| 2001 | 4403 | Northeastern Vermont Regional Hospital | 5892 | 4842 | 3533 | 2394 |
| 2002 | 10109 | Nevada Health Centers | 14682 | 6046 | 12104 | 2394 |
| 2003 | 7460 | Northwest Eye Clinic MN | 8844 | 5577 | 9811 | 2394 |
| 2004 | 6785 | Northwest Eye Surgeons Seattle WA | 5737 | 4036 | 12104 | 2394 |
| 2005 | 1786 | Newton Wellesley Hospital | 2053 | 1242 | 5102 | 2394 |
| 2006 | 710 | Northwest Hospital Gamma Knife Center | 3917 | 270 | 1590 | 2394 |
| 2007 | 7145 | Citizens Medical Center Inc. | 5622 | 8225 | 5959 | 2394 |
| 2008 | 4673 | Northwest Texas Healthcare System | 9019 | 3362 | 5959 | 2394 |
| 2009 | 1301 | Nyack Hospital | 4554 | 581 | 3731 | 2394 |
| 2010 | 6392 | New York Community Hospital | 4477 | 5512 | 9261 | 2394 |
| 2011 | 11366 | Gracie Square Hospital | 15468 | 7675 | 10913 | 2394 |
| 2012 | 1507 | New York Methodist Hospital | 4633 | 982 | 2053 | 2394 |
| 2013 | 9621 | NewYork Presbyterian / Lawrence Hospital (Lawrence Hospital Center) | 6155 | 10854 | 7755 | 2394 |
| 2014 | 4314 | NYU Fertility Center New York NY | 6017 | 3055 | 7210 | 2394 |
| 2015 | 5109 | Department of Obstetrics and Gynecology at the St Luke's Roosevelt Hospital Center | 5051 | 5099 | 5873 | 2394 |
| 2016 | 2310 | Oregon Association of Hospitals and Health Systems | 7241 | 1513 | 3178 | 2394 |
| 2017 | 7176 | Oakbend Medical Center | 9002 | 6464 | 7660 | 2394 |
| 2018 | 10401 | Oakdale Community Hospital | 14541 | 8801 | 8843 | 2394 |
| 2019 | 9105 | Oakdale Obstetrics and Gynecology P.A. | 9148 | 10637 | 5071 | 2394 |
| 2020 | 979 | Oak Hill Hospital | 816 | 629 | 3814 | 2394 |
| 2021 | 8162 | Oakland Mercy Hospital | 3913 | 10806 | 4575 | 2394 |
| 2022 | 7565 | Oakleaf Medical Network | 5975 | 7124 | 8843 | 2394 |
| 2023 | 3881 | Oak Valley Hospital Catholic Healthcare West CA | 8586 | 3045 | 4232 | 2394 |
| 2024 | 6755 | Ocala Eye Center | 11548 | 5720 | 6554 | 2394 |
| 2025 | 8705 | Ocean Beach Hospital and Medical Clinics WA | 10815 | 9787 | 4798 | 2394 |
| 2026 | 11260 | Our Community Hospital | 14273 | 9736 | 10253 | 2394 |
| 2027 | 6155 | Oktibbeha County Hospital | 9002 | 5899 | 5518 | 2394 |
| 2028 | 4982 | Orange City Area Health System | 3752 | 7072 | 2382 | 2394 |
| 2029 | 10029 | Ochiltree General Hospital | 14968 | 5384 | 12104 | 2394 |
| 2030 | 6268 | O'Connor Hospital | 8063 | 6651 | 4915 | 2394 |
| 2031 | 6195 | Odessa Regional Medical Center | 2748 | 8476 | 4442 | 2394 |
| 2032 | 1742 | Ogden Regional Medical Center UT | 1408 | 895 | 7755 | 2394 |
| 2033 | 4259 | Olean General Hospital | 5082 | 4459 | 4365 | 2394 |
| 2034 | 10369 | Ohio Orthopedic Center of Excellence | 14968 | 7223 | 9811 | 2394 |
| 2035 | 6036 | Ohio County Hospital | 8556 | 4825 | 7560 | 2394 |
| 2036 | 11008 | Ohio Eye Alliance | 12454 | 9114 | 12104 | 2394 |
| 2037 | 7957 | Ohio Heart & Vascular Center | 7269 | 8426 | 7039 | 2394 |
| 2038 | 4829 | Ohio Valley General Hospital | 9781 | 3766 | 5127 | 2394 |
| 2039 | 11262 | Orthopaedic Hospital of Wisconsin | 14682 | 10414 | 8319 | 2394 |
| 2040 | 11411 | Oklahoma City Clinic | 12411 | 11827 | 8086 | 2394 |
| 2041 | 9637 | Okeene Municipal Hospital | 14968 | 9192 | 4232 | 2394 |
| 2042 | 4841 | Oklahoma Heart Hospital | 6624 | 4278 | 5789 | 2394 |
| 2043 | 10942 | Oklahoma Spine Hospital | 12013 | 10368 | 9811 | 2394 |
| 2044 | 9513 | Orthopedic Hospital of Oklahoma | 9104 | 10384 | 7039 | 2394 |
| 2045 | 4383 | Olin Health Center | 10646 | 3782 | 3204 | 2394 |
| 2046 | 5286 | Olmsted Medical Center | 4782 | 3101 | 10253 | 2394 |
| 2047 | 10393 | Olson Center for Women's Health University of Nebraska Medical Center | 9431 | 9463 | 10913 | 2394 |
| 2048 | 8084 | Olympia Medical Center Los Angeles CA | 10360 | 7151 | 8217 | 2394 |
| 2049 | 9506 | Omaha Eye & Laser Institute and Lincoln Eye & Laser Institute | 10140 | 9153 | 8843 | 2394 |
| 2050 | 8098 | Omega Hospital Llc. | 13271 | 3958 | 12104 | 2394 |
| 2051 | 8942 | Lincoln County Public Hospital District nr 1 Odessa Memorial Healthcare Center WA | 10002 | 10475 | 4413 | 2394 |
| 2052 | 8674 | Omni Eye Services | 8710 | 9685 | 6059 | 2394 |
| 2053 | 11895 | Oncology Center of Central Baltimore | 12303 | 10794 | 12104 | 2394 |
| 2054 | 5064 | Oneida Healthcare Center | 4297 | 3309 | 9504 | 2394 |
| 2055 | 11516 | Oneida County Hospital Id | 7898 | 11573 | 10913 | 2394 |
| 2056 | 2239 | Onslow Memorial Hospital | 446 | 2923 | 4413 | 2394 |
| 2057 | 4775 | Opelousas General Health System | 8038 | 3882 | 5660 | 2394 |
| 2058 | 5052 | Oregon Urology Institute | 7622 | 4419 | 5660 | 2394 |
| 2059 | 3019 | Orange Regional Medical Center | 2610 | 2718 | 5399 | 2394 |
| 2060 | 7031 | Oro Valley Hospital | 1175 | 7232 | 10913 | 2394 |
| 2061 | 264 | Oroville Hospital | 674 | 64 | 1346 | 2394 |
| 2062 | 3623 | Orthopaedic Hospital | 7854 | 2312 | 5873 | 2394 |
| 2063 | 7623 | Orthopaedic Institute of Ohio | 11474 | 7237 | 6213 | 2394 |
| 2064 | 1199 | Osceola Regional Medical Center | 882 | 656 | 6059 | 2394 |
| 2065 | 4518 | Osf Holy Family Medical Center | 2701 | 3940 | 8086 | 2394 |
| 2066 | 4955 | OSF Saint Elizabeth Medical Center (Community Hospital of Ottawa) | 3571 | 4424 | 7755 | 2394 |
| 2067 | 4673 | Osf Saint James John W Albrecht Medical Center | 2007 | 5093 | 6962 | 2394 |
| 2068 | 4069 | Osf Saint Francis Hospital Escanaba | 2286 | 3288 | 8319 | 2394 |
| 2069 | 3383 | Osf Saint Mary Medical Center | 2252 | 2914 | 6962 | 2394 |
| 2070 | 6755 | Oklahoma State University Medical Center | 8219 | 6584 | 6554 | 2394 |
| 2071 | 3985 | Oswego Hospital | 6222 | 3763 | 4041 | 2394 |
| 2072 | 8317 | Othello Community Hospital WA | 5070 | 10238 | 5660 | 2394 |
| 2073 | 11349 | Ottawa County Health Center | 13788 | 12168 | 5789 | 2394 |
| 2074 | 7605 | Ottumwa Regional Health Center | 4803 | 8889 | 6619 | 2394 |
| 2075 | 9823 | Our Lady of The Resurrection Medical Center | 11589 | 7190 | 12104 | 2394 |
| 2076 | 4327 | Our Lady of Victory Hospital | 6466 | 3168 | 6677 | 2394 |
| 2077 | 2083 | Overlake Hospital Medical Center WA | 1633 | 1157 | 8086 | 2394 |
| 2078 | 5977 | Owensboro Health | 3288 | 4869 | 9811 | 2394 |
| 2079 | 3915 | Ozarks Medical Center | 7964 | 3315 | 3985 | 2394 |
| 2080 | 6047 | Palo Alto County Health System | 4279 | 7203 | 5127 | 2394 |
| 2081 | 8195 | Pacifica Hospital of The Valley | 11832 | 5613 | 10253 | 2394 |
| 2082 | 11100 | Pacific Eye Institute | 11432 | 10198 | 10913 | 2394 |
| 2083 | 8918 | Pacific Reproductive Center | 7794 | 9265 | 8086 | 2394 |
| 2084 | 10261 | Punxsutawney Area Hospital | 12098 | 8917 | 10253 | 2394 |
| 2085 | 9184 | Palestine Regional Medical Center | 9599 | 8802 | 8843 | 2394 |
| 2086 | 4908 | Palisades Medical Hospital New York Presbyterian Healthcare System | 5441 | 4339 | 6554 | 2394 |
| 2087 | 7637 | Palm Beach Fertility Center | 8305 | 7949 | 6554 | 2394 |
| 2088 | 6299 | Lancaster Community Hospital | 5917 | 8128 | 3241 | 2394 |
| 2089 | 7089 | Palm Drive Hospital | 12594 | 8220 | 2154 | 2394 |
| 2090 | 8207 | Palmer Lutheran Health Center | 6617 | 9056 | 6962 | 2394 |
| 2091 | 3427 | Palmetto General Hospital | 5208 | 3795 | 2561 | 2394 |
| 2092 | 2142 | Palms of Pasadena Hospital | 3377 | 860 | 8319 | 2394 |
| 2093 | 4372 | Palos Community Hospital | 2562 | 2396 | 10913 | 2394 |
| 2094 | 4680 | Pacific Alliance Medical Center | 1579 | 5810 | 6167 | 2394 |
| 2095 | 8439 | Pana Community Hospital | 10002 | 8348 | 7298 | 2394 |
| 2096 | 6312 | Paradise Valley Hospital National CA | 6466 | 5517 | 8086 | 2394 |
| 2097 | 2178 | Pardee Hospital | 1103 | 2103 | 5102 | 2394 |
| 2098 | 6465 | Paris Community Hospital / Family Medical Center | 4718 | 8119 | 4532 | 2394 |
| 2099 | 7714 | Paris Regional Medical Center Essent Healthcare | 6564 | 9217 | 5202 | 2394 |
| 2100 | 6403 | Park Avenue Fertility & Reproductive Medicine | 6205 | 4609 | 9811 | 2394 |
