#1Marshfield Medical Center - Neillsville
Based in WI
Clinical Research Sites in Clark County, WI
The top-ranked clinical research sites serving Clark County, WI are Marshfield Medical Center - Neillsville, Marshfield Clinic and Marshfield Clinic Health System. We list 23 clinical research sites serving Clark County, WI. 23 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 Clark County, WI. 23 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 Clark County
#2Marshfield Clinic
Serves this area from WI#3Marshfield Clinic Health System
Serves this area from WI#4Marshfield Clinic Research Institute
Serves this area from WI#5Marshfield Medical Center
Serves this area from WI#6Marshfield Medical Center-Marshfield
Serves this area from WI#7Saint Joseph's Hospital
Serves this area from WI#8Aspirus Medford Hospital
Serves this area from WI#9Marshfield Clinic-Chippewa Center
Serves this area from Chippewa Falls, WI (41 mi)#10HSHS Sacred Heart Hospital
Serves this area from WI
13 more providers serving this area
- Marshfield Clinic Cancer Center at Sacred Heart, WI
- Marshfield Clinic Cancer Center - Eau Claire, WI
- Marshfield Medical Center-EC Cancer Center, WI
- Mayo Clinic Health System-Eau Claire, WI
- Mayo Clinic Health System-Eau Claire Clinic, WI
- Sacred Heart Hospital, WI
- Mayo Clinic Health System, Eau Claire, WI (45 mi)
- Mayo Clinic Health System Eau Claire Hospital-Luther Campus, Eau Claire, WI (45 mi)
- Aspirus Cancer Care-Wausau, WI
- Aspirus Hospital, WI
- Aspirus Regional Cancer Center, WI
- Aspirus Research Institute, WI
- Marshfield Clinic-Wausau Center, WI
Request quotes
Frequently asked questions
How many clinical research sites serve Clark County?
We list 23 clinical research sites serving Clark County, WI: 1 based there and 22 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 Clark County?
The top-ranked clinical research sites serving Clark County, WI are Marshfield Medical Center - Neillsville, Marshfield Clinic, Marshfield Clinic Health System, Marshfield Clinic Research Institute and Marshfield Medical Center. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Clark County are verified against official records?
10 of the top 10 match an active official record: Marshfield Medical Center - Neillsville (ClinicalTrials.gov), Marshfield Clinic (ClinicalTrials.gov), Marshfield Clinic Health System (ClinicalTrials.gov), Marshfield Clinic Research Institute (ClinicalTrials.gov) and Marshfield Medical 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 .
Communities served
Neillsville, Thorp, Loyal, Greenwood, Owen, Dorchester, Withee, Granton, Curtiss, Humbird, Chili