| U S Anesthesia Partners Of Texas, PA | Houston | TX | 1116 |
| North Shore - Lij Anesthesiology, PC | New Hyde Park | NY | 616 |
| Cep America - Anesthesia PC | Fremont | CA | 564 |
| Southern California Permanente Medical Group | Los Angeles | CA | 447 |
| New York University | New York | NY | 443 |
| Permanente Medical Group INC | Santa Clara | CA | 398 |
| Sheridan Healthcorp INC | Plantation | FL | 347 |
| New Jersey Healthcare Specialists PC | Hackensack | NJ | 307 |
| Us Anesthesia Partners Of Florida INC | Orlando | FL | 305 |
| Northwestern Medical Faculty Foundation | Chicago | IL | 302 |
| Cleveland Clinic | Cleveland | OH | 266 |
| Rwjbh Observation Associates LLC | Livingston | NJ | 254 |
| Mountain West Anesthesia LLC | Provo | UT | 249 |
| Cedars-Sinai Medical Care Foundation | West Hollywood | CA | 240 |
| North American Partners In Anesthesia LLP | White Plains | NY | 238 |
| Anesthesia Service Medical Group | San Diego | CA | 234 |
| Valley Anesthesiology Consultants INC | Phoenix | AZ | 232 |
| Mayo Clinic | Rochester | MN | 230 |
| Advocate Health And Hospitals Corporation | Oak Lawn | IL | 228 |
| Iu Health Medical Group LLC | Indianapolis | IN | 222 |
| University Of Pittsburgh Physicians | Pittsburgh | PA | 219 |
| Anesthesia Company LLC | Prince Frederick | MD | 213 |
| Emergenchealth PLLC | San Antonio | TX | 210 |
| U Of R Anesthesiology Group | Rochester | NY | 209 |
| Stanford Health Care | Stanford | CA | 209 |
| Oregon Anesthesiology Group PC | Portland | OR | 208 |
| Us Anesthesia Partners Of Colorado INC | Denver | CO | 207 |
| Brigham And Womens Physicians Organization INC | Boston | MA | 201 |
| Aurora Medical Group, INC. | Milwaukee | WI | 198 |
| Medstar Medical Group Ii LLC | Washington | DC | 196 |
| University Anesthesia Medical Group | San Francisco | CA | 196 |
| Metropolitan Anesthesia Network LLP | Coon Rapids | MN | 195 |
| Vanderbilt University Medical Center | Nashville | TN | 195 |
| University Of Miami | Miami | FL | 193 |
| Fpa Hospital Based | New York | NY | 191 |
| Spectrum Health Primary Care Partners | Grand Rapids | MI | 190 |
| Anesthesia Dynamics LLC | Lecanto | FL | 190 |
| Regents Of The University Of California | Santa Monica | CA | 185 |
| Johns Hopkins University | Baltimore | MD | 184 |
| Massachusetts General Physicians Organization INC | Boston | MA | 183 |
| Integrated Anesthesia Associates LLC | Hartford | CT | 182 |
| The Association Of University Physicians | Seattle | WA | 179 |
| Allied Anesthesia Medical Group INC | Orange | CA | 178 |
| American Anesthesiology Of Virginia PC | Leesburg | VA | 176 |
| Smg Anesthesia Specialists LLC | Norfolk | VA | 170 |
| Austin Anesthesiology Group PLLC | Austin | TX | 168 |
| Endeavor Health Medical Group | Evanston | IL | 166 |
| University Of Texas Southwestern Medical Center At Dallas | Dallas | TX | 166 |
| Chs Anesthesia Services Group INC | Charlotte | NC | 164 |
| Yale University | New Haven | CT | 163 |
| Weill Medical College Of Cornell | New York | NY | 163 |
| Florida Clinical Practice Association INC | Gainesville | FL | 158 |
| Osu Observation Medicine, LLC | Columbus | OH | 158 |
| Prisma Health University Medical Group | Greenville | SC | 152 |
| Duke Health Integrated Practice INC | Durham | NC | 151 |
| Physicians Anesthesia Service PLLC | Seattle | WA | 151 |
| Regents Of The University Of Michigan | Ann Arbor | MI | 150 |
| Northstar Anesthesia Of Illinois, LLC | Chicago Heights | IL | 149 |
| Regents Of The University Of | Orange | CA | 148 |
| East Carolina Anesthesia Associates PLLC | Greenville | NC | 147 |
| University Of Alabama Health Services Foundation, PC | Birmingham | AL | 146 |
| Baycare Medical Group, INC. | Clearwater | FL | 144 |
| University Of North Carolina At Chapel Hill | Chapel Hill | NC | 143 |
| North Atlanta Anesthesia Professionals, LLC | Atlanta | GA | 143 |
| Montefiore Medical Center | Bronx | NY | 143 |
| The Emory Clinic INC | Atlanta | GA | 143 |
| Washington University | Saint Louis | MO | 142 |
| United Anesthesia Services PC | Wayne | PA | 142 |
| Providence Anesthesiology Associates PA | Charlotte | NC | 141 |
| Parkway Anesthesia Associates LLC | North Bergen | NJ | 140 |
| Piedmont Anesthesia LLC | Stockbridge | GA | 138 |
| Sunshine State Anesthesia Partners LLC | St Petersburg | FL | 137 |
| Northstar Anesthesia Of Virginia, LLC | Alexandria | VA | 136 |
| First Colonies Anesthesia Associates, LLC | Rockville | MD | 135 |
| Orthomed Staffing LLC | Plano | TX | 134 |
| University Of Penn-Medical Group | Philadelphia | PA | 130 |
| University Of Utah Adult Services | Salt Lake City | UT | 129 |
| Ut Physicians | Houston | TX | 127 |
| Franciscan Medical Group | Tacoma | WA | 125 |
| The Medical College Of Wisconsin INC | Milwaukee | WI | 123 |
| Regents Of The Univ Of Ca | Sacramento | CA | 123 |
| Regents Of The University Of California | San Diego | CA | 122 |
| North American Partners In Anesthesia Illinois LLC | Berwyn | IL | 121 |
| Spectrum Healthcare Partners PA | Portland | ME | 120 |
| University Physicians Incorporated | Aurora | CO | 119 |
| Mercy Medical Center | Cedar Rapids | IA | 119 |
| Geisinger Clinic | Danville | PA | 118 |
| Northstar Anesthesia Of Michigan Iii PLLC | Royal Oak | MI | 117 |
| Poudre Valley Medical Group LLC | Colorado Springs | CO | 117 |
| Ochsner Clinic LLC | New Orleans | LA | 116 |
| University Anesthesiology Associates LLC | Portland | OR | 116 |
| Scott And White Clinic | Temple | TX | 114 |
| University Of Chicago | Chicago | IL | 114 |
| Independent Physicians Network PLLC | Dallas | TX | 113 |
| Fielden,Hanson,Isaacs,Miyada,Robison,Yeh LTD | Las Vegas | NV | 113 |
| Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr INC | Boston | MA | 111 |
| Wake Forest University Health Sciences | Winston Salem | NC | 111 |
| Wellstar Medical Group LLC | Marietta | GA | 110 |
| Anesthesia Care Associates Medical Group, INC | San Francisco | CA | 108 |
| Dartmouth-Hitchcock Clinic | Lebanon | NH | 108 |
| State University Of Iowa | Iowa City | IA | 108 |
| Metropolitan Anesthesia Consultants, LLP | Dallas | TX | 108 |
| Anesthesia Medical Group, P.C. | Nashville | TN | 107 |
| Banner-University Medical Group | Tucson | AZ | 106 |
| Central Anesthesia Service Exchange Medical Group INC | Sacramento | CA | 106 |
| University Hospitals Medical Group INC | Cleveland | OH | 105 |
| Vituity-Wisconsin Anesthesia SC | Pleasant Prairie | WI | 105 |
| Kaiser Foundation Health Plan Of The Mid Atlantic States, INC | Largo | MD | 105 |
| The Milton S Hershey Medical Center Physicians Group | Hershey | PA | 105 |
| Umass Memorial Medical Group INC | Worcester | MA | 104 |
| Mak Anesthesia Holdings, LLC | Austell | GA | 103 |
| Anesthesia Group Practice INC | Montgomery | OH | 102 |
| Professional Anesthesia Services Of Kentucky PLLC | Louisville | KY | 102 |
| Albany Medical College | Albany | NY | 101 |
| Anesthesia Associates Of Morristown PA | Morristown | NJ | 99 |
| G2 Anesthesia PC | San Jose | CA | 99 |
| Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is | Newburyport | MA | 99 |
| Kansas University Physicians INC | Kansas City | KS | 99 |
| Usc Care Medical Group INC | Los Angeles | CA | 99 |
| Community Physicians Of Indiana INC | Indianapolis | IN | 98 |
| Trustees Of Columbia University In The City Of New York | New York | NY | 98 |
| Midwest Anesthesia Partners LLC | Chicago | IL | 98 |
| University Anesthesia Providers LLC | Minneapolis | MN | 98 |
| Allegheny Clinic | Pittsburgh | PA | 97 |
| Physicians Referral Service | Houston | TX | 96 |
| Anesthesia Associates Of Ann Arbor PLLC | Ypsilanti | MI | 96 |
| Chi Health Clinic Physician Enterprise-Anesthesia LLC | Omaha | NE | 95 |
| University Of Virginia Physicians Group | Charlottesville | VA | 94 |
| Anesthesiologists Of Greater Orlando INC | Orlando | FL | 93 |
| Northside Anesthesia Services, LLC | Indianapolis | IN | 93 |
| Southeast Anesthesiology Consultants PLLC | Wilmington | NC | 92 |
| Hackensack Meridian Health Medical Group - Specialty Care PC | Neptune | NJ | 91 |
| Medstream Anesthesia PLLC | Hendersonville | NC | 91 |
| Northstar Anesthesia Iii PA | Fort Worth | TX | 91 |
| Faculty Physicians And Surgeons Of Llusm | Loma Linda | CA | 91 |
| Westchester Medical Center Advanced Physician Services PC | Valhalla | NY | 90 |
| Banner Hospital Based Physicians Arizona LLC | Mesa | AZ | 90 |
| University Of Wisconsin Medical Foundation INC | Madison | WI | 89 |
| Sutter Bay Medical Foundation | Palo Alto | CA | 89 |
| Anesthesia Physician Solutions Of South Florida, LLC | Miami | FL | 89 |
| Pacific Anesthesia PC | Tacoma | WA | 89 |
| Wellspan Medical Group | York | PA | 88 |
| Henry Ford Health System | Detroit | MI | 87 |
| Northwest Anesthesia Physicians PC | Springfield | OR | 87 |
| Western Anesthesiology Associates INC | Saint Louis | MO | 87 |
| North American Partners In Anesthesia, Pennsylvania , LLC | East Stoudsburg | PA | 86 |
| Pacific Valley Medical Group | Pasadena | CA | 86 |
| Matrix Anesthesia, Ps | Bellevue | WA | 86 |
| University Medical Associates Of The Medical University Of South Carol | Charleston | SC | 86 |
| Newport Harbor Anesthesia Consultants Medical Group INC | Newport Beach | CA | 85 |
| North American Partners In Anesthesia Of New Jersey LLC | Paterson | NJ | 85 |
| Billings Clinic | Billings | MT | 85 |
| University Of Cincinnati Physicians Company LLC | Cincinnati | OH | 85 |
| Virtua Medical Group, PA | Voorhees | NJ | 84 |
| University Primary Care Practices INC | Beachwood | OH | 84 |
| Pratt Anesthesiology Associates INC | Boston | MA | 84 |
| Anesthesia Physician Solutions Of North Florida LLC | Gainesville | FL | 83 |
| University Of Louisville Physicians INC | Louisville | KY | 83 |
| Ams National LLC | Sebring | FL | 82 |
| Physician Affiliate Group Of New York PC | New York | NY | 82 |
| Kentucky Medical Services Foundation, INC | Lexington | KY | 81 |
| East River Medical Associates PC | New York | NY | 81 |
| Mayo Clinic Arizona | Phoenix | AZ | 81 |
| University Of Vermont Medical Center INC | Burlington | VT | 80 |
| Anesthesia Partners Of Arizona LLC | Phoenix | AZ | 80 |
| Anesthesiologists Associated PC | Birmingham | AL | 79 |
| Orange Coast Anesthesia INC | Glendale | CA | 79 |
| Sedation Vacation Perioperative Medicine PLLC | Brooklyn | NY | 79 |
| Utmb Faculty Group Practice | Galveston | TX | 79 |
| Baylor College Of Medicine | Houston | TX | 79 |
| Gulf-To-Bay Anesthesiology Associates LLC | Tampa | FL | 78 |
| Ias Arizona PLLC | Tucson | AZ | 78 |
| Unmc Physicians | Omaha | NE | 78 |
| Stony Brook Anaesthesiology University Faculty Practice Corporation | Stony Brook | NY | 77 |
| Anesthesia Specialists Of Bethlehem PC | Allentown | PA | 77 |
| Childrens Hospital Anesthesia Corporation | New Orleans | LA | 77 |
| American Anesthesiology Of North Carolina PLLC | Raleigh | NC | 77 |
| Greater Florida Anesthesiologists LLC | Saint Petersburg | FL | 77 |
| Ou Health Partners INC | Oklahoma City | OK | 77 |
| Inova Cares - Community | Fairfax | VA | 77 |
| West Virginia University Medical Corporation | Morgantown | WV | 76 |
| Northstar Anesthesia PA | Lubbock | TX | 76 |
| American Anesthesiology Of Tennessee PC | Knoxville | TN | 76 |
| Southeast Anesthesiologists INC | Indianapolis | IN | 75 |
| Unm Medical Group INC | Albuquerque | NM | 74 |
| Lehigh Valley Physician Group | Allentown | PA | 74 |
| Red Rock Anesthesia Consultants LLC | Las Vegas | NV | 74 |
| Allied Digestive Health LLC | Englewood Cliffs | NJ | 73 |
| Jefferson University Physicians | Philadelphia | PA | 72 |
| Midwest Physician Anesthesia Services, INC. | Columbus | OH | 71 |
| Community Care Services LLC | Reno | NV | 71 |
| Capital Anesthesia Solutions Of Florida Ii, LLC | Naples | FL | 71 |
| Emory Specialty Associates, LLC | Atlanta | GA | 71 |
| Chmc Anesthesia Foundation INC | Boston | MA | 70 |
| Baystate Medical Practices INC | Springfield | MA | 69 |
| Bon Secours St Francis Xavier Hospital INC | Charleston | SC | 69 |
| Palm Springs Anesthesia Services PC | San Bernardino | CA | 68 |
| Temple Faculty Practice Plan INC | Philadelphia | PA | 68 |
| Southwest Ohio Anesthesia Consultants LLC | Cincinnati | OH | 68 |
| Children'S Hospital Medical Center | Cincinnati | OH | 68 |
| Shrewsbury Ambulatory Anesthesia LLC | Shrewsbury | NJ | 67 |
| Mcv Associated Physicians | Richmond | VA | 67 |
| Compass Anesthesia Providers, PLLC | Humble | TX | 67 |
| Sutter Valley Medical Foundation | Modesto | CA | 67 |
| Texas Childrens Physician Group | Houston | TX | 67 |
| Lahey Clinic INC | Burlington | MA | 66 |
| Anesthesia And Analgesia Medical Group INC | Santa Rosa | CA | 66 |
| Colorado Permanente Medical Group PC | Denver | CO | 66 |
| Loyola University Medical Center | Maywood | IL | 66 |
| Community Medicine Associates | San Antonio | TX | 66 |
| Salem Health | Salem | OR | 66 |
| Christus Trinity Clinic Texas | Tyler | TX | 65 |
| Woodland Anesthesia Associates PC | Hartford | CT | 65 |
| Hospitalist Medicine Physicians Of Washington - Tcs | Portland | OR | 65 |
| Anesthesia Services Associates PC | Rochester | MI | 64 |
| Anesthesia Partners Of Colorado | Edwards | CO | 64 |
| Allen Anesthesia Associates | Mckinney | TX | 63 |
| Miami Anesthesia Services LLC | Hallandale Beach | FL | 63 |
| University Of Arkansas For Medical Sciences | Little Rock | AR | 62 |
| Icahn School Of Medicine At Mount Sinai | New York | NY | 62 |
| Musc Community Physicians | Orangeburg | SC | 62 |
| California Anesthesia Associates Medical Group INC | Long Beach | CA | 62 |
| Phs Anesthesia Billing, LLC | Dayton | OH | 61 |
| Optum Medical Care PC | Mount Kisco | NY | 61 |
| Catholic Health Initiatives Colorado | Lakewood | CO | 61 |
| Lawrence Anesthesia Services LLC | Worcester | MA | 61 |
| Upmc Pinnacle Anesthesia Services LLC | Harrisburg | PA | 61 |
| Rochester General Hospital | Rochester | NY | 61 |
| Amoskeag Anesthesia PLLC | Manchester | NH | 60 |
| Associated Anesthesiologists PC | Des Moines | IA | 60 |
| Associated Anesthesiologists SC | Peoria | IL | 60 |
| Providence Health And Service- Washington | Spokane | WA | 59 |
| Pih Health Physicians | Whittier | CA | 59 |
| Bay Anesthesia | East Brunswick | NJ | 59 |
| Commonwealth Anesthesia Associates, INC | Newton | MA | 59 |
| County Of Santa Clara | San Jose | CA | 59 |
| Boulder Valley Anesthesiology, PLLC | Boulder | CO | 59 |
| Lifespan Physician Group INC | Providence | RI | 58 |
| Anesthesia Medicine Services Of Fl LLC | Fort Pierce | FL | 58 |
| Mission Health Community Multispecialty Providers LLC | Asheville | NC | 58 |
| Bend Anesthesiology Group, PC | Bend | OR | 58 |
| University Of Maryland Anesthesiology Associates PA | Baltimore | MD | 58 |
| Mchs Hospitals INC | Marshfield | WI | 57 |
| Memorial Anesthesiology Group | New York | NY | 57 |
| University Medical Center Of Southern Nevada | Las Vegas | NV | 57 |
| Tacoma Anesthesia Associates INC Ps | Tacoma | WA | 57 |
| Chandler Anesthesia Consultants LLC | Chandler | AZ | 57 |
| Darin Rentz Do PC | Riverside | CA | 57 |
| The Curators Of The University Of Missouri | Columbia | MO | 56 |
| Maple Gate Anesthesiologists, P.C. | Buffalo | NY | 56 |
| Anesthesia Associates Of Kansas City PA | Overland Park | KS | 56 |
| The Unity Hospital Of Rochester | Rochester | NY | 56 |
| Iowa Physicians Clinic Medical Foundation | Bettendorf | IA | 56 |
| Saint Lukes Physician Group INC | Kansas City | MO | 55 |
| The Board Of Trustees Of The University Of Illinois | Chicago | IL | 55 |
| Columbia Anesthesia Group P S | Vancouver | WA | 55 |
| State Of Mississippi - University Of Mississippi Medical Center | Jackson | MS | 55 |
| Dupage Valley Anesthesiologists LTD | Naperville | IL | 55 |
| University Of Florida Jacksonville Physicians, INC. | Jacksonville | FL | 54 |
| Bmc Affiliated Physicians, INC. | Brockton | MA | 54 |