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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.

  • William Bowden, DO Private Practice Healdsburg, California, United States 1 trial
  • William Bowen, MD Orthopedic Surgery Willits, California, United States 1 trial
  • William C McGarity, Jr, MD, PC Decatur, Georgia, United States 1 trial
  • William C. Sloan Florham Park, New Jersey, United States 1 trial
  • William Carey University Physical Therapy Program Hattiesburg, Mississippi, United States 1 trial
  • William Carpenter Dallas, Texas, United States 1 trial
  • William Christie, M.D. Cranberry Township, Pennsylvania, United States 1 trial
  • William Coleman, MD Metairie, Louisiana, United States 1 trial
  • William D Summers MD LLC Birmingham, Alabama, United States 1 trial
  • William Dittman Spokane, Washington, United States 1 trial
  • William E. Christoffersen Veterans Home Salt Lake City, Utah, United States 1 trial
  • William E. Kahlert Regional Cancer Center ( Site 3031) Westminster, Maryland, United States 1 trial
  • William Ebbeling MD - PP Fresno, California, United States 1 trial
  • William Ebbeling, MD, Inc Fresno, California, United States 1 trial
  • William Ebbling, MD Inc Fresno, California, United States 1 trial
  • William F Gourash Pittsburgh, Pennsylvania, United States Ongoing trial 1 trial
  • William F. Davitt, III, MD El Paso, Texas, United States 1 trial
  • William F. Ehni, MD Edmonds, Washington, United States 1 trial
  • William F. Ryan Community Health Center New York, New York, United States 1 trial
  • William Fitch, MD San Antonio, 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