#1DCOL Center for Clinical Research
Based in TX
Clinical Research Sites in Gregg County, TX
The top-ranked clinical research sites serving Gregg County, TX are DCOL Center for Clinical Research, DCOL Ctr for Clin Res and Texas Oncology. We list 30 clinical research sites serving Gregg 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 Gregg County, TX. 30 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 Gregg County
#2DCOL Ctr for Clin Res
Based in TX#3Texas Oncology
Based in Longview, TX#4Texas Oncology Longview
Based in Longview, TX#5Texas Oncology-Longview Cancer Center
Based in Longview, TX#6Texas Oncology - Northeast Texas
Based in Longview, TX#7The University of Texas Health Science Center at Tyler
Serves this area from TX#8University of Texas at Tyler
Serves this area from TX#9University of Texas Health Center at Tyler
Serves this area from TX#10University of Texas Health Science Center
Serves this area from TX
20 more providers serving this area
- University of Texas Health Science Center at Tyler, TX
- Christus Health, Tyler, TX (30 mi)
- Christus Mother Frances Hospital, Tyler, TX (30 mi)
- Christus Trinity Mother Frances Health System, Tyler, TX (30 mi)
- Christus Trinity Mother Frances Health System-Hospital, Tyler, TX (30 mi)
- HOPE Cancer Center of East Texas, Tyler, TX (30 mi)
- Precision Spine Care, Tyler, TX (30 mi)
- Texas Oncology, Tyler, TX (30 mi)
- Texas Oncology - Northeast, Tyler, TX (30 mi)
- Texas Oncology Northeast Texas, Tyler, TX (30 mi)
- Texas Oncology - Tyler, Tyler, TX (30 mi)
- Texas Oncology (Tyler) - USOR, Tyler, TX (30 mi)
- The University of Texas Health Science Center at Tyler dba UT Health East Texas HOPE Cancer Center, Tyler, TX (30 mi)
- Tyler Cancer Center, Tyler, TX (30 mi)
- Tyler Cardiovascular Consultants, Tyler, TX (30 mi)
- Tyler Research Institute, Tyler, TX (30 mi)
- Tyler Research Institute, LLC - Site Number: 8400095, Tyler, TX (30 mi)
- UT Health East Texas HOPE Cancer Center, Tyler, TX (30 mi)
- Tyler Retina Consultants, TX
- Care Access - Tyler - Clinical Trials Center by Walmart & Care Access, TX
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Frequently asked questions
How many clinical research sites serve Gregg County?
We list 30 clinical research sites serving Gregg County, TX: 6 based there and 24 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 Gregg County?
The top-ranked clinical research sites serving Gregg County, TX are DCOL Center for Clinical Research, DCOL Ctr for Clin Res, Texas Oncology, Texas Oncology Longview and Texas Oncology-Longview Cancer Center. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Gregg County are verified against official records?
10 of the top 10 match an active official record: DCOL Center for Clinical Research (ClinicalTrials.gov), DCOL Ctr for Clin Res (ClinicalTrials.gov), Texas Oncology (ClinicalTrials.gov), Texas Oncology Longview (ClinicalTrials.gov) and Texas Oncology-Longview Cancer Center (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 .
Cities in Gregg County
Communities served
Kilgore, Gladewater, White Oak, Liberty City, Lakeport, Clarksville City, Easton, Warren City