Lab tests CPT 84681 California Outpatient

C-peptide test cost in California

In California, 144 hospitals publish a cash price for C-peptide blood test: from $10.00 to $185.00, with a median of $63.84. The lowest price is at Loma Linda University Behavioral Medicine Center (Redlands) and 3 other hospitals. The highest price is 18.5× the lowest.

Outpatient cash prices, one line per hospital — its lowest listed price for code 84681. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 29, 2026. See them on a map

Lowest$10.00Loma Linda University Behavioral Medicine Center + 3 more

Median$63.84half pay less

Highest$185.00in California

Lowest saves$53.84vs the median

Hospitals in California, cheapest first

Hospital	Cash price	List price	File date
Loma Linda University Behavioral Medicine Center lowest Redlands · Riverside-San Bernardino-Ontario, CA HC SOM C-PEPTIDE	$10.00	$10.00	Aug 31, 2026 source file
Loma Linda University Childrens Hospital lowest Loma Linda · Riverside-San Bernardino-Ontario, CA HC SOM C-PEPTIDE	$10.00	$10.00	Sep 2, 2026 source file
Loma Linda University Medical Center lowest Loma Linda · Riverside-San Bernardino-Ontario, CA HC SOM C-PEPTIDE	$10.00	$10.00	Sep 2, 2026 source file
Loma Linda University Medical Center - Murrieta lowest Murrieta · Riverside-San Bernardino-Ontario, CA HC SOM C-PEPTIDE	$10.00	$10.00	Sep 2, 2026 source file
Mercy Hospital Bakersfield · Bakersfield-Delano, CA H-C-PEPTIDE 7546	$10.02	$27.00	Feb 28, 2026 source file
Cedars-Sinai Marina Hospital Marina del Rey · Los Angeles-Long Beach-Anaheim, CA Clinical and Anatomical Laboratory Services	$10.24	$15.75	Nov 26, 2025 source file
Rady Children's Hospital - San Diego San Diego · San Diego-Chula Vista-Carlsbad, CA Pph 17-Hydroxyprogesterone Lc/Ms/Ms	$10.50	$14.00	Apr 1, 2026 source file
Mountains Community Hospital Lake Arrowhead · Riverside-San Bernardino-Ontario, CA C-PEPTIDE	$11.04	$27.61	— source file
Fairchild Medical Center Yreka · Yreka, CA C-peptide (protein) level	$11.88	$11.88	Sep 24, 2026 source file
Hemet Global Medical Center Hemet · Riverside-San Bernardino-Ontario, CA C-PEPTIDE - LC	$12.00	$12.00	Jun 15, 2026 source file
Kaweah Health Medical Center Visalia · Visalia, CA C-Peptide-ARUP	$12.00	$12.00	Jul 14, 2026 source file
Kaweah Health Mental Health Hospital Visalia · Visalia, CA C-Peptide-ARUP	$12.00	$12.00	Jul 10, 2026 source file
Menifee Global Medical Center Menifee · Riverside-San Bernardino-Ontario, CA C-PEPTIDE - LC	$12.00	$12.00	May 20, 2026 source file
Oroville Hospital Oroville · Chico, CA *C-peptide	$12.00	$24.00	— source file
Coast Plaza Doctors Hospital Norwalk · Los Angeles-Long Beach-Anaheim, CA C-Peptide, Serum or Plasma ARUP	$12.50	$12.50	Feb 4, 2026 source file
Community Hospital of Huntington Park Huntington Park · Los Angeles-Long Beach-Anaheim, CA C-Peptide, Serum or Plasma ARUP	$12.50	$12.50	Feb 4, 2026 source file
East Los Angeles Doctors Hospital Los Angeles · Los Angeles-Long Beach-Anaheim, CA C-Peptide, Serum or Plasma ARUP	$12.50	$12.50	Feb 4, 2026 source file
Memorial Hospital of Gardena Gardena · Los Angeles-Long Beach-Anaheim, CA C-Peptide, Serum or Plasma ARUP	$12.50	$12.50	Feb 4, 2026 source file
Palo Verde Hospital Blythe · Riverside-San Bernardino-Ontario, CA C-Peptide LC	$12.90	$17.20	Jul 1, 2026 source file
Madera Community Hospital Madera · Fresno, CA C-peptide (protein) level	$12.98	$21.64	Jul 30, 2026 source file
Orchard Hospital Gridley · Chico, CA C-peptide (protein) level	$13.10	$21.84	Sep 26, 2026 source file
Oak Valley Hospital District Oakdale · Modesto, CA C-peptide (protein) level	$15.00	$20.00	Jul 17, 2026 source file
County of Monterey Salinas · Salinas, CA C-peptide (protein) level	$16.00	$16.00	Aug 14, 2026 source file
Anaheim Global Medical Center Anaheim · Los Angeles-Long Beach-Anaheim, CA C-PEPTIDE - LC	$17.00	$17.00	Jun 15, 2026 source file
Chapman Global Medical Center Orange · Los Angeles-Long Beach-Anaheim, CA C-PEPTIDE - LC	$17.00	$17.00	May 6, 2026 source file
Orange County Global Medical Center Santa Ana · Los Angeles-Long Beach-Anaheim, CA C-PEPTIDE - LC	$17.00	$17.00	Jun 15, 2026 source file
Centinela Hospital Medical Center Inglewood · Los Angeles-Long Beach-Anaheim, CA C-PEPTIDE, SERUM LC	$20.00	$41.62	Sep 1, 2026 source file
Chino Valley Medical Center Chino · Riverside-San Bernardino-Ontario, CA Hc Assay Of C-Peptide	$20.00	$136.90	Sep 1, 2026 source file
Desert Valley Hospital Victorville · Riverside-San Bernardino-Ontario, CA C PEPTIDE LC 1	$20.00	$68.67	Sep 1, 2026 source file
Encino Hospital Medical Center Encino · Los Angeles-Long Beach-Anaheim, CA LC 010108 C-PEPTIDE, SERUM	$20.00	$41.62	Sep 1, 2026 source file
Garden Grove Hospital Medical Center Garden Grove · Los Angeles-Long Beach-Anaheim, CA Hc Assay Of C-Peptide	$20.00	$104.05	Sep 1, 2026 source file
La Palma Intercommunity Hospital La Palma · Los Angeles-Long Beach-Anaheim, CA Hc Assay Of C-Peptide	$20.00	$130.06	Sep 1, 2026 source file
Montclair Hospital Medical Center Montclair · Riverside-San Bernardino-Ontario, CA Hc Assay Of C-Peptide	$20.00	$136.90	Sep 1, 2026 source file
Paradise Valley Hospital National City · San Diego-Chula Vista-Carlsbad, CA C-PEPTIDE	$20.00	$120.18	Sep 1, 2026 source file
San Dimas Community Hospital San Dimas · Los Angeles-Long Beach-Anaheim, CA Hc Assay Of C-Peptide	$20.00	$136.90	Sep 1, 2026 source file
Shasta Regional Medical Center Redding · Redding, CA C-PEPTIDE	$20.00	$3.65	Sep 1, 2026 source file
Sherman Oaks Hospital Sherman Oaks · Los Angeles-Long Beach-Anaheim, CA C-PEPTIDE	$20.00	$25.70	Sep 1, 2026 source file
St Francis Medical Center Lynwood · Los Angeles-Long Beach-Anaheim, CA Hc Assay Of C-Peptide	$20.00	$130.00	Sep 1, 2026 source file
West Anaheim Medical Center Anaheim · Los Angeles-Long Beach-Anaheim, CA Hc Assay Of C-Peptide	$20.00	$130.06	Sep 1, 2026 source file
Clovis Community Medical Center Clovis · Fresno, CA C-PEPTIDE;Q	$24.00	$30.00	Jun 15, 2026 source file
Community Behavioral Health Center Fresno · Fresno, CA C-PEPTIDE;Q	$24.00	$30.00	Jun 18, 2026 source file
Community Regional Medical Center Fresno · Fresno, CA C-PEPTIDE;Q	$24.00	$30.00	Jun 18, 2026 source file
Fresno Heart and Surgical Hospital Fresno · Fresno, CA C-PEPTIDE;Q	$24.00	$30.00	Jun 16, 2026 source file
Mission Hospital Regional Med Center Mission Viejo · Los Angeles-Long Beach-Anaheim, CA HC ASSAY OF C-PEPTIDE CDM	$30.36	$63.25	Apr 1, 2026 source file
Providence St Joseph Hospital Orange Orange · Los Angeles-Long Beach-Anaheim, CA HC ASSAY OF C-PEPTIDE CDM	$30.36	$63.25	Apr 1, 2026 source file
St Jude Hospital Fullerton · Los Angeles-Long Beach-Anaheim, CA HC ASSAY OF C-PEPTIDE CDM	$30.36	$63.25	Apr 1, 2026 source file
St Mary Medical Center Apple Valley · Riverside-San Bernardino-Ontario, CA HC ASSAY OF C-PEPTIDE CDM	$30.36	$63.25	Apr 1, 2026 source file
French Hospital Medical Center San Luis Obispo · San Luis Obispo-Paso Robles, CA RL-A-QST-CARDIO IQ 36509B	$30.38	$77.50	Feb 28, 2026 source file
Grossmont Hospital La Mesa · San Diego-Chula Vista-Carlsbad, CA HC ASSAY OF C-PEPTIDE - C-PEPTIDE	$32.25	$43.00	— source file
Sharp Chula Vista Medical Center Chula Vista · San Diego-Chula Vista-Carlsbad, CA HC ASSAY OF C-PEPTIDE - C-PEPTIDE	$32.25	$43.00	— source file
Sharp Coronado Hospital and Healthcare Center Coronado · San Diego-Chula Vista-Carlsbad, CA HC ASSAY OF C-PEPTIDE - C-PEPTIDE	$32.25	$43.00	— source file
Sharp Memorial Hospital San Diego · San Diego-Chula Vista-Carlsbad, CA HC ASSAY OF C-PEPTIDE - C-PEPTIDE	$32.25	$43.00	— source file
Petaluma Valley Hospital Petaluma · Santa Rosa-Petaluma, CA HC ASSAY OF C-PEPTIDE CDM	$32.26	$63.25	Apr 1, 2026 source file
Providence Queen of the Valley Medical Center Napa · Napa, CA HC ASSAY OF C-PEPTIDE CDM	$32.26	$63.25	Apr 1, 2026 source file
Providence Redwood Memorial Hospital Fortuna · Eureka-Arcata, CA HC ASSAY OF C-PEPTIDE CDM	$32.26	$63.25	Apr 1, 2026 source file
Providence Santa Rosa Memorial Hospital Santa Rosa · Santa Rosa-Petaluma, CA HC ASSAY OF C-PEPTIDE CDM	$32.26	$63.25	Apr 1, 2026 source file
Providence St Joseph Hospital Eureka · Eureka-Arcata, CA HC ASSAY OF C-PEPTIDE CDM	$32.26	$63.25	Apr 1, 2026 source file
Marian Regional Medical Center Santa Maria · Santa Maria-Santa Barbara, CA RL-A-QST-CARDIO IQ 36509B	$33.17	$77.50	Feb 28, 2026 source file
Sequoia Hospital Redwood City · San Francisco-Oakland-Fremont, CA RL-SU-C PEPTIDE	$33.49	$92.00	Feb 28, 2026 source file
Mark Twain Medical Center San Andreas · San Andreas, CA C-PEPTIDE	$34.66	$52.03	Feb 28, 2026 source file
Pioneers Memorial Hospital Brawley · El Centro, CA C-Peptide	$35.00	$100.00	— source file
Providence Cedars Sinai Tarzana Medical Center Tarzana · Los Angeles-Long Beach-Anaheim, CA HC ASSAY OF C-PEPTIDE	$37.45	$107.00	Apr 1, 2026 source file
Providence Saint Joseph Medical Center Burbank · Los Angeles-Long Beach-Anaheim, CA HC ASSAY OF C-PEPTIDE	$37.80	$108.00	Apr 1, 2026 source file
Victor Valley Global Medical Center Victorville · Riverside-San Bernardino-Ontario, CA C-PEPTIDE	$38.00	$38.00	May 13, 2026 source file
Providence Holy Cross Medical Center Mission Hills · Los Angeles-Long Beach-Anaheim, CA HC ASSAY OF C PEPTIDE LAB	$56.70	$162.00	Apr 1, 2026 source file
Good Samaritan Hospital Los Gatos · San Jose-Sunnyvale-Santa Clara, CA C-PEPTIDE	$59.50	$59.50	Sep 1, 2026 source file
Riverside University Medical Center Moreno Valley · Riverside-San Bernardino-Ontario, CA HC Qu C Peptide Any Method	$62.91	$62.91	— source file
Kaiser Foundation Hospital & Rehab Center - Vallejo Vallejo · Vallejo, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Antioch Antioch · San Francisco-Oakland-Fremont, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Fremont Fremont · San Francisco-Oakland-Fremont, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Fresno Fresno · Fresno, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Manteca Manteca · Stockton-Lodi, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Modesto Modesto · Modesto, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Oakland/Richmond Oakland · San Francisco-Oakland-Fremont, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Redwood City Redwood City · San Francisco-Oakland-Fremont, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Roseville Roseville · Sacramento-Roseville-Folsom, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Sacramento Sacramento · Sacramento-Roseville-Folsom, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - San Francisco San Francisco · San Francisco-Oakland-Fremont, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - San Jose San Jose · San Jose-Sunnyvale-Santa Clara, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - San Leandro San Leandro · San Francisco-Oakland-Fremont, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - San Rafael San Rafael · San Francisco-Oakland-Fremont, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Santa Clara Santa Clara · San Jose-Sunnyvale-Santa Clara, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Santa Rosa Santa Rosa · Santa Rosa-Petaluma, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - South Sacramento Sacramento · Sacramento-Roseville-Folsom, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - South San Francisco South San Francisco · San Francisco-Oakland-Fremont, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Vacaville Vacaville · Vallejo, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Foundation Hospital - Walnut Creek Walnut Creek · San Francisco-Oakland-Fremont, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Kaiser Fnd Hospital - Richmond Campus Richmond · Richmond, CA ASSAY OF C-PEPTIDE	$63.84	$114.00	— source file
Jerold Phelps Community Hospital Garberville · Eureka-Arcata, CA HC ASSAY OF C-PEPTIDE - C-PEPTIDE	$68.50	$85.62	— source file
Stanford Health Care Tri-Valley Pleasanton · San Francisco-Oakland-Fremont, CA HC C Peptide	$71.20	$178.00	Apr 1, 2026 source file
Pacifica Hospital of the Valley Sun Valley · Los Angeles-Long Beach-Anaheim, CA C-peptide	$74.00	$74.00	— source file
Catalina Island Medical Center Avalon · Los Angeles-Long Beach-Anaheim, CA C-peptide (protein) level	$74.20	$106.00	Jul 20, 2026 source file
Providence Little Co of Mary Medical Center San Pedro San Pedro · Los Angeles-Long Beach-Anaheim, CA HC ASSAY OF C-PEPTIDE	$74.90	$214.00	Apr 1, 2026 source file
Providence Little Company of Mary Medical Center Torrance Torrance · Los Angeles-Long Beach-Anaheim, CA HC ASSAY OF C-PEPTIDE	$74.90	$214.00	Apr 1, 2026 source file
Mad River Community Hospital Arcata · Eureka-Arcata, CA 84681	$87.19	$87.19	Jul 22, 2025 source file
American Advanced - Glenn Medical Center Willows · Willows, CA C-PEPTIDE	$95.13	$158.55	Oct 4, 2025 source file
Chinese Hospital San Francisco · San Francisco-Oakland-Fremont, CA C-peptide (protein) level	$97.00	$97.00	Jul 22, 2026 source file
Eastern Plumas Health Care Porola · Porola, CA C-Peptide Serum LC	$111.00	$138.75	— source file
Kaiser Foundation Hospital - Baldwin Park Baldwin Park · Los Angeles-Long Beach-Anaheim, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - Downey Downey · Los Angeles-Long Beach-Anaheim, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - Fontana Fontana · Riverside-San Bernardino-Ontario, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - Los Angeles Los Angeles · Los Angeles-Long Beach-Anaheim, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - Moreno Valley Moreno Valley · Riverside-San Bernardino-Ontario, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - Orange County - Anaheim Anaheim · Los Angeles-Long Beach-Anaheim, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - Panorama City Panorama City · Los Angeles-Long Beach-Anaheim, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - Riverside Riverside · Riverside-San Bernardino-Ontario, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - San Diego - Clairemont Mesa San Diego · San Diego-Chula Vista-Carlsbad, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - San Diego - Zion San Diego · San Diego-Chula Vista-Carlsbad, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - San Marcos San Marcos · San Diego-Chula Vista-Carlsbad, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - South Bay Harbor City · Los Angeles-Long Beach-Anaheim, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - West LA Los Angeles · Los Angeles-Long Beach-Anaheim, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Foundation Hospital - Woodland Hills Woodland Hills · Los Angeles-Long Beach-Anaheim, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Fnd Hospital - Irvine Irvine · Los Angeles-Long Beach-Anaheim, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Kaiser Ontario Medical Center Campus Ontario · Ontario, CA ASSAY OF C-PEPTIDE	$121.16	$233.00	— source file
Sutter Amador Hospital Jackson · Jackson, CA HCHG CORE C-PEPTIDE	$128.00	$128.00	Apr 1, 2026 source file
Sutter Coast Hospital Crescent City · Crescent City, CA HCHG CORE C-PEPTIDE	$128.00	$128.00	Apr 1, 2026 source file
Sutter Lakeside Hospital Lakeport · Clearlake, CA HCHG CORE C-PEPTIDE	$129.00	$129.00	Apr 1, 2026 source file
Alta Bates Summit Medical Center Oakland · San Francisco-Oakland-Fremont, CA HCHG C PEPTIDE	$138.00	$138.00	Apr 1, 2026 source file
Alta Bates Summit Medical Center - Alta Bates Camp Berkeley · San Francisco-Oakland-Fremont, CA HCHG C PEPTIDE	$138.00	$138.00	Apr 1, 2026 source file
Alta Bates Summit Medical Center - Herrick Campus Berkeley · San Francisco-Oakland-Fremont, CA HCHG C PEPTIDE	$138.00	$138.00	Apr 1, 2026 source file
Alta Bates Summit Medical Center-Summit Campus-Hawthorne Oakland · San Francisco-Oakland-Fremont, CA HCHG C PEPTIDE	$138.00	$138.00	Apr 1, 2026 source file
California Pacific Medical Center- Van Ness Campus San Francisco · San Francisco-Oakland-Fremont, CA HCHG C PEPTIDE	$138.00	$138.00	Apr 1, 2026 source file
California Pacific Medical Ctr-Davies Campus Hospital San Francisco · San Francisco-Oakland-Fremont, CA HCHG C PEPTIDE	$138.00	$138.00	Apr 1, 2026 source file
Mills Health Center San Mateo · San Francisco-Oakland-Fremont, CA HCHG C PEPTIDE	$138.00	$138.00	Apr 1, 2026 source file
Mills-Peninsula Medical Center Burlingame · San Francisco-Oakland-Fremont, CA HCHG C PEPTIDE	$138.00	$138.00	Apr 1, 2026 source file
Stanford Health Care Stanford · San Jose-Sunnyvale-Santa Clara, CA HC C Peptide	$138.80	$347.00	Apr 1, 2026 source file
Memorial Hospital Los Banos Los Banos · Merced, CA HCHG CORE C-PEPTIDE	$152.00	$152.00	Apr 1, 2026 source file
Memorial Medical Center Modesto · Modesto, CA HCHG CORE C-PEPTIDE	$152.00	$152.00	Apr 1, 2026 source file
Sutter Auburn Faith Hospital Auburn · Sacramento-Roseville-Folsom, CA HCHG CORE C-PEPTIDE	$152.00	$152.00	Apr 1, 2026 source file
Sutter Davis Hospital Davis · Sacramento-Roseville-Folsom, CA HCHG CORE C-PEPTIDE	$152.00	$152.00	Apr 1, 2026 source file
Sutter Medical Center, Sacramento Sacramento · Sacramento-Roseville-Folsom, CA HCHG CORE C-PEPTIDE	$152.00	$152.00	Apr 1, 2026 source file
Sutter Roseville Medical Center Roseville · Sacramento-Roseville-Folsom, CA HCHG CORE C-PEPTIDE	$152.00	$152.00	Apr 1, 2026 source file
Sutter Surgical Hospital - North Valley Yuba City · Yuba City, CA HCHG CORE C-PEPTIDE	$152.00	$152.00	Apr 1, 2026 source file
Sutter Tracy Community Hospital Tracy · Stockton-Lodi, CA HCHG CORE C-PEPTIDE	$152.00	$152.00	Apr 1, 2026 source file
Cedars-Sinai Medical Center Los Angeles · Los Angeles-Long Beach-Anaheim, CA C-PEPTIDE, ANY METHOD	$156.06	$240.09	Nov 26, 2025 source file
Eden Medical Center Castro Valley · San Francisco-Oakland-Fremont, CA HCHG CORE C-PEPTIDE	$162.00	$162.00	Apr 1, 2026 source file
Novato Community Hospital Novato · San Francisco-Oakland-Fremont, CA HCHG CORE C-PEPTIDE	$162.00	$162.00	Apr 1, 2026 source file
Sutter Delta Medical Center Antioch · San Francisco-Oakland-Fremont, CA HCHG CORE C-PEPTIDE	$162.00	$162.00	Apr 1, 2026 source file
Sutter Maternity & Surgery Center of Santa Cruz Santa Cruz · Santa Cruz-Watsonville, CA HCHG CORE C-PEPTIDE	$162.00	$162.00	Apr 1, 2026 source file
Sutter Santa Rosa Regional Hospital Santa Rosa · Santa Rosa-Petaluma, CA HCHG CORE C-PEPTIDE	$162.00	$162.00	Apr 1, 2026 source file
Sutter Solano Medical Center Vallejo · Vallejo, CA HCHG CORE C-PEPTIDE	$162.00	$162.00	Apr 1, 2026 source file
Lucile Salter Packard Children's Hospital at Stanford Palo Alto · San Jose-Sunnyvale-Santa Clara, CA HC C Peptide	$173.50	$347.00	Mar 31, 2026 source file
Shriners Childrens - Northern California Sacramento · Sacramento-Roseville-Folsom, CA ASSAY OF C-PEPTIDE	$178.30	$178.30	— source file
San Antonio Regional Hospital Upland · Riverside-San Bernardino-Ontario, CA C-peptide (protein) level	$185.00	$14.74	Apr 2, 2026 source file

By metro area

Each metro page compares every listing, including prices for both sides of the body.

Metro area	Hospitals	Lowest	Median
Los Angeles-Long Beach-Anaheim, CA	36	$10.24	$30.36
San Francisco-Oakland-Fremont, CA	23	$33.49	$97.00
Riverside-San Bernardino-Ontario, CA	18	$10.00	$20.00
San Diego-Chula Vista-Carlsbad, CA	9	$10.50	$32.25
Sacramento-Roseville-Folsom, CA	8	$63.84	$152.00
Fresno, CA	6	$12.98	$24.00
San Jose-Sunnyvale-Santa Clara, CA	5	$59.50	$63.84
Eureka-Arcata, CA	4	$32.26	$50.38
Santa Rosa-Petaluma, CA	4	$32.26	$48.05
Modesto, CA	3	$15.00	$63.84
Vallejo, CA	3	$63.84	$63.84
Chico, CA	2	$12.00	$12.55
Stockton-Lodi, CA	2	$63.84	$107.92
Visalia, CA	2	$12.00	$12.00
Bakersfield-Delano, CA	1	$10.02	$10.02
Clearlake, CA	1	$129.00	$129.00
Crescent City, CA	1	$128.00	$128.00
El Centro, CA	1	$35.00	$35.00
Jackson, CA	1	$128.00	$128.00
Merced, CA	1	$152.00	$152.00
Napa, CA	1	$32.26	$32.26
Ontario, CA	1	$121.16	$121.16
Porola, CA	1	$111.00	$111.00
Richmond, CA	1	$63.84	$63.84
Redding, CA	1	$20.00	$20.00
San Andreas, CA	1	$34.66	$34.66
Salinas, CA	1	$16.00	$16.00
San Luis Obispo-Paso Robles, CA	1	$30.38	$30.38
Santa Cruz-Watsonville, CA	1	$162.00	$162.00
Santa Maria-Santa Barbara, CA	1	$33.17	$33.17
Willows, CA	1	$95.13	$95.13
Yreka, CA	1	$11.88	$11.88
Yuba City, CA	1	$152.00	$152.00

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.

C-peptide blood test in other states

Median cash price across the state's hospitals.