| Internal Medicine Center, LLC | Mobile | Alabama | 36608 | - |
| Springhill Memorial Hospital | Mobile | Alabama | 36608 | - |
| Investigational Drug Service Pharmacy | La Jolla | California | 92093 | - |
| UCSD Medical Center | La Jolla | California | 92093 | - |
| UCSD Medical Centre | La Jolla | California | 92093 | - |
| Cedars Sinai Medical Center | Los Angeles | California | 90048 | - |
| Cedars Sinai Medical Center - Thalians Bldg | Los Angeles | California | 90048 | - |
| Cedars Sinai Surgery Center | Los Angeles | California | 90048 | - |
| Cedars-Sinai Medical Center | Los Angeles | California | 90048 | - |
| CRC Office - Cedars-Sinai Medical Center - Inflammatory Bowel Disease Center | Los Angeles | California | 90048 | - |
| Desert Advanced Imaging | Palm Springs | California | 92262 | - |
| Erik Palmer, DO | Palm Springs | California | 92262 | - |
| Homan A Zadeh, MD, MPH | Palm Springs | California | 92262 | - |
| Hope Square Surgical Center | Rancho Mirage | California | 92270 | - |
| Sharp Rees-Stealy Medical Group | San Diego | California | 92101 | - |
| Sharp Rees-Stealy Medical Group, Inc. | San Diego | California | 92101 | - |
| Sharp Rees-Stealy Medical Group,Inc | San Diego | California | 92123 | - |
| Endoscopy Center of Connecticut, LLC | Guilford | Connecticut | 06437 | - |
| Endoscopy Center of Connecticut, LLC | Hamden | Connecticut | 06518 | - |
| Gastroenterology Center of Connecticut, PC | Hamden | Connecticut | 06518 | - |
| Medical Research Center of Connecticut, LLC | Hamden | Connecticut | 06518 | - |
| Florida Surgery Center | Altamonte Springs | Florida | 32701 | - |
| Center for Advanced Gastroenterology | Maitland | Florida | 32751 | - |
| MNH Surgical Center | Maitland | Florida | 32751 | - |
| Sand Lake Imaging | Maitland | Florida | 32751 | - |
| North Florida Gastroenterology Research, LLC | Orange Park | Florida | 32073 | - |
| Orange Park Surgery Center | Orange Park | Florida | 32073 | - |
| Citrus Ambulatory Surgery Center | Orlando | Florida | 32806 | - |
| Internal Medicine Specialists | Orlando | Florida | 32806 | - |
| Shafran Gastroenterology Center | Winter Park | Florida | 32789 | - |
| Florida Medical Clinic, P.A. | Zephyrhills | Florida | 33542 | - |
| Georgia Endoscopy Center (Colonoscopy only) | Alpharetta | Georgia | 30005 | - |
| GI Consultants (Colonoscopy only) | Atlanta | Georgia | 30342 | - |
| Emory Healthcare Heart Center (EKG) | Johns Creek | Georgia | 30097 | - |
| Gastroenterology Associates of Central Georgia | Macon | Georgia | 31201 | - |
| Icahn School of Medicine at Mount Sinai | Marietta | Georgia | 30067 | - |
| Atlanta Gastroenterology Specialists, PC | Suwanee | Georgia | 30024 | - |
| Johns Creek Diagnostic Center (X-Ray only) | Suwanee | Georgia | 30024 | - |
| Southwest Gastroenterology | Oak Lawn | Illinois | 60453 | - |
| East Ann Arbor Health and Geriatrics Center - University of Michigan Health Systems | Ann Arbor | Michigan | 48109-2701 | - |
| Medical Science Research Building 1 - University of Michigan Health Systems | Ann Arbor | Michigan | 48109 | - |
| Michigan Clinical Research Unit - Univeristy of Michigan Health System | Ann Arbor | Michigan | 48109-5872 | - |
| Saint Joseph Mercy Hospital - Inpatient Pharmacy (Pharmacy Only) | Ann Arbor | Michigan | 48106 | - |
| University of Michigan Health Systems | Ann Arbor | Michigan | 48109-5000 | - |
| Huron Gastroenterology Associates / Center for Digestive Care | Ypsilanti | Michigan | 48197 | - |
| Michigan Heart SJMH (Blood draws and ECGs only) | Ypsilanti | Michigan | 48106 | - |
| Saint Joseph Mercy Hospital Outpatient Laboratory (Blood draws only) | Ypsilanti | Michigan | 48197 | - |
| Center for Advanced Medicine | St Louis | Missouri | 63110 | - |
| Washington University School of Medicine - Division of Gastroenterology | St Louis | Missouri | 63110 | - |
| NYU Langone Long Island Clinical Research Associates | Great Neck | New York | 11021 | - |
| NYU Langone Nassau Gastroenterology Associates | Great Neck | New York | 11021 | - |
| Columbia University Medical Center | New York | New York | 10032 | - |
| CUMC Research Pharmacy | New York | New York | 10032 | - |
| Kornbluth, Legnani, George MD, PC | New York | New York | 10128 | - |
| Mount Sinai Doctos Faculty Practice | New York | New York | 10029 | - |
| Mount Sinai Medical Center | New York | New York | 10029 | - |
| Mount Sinai School of Medicine | New York | New York | 10029 | - |
| The Private Practice of Simon Lichtiger, MD | New York | New York | 10028 | - |
| Cleveland Clinic | Cleveland | Ohio | 44195 | - |
| Great Lakes Gastroenterology | Mentor | Ohio | 44060 | - |
| Mentor Medical Campus | Mentor | Ohio | 44060 | - |
| The Endoscopy Center of Lake County | Mentor | Ohio | 44060 | - |
| Baylor College of Medicine - Baylor Medical Center (Drug Storage) | Houston | Texas | 77030 | - |
| Baylor College of Medicine (Baylor Medical Center) | Houston | Texas | 77030 | - |
| Gastroenterology Consultants, P.A. | Houston | Texas | 77034 | - |
| Houston Hospital for Specialized Surgery | Houston | Texas | 77004 | - |
| Alpine Medical Group | Salt Lake City | Utah | 84102 | - |
| Wasatch Clinical Research | Salt Lake City | Utah | 84107 | - |
| Wasatch Endoscopy Center | Salt Lake City | Utah | 84124 | - |
| RGL Medical Services (x-ray only) | West Jordan | Utah | 84084 | - |
| Wisconsin Center for Advanced Research - GI Associates, LLC | Milwaukee | Wisconsin | 53215 | - |