| University of Alabama-The Kirklin Clinic | Birmingham | Alabama | 35233 | - |
| Digestive Health Specialists | Dothan | Alabama | 36301 | - |
| Lakeview Clinical Research | Guntersville | Alabama | 35976 | - |
| Care Access Research - Tuscaloosa | Tuscaloosa | Alabama | 35406 | - |
| Research Solutions of Arizona | Litchfield Park | Arizona | 85340 | - |
| Central Arizona Medical Associates, PC | Mesa | Arizona | 85206 | - |
| Arizona Arthritis & Rheumatology Research, PLLC | Phoenix | Arizona | 85037 | - |
| Reliance Research | Scottsdale | Arizona | 85260 | - |
| Synexus Site Network | Tempe | Arizona | 85282 | - |
| inSite Digestive Health Care | Arcadia | California | 91006 | - |
| B G Clinical Research, Inc. | Encinitas | California | 92024 | - |
| Care Access - Gilroy | Gilroy | California | 95020 | - |
| Newport Huntington Med Grp | Huntington Beach | California | 92648 | - |
| Om Research, LLC | Lancaster | California | 93534 | - |
| GastroIntestinal Biosciences Clinical Trials | Los Angeles | California | 90067 | - |
| California Medical Research Associates | Northridge | California | 91324 | - |
| University of California Irvine | Orange | California | 92868 | - |
| inSite Digestive Health Care | Pasadena | California | 91105 | - |
| Care Access Research - San Jose | San Jose | California | 95124 | - |
| Wolverine Clinical Trials, LLC | Santa Ana | California | 92705 | - |
| Fomat Medical Research, Inc. | Thousand Oaks | California | 91360 | - |
| Connecticut Gastroenterology | Manchester | Connecticut | 06040 | - |
| IMR of South Florida | Aventura | Florida | 33180 | - |
| Gastroenterology Consultants of Clearwater | Clearwater | Florida | 33756 | - |
| West Central Gastroenterology d/b/a Gastro Florida | Clearwater | Florida | 33761 | - |
| Doral Medical Research | Hialeah | Florida | 33016 | - |
| Inpatient Research Clinic | Hialeah | Florida | 33013 | - |
| C2 Research Center, LLC | Jacksonville | Florida | 32204 | - |
| Central Florida Gastro Research | Kissimmee | Florida | 34744 | - |
| I.H.S. Health, LLC | Kissimmee | Florida | 34741 | - |
| Florida Research Institute | Lakewood Rch | Florida | 34211 | - |
| Wellness Clinical Research | Lehigh Acres | Florida | 33936 | - |
| Columbus Clinical Services, LLC | Miami | Florida | 33125 | - |
| Coral Research Clinic Corp | Miami | Florida | 33186 | - |
| Ezy Medical Research | Miami | Florida | 33175 | - |
| Infinite Clinical Research | Miami | Florida | 33133 | - |
| Nickalus Children's Hospital Research Institute | Miami | Florida | 33155 | - |
| Research Associates of South Florida, LLC | Miami | Florida | 33156 | - |
| SaludMax Medical Corp | Miami | Florida | 33165 | - |
| Goji Group - Research Trials Group | Miami Lakes | Florida | 33016 | - |
| Wellness Clinical Research | Miami Lakes | Florida | 33016 | - |
| Care Access Research - Orlando | Orlando | Florida | 32825 | - |
| Center for Interventional Endoscopy | Orlando | Florida | 32803 | - |
| Clintheory Healthcare | Orlando | Florida | 32819 | - |
| Digestive and Liver Center of Florida | Orlando | Florida | 32825 | - |
| Endoscopic Research Inc | Orlando | Florida | 32803 | - |
| Orlando Health, Inc | Orlando | Florida | 32806 | - |
| Gastroenterology Associates of Pensacola, PA | Pensacola | Florida | 32503 | - |
| Synexus Clinical Research US, Inc. | Pinellas Park | Florida | 33781 | - |
| USPA Advance Concept Medical Research Group LLC. | South Miami | Florida | 33143 | - |
| Precision Clinical Research | Sunrise | Florida | 33351 | - |
| Advanced Research | Tamarac | Florida | 33321 | - |
| Alliance Clinical Research, LLC | Tampa | Florida | 33615 | - |
| University of South Florida | Tampa | Florida | 33612 | - |
| Digestive Healthcare of Georgia | Atlanta | Georgia | 30309 | - |
| Grady Memorial Hospital | Atlanta | Georgia | 30303 | - |
| Columbus Regional Research Institute | Columbus | Georgia | 31904 | - |
| Gastrointestinal Specialists of Georgia | Marietta | Georgia | 30060 | - |
| Grand Teton Research Group | Idaho Falls | Idaho | 83404 | - |
| Eagle Clinical Research | Chicago | Illinois | 60621 | - |
| Qualmedica Research, LLC | Evansville | Indiana | 47715 | - |
| Indiana University Health | Indianapolis | Indiana | 46202 | - |
| Care Access Research - Terre Haute | Terre Haute | Indiana | 47802 | - |
| University of Kansas Medical Center | Kansas City | Kansas | 66160 | - |
| Robley Rex VA Medical Center | Louisville | Kentucky | 40206 | - |
| CroNola LLC | Houma | Louisiana | 70360 | - |
| Delta Research Partners LLC | Monroe | Louisiana | 71201 | - |
| Nola Research Works, LLC | New Orleans | Louisiana | 70125 | - |
| Louisiana Clinical Research, LLC | Shreveport | Louisiana | 71105 | - |
| MGG Group, Inc.., Co., Chevy Chase Clinical Research | Chevy Chase | Maryland | 20815 | - |
| Woodholme Gastroenterology Associates - Glen Burnie | Glen Burnie | Maryland | 21061 | - |
| Capital Digestive Care | Rockville | Maryland | 20850 | - |
| Tufts Medical Center | Boston | Massachusetts | 02111 | - |
| Clinical Research Institute of Michigan, LLC | Chesterfield | Michigan | 48047 | - |
| Henry Ford Health System | Detroit | Michigan | 48202 | - |
| Revive Research Institute | Farmington Hills | Michigan | 48334 | - |
| Infusion Associates | Grand Rapids | Michigan | 49525 | - |
| MNGI Digestive Health, P.A. | Plymouth | Minnesota | 55446 | - |
| Gastrointestinal Associates | Flowood | Mississippi | 39232 | - |
| Southern Therapy and Advanced Research (STAR) LLC | Jackson | Mississippi | 39216 | - |
| University of Mississippi School of Medicine | Jackson | Mississippi | 39216-4500 | - |
| Digestive Health Specialists | Tupelo | Mississippi | 38801 | - |
| BVL Research | Liberty | Missouri | 64068 | - |
| Advanced Biomedical Research of America - South Eastern Avenue | Las Vegas | Nevada | 89123 | - |
| Care Access - Las Vegas | Las Vegas | Nevada | 89148 | - |
| Lovelace Scientific Resources - Albuquerque | Albuquerque | New Mexico | 87108 | - |
| NYU Langone Long Island Clinical Research Associates | Lake Success | New York | 11042 | - |
| Care Access Research - Yonkers | Yonkers | New York | 10701 | - |
| Unc Hospitals | Chapel Hill | North Carolina | 27599 | - |
| Javara | Charlotte | North Carolina | 28210 | - |
| Medication Management | Greensboro | North Carolina | 27405 | - |
| Peters Medical Research | High Point | North Carolina | 27262 | - |
| Care Access Research-Kinston | Kinston | North Carolina | 28501 | - |
| Care Access Research-Lumberton | Lumberton | North Carolina | 28358 | - |
| Gastroenterology Associates of the Piedmont | Winston-Salem | North Carolina | 27103 | - |
| University Hospitals Cleveland Medical Center | Cleveland | Ohio | 44106 | - |
| Ohio State University Hospital | Columbus | Ohio | 43210 | - |
| Ohio Gastroenterology Group Inc. | Dublin | Ohio | 43016 | - |
| Northshore Gastroenterology Research, LLC | Westlake | Ohio | 44145 | - |
| University of Oklahoma Health Sciences Center | Oklahoma City | Oklahoma | 73104 | - |
| Care Access Research LLC | Pottsville | Pennsylvania | 17901 | - |
| Care Access Research - Scranton | Scranton | Pennsylvania | 18508 | - |
| University Gastroenterology | Providence | Rhode Island | 02905 | - |
| Radiant Research | Anderson | South Carolina | 29621 | - |
| Strand GI | Myrtle Beach | South Carolina | 29572 | - |
| Gastroenterology Associates of Orangeburg | Orangeburg | South Carolina | 29118 | - |
| Gastro One | Germantown | Tennessee | 38138 | - |
| GIA Clinical Trials, LLC | Knoxville | Tennessee | 37909 | - |
| Amel Med LLC | Austin | Texas | 78750 | - |
| Baylor Scott & White Center for Inflammatory Bowel Diseases | Dallas | Texas | 75246 | - |
| Advanced Gastroenterology Associates | Decatur | Texas | 76234 | - |
| University of Texas Medical Branch at Galveston | Galveston | Texas | 77555 | - |
| Baylor College of Medicine | Houston | Texas | 77030 | - |
| Biopharma Informatic, LLC | Houston | Texas | 77084 | - |
| University of Texas Health Services Center - Houston | Houston | Texas | 77030 | - |
| Katy Gastro Health & Nutrition | Katy | Texas | 77494 | - |
| Caprock Gastro Research, LLC | Lubbock | Texas | 79424 | - |
| Biopharma Informatic, LLC | McAllen | Texas | 78503 | - |
| Digestive System Healthcare | Pasadena | Texas | 77505 | - |
| Southern Star Research Institute, LLC | San Antonio | Texas | 78229 | - |
| Sun Research Institute | San Antonio | Texas | 78215 | - |
| VIP Trials | San Antonio | Texas | 78230 | - |
| Tyler Research Institute, LLC | Tyler | Texas | 75701 | - |
| Care Access Research LLC - Salt Lake City | Ogden | Utah | 84403 | - |
| Velocity Clinical Research/Gut Whisperer | Riverton | Utah | 84065 | - |
| Care Access Research LLC - Salt Lake City | Salt Lake City | Utah | 84124 | - |
| Kalo Clinical Research | Salt Lake City | Utah | 84102 | - |
| University of Virginia Health System | Charlottesville | Virginia | 22908-0816 | - |
| Pediatrics Specialists of Virginia | Fairfax | Virginia | 22031 | - |
| Children's Specialty Group, PPLC | Norfolk | Virginia | 23507 | - |
| The Center for Gastrointestinal Health | Petersburg | Virginia | 23805 | - |
| Clinical Research Partners, LLC | Richmond | Virginia | 23226 | - |
| Carilion Clinic | Roanoke | Virginia | 24014 | - |
| Virginia Gastroenterology Institute | Suffolk | Virginia | 23434 | - |
| TPMG Clinical Research Williamsburg | Williamsburg | Virginia | 23188 | - |
| Washington Gastroenterology, PLLC | Bellevue | Washington | 98004 | - |
| Advanced Clinical Research-Spokane Gastroenterology | Spokane | Washington | 99202 | - |
| Washington Gastroenterology, PLLC | Tacoma | Washington | 98405 | - |
| Marshall Medical Center | Huntington | West Virginia | 25701 | - |
| Care Access Research - Wyoming | Casper | Wyoming | 82601 | - |