| Phoenix VA Health Care System /ID# 162267 | Phoenix | Arizona | 85012 | - |
| HonorHealth Research Institute - Shea /ID# 161783 | Scottsdale | Arizona | 85258 | - |
| Digestive Disease Consultants, A Division of Arizona Digestive Health, P.C /ID# 211883 | Tempe | Arizona | 85284-2604 | - |
| University of Arizona /ID# 158469 | Tucson | Arizona | 85724 | - |
| Atria Clinical Research /ID# 164740 | Little Rock | Arkansas | 72209-7040 | - |
| Newport Huntington Medica /ID# 213033 | Huntington Beach | California | 92648-5994 | - |
| United Medical Doctors /ID# 207040 | Los Alamitos | California | 90720-3309 | - |
| Gastrointestinal Biosciences Clinical Trials, LLC /ID# 162656 | Los Angeles | California | 90067-2001 | - |
| TLC Clinical Research Inc /ID# 212503 | Los Angeles | California | 90048 | - |
| United Medical Doctors - Murrieta /ID# 158424 | Murrieta | California | 92563 | - |
| Southern CA Research Ctr., Inc /ID# 167875 | Riverside | California | 92501 | - |
| University of California, San Francisco /ID# 157143 | San Francisco | California | 94158 | - |
| Cedars-Sinai Medical Center-West Hollywood /ID# 163842 | West Hollywood | California | 90048 | - |
| Peak Gastroenterology Associates, PC /ID# 165834 | Colorado Springs | Colorado | 80907 | - |
| Rocky Mountain Pediatric Gastroenterology /ID# 207169 | Lone Tree | Colorado | 80124-6798 | - |
| Western Connecticut Medical Group /ID# 165849 | Danbury | Connecticut | 06810-6000 | - |
| Seffner Premier Health Care, PA /ID# 162265 | Brandon | Florida | 33510 | - |
| Clinical Research of West Florida, Inc /ID# 204859 | Clearwater | Florida | 33765 | - |
| Clinical Research of West Florida, Inc /ID# 207450 | Clearwater | Florida | 33765 | - |
| South Lake Pain Institute, Inc /ID# 162825 | Clermont | Florida | 34711 | - |
| Universal Axon Clinical Research /ID# 165432 | Doral | Florida | 33166 | - |
| Nature Coast Clinical Research - Inverness /ID# 159414 | Inverness | Florida | 34452-4717 | - |
| SIH Research Mumtaz, Inc /ID# 163082 | Kissimmee | Florida | 34741-4161 | - |
| Alliance Medical Research /ID# 163840 | Lighthouse PT | Florida | 33064 | - |
| Cfagi Llc /Id# 201571 | Maitland | Florida | 32751-6108 | - |
| Coral Research Clinic /ID# 158549 | Miami | Florida | 33186-4643 | - |
| ITB Research /ID# 161334 | Miami | Florida | 33176 | - |
| South Florida Research Ph I-IV, Inc. /ID# 161836 | Miami | Florida | 33193 | - |
| Vista Health Research, LLC /ID# 212664 | Miami | Florida | 33176-1032 | - |
| Gastroenterology Group Naples /ID# 165206 | Naples | Florida | 34102 | - |
| Advanced Research Institute, Inc /ID# 161959 | New Port Richey | Florida | 34653 | - |
| Endoscopic Research, Inc. /ID# 205901 | Orlando | Florida | 32803 | - |
| Omega Research Maitland, LLC /ID# 171081 | Orlando | Florida | 32810-2907 | - |
| IMIC Inc. Medical Research /ID# 154943 | Palmetto Bay | Florida | 33157 | - |
| Clinical Research Trials of Florida, Inc. /ID# 201014 | Tampa | Florida | 33607 | - |
| Gastroenterology Associates of Central Georgia, LLC /ID# 154857 | Macon | Georgia | 31201 | - |
| Northwestern University Division of GI/Hepatology /ID# 158283 | Chicago | Illinois | 60611-2927 | - |
| The University of Chicago Medical Center /ID# 157141 | Chicago | Illinois | 60637-1443 | - |
| NorthShore University HealthSystem /ID# 158287 | Evanston | Illinois | 60201 | - |
| Southwest Gastroenterology /ID# 165002 | Oak Lawn | Illinois | 60453 | - |
| Cotton-O'Neil Clinical Res Ctr /ID# 154738 | Topeka | Kansas | 66606 | - |
| University of Kentucky Chandler Medical Center /ID# 157137 | Lexington | Kentucky | 40536 | - |
| University of Louisville /ID# 210521 | Louisville | Kentucky | 40202 | - |
| Gastroenterology Associates LLC - Jefferson Hwy /ID# 161956 | Baton Rouge | Louisiana | 70809 | - |
| Houma Digestive Health Special /ID# 158286 | Houma | Louisiana | 70360 | - |
| Delricht Research /ID# 206542 | New Orleans | Louisiana | 70115 | - |
| Nola Research Works, LLC /ID# 161330 | New Orleans | Louisiana | 70115 | - |
| Louisana Research Center, LLC /ID# 162236 | Shreveport | Louisiana | 71105-6800 | - |
| MGG Group Co, Inc.Chevy Chase Clinical Research /ID# 154839 | Chevy Chase | Maryland | 20815 | - |
| Gastro Center of Maryland /ID# 165004 | Columbia | Maryland | 21045 | - |
| University of Michigan Health Systems /ID# 157144 | Ann Arbor | Michigan | 48109 | - |
| Center for Digestive Health /ID# 154690 | Troy | Michigan | 48098-6363 | - |
| Gastroenterology Associates of Western Michigan, PLC d.b.a. West Michigan Clinic /ID# 161328 | Wyoming | Michigan | 49519 | - |
| Mayo Clinic - Rochester /ID# 163085 | Rochester | Minnesota | 55905-0001 | - |
| Southern Therapy and Advanced Research (STAR) LLC /ID# 162388 | Jackson | Mississippi | 39216 | - |
| St. Louis University /ID# 161902 | St Louis | Missouri | 63104 | - |
| University of Nebraska Medical Center /ID# 210057 | Omaha | Nebraska | 68198-2000 | - |
| Las Vegas Medical Research /ID# 160172 | Las Vegas | Nevada | 89113 | - |
| Revival Research Institute, Inc /ID# 210984 | Las Vegas | Nevada | 89128-3157 | - |
| NY Scientific /ID# 158418 | Brooklyn | New York | 11235 | - |
| Saratoga Schenectady Gastroenterology Associates - Burnt Hills /ID# 212036 | Burnt Hills | New York | 12027 | - |
| Intercity Advanced Gastroentertology Center /ID# 213399 | Fresh Meadows | New York | 11366 | - |
| Duplicate_Long Island Clinical Research /ID# 154836 | Great Neck | New York | 11021-5343 | - |
| Digestive Disease Care /ID# 209619 | New Hyde Park | New York | 11040 | - |
| North Shore University Hospital /ID# 168736 | New Hyde Park | New York | 11040 | - |
| Columbia Univ Medical Center /ID# 161911 | New York | New York | 10032-3725 | - |
| Lenox Hill Hospital /ID# 168465 | New York | New York | 10075 | - |
| NYU Langone Medical Center /ID# 160171 | New York | New York | 10016-6402 | - |
| DiGiovanna Institute for Medical Education & Research /ID# 171118 | North Massapequa | New York | 11758 | - |
| Univ NC Chapel Hill /ID# 154840 | Chapel Hill | North Carolina | 27514-4220 | - |
| Atrium Health Carolinas Medical Center /ID# 158481 | Charlotte | North Carolina | 28203 | - |
| Clinical Trials America /ID# 158484 | Hickory | North Carolina | 28601 | - |
| Vidant Multispecialty Clinic - Kinston /ID# 161111 | Kinston | North Carolina | 28501-1589 | - |
| Wake Radiology UNC REX Healthcare - Raleigh Office /ID# 154880 | Raleigh | North Carolina | 27612 | - |
| Plains Clinical Research Center, LLC /ID# 169715 | Fargo | North Dakota | 58104-5925 | - |
| Tri-State Endoscopy /ID# 154933 | Cincinnati | Ohio | 45219 | - |
| Cleveland Clinic Main Campus /ID# 208171 | Cleveland | Ohio | 44195 | - |
| Optimed Research, Ltd. /ID# 167901 | Columbus | Ohio | 43235 | - |
| The Ohio State University /ID# 164709 | Columbus | Ohio | 43210 | - |
| Hometown Urgent Care and Resea /ID# 170453 | Dayton | Ohio | 45424 | - |
| Great Lakes Medical Research, LLC /ID# 201732 | Mentor | Ohio | 44060-6211 | - |
| Digestive Disease Specialists /ID# 170774 | Oklahoma City | Oklahoma | 73112 | - |
| Hightower Clinical /ID# 211938 | Oklahoma City | Oklahoma | 73102 | - |
| Adult Gastroenterology Associates - Gen 1 Research /ID# 206125 | Tulsa | Oklahoma | 74136-7823 | - |
| Northwest Gastroenterology Clinic /ID# 158288 | Portland | Oregon | 97210 | - |
| PennState Milton S.Hershey Med /ID# 154883 | Hershey | Pennsylvania | 17033 | - |
| Children's Hospital of Pittsburgh of UPMC /ID# 210920 | Pittsburgh | Pennsylvania | 15224-1334 | - |
| Digestive Disease Associates, LTD /ID# 208847 | Wyomissing | Pennsylvania | 19610-2002 | - |
| Medical University of South Carolina /ID# 212579 | Charleston | South Carolina | 29425 | - |
| Gastroenterology Associates, P.A. of Greenville /ID# 154911 | Greenville | South Carolina | 29615-3593 | - |
| Rapid City Medical Center - GI Research /ID# 163841 | Rapid City | South Dakota | 57701 | - |
| Gastro One /ID# 154742 | Germantown | Tennessee | 38138 | - |
| East Tennessee Research Institute /ID# 168737 | Johnson City | Tennessee | 37604 | - |
| Duplicate_Clinical Neuroscience Solutions /ID# 164181 | Memphis | Tennessee | 38119-4823 | - |
| Vanderbilt University Medical Center /ID# 157138 | Nashville | Tennessee | 37232-0011 | - |
| TX Clinical Research Institute /ID# 159410 | Arlington | Texas | 76012 | - |
| Inquest Clinical Research /ID# 165695 | Baytown | Texas | 77521-2415 | - |
| Texas Digestive Disease Consultants /ID# 209596 | Cedar Park | Texas | 78613-5028 | - |
| Texas Digestive Disease Consultants /ID# 209785 | Cedar Park | Texas | 78613-5028 | - |
| Baylor Scott & White Center for Inflammatory Bowel Diseases /ID# 201848 | Dallas | Texas | 75246 | - |
| DHAT Research Institute /ID# 158217 | Garland | Texas | 75044-2208 | - |
| Baylor College of Medicine - Baylor Medical Center /ID# 158212 | Houston | Texas | 77030-3411 | - |
| Centex Studies, Inc. - Houston /ID# 200720 | Houston | Texas | 77058 | - |
| CliniCore International, LLC /ID# 158209 | Houston | Texas | 77027-6812 | - |
| Precision Research Institute, LLC /ID# 200503 | Houston | Texas | 77036 | - |
| Vilo Research Group Inc /ID# 206130 | Houston | Texas | 77017-2337 | - |
| Clinical Associates in Research Therapeutics of America, LLC /ID# 161336 | San Antonio | Texas | 78212 | - |
| Southern Star Research Institute, LLC /ID# 168770 | San Antonio | Texas | 78229-5390 | - |
| Tyler Research Institute, LLC /ID# 166796 | Tyler | Texas | 75701-4464 | - |
| Gastro Health & Nutrition - Victoria /ID# 164296 | Victoria | Texas | 77904 | - |
| HP Clinical Research /ID# 162998 | Bountiful | Utah | 84010 | - |
| Advanced Research Institute /ID# 154914 | Ogden | Utah | 84403 | - |
| Velocity Clinical Research - Salt Lake City /ID# 161781 | West Jordan | Utah | 84088 | - |
| McGuire DV AMC /ID# 159990 | Richmond | Virginia | 23249 | - |
| Washington Gastroenterology Associates /ID# 162120 | Bellevue | Washington | 98004 | - |
| Virginia Mason - Seattle Orthapedics /ID# 155545 | Seattle | Washington | 98101 | - |
| WVU Medicine /ID# 167940 | Morgantown | West Virginia | 26506-1200 | - |