Baldwin Park, CA · (626) 851-1011 ASSAY OF C-PEPTIDE source file | $121.16 | $233.00 | $15.00–$45.00 | 48% |
| Kaiser Foundation Hospital - Downey Downey, CA · (562) 461-6007 ASSAY OF C-PEPTIDE source file | $121.16 | $233.00 | $15.00–$45.00 | 48% |
| Kaiser Foundation Hospital - Panorama City Panorama City, CA · (818) 375-2000 ASSAY OF C-PEPTIDE source file | $121.16 | $233.00 | $15.00–$45.00 | 48% |
| Kaiser Fnd Hospital - Irvine Irvine, CA · (714) 279-4000 ASSAY OF C-PEPTIDE source file | $121.16 | $233.00 | $15.00–$45.00 | 48% |
| Kaiser Foundation Hospital - West LA Los Angeles, CA · (213) 857-2201 ASSAY OF C-PEPTIDE source file | $121.16 | $233.00 | $15.00–$45.00 | 48% |
| Providence Holy Cross Medical Center Mission Hills, CA · (818) 365-8051 HC ASSAY OF C-PEPTIDE+1 more line at this price File of Apr 1, 2026 · source file | $127.75 | $365.00 | — | 65% |
| Cedars-Sinai Medical Center Los Angeles, CA · (310) 423-5000 C-PEPTIDE+3 more lines at this price File of Nov 26, 2025 · source file | $156.06 | $240.09 | $50.75–$235.87 | 35% |
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 $10.24, median $30.36, highest $156.06 — a 15.2× difference within the same market.
As an inpatient, the same code is billed by 27 facilities here, median $74.90. 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 27 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 C-peptide test shows how much insulin the pancreas is making. It helps tell type 1 from type 2 diabetes and find the cause of low blood sugar.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
18 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84681 ($92.56). 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.
| Hospital | Cash price | File |
|---|---|---|
| UCI Health - Fountain Valley Orange, CAC-PEPTIDE | $1.46 | file |
| UCI Health - Los Alamitos Orange, CAC-PEPTIDE | $1.46 | file |
| UCI Health - Lakewood Orange, CAC-PEPTIDE | $1.46 | file |
| UCI Health - Placentia Linda Orange, CAC-PEPTIDE | $1.46 | file |
| Glendale Memorial Hospital & Health Center Glendale, CARL-A-C PEP 70103 | $2.61 | file |
| St Mary Medical Center Long Beach, CARL-A-C PEP 70103 | $3.44 | file |
| California Hospital Medical Center LA Los Angeles, CARL-A-C PEP 70103 | $3.88 | file |
| Coast Plaza Doctors Hospital Norwalk, CASERUM, C-PEPTIDE - LABCORP | $4.75 | file |
| Community Hospital of Huntington Park Huntington Park, CASERUM, C-PEPTIDE - LABCORP | $4.75 | file |
| Memorial Hospital of Gardena Gardena, CAC-PEPTIDE - LABCORP | $4.75 | file |
| Memorial Hospital of Gardena Gardena, CASERUM, C-PEPTIDE - LABCORP | $4.75 | file |
| East Los Angeles Doctors Hospital Los Angeles, CASERUM, C-PEPTIDE - LABCORP | $4.75 | file |
| East Los Angeles Doctors Hospital Los Angeles, CAC-PEPTIDE - LABCORP | $4.75 | file |
| Community Hospital of Huntington Park Huntington Park, CAC-PEPTIDE - LABCORP | $4.75 | file |
| Coast Plaza Doctors Hospital Norwalk, CAC-PEPTIDE - LABCORP | $4.75 | file |
| Hoag Memorial Hospital Presbyterian Newport Beach, CAHC C Peptide | $5.20 | file |
| Childrens Hospital at Mission - Cerner Mission Viejo, CAHC C PEPTIDE 30014462 | $7.00 | file |
| Childrens Hospital at Mission - Cerner Mission Viejo, CAHC C PEPTIDE | $8.00 | file |
File Link to the hospital's own price file.