| UPMC Medical Education | Pittsburgh, PA | 53 |
| Dedicated Senior Medical Centers of Florida, LLC | Miami, FL | 29 |
| Apogee Medical Group, Delaware, Inc. | Dallas, TX | 27 |
| IU Health Care Associates | Indianapolis, IN | 26 |
| OSF Multi-Specialty Group | Peoria, IL | 26 |
| Alegent Creighton Clinic | Omaha, NE | 26 |
| USACS Medical Group Ltd. | Canton, OH | 26 |
| PeaceHealth | Vancouver, WA | 22 |
| Baycare Medical Group | Tampa, FL | 22 |
| Mercy Clinic Springfield Communities | Springfield, MO | 20 |
| Community Medical Centers, Inc. | Stockton, CA | 20 |
| United Health Services Hospitals, Inc. | Binghamton, NY | 19 |
| Mayo Clinic | Rochester, MN | 18 |
| The Permanente Medical Group, Inc. | Pleasanton, CA | 15 |
| Rochester General Hospital | Rochester, NY | 14 |
| SwedishAmerican Hospital | Rockford, IL | 14 |
| General Physician, P.C. | Buffalo, NY | 14 |
| Aurora Medical Group, Inc. | Milwaukee, WI | 13 |
| Apogee Medical Group, Pennsylvania, PC | Dallas, TX | 13 |
| Memorial Hospital | Owosso, MI | 12 |
| Presbyterian Healthcare Services | Albuquerque, NM | 12 |
| Physicians Network Medical Group, Inc. | Roseville, CA | 12 |
| Hudson Headwaters Health Network | Queensbury, NY | 12 |
| Hospitalist and Emergency Services of Texas, PA | Lafayette, LA | 12 |
| National Hospitalist Services, PC | Lafayette, LA | 12 |
| Apogee Medical Group, Indiana, PC | Dallas, TX | 12 |
| Altamed Health Services Corporation | Los Angeles, CA | 11 |
| Ochsner Clinic Foundation | New Orleans, LA | 11 |
| Chen Neighborhood Medical Centers of South Florida, LLC | Miami Gardens, FL | 10 |
| Prevea Clinic, Inc. | Green Bay, WI | 10 |
| University of Louisville Physicians, Inc. | Louisville, KY | 10 |
| Bayhealth Medical Center, Inc. | Dover, DE | 10 |
| Sanford Clinic | Sioux Falls, SD | 10 |
| Cleveland Clinic Foundation | Cleveland, OH | 9 |
| ACCESS Community Health Network | Chicago, IL | 9 |
| The Providence Community Health Centers, Inc. | Providence, RI | 9 |
| Family Healthcare Network | Visalia, CA | 9 |
| Franciscan Medical Group | Tacoma, WA | 9 |
| Wellspan Medical Group | York, PA | 9 |
| Apogee Medical Group, Georgia, Inc. | Dallas, TX | 9 |
| Golden Valley Health Centers | Merced, CA | 9 |
| McLaren Medical Group | Flint, MI | 9 |
| North Brevard County Hospital District | Titusville, FL | 8 |
| Piedmont Medical Care Corporation | Atlanta, GA | 8 |
| UPMC Community Medicine, Inc. | Pittsburgh, PA | 8 |
| Bronxcare Health System | Bronx, NY | 8 |
| Avera McKennan | Sioux Falls, SD | 8 |
| Clinica Sierra Vista | Bakersfield, CA | 8 |
| Altru Health System | Grand Forks, ND | 8 |
| District Medical Group, Inc | Phoenix, AZ | 8 |
| HSHS Medical Group, Inc. | Springfield, IL | 8 |
| St. Luke's Physician Group, Inc. | Bethlehem, PA | 8 |
| University of Pittsburgh Physicians | Pittsburgh, PA | 8 |
| Montefiore Medical Center | Bronx, NY | 8 |
| Sanford Clinic North | Fargo, ND | 8 |
| North East Medical Services | Daly City, CA | 7 |
| Henry Ford Health System | Detroit, MI | 7 |
| Upper Great Lakes Family Health Center | Laurium, MI | 7 |
| Catholic Health System, Inc. | Buffalo, NY | 7 |
| PMR Illinois Holding, LLC | Miami Gardens, FL | 7 |
| Hennepin Healthcare System, Inc. | Minneapolis, MN | 7 |
| Apogee Medical Group, North Carolina, PC | Dallas, TX | 7 |
| Apogee Medical Group, Ohio, Inc | Dallas, TX | 7 |
| St. Joseph's Hospital Health Center | Syracuse, NY | 7 |
| Hospital Physician Services Southeast, Professional Corporation | Knoxville, TN | 7 |
| Iowa Physicians Clinic Medical Foundation | West Des Moines, IA | 6 |
| Carle Health Care, Incorporated | Champaign, IL | 6 |
| Sanford Medical Center Fargo | Fargo, ND | 6 |
| Yuma Regional Medical Center, an Arizona Non-Profit Corporation | Yuma, AZ | 6 |
| Centennial Medical Group, P.A. | Columbia, MD | 6 |
| University of North Dakota | Grand Forks, ND | 6 |
| UMass Memorial Medical Group, Inc. | Worcester, MA | 6 |
| Coastal Medical Physicians, Inc. | Providence, RI | 6 |
| Clinicas del Camino Real | Camarillo, CA | 6 |
| Fairview Heights Medical Group, SC | St. Louis, MO | 6 |
| Ascension Medical Group - Southeast Wisconsin, Inc. | Glendale, WI | 6 |
| University of Arkansas for Medical Sciences | Little Rock, AR | 6 |
| Camarena Health | Madera, CA | 6 |
| Asante Physician Partners | Medford, OR | 6 |
| VCU Health System Authority | Richmond, VA | 6 |
| Maryland Medical First, P.A. | Parkville, MD | 6 |
| Providence Health & Services - Washington | Renton, WA | 6 |
| Keystone Rural Health Center | Chambersburg, PA | 6 |
| Apogee Medical Group, New York, PC | Dallas, TX | 6 |
| Prospect CharterCARE Physicians, LLC | Los Angeles, CA | 6 |
| Community Health Center, Inc. | Middletown, CT | 6 |
| PrimeCare Community Health, Inc. | Chicago, IL | 6 |
| Marshfield Clinic | Marshfield, WI | 6 |
| PMR Georgia Holding, LLC | Miami Gardens, FL | 5 |
| Humana Inc. | Louisville, KY | 5 |
| Bexar County Hospital District | San Antonio, TX | 5 |
| Elaine Ellis Center of Health | Washington, DC | 5 |
| San Benito Health Foundation | Hollister, CA | 5 |
| Geisinger Clinic | Danville, PA | 5 |
| Urban Health Plan, Inc. | Bronx, NY | 5 |
| Covenant Medical Center, Inc. | Waterloo, IA | 5 |
| The Metrohealth System | Cleveland, OH | 5 |
| Baptist Health Medical Group, Inc. | Louisville, KY | 5 |
| Concord Hospital - Laconia | Concord, NH | 5 |
| Signature Healthcare Medical Group, Inc. | Brockton, MA | 5 |
| Eskenazi Medical Group, Inc. | Indianapolis, IN | 5 |
| Faculty Physicians & Surgeons of LLUSM | Loma Linda, CA | 5 |
| Kapi'olani Medical Specialists | Honolulu, HI | 5 |
| University of Wisconsin System | Madison, WI | 5 |
| University of Wisconsin Medical Foundation | Middleton, WI | 5 |
| Southern Plains Medical Center, Inc | Chickasha, OK | 5 |
| Group Health Plan, Inc. | Bloomington, MN | 5 |
| Franciscan Alliance Inc. | Greenwood, IN | 5 |
| Apogee Medical Group, Inc | Dallas, TX | 5 |
| Mercy Clinic East Communities | Chesterfield, MO | 5 |
| Riverside Healthcare | Kankakee, IL | 5 |
| Banner Medical Group | Phoenix, AZ | 5 |
| Dean Health Systems, Inc. | Madison, WI | 5 |
| Central Maine Medical Center | Lewiston, ME | 5 |
| Cumberland Memorial Hospital, Inc. | Cumberland, WI | 5 |
| Indiana University Health Southern Indiana Physicians, LLC | Bloomington, IN | 5 |
| Regional Health Services, Inc. | Pittsburgh, PA | 4 |
| The Brooklyn Hospital Center | Brooklyn, NY | 4 |
| PMR Virginia Holding, LLC | Miami, FL | 4 |
| Med-Cure Internal Medicine, PLC | Goodyear, AZ | 4 |
| Dartmouth-Hitchcock Clinic | Lebanon, NH | 4 |
| Baystate Medical Practices, Inc. | Springfield, MA | 4 |
| Sparrow Carson Hospital | Lansing, MI | 4 |
| Mille Lacs Health System | Onamia, MN | 4 |
| Mercy Health Physicians - North, LLC | Toledo, OH | 4 |
| Lone Star Circle Of Care | Georgetown, TX | 4 |
| Indiana University | Indianapolis, IN | 4 |
| Clinica Msr Oscar A Romero | Los Angeles, CA | 4 |
| MyMichigan Medical Group | Midland, MI | 4 |
| Eastern Maine Medical Center | Bangor, ME | 4 |
| Mercy Health Services-Iowa Corp. | Mason City, IA | 4 |
| Donna Medical Clinic, P.A. | Donna, TX | 4 |
| Adams County Regional Medical Center | Seaman, OH | 4 |
| Family Health Centers of San Diego, Inc. | San Diego, CA | 4 |
| Mercy Health Physicians Springfield Primary Care LLC | Springfield, OH | 4 |
| St. Joseph Hospital of Nashua, N.H. | Nashua, NH | 4 |
| Community Health Centers Of The Central Coast, Inc. | Nipomo, CA | 4 |
| Omni Family Health | Bakersfield, CA | 4 |
| ProMedica Central Corporation of Michigan | Toledo, OH | 4 |
| Barnabas Health Medical Group, PC | West Orange, NJ | 4 |
| Providence Health & Services - Oregon | Portland, OR | 4 |
| Indiana University Health Arnett, Inc. | Lafayette, IN | 4 |
| Apogee Medical Group, Wisconsin, SC | Dallas, TX | 4 |
| H.M. Providers, Inc. | Fresno, CA | 4 |
| InPatient Consultants of Tennessee, P.C. | Knoxville, TN | 4 |
| Hospital Medicine Associates, LLC | Knoxville, TN | 4 |
| Apogee Medical Group, Virginia, PC | Dallas, TX | 4 |
| Mercy Clinic Oklahoma Communities, Inc. | Oklahoma City, OK | 4 |
| United Health Centers of the San Joaquin Valley | Fresno, CA | 4 |
| MedStar Medical Group II, LLC | Columbia, MD | 4 |
| Fayette Physician Network, Inc. | Uniontown, PA | 4 |
| The University of Iowa | Iowa City, IA | 4 |
| Guthrie Medical Group, P.C. | Sayre, PA | 4 |
| St. John's Well Child and Family Center, Inc. | Los Angeles, CA | 4 |
| Apogee Medical Group, Kentucky, PSC | Dallas, TX | 4 |
| Marana Health Center | Marana, AZ | 4 |
| HNI Physician Services of Texas, Inc. | Austin, TX | 4 |
| Yakima Valley Farm Workers Clinic | Toppenish, WA | 4 |
| Southern Illinois University Carbondale | Carbondale, IL | 4 |
| One Medical Group, Inc. | San Francisco, CA | 4 |
| North Penn Comprehensive Health Services | Mansfield, PA | 4 |
| Clinica de Salud del Valle de Salinas | Salinas, CA | 4 |
| St. Vincent Medical Group | Little Rock, AR | 4 |
| Southern Tier Community Health Center Network, Inc. | Olean, NY | 4 |
| Public Hospital District No 1 Of Mason County | Shelton, WA | 4 |
| Ascension St. Mary's Hospital | Saginaw, MI | 4 |
| Floyd Healthcare Management, Inc. | Rome, GA | 4 |
| Portage Physicians, P.C. | Portage, MI | 3 |
| Cayuga Medical Associates, P.C. | Ithaca, NY | 3 |
| Infusion and Clinical Services, Inc. | Bakersfield, CA | 3 |
| Norton Healthcare Inc. | Louisville, KY | 3 |
| Memorial Health System | Springfield, IL | 3 |
| Vidant Medical Group, LLC | Greenville, NC | 3 |
| University of Rochester | Rochester, NY | 3 |
| OhioHealth Physician Group, Inc. | Columbus, OH | 3 |
| Pinnacle Health Medical Services | Pittsburgh, PA | 3 |
| State University of New York, Upstate Medical University | Syracuse, NY | 3 |
| Deaconess Clinic, Inc. | Evansville, IN | 3 |
| The Gould Medical Group, Inc. | Modesto, CA | 3 |
| MRH Corp | Dover-Foxcroft, ME | 3 |
| Novant Medical Group | Charlotte, NC | 3 |
| Nor Lea Hospital District | Lovington, NM | 3 |
| Conway Regional Medical Center Inc | Conway, AR | 3 |
| Compass Health, Inc. | Clinton, MO | 3 |
| Great Lakes Physician Practice, P.C. | Pittsburgh, PA | 3 |
| The Hospital of Central Connecticut | New Britain, CT | 3 |
| Avera Marshall | Marshall, MN | 3 |
| Sparta Community Hospital District | Sparta, IL | 3 |
| Mercy Clinic Joplin, LLC | Joplin, MO | 3 |
| Columbus Ambulatory Healthcare Services, Inc. | Atlanta, GA | 3 |
| The Medical Center, Inc. | Atlanta, GA | 3 |
| Tyler Family Circle of Care | Tyler, TX | 3 |
| Mercy Health System Corporation | Janesville, WI | 3 |
| Lewis County Primary Care Center Inc | Marysville, KY | 3 |
| University Primary Care Practices Inc. | Cleveland, OH | 3 |
| Physician Groups, LC | St. Louis, MO | 3 |
| Avera St. Luke's Hospital | Aberdeen, SD | 3 |
| Kelsey-Seybold Medical Group, PLLC | Pearland, TX | 3 |
| Kadlec Regional Medical Center | Renton, WA | 3 |
| Peninsula Community Health Services | Bremerton, WA | 3 |
| Umpqua Community Health Center, Inc. | Roseburg, OR | 3 |
| Central Counties Health Centers, Inc., | Sprinfield, IL | 3 |
| Decatur Memorial Hospital | Decatur, IL | 3 |
| Valley Health System | Winchester, VA | 3 |
| Get Well Medical Center Management PLLC | Warren, MI | 3 |
| Apogee Medical Group, South Carolina, PC | Dallas, TX | 3 |
| La Porte Clinic Company, LLC | La Porte, IN | 3 |
| Allina Health System | Minneapolis, MN | 3 |
| Beacon Medical Group | South Bend, IN | 3 |
| Cambridge Public Health Commission | Malden, MA | 3 |
| Ascension Medical Group Michigan | Saginaw, MI | 3 |
| Bullhead City Clinic Corporation | Bullhead City, AZ | 3 |
| The Unity Hospital of Rochester | Rochester, NY | 3 |
| University of Utah | Salt Lake City, UT | 3 |
| The Insomnia and Sleep Institute of Arizona, LLC | Scottsdale, AZ | 3 |
| Franciscan Missionaries of Our Lady Health System, Inc. | Baton Rouge, LA | 3 |
| Southeastern Regional Medical Center | Lumberton, NC | 3 |
| William Beaumont Hospital | Southfield, MI | 3 |
| LSU Health Sciences Center - Shreveport | Shreveport, LA | 3 |
| Space Coast Health Centers, Inc. | Titusville, FL | 3 |
| The Doctors Clinic, A Professional Corporation | Silverdale, WA | 3 |
| Canton-Potsdam Hospital | Potsdam, NY | 3 |
| Adelante Healthcare, Inc. | Phoenix, AZ | 3 |
| Rural Health Medical Program, Inc. | Selma, AL | 3 |
| InterMed, P.A. | Portland, ME | 3 |
| Unity Health Care, Inc. | Washington, DC | 3 |
| Northwest Community Health Care Center | Buffalo, NY | 3 |
| Wake Forest University Baptist Medical Center | Winston Salem, NC | 3 |
| Jamaica Hospital Medical Center | Jamaica, NY | 3 |
| Wright Center for Graduate Medical Education | Scranton, PA | 3 |
| Physician Affiliate Group Of Ny, PC | New York, NY | 3 |
| Northern Arizona Healthcare Corporation | Flagstaff, AZ | 3 |
| The Memorial Hospital of William F and Gertrude F Jones Inc. | Wellsville, NY | 3 |
| D. Singh MD and Associates Inc. | Pittsburgh, PA | 3 |
| Covenant Medical Center, Inc. | Saginaw, MI | 3 |
| Community Health Center, Inc | Middletown, | 3 |
| Tri-Cities Community Health | Pasco, WA | 3 |
| Bridgton Hospital | Bridgton, ME | 3 |
| Spectrum Health Primary Care Partners | Grand Rapids, MI | 3 |
| Edward W. Sparrow Hospital Association | Lansing, MI | 3 |
| Karthikeya Devireddy, MD, Inc. | Los Banos, CA | 2 |
| William F. Ryan Community Health Center, Inc. | New York, NY | 2 |
| University of Vermont Health Network Medical Group, Inc. | Burlington, VT | 2 |
| Shasta Community Health Center | Redding, CA | 2 |
| Mercy Hospitalists, PLLC | Bloomfield Hills, MI | 2 |
| JWCH Institute Inc. | Commerce, CA | 2 |
| Dedicated Missouri Holding, LLC | Miami Gardens, FL | 2 |
| Intermountain Front Range, Inc. | Broomfield, CO | 2 |
| La Clinica de La Raza Inc. | Oakland, CA | 2 |
| Monongalia County General Hospital Company | Morgantown, WV | 2 |
| Downriver Community Services, Inc. | Algonac, MI | 2 |
| Anderson Medical Group, LLC | Maryville, IL | 2 |
| Dedicated Physicians Group of Tennessee, PLLC | Miami Gardens, FL | 2 |
| San Joaquin General Hospital | French Camp, CA | 2 |
| Saline Clinics, LLC | Benton, AR | 2 |
| Maine Coast Regional Health Facilities | Bangor, ME | 2 |
| First Call Centennial Academy, Inc. | Columbia, MD | 2 |
| Bronson Battle Creek Hospital | Battle Creek, MI | 2 |
| Mercy Clinic Fort Smith Communities | Fort Smith, AR | 2 |
| Glens Falls Hospital | Glens Falls, NY | 2 |
| Memorial Professional Services | Toledo, OH | 2 |
| Gadsden Regional Physician Group Practice, LLC | Gadsden, AL | 2 |
| Public Hospital District 1-A of Whitman County | Pullman, WA | 2 |
| Mid-State Health Center | Plymouth, NH | 2 |
| Waukegan Clinic Corporation | Waukegan, IL | 2 |
| Upstate Family & Preventive Medicine, Inc. | Syracuse, NY | 2 |
| Lewis County Community Health Services | Chehalis, WA | 2 |
| The Mary Imogene Bassett Hospital | Cooperstown, NY | 2 |
| AIDS Healthcare Foundation | Los Angeles, CA | 2 |
| Clinicas de Salud del Pueblo, Inc. | El Centro, CA | 2 |
| Foothills Community Health Care, Inc. | Clemson, SC | 2 |
| Edward M. Kennedy Community Health Center, Inc. | Worcester, MA | 2 |
| Prisma Health - University Medical Group | Greenville, SC | 2 |
| Cornerstone Family Healthcare | Cornwall, NY | 2 |
| Metro Medical Associates, LLC | Alpharetta, GA | 2 |
| Sea Mar Community Health Centers | Seattle, WA | 2 |
| Open Door Community Health Centers | Arcata, CA | 2 |
| NO/AIDS Task Force d/b/a Crescent Care | New Orleans, LA | 2 |
| Adams County Memorial Hospital | Decatur, IN | 2 |
| Bladen Healthcare, LLC | Elizabethtown, NC | 2 |
| Sanket Agarwal MD PC | Teaneck, NJ | 2 |
| Javier Eduardo Sosa Rodriguez, PC | The Woodlands, TX | 2 |
| HealthCare Partners Medical Group, P.C. | El Segundo, CA | 2 |
| Temple University Hospital, Inc | Philadelphia, PA | 2 |
| VMD Primary Providers of West Texas, PLLC | Chicago, IL | 2 |
| Oakwood Healthcare, Inc. | Grand Rapids, MI | 2 |
| South Georgia Medical Center Inc. | Valdosta, GA | 2 |
| Valley Health Team, Inc., | San Joaquin, CA | 2 |
| Michigan State University | East Lansing, MI | 2 |
| Geneva General Hospital | Geneva, NY | 2 |
| Ascension Medical Group ProMed | Kalamazoo, MI | 2 |
| Trinity Health | Minot, ND | 2 |
| Missouri Baptist Sullivan Hospital | Sullivan, MO | 2 |
| HealthPartners RC | Olivia, MN | 2 |
| LifeCare Medical Center | Roseau, MN | 2 |
| The Clifton Springs Sanitarium Company | Clifton Springs, NY | 2 |
| Salina Regional Health Center | Salina, KS | 2 |
| Mercy Professional Care, LLC | Canton, OH | 2 |
| Vital Health of Florida, Inc | Orange Park, FL | 2 |
| St. Mary's Regional Medical Center | Lewiston, ME | 2 |