| Cleveland Clinic Foundation | Cleveland, OH | 31 |
| Vidant Medical Group, LLC | Greenville, NC | 28 |
| UPMC Medical Education | Pittsburgh, PA | 26 |
| PeaceHealth | Vancouver, WA | 23 |
| Hartford HealthCare Medical Group, Inc. | Wethersfield, CT | 21 |
| University of Pittsburgh Physicians | Pittsburgh, PA | 20 |
| Sanford Clinic | Sioux Falls, SD | 19 |
| University Of Kentucky | Lexington, KY | 19 |
| Medical University of South Carolina and Affiliates | Charleston, SC | 19 |
| The University Of Kansas Medical Center | Kansas City, KS | 16 |
| Ochsner Clinic Foundation | New Orleans, LA | 16 |
| Willis Knighton Medical Center, Inc. | Shreveport, LA | 16 |
| Mayo Clinic | Rochester, MN | 14 |
| OU Health Partners, Inc. | Oklahoma City, OK | 14 |
| Community Physicians Group, Inc. | Fresno, CA | 13 |
| West Virginia University Medical Corporation | Morgantown, WV | 13 |
| Franciscan Missionaries of Our Lady Health System, Inc. | Baton Rouge, LA | 11 |
| CarePoint, P.C. | Greenwood Village, CO | 11 |
| Christiana Care Health Services, Inc. | Wilmington, DE | 11 |
| Medical College of Wisconsin, Inc. | Milwaukee, WI | 11 |
| Father Flanagan's Boys' Home | Boys Town, NE | 11 |
| Emory University | Atlanta, GA | 10 |
| Allegheny Clinic | Pittsburgh, PA | 10 |
| OSF Multi-Specialty Group | Peoria, IL | 10 |
| UT Medical Group, Inc. | Memphis, TN | 10 |
| Brown Neurology | Providence, RI | 10 |
| Carolinas Physicians Network, Inc. d/b/a Atrium Health Medical Group | Charlotte, NC | 10 |
| Children's National Medical Center | Washington, DC | 9 |
| Allina Health System | Minneapolis, MN | 9 |
| University of Utah | Salt Lake City, UT | 9 |
| Novant Medical Group | Charlotte, NC | 9 |
| Texoma Neurology Associates, P.A. | Sherman, TX | 9 |
| The University of Kansas Physicians | Kansas City, KS | 9 |
| West Virginia University | Morgantown, WV | 9 |
| Marshfield Clinic | Marshfield, WI | 8 |
| Carilion Medical Center | Roanoke, VA | 8 |
| OhioHealth Physician Group, Inc. | Columbus, OH | 8 |
| University of Alabama Health Services Foundation, PC | Birmingham, AL | 8 |
| IU Health Care Associates | Indianapolis, IN | 8 |
| Spectrum Health Primary Care Partners | Grand Rapids, MI | 8 |
| University of Louisville | Louisville, KY | 7 |
| Trinity Health of New England Provider Network Organization, Inc. | Hartford, CT | 7 |
| Lifespan Physician Group Inc. | Providence, RI | 7 |
| Beth Israel Deaconess Medical Center, Inc. | Boston, MA | 7 |
| Stormont-Vail HealthCare | Topeka, KS | 7 |
| University of Colorado | Boulder, CO | 7 |
| Eastern Maine Medical Center | Bangor, ME | 7 |
| VCU Health System Authority | Richmond, VA | 7 |
| Cayuga Medical Associates, P.C. | Ithaca, NY | 7 |
| The University of Iowa | Iowa City, IA | 7 |
| St. Luke's Health System, Ltd. | Boise, ID | 7 |
| University Hospitals Medical Group, Inc. | Cleveland, OH | 7 |
| University of Rochester | Rochester, NY | 7 |
| Brigham and Women's Physicians Organization, Inc | Somerville, MA | 7 |
| University of Louisville Physicians, Inc. | Louisville, KY | 7 |
| University of Vermont Health Network Medical Group, Inc. | Burlington, VT | 7 |
| Medical Faculty Associates, Inc. | Washington, DC | 6 |
| MultiCare Health System | Tacoma, WA | 6 |
| The Children's Mercy Hospital | Kansas City, MO | 6 |
| Mercy Clinic Springfield Communities | Springfield, MO | 6 |
| Icahn School of Medicine at Mount Sinai | New York, NY | 6 |
| University of Minnesota Physicians | Minneapolis, MN | 6 |
| Bellin Memorial Hospital, Inc. | Green Bay, WI | 6 |
| Einstein Practice Plan, Inc. | Philadelphia, PA | 6 |
| Comanche County Hospital Authority | Lawton, OK | 6 |
| Hackensack Meridian Health Medical Group - Specialty Care, P.C. | Hackensack, NJ | 6 |
| Wellstar Medical Group, LLC | Marietta, GA | 6 |
| Alegent Creighton Clinic | Omaha, NE | 6 |
| Piedmont Medical Care Corporation | Atlanta, GA | 6 |
| Banner University Medical Group | Phoenix, AZ | 6 |
| Prisma Health Medical Group - Midlands | Greenville, SC | 6 |
| Massachusetts General Physicians Organization | Somerville, MA | 6 |
| Hometown Health Plan, Inc. | Reno, NV | 6 |
| Saint Francis Health System | Tulsa, OK | 6 |
| The Leland Stanford, Jr University | Stanford, CA | 5 |
| Hospital Medicine Services of FL, LLC | Nashville, TN | 5 |
| Union Associated Physicians Clinic, LLC | Terre Haute, IN | 5 |
| The Cooper Health System | Camden, NJ | 5 |
| St. Vincent Medical Group | Little Rock, AR | 5 |
| Prisma Health - University Medical Group | Greenville, SC | 5 |
| University of Washington | Seattle, WA | 5 |
| North Mississippi Medical Center, Inc. | Tupelo, MS | 5 |
| Bayhealth Medical Center, Inc. | Dover, DE | 5 |
| University of Pittsburgh | Pittsburgh, PA | 5 |
| Avera McKennan | Sioux Falls, SD | 5 |
| SSM Health Care Group | St. Louis, MO | 5 |
| Henry Ford Health System | Detroit, MI | 5 |
| Virtual Neurology LLC | Fort Myers, FL | 5 |
| Indiana University Health Arnett, Inc. | Lafayette, IN | 5 |
| Jeffrey Farkas, M.D., LLC | Bergenfield, NJ | 5 |
| Temple University Hospital, Inc | Philadelphia, PA | 5 |
| The Metrohealth System | Cleveland, OH | 4 |
| Mosaic Health System | St. Joseph, MO | 4 |
| United Health Services Hospitals, Inc. | Binghamton, NY | 4 |
| Spartanburg Regional Health Services District, Inc. d/b/a Spartanburg Regional Healthcare System | Spartanburg, SC | 4 |
| University Physician Group | Detroit, MI | 4 |
| University of Arkansas for Medical Sciences | Little Rock, AR | 4 |
| Children's Hospital Neurology Foundation, Inc | Boston, MA | 4 |
| Ammar PLLC, Nevada Professional Limited Liability Practice d/b/a/ Stroke and Neurology Specialists | Henderson, NV | 4 |
| Iowa City VA Health Care System | Iowa City, IA | 4 |
| Cincinnati Children's Hospital Medical Center | Cincinnati, OH | 4 |
| Arkansas Health Group | Little Rock, AR | 4 |
| Erie County Medical Center Corporation | Buffalo, NY | 4 |
| MedStar Medical Group II, LLC | Columbia, MD | 4 |
| The Nemours Foundation - Nemours Children's Health | Jacksonville, FL | 4 |
| Covenant Medical Group, Inc. | Knoxville, TN | 4 |
| Billings Clinic | Billings, MT | 4 |
| Memorial Health Partners Foundation, Inc. | Chattanooga, TN | 4 |
| University Of Miami | Miami, FL | 4 |
| Geisinger Clinic | Danville, PA | 4 |
| Aurora Medical Group, Inc. | Milwaukee, WI | 4 |
| Wentworth-Douglass Physician Corporation | Dover, NH | 4 |
| Iowa Physicians Clinic Medical Foundation | West Des Moines, IA | 4 |
| Neuro-Hospitalist of Clear Lake, PLLC | Houston, TX | 4 |
| University of Illinois | Urbana, IL | 4 |
| Renaissance Medical Foundation | Edinburg, TX | 4 |
| The Children's Hospital of Philadelphia | Philadelphia, PA | 3 |
| Centra Medical Group, LLC | Lynchburg, VA | 3 |
| Burlington Neurology & Sleep Clinic, P.L.C. | West Burlington, IA | 3 |
| University of South Florida | Tampa, FL | 3 |
| Michigan State University | East Lansing, MI | 3 |
| Carle Health Care, Incorporated | Champaign, IL | 3 |
| Bryan Physician Network | Lincoln, NE | 3 |
| Lester E. Cox Medical Centers | Springfield, MO | 3 |
| Augusta Medical Group | Fishersville, VA | 3 |
| Revive Global, PLLC | El Paso, TX | 3 |
| Mississippi Baptist Medical Center | Jackson, MS | 3 |
| Yale University | New Haven, CT | 3 |
| Bon Secours Medical Group Greenville Specialty Care LLC | Greenville, SC | 3 |
| Kennedy Krieger Institute | Baltimore, MD | 3 |
| Centennial Neuroscience, LLC | Nashville, TN | 3 |
| UT Le Bonheur Pediatric Specialists, Inc | Memphis, TN | 3 |
| Pioneer NeuroHealth, LLC | Temple Terrace, FL | 3 |
| The Duluth Clinic, Ltd. | Duluth, MN | 3 |
| UPMC Altoona Regional Health Services, Inc. | Pittsburgh, PA | 3 |
| MVHS, Inc. | Utica, NY | 3 |
| St. Francis Physician Practices, LLC | Columbus, GA | 3 |
| The Permanente Medical Group, Inc. | Pleasanton, CA | 3 |
| St. Mary's Medical Group, Inc. | Athens, GA | 3 |
| The Curators of the University of Missouri | Columbia, MO | 3 |
| Rutgers, The State University of New Jersey | Newark, NJ | 3 |
| Neurology Associates of Kansas, LLC | Wichita, KS | 3 |
| Providence Health & Services - Washington | Renton, WA | 3 |
| Lake Cumberland Physician Practices, LLC | Somerset, KY | 3 |
| Norton Healthcare Inc. | Louisville, KY | 3 |
| Gillette Children's Specialty Healthcare | Saint Paul, MN | 3 |
| Neuro Care Of Louisiana, LLC | Covington, LA | 3 |
| St. Luke's Physician Group, Inc. | Bethlehem, PA | 3 |
| HSA Louisiana Physician Group, Inc. | West Monroe, LA | 3 |
| Guthrie Medical Group, P.C. | Sayre, PA | 3 |
| Summa Physicians, Inc. | Akron, OH | 3 |
| Faith Regional Physician Services, LLC | Norfolk, NE | 3 |
| Southern Illinois Medical Services | Carbondale, IL | 3 |
| Mercy Clinic East Communities | Chesterfield, MO | 3 |
| Emory & Children's Pediatric Institute, Inc. | Atlanta, GA | 3 |
| MedStar Medical Group II, LLC | Columbia, MD | 3 |
| Metropolitan Hospital | Wyoming, MI | 2 |
| Dignity Health | Phoenix, AZ | 2 |
| UNMC Physicians | Omaha, NE | 2 |
| Salem Health | Salem, OR | 2 |
| IHC Health Services, Inc. | Murray, UT | 2 |
| University of New Mexico | Albuquerque, NM | 2 |
| Wellstar Medical Group, LLC | Augusta, GA | 2 |
| The Unity Hospital of Rochester | Rochester, NY | 2 |
| Concord Hospital | Concord, NH | 2 |
| MaineHealth | Portland, ME | 2 |
| Riverside Healthcare | Kankakee, IL | 2 |
| Mercy Health Physicians Youngstown Specialty Care LLC | North Lima, OH | 2 |
| Trustees Of The University Of Pennsylvania | Philadelphia, PA | 2 |
| Conway Hospital, Inc. | Conway, SC | 2 |
| University of Connecticut Health Center | Farmington, CT | 2 |
| Mercy Health System Corporation | Janesville, WI | 2 |
| Comprehensive Neurology Services, P.A. | Hagerstown, MD | 2 |
| St. Peter's Health Partners Medical Associates, PC | Albany, NY | 2 |
| Woodland Clinic Medical Group | Woodland, CA | 2 |
| Hennepin Healthcare System, Inc. | Minneapolis, MN | 2 |
| New York Society for Relief of Ruptured & Crippled | New York, NY | 2 |
| CentraCare Clinic | St. Cloud, MN | 2 |
| University of Michigan | Ann Arbor, MI | 2 |
| Holyoke Medical Center, Inc | Holyoke, MA | 2 |
| Littleton Hospital Association, Inc. | Littleton, NH | 2 |
| Oregon Health & Science University | Portland, OR | 2 |
| Geisinger Wyoming Valley Medical Center | Danville, PA | 2 |
| Hh Health System - Morgan, LLC | Decatur, AL | 2 |
| Sentara Medical Group | Virginia Beach, VA | 2 |
| United Neuroscience, Inc. | Bakersfield, CA | 2 |
| Johns Hopkins University | Baltimore, MD | 2 |
| Deaconess Clinic, Inc. | Evansville, IN | 2 |
| Orlando Health Medical Group, Inc. | Orlando, FL | 2 |
| Catholic Health System, Inc. | Buffalo, NY | 2 |
| Riverhills Healthcare, Inc. d/b/a Riverhills Neuroscience | Cincinnati, OH | 2 |
| University Health System, Inc. | Knoxville, TN | 2 |
| UNC Physicians Network, LLC | Morrisville, NC | 2 |
| Prevea Clinic, Inc. | Green Bay, WI | 2 |
| University of Virginia Health Services Foundation | Charlottesville, VA | 2 |
| Baptist Health Medical Group, Inc. | Louisville, KY | 2 |
| Valley Children'S Specialty Medical Group, Inc. | Madera, CA | 2 |
| PCRMC Medical Group, Inc. | Rolla, MO | 2 |
| Indiana University | Indianapolis, IN | 2 |
| Charleston Area Medical Center, Inc. | Charleston, WV | 2 |
| Optum Medical Group II (Rhodes), P.C. | Las Vegas, NV | 2 |
| Rush Medical Group | Chicago, IL | 2 |
| Dean Health Systems, Inc. | Madison, WI | 2 |
| King's Daughters Medical Specialties, Inc. | Ashland, KY | 2 |
| Mercy Health Physicians Cincinnati Specialty Care, LLC | Cincinnati, OH | 2 |
| Hamilton Medical Center Inc. | Dalton, GA | 2 |
| Saint Francis Medical Partners, LLC | Cape Girardeau, MO | 2 |
| Cleveland Clinic Florida | Weston, FL | 2 |
| University of Texas Medical Branch | Galveston, TX | 2 |
| Banner Medical Group | Phoenix, AZ | 2 |
| St. Agnes Healthcare, Inc. | Baltimore, MD | 2 |
| The Ohio State University | Columbus, OH | 2 |
| Pinnacle Health Medical Services | Pittsburgh, PA | 2 |
| University of Colorado Health | Colorado Springs, CO | 2 |
| Kadlec Regional Medical Center | Renton, WA | 2 |
| Tanner Medical Center, Inc. | Carrollton, GA | 2 |
| Hawaii Pacific Neuroscience | Honolulu, HI | 2 |
| Brain & Spine LLC | Panama City, FL | 2 |
| AU Medical Associates, Inc. | Augusta, GA | 2 |
| International Medical Clinic, PLLC | Bloomfield Hills, MI | 2 |
| Munson Medical Center | Traverse City, MI | 2 |
| University Primary Care Practices Inc. | Cleveland, OH | 2 |
| DLP Conemaugh Physician Practices, LLC | Johnstown, PA | 2 |
| MHM Support Services | Chesterfield, MO | 2 |
| The University Of Tennessee | Knoxville, TN | 2 |
| Masoud Khorsand-Sahbaie, M.D., P.A. | Roswell, NM | 2 |
| LSU Health Sciences Center - Shreveport | Shreveport, LA | 2 |
| ProMedica Central Physicians | Toledo, OH | 2 |
| Lahey Clinic, Inc. | Burlington, MA | 2 |
| Advantage Health/Saint Mary's Medical Group | Grand Rapids, MI | 2 |
| Harvard Medical Faculty Physicians At Beth Israel Deaconess Medical Center | Woburn, MA | 2 |
| Erlanger Health | Chattanooga, TN | 2 |
| Phoenix Children's Hospital | Phoenix, AZ | 2 |
| University of Oklahoma | Norman, OK | 2 |
| Steward Medical Group, Inc. | Dallas, TX | 2 |
| The Moses H. Cone Memorial Hospital Operating Corporation, Inc. | Greensboro, NC | 2 |
| Kapi'olani Medical Specialists | Honolulu, HI | 2 |
| University Neurology, Inc. | Buffalo, NY | 2 |
| Cook County Health | Chicago, IL | 2 |
| The Health Care Authority Of The City Of Huntsville | Huntsville, AL | 2 |
| Northwest Hospital Center, Inc. | Randallstown, MD | 2 |
| Affinity Physician Services, LLC | Birmingham, AL | 1 |
| The NeuroMedical Center Clinic | Baton Rouge, LA | 1 |
| Seton Family of Doctors | Austin, TX | 1 |
| State University Of New York At Buffalo | Buffalo, NY | 1 |
| Rockford Health Physicians | Rockford, IL | 1 |
| Knight Neurology LLC | Rockledge, FL | 1 |
| Neurology Care PLLC | Waxahachie, TX | 1 |
| Neurology Medicine Services of FL, LLC | Nashville, TN | 1 |
| Boone Physician Services, LLC | Columbia, MO | 1 |
| Lehigh Valley Hospital Inc. | Allentown, PA | 1 |
| Barnes-Jewish Hospital | St. Louis, MO | 1 |
| Hospital Service District Number Two of Vermilion Parish | Abbeville, LA | 1 |
| UT Southwestern Medical Center | Dallas, TX | 1 |
| Graves Gilbert Clinic, PLLC | Bowling Green, KY | 1 |
| CTH Physicians Clinic | Carson City, NV | 1 |
| Texas Tech University | Lubbock, TX | 1 |
| Columbus Ambulatory Healthcare Services, Inc. | Atlanta, GA | 1 |
| Covenant Medical Group | Renton, WA | 1 |
| Mount Sinai South Nassau | New York, NY | 1 |
| UMass Memorial Medical Group, Inc. | Worcester, MA | 1 |
| Northeast Georgia Physicians Group, Inc. | Gainesville, GA | 1 |
| The Methodist Hospitals, Inc. | Gary, IN | 1 |
| Northwestern Medical Faculty Foundation | Chicago, IL | 1 |
| Franciscan Medical Group | Tacoma, WA | 1 |
| Beacon Medical Group | South Bend, IN | 1 |
| Washington University | St. Louis, MO | 1 |
| Minnesota Epilepsy Group, PA | Roseville, MN | 1 |
| Memorial Hermann Health System | Houston, TX | 1 |
| Columbia University | New York, NY | 1 |
| Physician Services Corporation of Southern Illinois, Inc. | Mt. Vernon, IL | 1 |
| Community Care Network, Inc. | Munster, IN | 1 |
| CHRISTUS Trinity Clinic | Irving, TX | 1 |
| Riverside Physician Services, Inc. (D/B/A Riverside Medical Group) | Newport News, VA | 1 |
| Tarrant Neurology Consultants, P.A. | Fort Worth, TX | 1 |
| Summit Medical Group | Erlanger, KY | 1 |
| HCA Management Services LP | Nashville, TN | 1 |
| USA HealthCare Management, LLC | Mobile, AL | 1 |
| Premier Psychiatric Group LLC | Lincoln, NE | 1 |
| TriHealth H, LLC | Cincinnati, OH | 1 |
| MMG Specialists | Memphis, TN | 1 |
| Wake Forest University Baptist Medical Center | Winston Salem, NC | 1 |
| West Tennessee Healthcare | Jackson, TN | 1 |
| Florida Hospital Healthcare Partners, Inc. | Ormond Beach, FL | 1 |
| Northwestern University | Evanston, IL | 1 |
| Wellspan Medical Group | York, PA | 1 |
| Bronxcare Health System | Bronx, NY | 1 |
| North Alabama Neuroservices, LLC | Brentwood, TN | 1 |
| Lafayette Health Ventures, Inc. | Lafayette, LA | 1 |
| Asante Physician Partners | Medford, OR | 1 |
| Southeastern Hospitalist Services, PC | Knoxville, TN | 1 |
| The Insomnia and Sleep Institute of Arizona, LLC | Scottsdale, AZ | 1 |
| Mercy Health Northwest Arkansas Communities | Rogers, AR | 1 |
| University Health Physicians | Kansas City, MO | 1 |
| DLP Conemaugh Memorial Medical Center, LLC | Johnstown, PA | 1 |
| AZ Integrated Neuro Spine and Pain | Sun City, AZ | 1 |
| Dayton Children'S Specialty Physicians, Inc. | Dayton, OH | 1 |
| Baha Al-Deen Abuesheh, M.D., P.C. | Ardmore, OK | 1 |
| Olean General Hospital | Olean, NY | 1 |
| AnMed Health | Anderson, SC | 1 |