#1Neurology Center of North Orange County
Serves this area from Fullerton, CA (1 mi)
Clinical Research Sites in Fullerton, CA
The top-ranked clinical research sites serving Fullerton, CA are Neurology Center of North Orange County, Fullerton Neuro and Headache Ctr and Fullerton Neurological Center. We list 1005 clinical research sites serving Fullerton, CA. 30 of the providers shown match an active record from ClinicalTrials.gov, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Clinical Research Sites serving Fullerton, CA (Orange County). 1005 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked clinical research sites for Fullerton
#2Fullerton Neuro and Headache Ctr
Serves this area from Fullerton, CA (1 mi)#3Fullerton Neurological Center
Serves this area from Fullerton, CA (1 mi)#4Fullerton Neurology and Headache Center
Serves this area from Fullerton, CA (1 mi)#5Providence Medical Foundation
Serves this area from Fullerton, CA (1 mi)#6Providence Saint Jude Medical Center
Serves this area from Fullerton, CA (1 mi)#7Providence, St. Jude
Serves this area from Fullerton, CA (1 mi)#8Providence St. Jude Medical Center
Serves this area from Fullerton, CA (1 mi)#9Providence St. Jude Medical Center - Virginia K. Crosson Cancer Center and Infusion Center
Serves this area from Fullerton, CA (1 mi)#10Retina Consultants of Orange County
Serves this area from Fullerton, CA (1 mi)
20 more providers serving this area
- Saint Jude Medical Center, Fullerton, CA (1 mi)
- St. Joseph Heritage Healthcare, Fullerton, CA (1 mi)
- St. Jude Heritage Medical Group, Fullerton, CA (1 mi)
- St. Jude Medical Center, Fullerton, CA (1 mi)
- Marshall B. Ketchum University, Fullerton, CA (2 mi)
- Anaheim Clinical Trials, LLC, Anaheim, CA (3 mi)
- CenExel ACT, Anaheim, CA (3 mi)
- CenExel ACT (Formerly Anaheim Clinical Trials; LLC), Anaheim, CA (3 mi)
- CenExel Anaheim Clinical Trials, Anaheim, CA (3 mi)
- Los Angeles Cancer Network, Anaheim, CA (3 mi)
- Los Angeles cancer Network_Anaheim, Anaheim, CA (3 mi)
- Pacific Cancer Medical Center Inc, Anaheim, CA (3 mi)
- The Oncology Institute of Hope & Innovation, Anaheim, CA (3 mi)
- Keck Medicine of USC Buena Park, Buena Park, CA (4 mi)
- Advanced Research Center, Anaheim, CA (4 mi)
- Clinnova Research, Anaheim, CA (4 mi)
- Oncura Health - Anaheim, Anaheim, CA (4 mi)
- Omega Clinical Trials - La Habra, La Habra, CA (4 mi)
- Kaiser Permanente-Anaheim, Anaheim, CA (5 mi)
- Kaiser Permanente Anaheim Kraemer Medical Offices, Anaheim, CA (5 mi)
Request quotes
Frequently asked questions
How many clinical research sites serve Fullerton?
We list 1005 clinical research sites serving Fullerton, CA: 0 based there and 1005 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which clinical research sites serve Fullerton?
The top-ranked clinical research sites serving Fullerton, CA are Neurology Center of North Orange County, Fullerton Neuro and Headache Ctr, Fullerton Neurological Center, Fullerton Neurology and Headache Center and Providence Medical Foundation. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Fullerton are verified against official records?
10 of the top 10 match an active official record: Neurology Center of North Orange County (ClinicalTrials.gov), Fullerton Neuro and Headache Ctr (ClinicalTrials.gov), Fullerton Neurological Center (ClinicalTrials.gov), Fullerton Neurology and Headache Center (ClinicalTrials.gov) and Providence Medical Foundation (ClinicalTrials.gov), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
How do sponsors judge a research site?
Common checks are enrollment history in the indication, experienced coordinators, IRB arrangements, start-up time and data quality. ClinicalTrials.gov shows which studies a site has been listed on.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .