#1Cardiovascular Solutions, LLC
Serves this area from Shreveport, LA (40 mi)
Clinical Research Sites in Marion County, TX
The top-ranked clinical research sites serving Marion County, TX are Cardiovascular Solutions, LLC, Louisiana State University and Louisiana State University Health Sciences. We list 42 clinical research sites serving Marion County, TX. 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 Marion County, TX. 42 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 Marion County
#2Louisiana State University
Serves this area from Shreveport, LA (40 mi)#3Louisiana State University Health Sciences
Serves this area from Shreveport, LA (40 mi)#4Louisiana State University Health Sciences Center
Serves this area from Shreveport, LA (40 mi)#5Louisiana State University Health Shreveport
Serves this area from Shreveport, LA (40 mi)#6LSU Health Science Center Shreveport
Serves this area from Shreveport, LA (40 mi)#7LSU Health Sciences Center
Serves this area from Shreveport, LA (40 mi)#8LSU Health Sciences Center at Shreveport
Serves this area from Shreveport, LA (40 mi)#9LSU Health Shreveport
Serves this area from Shreveport, LA (40 mi)#10LSUHSC Shreveport Feist-Weiller Cancer Center
Serves this area from Shreveport, LA (40 mi)
20 more providers serving this area
- Ochsner/LSU Health Shreveport Academic Medical Center, Shreveport, LA (40 mi)
- Ochsner LSU Health Shreveport Ambulatory Care Center, Shreveport, LA (40 mi)
- Trials365, Shreveport, LA (40 mi)
- Willis Knighton, Shreveport, LA (40 mi)
- Willis Knighton Cancer Center, Shreveport, LA (40 mi)
- Willis-Knighton Medical and Cancer Center, Shreveport, LA (40 mi)
- Willis-Knighton Medical Center, Shreveport, LA (40 mi)
- Willis Knighton Physician Network/Gynecologic Oncology Associates, Shreveport, LA (40 mi)
- Louisiana Spine Institute, Shreveport, LA (41 mi)
- Louisiana State University Health Sciences Center Shreveport, Shreveport, LA (41 mi)
- Louisiana State University Health Sciences Shreveport, Shreveport, LA (41 mi)
- LSU Health Shreveport Clinical Trials Office, Shreveport, LA (41 mi)
- Northwest Louisiana Nephrology, Shreveport, LA (41 mi)
- Northwest Louisiana Nephrology, LLC - Shreveport, Shreveport, LA (41 mi)
- Ochsner LSU Health, Shreveport, LA (41 mi)
- Ochsner LSU Health Saint Mary's Medical Center, Shreveport, LA (41 mi)
- Overton Brooks Veteran's Administration Medical Center, Shreveport, LA (41 mi)
- Spine Institute of Louisiana, Shreveport, LA (41 mi)
- Christus Highland Cancer Treatment Center, Shreveport, LA (45 mi)
- CHRISTUS Highland Medical Center, Shreveport, LA (45 mi)
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Frequently asked questions
How many clinical research sites serve Marion County?
We list 42 clinical research sites serving Marion County, TX: 0 based there and 42 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 Marion County?
The top-ranked clinical research sites serving Marion County, TX are Cardiovascular Solutions, LLC, Louisiana State University, Louisiana State University Health Sciences, Louisiana State University Health Sciences Center and Louisiana State University Health Shreveport. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Marion County are verified against official records?
10 of the top 10 match an active official record: Cardiovascular Solutions, LLC (ClinicalTrials.gov), Louisiana State University (ClinicalTrials.gov), Louisiana State University Health Sciences (ClinicalTrials.gov), Louisiana State University Health Sciences Center (ClinicalTrials.gov) and Louisiana State University Health Shreveport (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 .
Communities served
Jefferson, Pine Harbor