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Clinical research

Clinical trial sites in the United States

Clinical trial sites: one pin for each physical site that hosts trials, placed from the address on the trial registration.

  • Trial site
  • Group of pins (click to zoom)

Showing the 40,000 busiest of 306,971 located sites. The map holds only the first 40,000, so narrow the filters to see the rest.

Each pin is one trial site, placed on the map from the address on the trial registration, so it shows part of where trials are run, not all of it. A site with no located address has no pin. A site with a public page on Pharma Observatory links to it; other sites show name, place and trial count only.

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Filters: Country: United States Clear all

Trial sites by region

Select a bar to filter by region.

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Trial sites by region
CategoryTrial sites
North America306,971

Top countries

Country of the site's address. Select a bar to filter.

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Bar colour shows the country's region, as in the chart by region.

Trial sites by country
CategoryTrial sites
United States306,971
Germany73,164
France73,137
Italy48,412
China45,861
Japan38,736
Spain36,429
United Kingdom32,401

Trial sites

306,971 sites. Sites with a public page link to it on Pharma Observatory.

  • Willis-Knighton Physician Network/Tri-State Medical Clinic Shreveport, Louisiana, United States 1 trial
  • Willis-Knighton Physician Network/WK Gynecologic Oncology Associates Shreveport, Louisiana, United States 1 trial
  • Willis-Knighton River Cities Interventional Pain Specialist (Headache & Implanting Physician) Shreveport, Louisiana, United States 1 trial
  • Willoughby Willoughby, Ohio, United States 1 trial
  • Willow Brook Christian Village Delaware, Ohio, United States 1 trial
  • Willow Brook Delaware Run Delaware, Ohio, United States 1 trial
  • Willow Clinic (507) Stanford, California, United States 1 trial
  • Willow Clinic A0507 CRS San Mateo, California, United States 1 trial
  • Willow Creek Pediatrics Draper, Utah, United States 1 trial
  • Willow Creek Women's Hospital Johnson, Arkansas, United States 1 trial
  • Willow Grove DaVita Willow Grove, Pennsylvania, United States 1 trial
  • Willow Park, Texas Willow Park, Texas, United States Ongoing trial 1 trial
  • Willow Rheumatology and Wellness /ID# 272691 Willowbrook, Illinois, United States Ongoing trial 1 trial
  • Willow Rheumatology and Wellness, PLLC ( Site 0035) Willowbrook, Illinois, United States Ongoing trial 1 trial
  • Willow Rheumatology and Wellness, PLLC /ID# 253018 Willowbrook, Illinois, United States Ongoing trial 1 trial
  • Willow Rheumatology and Wellness, PLLC /ID# 254712 Willowbrook, Illinois, United States 1 trial
  • Willow Rheumatology and Wellness, PLLC /ID# 277354 Willowbrook, Illinois, United States Ongoing trial 1 trial
  • Willow Rheumatology and Wellness- Site Number : 8400012 Willowbrook, Illinois, United States Ongoing trial 1 trial
  • WillowWood Global Mount Sterling, Ohio, United States Ongoing trial 1 trial
  • Willowbend Health & Wellness Plano, Texas, United States 1 trial

Explore the data behind the map on Pharma Observatory

Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.

Visit Pharma Observatory