| Aurora Medical Group, Inc. | Milwaukee | 3,813 |
| University of Wisconsin Medical Foundation Inc | Madison | 2,553 |
| The Medical College of Wisconsin Inc | Milwaukee | 2,115 |
| Froedtert Andthe Medical College of Wisconsin Community Physicians Inc | Wauwatosa | 1,285 |
| McHs Hospitals Inc | Marshfield | 1,197 |
| Dean Health Systems Inc | Sun Prairie | 1,159 |
| Aurora Advanced Healthcare, Inc. | Milwaukee | 1,124 |
| Gundersen Lutheran Medical Center Inc | La Crosse | 895 |
| Mayo Clinic Health System-Northwest Wisconsin Region Inc | Eau Claire | 802 |
| Mercy Health System Corporation | Janesville | 753 |
| Bellin Memorial Hospital Inc | Green Bay | 697 |
| Thedacare, Incorporated | Waupaca | 647 |
| St Vincent Hospital-Hospital Sisters-Third Order of St Francis | Green Bay | 603 |
| Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc. | Rhinelander | 574 |
| Ascension Medical Group-Southeast Wisconsin Inc | Brookfield | 545 |
| Mayo Clinic Health System-Southwest Wisconsin Region Inc | La Crosse | 534 |
| Prohealth Medical Group Inc | Mukwonago | 479 |
| Gundersen Clinic Ltd | Onalaska | 418 |
| Metro Infectious Disease Consultants LLC | Brookfield | 389 |
| Agnesian Healthcare Inc | Waupun | 388 |
| Lakeshore Medical Clinic LLC | Saint Francis | 379 |
| Cornerstone Counseling Services Inc | Madison | 353 |
| Columbia St Marys Hospital Milwaukee Inc | Milwaukee | 306 |
| Advantage Physical Therapy and Sports Rehab, LLC | Kenosha | 294 |
| Aspirus Medical Group, Inc. | Wausau | 268 |
| Ascension Medical Group-Fox Valley Wisconsin, Inc | Appleton | 259 |
| Riverside Radiology and Interventional Associates Inc | Mequon | 253 |
| Aspirus Wausau Hospital Inc | Wausau | 237 |
| Group Health Cooperative of South Central Wisconsin | Madison | 236 |
| Emergency Medicine Specialists SC | Franklin | 227 |
| Oconto Hospital and Medical Center Inc | Marinette | 222 |
| Baycare Clinic LLP | Green Bay | 200 |
| The Monroe Clinic, Inc. | Monroe | 199 |
| Childrens Specialty Group Inc | Milwaukee | 198 |
| Baycare Aurora LLC | Green Bay | 194 |
| Shoptikal LLC | Ashwaubenon | 189 |
| St Nicholas Hospital-Sisters of the Third Order of St Francis | Sheboygan | 178 |
| Aspirus Riverview Hospital and Clinics Inc | Wisconsin Rapids | 172 |
| Lakeview Medical Center Inc of Rice Lake | Rice Lake | 168 |
| Froedtert South Inc | Kenosha | 161 |
| Froedtert Manitowoc Medical Group, LLC | Sheboygan | 156 |
| Fort Healthcare Inc | Fort Atkinson | 155 |
| Paxxon Healthcare Services LLC | Waukesha | 153 |
| Fox Rehabilitation Services Wi LLC | West Bend | 148 |
| Divine Savior Healthcare Inc | Portage | 141 |
| Vituity-Wisconsin Anesthesia SC | Pleasant Prairie | 139 |
| Beloit Health System Inc | Beloit | 135 |
| Aspirus Stevens Point Hospital and Clinics, Inc. | Stevens Point | 134 |
| Preferred Podiatry Group PC | Waupun | 132 |
| Amery Regional Medical Center Inc | Amery | 124 |
| Sauk Prairie Healthcare Inc | Mazomanie | 124 |
| Oak Medical SC | Lodi | 123 |
| Meriter Hospital Inc | Madison | 122 |
| Aspirus Medford Hospital and Clinics Inc | Medford | 119 |
| Southwest Health Center Inc | Platteville | 114 |
| Emergency Care Consultants PA | River Falls | 113 |
| Orthopaedic Associates of Wisconsin SC | Pewaukee | 109 |
| University of Wisconsin System Non Payroll | Madison | 109 |
| Westfields Hospital Inc | New Richmond | 108 |
| Nystrom and Associates Counseling Wi SC | Eau Claire | 107 |
| Healthdrive Podiatry Group PC | Brookfield | 106 |
| Premier Radiology Wisconsin LLC | Mount Pleasant | 106 |
| The Lakes Community Health Center Inc | Iron River | 105 |
| Oakleaf Clinics Inc | Rice Lake | 103 |
| Upland Hills Health Inc | Dodgeville | 101 |
| St Marys Hospital of Superior | Hayward | 95 |
| Door County Memorial Hospital | Sturgeon Bay | 93 |
| Baldwin Area Medical Center Inc | Baldwin | 89 |
| Mile Bluff Medical Center Inc | Mauston | 87 |
| Langlade Hospital - Hotel Dieu of St Joseph of Antigo Wisconsin | Antigo | 86 |
| Association of Hospital Anesthesiologists SC | Berlin | 86 |
| Madison Medical Affiliates Inc | Milwaukee | 86 |
| 16th Street Community Health Center Inc. | Milwaukee | 85 |
| Racine Anesthesia Services LLC | Mount Pleasant | 82 |
| Radiology Associates of the Fox Valley SC | Sturgeon Bay | 81 |
| St Josephs Health Services Inc | Hillsboro | 81 |
| Memorial Medical Center Inc | Ashland | 79 |
| Vernon Memorial Healthcare Inc | La Farge | 77 |
| Aurora Health Care Metro, Inc. | Milwaukee | 75 |
| Tri-County Memorial Hospital Inc | Whitehall | 74 |
| Green Bay Anesthesia Assoc. SC | Green Bay | 73 |
| Prairie Ridge Health Inc | Columbus | 70 |
| Ladd Memorial Hospital | Osceola | 70 |
| Richland Hospital | Richland Center | 69 |
| Access Community Health Centers Inc | Madison | 68 |
| Hudson Physicians SC | Hudson | 67 |
| Watertown Physician Practices LLC | Watertown | 67 |
| Stoughton Hospital Association | Stoughton | 66 |
| Midwest Orthopedic Specialty Hospital, LLC | Oak Creek | 63 |
| Beaver Dam Community Hospitals Inc. | Beaver Dam | 62 |
| St Clare Memorial Hospital, Inc | Oconto Falls | 61 |
| Advanced Physical Therapy and Sports Medicine SC | Appleton | 61 |
| Orthopedic Surgeons of Wisconsin SC | Franklin | 61 |
| Black River Health Inc | Black River Falls | 60 |
| Reedsburg Area Medical Center Inc | Reedsburg | 59 |
| The Neuroscience Group of Northeast Wisconsin SC | Neenah | 58 |
| Madison Radiologists S C | Edgerton | 57 |
| Orthopaedic Centers of Wisconsin S C | Wausau | 57 |
| Central Wisconsin Anesthesiology | Wausau | 57 |
| Vituity-Wisconsin Em SC | Oconto Falls | 56 |