| Cleveland Clinic Foundation | Cleveland, OH | 59 |
| Emory University | Atlanta, GA | 36 |
| Beth Israel Deaconess Medical Center, Inc. | Boston, MA | 26 |
| Duke University Health System | Durham, NC | 25 |
| UPMC Medical Education | Pittsburgh, PA | 23 |
| Medical University of South Carolina and Affiliates | Charleston, SC | 23 |
| University of Pittsburgh Physicians | Pittsburgh, PA | 20 |
| Columbia University | New York, NY | 20 |
| Mayo Clinic | Rochester, MN | 20 |
| University of Rochester | Rochester, NY | 19 |
| University of Colorado | Boulder, CO | 18 |
| Oregon Health & Science University | Portland, OR | 18 |
| University of Alabama Health Services Foundation, PC | Birmingham, AL | 18 |
| University of Washington | Seattle, WA | 18 |
| Cleveland Clinic Florida | Weston, FL | 16 |
| VCU Health System Authority | Richmond, VA | 16 |
| Southern Illinois Medical Services | Carbondale, IL | 15 |
| Hartford HealthCare Medical Group, Inc. | Wethersfield, CT | 14 |
| Medical College of Wisconsin, Inc. | Milwaukee, WI | 13 |
| University of Utah | Salt Lake City, UT | 13 |
| NYU Grossman School of Medicine | New York, NY | 13 |
| University Of Miami | Miami, FL | 12 |
| University of Texas Medical Branch | Galveston, TX | 12 |
| University Hospitals Medical Group, Inc. | Cleveland, OH | 11 |
| Montefiore Medical Center | Bronx, NY | 10 |
| United Health Services Hospitals, Inc. | Binghamton, NY | 10 |
| Banner University Medical Group | Phoenix, AZ | 10 |
| Harvard Medical Faculty Physicians At Beth Israel Deaconess Medical Center | Woburn, MA | 9 |
| Memorial Sloan Kettering Cancer Center | New York, NY | 9 |
| University Of Kentucky | Lexington, KY | 9 |
| Bayhealth Medical Center, Inc. | Dover, DE | 8 |
| University Physicians & Surgeons, Inc. | Huntington, WV | 8 |
| The University of Iowa | Iowa City, IA | 8 |
| H. Lee Moffitt Cancer Center & Research Institute Lifetime Cancer Screening Center, Inc | Tampa, FL | 8 |
| University of Minnesota Physicians | Minneapolis, MN | 8 |
| Eastern Maine Medical Center | Bangor, ME | 8 |
| Appalachian Regional Healthcare, Inc. | Hazard, KY | 8 |
| Commonwealth Health Corporation | Bowling Green, KY | 7 |
| University of Michigan | Ann Arbor, MI | 7 |
| West Virginia University Medical Corporation | Morgantown, WV | 7 |
| Houston Methodist Specialty Physicians | Houston, TX | 7 |
| Willis Knighton Medical Center, Inc. | Shreveport, LA | 7 |
| SSM Health Care Group | St. Louis, MO | 7 |
| Scott & White Clinic | Temple, TX | 7 |
| Henry Ford Health System | Detroit, MI | 7 |
| OU Health Partners, Inc. | Oklahoma City, OK | 6 |
| The Leland Stanford, Jr University | Stanford, CA | 6 |
| Brigham and Women's Physicians Organization, Inc | Somerville, MA | 6 |
| Ozarks Medical Center | West Plains, MO | 6 |
| Prevea Clinic, Inc. | Green Bay, WI | 6 |
| Physician Affiliate Group Of Ny, PC | New York, NY | 6 |
| Franciscan Medical Group | Tacoma, WA | 6 |
| Denver Health and Hospital Authority | Denver, CO | 6 |
| Iowa Physicians Clinic Medical Foundation | West Des Moines, IA | 6 |
| The Mary Imogene Bassett Hospital | Cooperstown, NY | 6 |
| Kadlec Regional Medical Center | Renton, WA | 6 |
| Spectrum Health Primary Care Partners | Grand Rapids, MI | 6 |
| University of California, Los Angeles | Los Angeles, CA | 6 |
| Rutgers, The State University of New Jersey | Newark, NJ | 6 |
| Roswell Park Cancer Institute | Buffalo, NY | 5 |
| The Ohio State University | Columbus, OH | 5 |
| The Permanente Medical Group, Inc. | Pleasanton, CA | 5 |
| LV Surgery Associates PLLC | Las Vegas, NV | 5 |
| Valley Health System | Winchester, VA | 5 |
| University of Chicago Medical Center | Chicago, IL | 5 |
| Icahn School of Medicine at Mount Sinai | New York, NY | 5 |
| Thomas Jefferson University Hospital | Philadelphia, PA | 5 |
| Ochsner Clinic Foundation | New Orleans, LA | 5 |
| Edward W. Sparrow Hospital Association | Lansing, MI | 5 |
| Roswell Clinic Corporation | Roswell, NM | 5 |
| Stony Brook Surgical Associates, UFPC | Stony Brook, NY | 5 |
| Mary Hitchcock Memorial Hospital | Lebanon, NH | 5 |
| Baylor College of Medicine | Houston, TX | 5 |
| Christiana Institute of Advanced Surgery | Newark, DE | 5 |
| Guthrie Medical Group, P.C. | Sayre, PA | 5 |
| Las Cruces Physician Practices, LLC | Las Cruces, NM | 5 |
| Baptist Health South Florida, Inc. | Miami, FL | 5 |
| West Virginia University | Morgantown, WV | 5 |
| University of Illinois | Urbana, IL | 5 |
| US Army Defense Language Institute Foreign Language Center | Monterey, CA | 5 |
| Pratt Surgical Associates, Inc. (TMCPO) | Boston, MA | 4 |
| University of Arkansas for Medical Sciences | Little Rock, AR | 4 |
| Massachusetts General Physicians Organization | Somerville, MA | 4 |
| University Of California, San Diego | La Jolla, CA | 4 |
| New York Society for Relief of Ruptured & Crippled | New York, NY | 4 |
| UT Methodist Physicians | Memphis, TN | 4 |
| Lehigh Valley Hospital Inc. | Allentown, PA | 4 |
| Rush Medical Group | Chicago, IL | 4 |
| Temple University Hospital, Inc | Philadelphia, PA | 4 |
| Baystate Medical Practices, Inc. | Springfield, MA | 4 |
| The University of Alabama at Birmingham | Birmingham, AL | 4 |
| Integris Health, Inc. | Oklahoma City, OK | 4 |
| Cincinnati Children's Hospital Medical Center | Cincinnati, OH | 4 |
| Physician Services Corporation of Southern Illinois, Inc. | Mt. Vernon, IL | 4 |
| Faculty Physicians & Surgeons of LLUSM | Loma Linda, CA | 4 |
| Arizona Advanced Surgery | Mesa, AZ | 4 |
| IU Health Care Associates | Indianapolis, IN | 4 |
| University of Maryland College Park | College Park, MD | 4 |
| Charleston Area Medical Center, Inc. | Charleston, WV | 4 |
| State University Of New York At Buffalo | Buffalo, NY | 4 |
| MedStar Medical Group II, LLC | Columbia, MD | 4 |
| Swedish Health Services | Renton, WA | 4 |
| Children's National Medical Center | Washington, DC | 4 |
| Fayette Physician Network, Inc. | Uniontown, PA | 4 |
| North Mississippi Medical Center, Inc. | Tupelo, MS | 4 |
| TMH Physician Organization | Houston, TX | 4 |
| Rush University Medical Center | Chicago, IL | 4 |
| Children's Hospital Corporation | Boston, MA | 3 |
| Sutter Medical Group of the Redwoods, Inc. | Santa Rosa, CA | 3 |
| Augusta Orthopedic & Sports Medicine Specialists, P.C. | Augusta, GA | 3 |
| UT Regional One Physicians, Inc. | Memphis, TN | 3 |
| University Physicians of Brooklyn, Inc. | Brooklyn, NY | 3 |
| Neosho Memorial Regional Medical Center | Chanute, KS | 3 |
| Baptist Health Medical Group, Inc. | Louisville, KY | 3 |
| Pecos Valley of New Mexico, LLC | Carisbad, NM | 3 |
| Marshfield Clinic | Marshfield, WI | 3 |
| Capital Health System, Inc. | Trenton, NJ | 3 |
| Lafayette Health Ventures, Inc. | Lafayette, LA | 3 |
| Allina Health System | Minneapolis, MN | 3 |
| Mercy Hospital of Valley City | Valley City, ND | 3 |
| Clinch Valley Physicians Associates, LLC | Brentwood, TN | 3 |
| Gadsden Regional Physician Group Practice, LLC | Gadsden, AL | 3 |
| CLHG-Acadian LLC | Eunice, LA | 3 |
| The University of Virginia | Charlottesville, VA | 3 |
| Wentworth-Douglass Physician Corporation | Dover, NH | 3 |
| University Hospitals Cleveland Medical Center | Cleveland, OH | 3 |
| Pratt Otolaryngology “ Head and Neck Surgery Associates, Inc. (TMCPO) | Boston, MA | 3 |
| Punxsutawney Area Hospital, Inc. | Punxsutawney, PA | 3 |
| King's Daughters Medical Specialties, Inc. | Ashland, KY | 3 |
| University of Vermont Health Network Medical Group, Inc. | Burlington, VT | 3 |
| Baldwin Area Medical Center | Baldwin, WI | 3 |
| UT Medical Group, Inc. | Memphis, TN | 3 |
| Washington University | St. Louis, MO | 3 |
| Genesis Health System | Davenport, IA | 3 |
| Northeast Georgia Physicians Group, Inc. | Gainesville, GA | 3 |
| St. Bernard’s Hospital, Inc. | Jonesboro, AR | 3 |
| ECM Health Group, LLC | Florence, AL | 3 |
| University of New Mexico | Albuquerque, NM | 3 |
| MVHS, Inc. | Utica, NY | 3 |
| University of Louisville Physicians, Inc. | Louisville, KY | 3 |
| St. Vincent Medical Group | Little Rock, AR | 3 |
| Colorado West Healthcare System | Grand Junction, CO | 3 |
| Mat-Su Valley III, LLC | Palmer, AK | 3 |
| Ascension St. John Hospital | Detroit, MI | 3 |
| Northern Montana Health Care, Inc. | Havre, MT | 3 |
| Hackensack Meridian Health Medical Group - Specialty Care, P.C. | Hackensack, NJ | 3 |
| University of Minnesota | Minneapolis, MN | 3 |
| Sangre de Cristo Surgical Associates, PC | Pueblo, CO | 3 |
| Franciscan Missionaries of Our Lady Health System, Inc. | Baton Rouge, LA | 3 |
| Mercy Medical Center | Williston, ND | 3 |
| Valley Surgical Clinics, LTD | Phoenix, AZ | 3 |
| Orlando Health Medical Group, Inc. | Orlando, FL | 3 |
| TransMedics, Inc. | Andover, MA | 3 |
| Prisma Health Medical Group - Midlands | Greenville, SC | 3 |
| Intent Medical Group PLLC | Lake Forest, IL | 3 |
| University Of North Carolina At Chapel Hill | Chapel Hill, NC | 3 |
| Berkshire Medical Center | Pittsfield, MA | 3 |
| Olean General Hospital | Olean, NY | 3 |
| Kentucky Organ Donor Affiliates, Inc. | Louisville, KY | 3 |
| University of South Florida | Tampa, FL | 3 |
| South Broward Hospital District | Hollywood, FL | 3 |
| Temple Faculty Practice Plan, Inc | Philadelphia, PA | 3 |
| St. Barnabas Hospital | Bronx, NY | 3 |
| Indiana Regional Medical Center | Indiana, PA | 2 |
| Garnet Health Doctors, P.C. | Middletown, NY | 2 |
| Southeast Kansas Mental Health Center | Humboldt, KS | 2 |
| Saginaw Cooperative Hospitals | Saginaw, MI | 2 |
| Union Associated Physicians Clinic, LLC | Terre Haute, IN | 2 |
| MMG Specialists | Memphis, TN | 2 |
| Wake Forest University Health Sciences | Winston-Salem, NC | 2 |
| El Dorado Multispecialty Medical Group, Inc. | El Dorado Hills, CA | 2 |
| Paragonix Technologies, Inc. | Waltham, MA | 2 |
| XVIVO Services Inc. | Golden, CO | 2 |
| Banner Medical Group | Phoenix, AZ | 2 |
| TidalHealth, Inc. | Salisbury, MD | 2 |
| Geisinger Medical Center | Danville, PA | 2 |
| UMass Memorial Medical Group, Inc. | Worcester, MA | 2 |
| Wellstar Medical Group, LLC | Marietta, GA | 2 |
| Minneapolis VA Health Care System | Minneapolis, MN | 2 |
| Presbyterian Healthcare Services | Albuquerque, NM | 2 |
| Sunnyside Community Hospital Association | Sunnyside, WA | 2 |
| Piedmont Medical Care Corporation | Atlanta, GA | 2 |
| Memorial Professional Services | Toledo, OH | 2 |
| Valley Physician Service, PC | Paramus, NJ | 2 |
| The University Of Kansas Medical Center | Kansas City, KS | 2 |
| The Gould Medical Group, Inc. | Modesto, CA | 2 |
| Arkansas Health Group | Little Rock, AR | 2 |
| Kings Physician Services P.C. | Brooklyn, NY | 2 |
| St. Catherine Hospital | Garden City, KS | 2 |
| Centra Medical Group, LLC | Lynchburg, VA | 2 |
| Ocala Health Trauma, LLC | Ocala, FL | 2 |
| Legacy Clinics, LLC, Dba Legacy Medical Group | Portland, OR | 2 |
| Forrest General Hospital | Hattiesburg, MS | 2 |
| University of Virginia Health Services Foundation | Charlottesville, VA | 2 |
| Texas Specialty Physicians | Franklin, TN | 2 |
| St. Vincent Hospital | Santa Fe, NM | 2 |
| PeaceHealth | Vancouver, WA | 2 |
| Baptist Memorial Medical Group, Inc. | Memphis, TN | 2 |
| OhioHealth Physician Group, Inc. | Columbus, OH | 2 |
| Saints Medical Group, LLC | Oklahoma City, OK | 2 |
| Guthrie Lourdes Hospital | Binghamton, NY | 2 |
| Canton-Potsdam Hospital | Potsdam, NY | 2 |
| St. Mary's Physician Services, LLC | Russellville, AR | 2 |
| Athens Physicians Practice, LLC | Athens, TN | 2 |
| ThedaCare, Inc. | Neenah, WI | 2 |
| Providence Health & Services - Oregon | Portland, OR | 2 |
| Faith Regional Physician Services, LLC | Norfolk, NE | 2 |
| The Cardiovascular Center at Tufts Medical Center, Inc. (TMCPO) | Boston, MA | 2 |
| Self Regional Healthcare | Greenwood, SC | 2 |
| The University of Toledo | Toledo, OH | 2 |
| Phoebe Physician Group, Inc. | Albany, GA | 2 |
| MaineHealth | Portland, ME | 2 |
| Gift of Life Donor Program | Philadelphia, PA | 2 |
| Columbia Surgical Specialists, PS | Spokane, WA | 2 |
| Indiana University | Indianapolis, IN | 2 |
| Westchester Medical Center Advanced Physician Services, PC | Hawthorne, NY | 2 |
| Okanogan County Public Hospital District 4 | Tonasket, WA | 2 |
| Advanced Surgery & Wellness | Elgin, IL | 2 |
| Dean Health Systems, Inc. | Madison, WI | 2 |
| Florida Hospital Medical Group, Inc. | Maitland, FL | 2 |
| Excela Health Physician Practices, Inc. | Greensburg, PA | 2 |
| UPMC Pinnacle Hospitals | Pittsburgh, PA | 2 |
| Mercy Clinic Springfield Communities | Springfield, MO | 2 |
| Amory Surgery Clinic, PLLC | Amory, MS | 2 |
| University at Buffalo Surgeons, Inc. | Buffalo, NY | 2 |
| New York Spine and Brain Surgery, UFPC | Stony Brook, NY | 2 |
| University of Louisville | Louisville, KY | 2 |
| SurgOne, P.C. | Greenwood Village, CO | 2 |
| Cal Med Physicians and Surgeons, Inc. | Colton, CA | 2 |
| Louisiana Eye And Laser Center | Alexandria, LA | 2 |
| Catholic Health Initiatives-Iowa Corp. | Des Moines, IA | 2 |
| Christiana Care Health Services, Inc. | Wilmington, DE | 2 |
| Bullhead City Clinic Corporation | Bullhead City, AZ | 2 |
| Southern Illinois University Carbondale | Carbondale, IL | 2 |
| Carolinas Physicians Network, Inc. d/b/a Atrium Health Medical Group | Charlotte, NC | 2 |
| Missouri Delta Medical Center | Sikeston, MO | 2 |
| Inova Health Care Services | Fairfax, VA | 2 |
| Deaconess Illinois Specialty Clinic, Inc. | Evansville, IN | 2 |
| Old Dominion University | Norfolk, VA | 2 |
| Mid-Atlantic Permanente Medical Group | Rockville, MD | 2 |
| UT Southwestern Medical Center | Dallas, TX | 2 |
| Group Health Plan, Inc. | Bloomington, MN | 2 |
| Sanford Clinic | Sioux Falls, SD | 2 |
| Barnabas Health Medical Group, PC | West Orange, NJ | 2 |
| Providence Health & Services - Washington | Renton, WA | 2 |
| Yuma Regional Medical Center, an Arizona Non-Profit Corporation | Yuma, AZ | 2 |
| Mary Rutan Hospital | Bellefontaine, OH | 2 |
| Erie Retina Research, LLC | Erie, PA | 2 |
| Abdul Memon MD PLLC dba Cardiovascular Associates of Arizona LLC | Globe, AZ | 2 |
| IHC Health Services, Inc. | Murray, UT | 2 |
| University Of Florida | Gainesville, FL | 2 |
| University of Pittsburgh | Pittsburgh, PA | 2 |
| Poplar Bluff HMA Physician Management, LLC | Poplar Bluff, MO | 2 |
| New York City Health and Hospitals Corporation | New York, NY | 2 |
| Pinnacle Health Medical Services | Pittsburgh, PA | 2 |
| McLaren Medical Group | Flint, MI | 2 |
| Lester E. Cox Medical Centers | Springfield, MO | 2 |
| Trinity Hospital Twin City | Dennison, OH | 2 |
| William Beaumont Hospital | Southfield, MI | 2 |
| Wellmont Cardiology Services | Johnson City, TN | 2 |
| Versiti Wisconsin, Inc. | Milwaukee, WI | 2 |
| Albany Medical College | Albany, NY | 2 |
| Upper Midwest Organ Procurement Organization, Inc. | Minneapolis, MN | 2 |
| Brown Surgical Associates | Rumford, RI | 2 |
| Raleigh General Hospital, LLC | Beckley, WV | 2 |
| Yavapai Community Hospital Association | Prescott, AZ | 2 |
| Advantage Health/Saint Mary's Medical Group | Grand Rapids, MI | 2 |
| Sanford Clinic North | Fargo, ND | 2 |
| CVR Management, LLC | Greenbelt, MD | 2 |
| Arizona Advanced Surgery, LLC | Mesa, AZ | 2 |
| Texas Specialty Physicians | Ennis, TX | 2 |
| Ascension Medical Group Michigan | Saginaw, MI | 2 |
| Maimonides Medical Center | Brooklyn, NY | 2 |
| VA St Louis Health Care System | Saint Louis, MO | 2 |
| Mercy Medical Center - Clinton, Inc. | Clinton, IA | 2 |
| Iowa Donor Network | North Liberty, IA | 2 |
| Florida ENT Associates, Inc. | Miami Lakes, FL | 1 |
| Lifespan Physician Group Inc. | Providence, RI | 1 |
| Baxter County Regional Hospital, Inc. | Mountain Home, AR | 1 |
| Baycare Medical Group | Tampa, FL | 1 |
| Children's Hospital Pediatric Associates, Inc. | Boston, MA | 1 |
| Asante Physician Partners | Medford, OR | 1 |
| Permanent Hair Solutions Ohio LLC | Canton, OH | 1 |
| Lahey Clinic, Inc. | Burlington, MA | 1 |
| Innovis Health, LLC | Fargo, ND | 1 |
| Hillsdale Community Health Center | Hillsdale, MI | 1 |
| Eugene A. Bonaroti MD FACS LLC | Monroeville, PA | 1 |
| Zia Medical Group LLC | Clovis, NM | 1 |
| Renaissance Medical Foundation | Edinburg, TX | 1 |
| UConn Health Community Network Medical Group, Inc. | Farmington, CT | 1 |
| Barnes-Jewish Hospital | St. Louis, MO | 1 |
| The Aroostook Medical Center | Presque Isle, ME | 1 |
| Palmetto Retina Center, LLC | West Columbia, SC | 1 |
| NWTX Physician Network, PLLC | Amarillo, TX | 1 |
| Somerset Health Services, Inc. | Pittsburgh, PA | 1 |
| North Memorial Health Care | Robbinsdale, MN | 1 |
| CharterCARE Physicians, LLC | Providence, RI | 1 |
| Mercy Health Services-Iowa Corp. | Mason City, IA | 1 |
| Mercy Health Physicians North Specialty Care LLC | Toledo, OH | 1 |
| University of Maryland St. Joseph Medical Group, LLC | Towson, MD | 1 |