| Oklahoma Cancer Specialists and Research Institute-Tulsa | Oklahoma Cancer Specialists and Research Institute-Tulsa |
| Natalie Warren Bryant Cancer Center at St. Francis Hospital | Natalie Warren Bryant Cancer Center at St. Francis Hospital |
| Natalie Warren Bryant Cancer Center at Saint Francis | Natalie Warren Bryant Cancer Center at Saint Francis |
| Vital Prospects Clinical Research Institute, P.C. | Vital Prospects Clinical Research Institute, P.C. |
| St. John Health System | St. John Health System |
| Oklahoma Heart Institute | Oklahoma Heart Institute |
| Laureate Institute for Brain Research | Laureate Institute for Brain Research |
| Cancer Care Associates-Midtown | Cancer Care Associates-Midtown |
| Central States Research | Central States Research |
| Oklahoma Center For Arthritis Therapy & Research | Oklahoma Center For Arthritis Therapy & Research |
| Cancer Treatment Centers of America | Cancer Treatment Centers of America |
| The Movement Disorder Clinic of Oklahoma | The Movement Disorder Clinic of Oklahoma |
| Hillcrest Medical Center | Hillcrest Medical Center |
| Oklahoma State University- Center for Health Sciences | Oklahoma State University- Center for Health Sciences |
| Urologic Specialists of Oklahoma, Inc. | Urologic Specialists of Oklahoma, Inc. |
| LaFortune Cancer Center at St. John Medical Center | LaFortune Cancer Center at St. John Medical Center |
| University of Oklahoma-Tulsa | University of Oklahoma-Tulsa |
| Surgical Associates Inc | Surgical Associates Inc |
| Oklahoma State University Medical Center | Oklahoma State University Medical Center |
| Ascension St John Clinical Research Institute | Ascension St John Clinical Research Institute |
| Gastroenterology United of Tulsa | Gastroenterology United of Tulsa |
| The Eye Institute | The Eye Institute |
| University of Tulsa | University of Tulsa |
| Ascension St. John | Ascension St. John |
| Saint Francis Hospital | Saint Francis Hospital |
| Essential Medical Research, LLC | Essential Medical Research, LLC |
| University of Oklahoma School of Community Medicine | University of Oklahoma School of Community Medicine |
| Laureate Psychiatric Clinic and Hospital | Laureate Psychiatric Clinic and Hospital |
| Allergy Clinic of Tulsa | Allergy Clinic of Tulsa |
| Cancer Treatment Centers of America at Southwestern Regional Medical Center | Cancer Treatment Centers of America at Southwestern Regional Medical Center |
| Allergy, Asthma and Immunology Center, PC | Allergy, Asthma and Immunology Center, PC |
| Oklahoma State University | Oklahoma State University |
| Mark J. Weiss, MD. Inc. | Mark J. Weiss, MD. Inc. |
| Tulsa Retina Consultants | Tulsa Retina Consultants |
| Utica Park Clinic | Utica Park Clinic |
| Hardesty Center for Clinical Research and Neuroscience | Hardesty Center for Clinical Research and Neuroscience |
| Oklahoma Heart Institute at Hillcrest Medical Center | Oklahoma Heart Institute at Hillcrest Medical Center |
| Planned Parenthood of Arkansas and Eastern Oklahoma | Planned Parenthood of Arkansas and Eastern Oklahoma |
| St. John Wound Center | St. John Wound Center |
| Ascension Medical Group - St. John Clinic Infectious Disease | Ascension Medical Group - St. John Clinic Infectious Disease |
| Oklahoma Gastroenterology Associates | Oklahoma Gastroenterology Associates |
| Community Action Project of Tulsa County | Community Action Project of Tulsa County |
| The Children's Hospital at Saint Francis | The Children's Hospital at Saint Francis |
| OSU Behavioral Health Clinic | OSU Behavioral Health Clinic |
| University of Oklahoma Schusterman Clinic | University of Oklahoma Schusterman Clinic |
| Eastern Oklahoma Orthopedic Center | Eastern Oklahoma Orthopedic Center |
| Warren Clinic | Warren Clinic |
| The Orthopaedic Center | The Orthopaedic Center |
| Warren Clinic-Tulsa South | Warren Clinic-Tulsa South |
| Tulsa Bone and Joint | Tulsa Bone and Joint |