| 1901 | 2041 | Memorial Medical Center Modesto CA | 2017 | 3142 | 4392 | 972 |
| 1902 | 8312 | Memorial Medical Center Port Lavaca | 5432 | 9645 | 6757 | 2394 |
| 1903 | 5288 | Memorial Regional Hospital in Hollywood | 9781 | 3780 | 6677 | 2394 |
| 1904 | 9138 | Memorial Regional Hospital South Hollywood Medical Center | 13585 | 7526 | 8651 | 2394 |
| 1905 | 9 | Memorial Sloan Kettering Cancer Center | 26 | 18 | 619 | 107 |
| 1906 | 767 | Memorialcare Medical Centers | 1033 | 523 | 2010 | 2394 |
| 1907 | 8593 | Mena Regional Health System | 10191 | 8904 | 6619 | 2394 |
| 1908 | 2716 | Mendocino Coast District Hospital | 5669 | 3201 | 1227 | 2394 |
| 1909 | 6814 | Mendota Community Hospital | 4891 | 4947 | 10913 | 2394 |
| 1910 | 8380 | Menlo Medical Clinic | 9231 | 8978 | 6328 | 2394 |
| 1911 | 2418 | Menninger Clinic | 7303 | 1672 | 5202 | 1815 |
| 1912 | 1942 | Menorah Medical Center | 988 | 1697 | 7039 | 1934 |
| 1913 | 7445 | Mercer Health | 5190 | 8237 | 7133 | 2394 |
| 1914 | 89 | Mercy | 188 | 196 | 394 | 279 |
| 1915 | 1593 | Mercy | 1242 | 1743 | 2160 | 2394 |
| 1916 | 9715 | Mercy and Unity Hospitals | 14968 | 4851 | 12104 | 2394 |
| 1917 | 7169 | Mercy Center for Corrective Eye Surgery | 9863 | 7425 | 8217 | 1328 |
| 1918 | 1359 | Mercy Health | 3485 | 1766 | 1259 | 1289 |
| 1919 | 1796 | Mercy Health (Catholic Health Partners) | 2912 | 1702 | 1994 | 2394 |
| 1920 | 2519 | Mercy Health Partners Muskegon | 3526 | 2491 | 2797 | 2394 |
| 1921 | 2348 | Mercy Health Saint Mary's Health Care | 2466 | 2810 | 2065 | 2394 |
| 1922 | 843 | Mercy Health Services Baltimore MD | 1352 | 798 | 4856 | 843 |
| 1923 | 2508 | Mercy Health System Conshohocken PA | 1601 | 1214 | 9811 | 2394 |
| 1924 | 658 | Mercy Health System Janesville WI | 1383 | 1026 | 1777 | 661 |
| 1925 | 2014 | Mercy Hospital and Medical Center | 6436 | 1603 | 4270 | 1328 |
| 1926 | 8546 | Mercy Hospital Devils Lake ND | 11358 | 8647 | 6328 | 2394 |
| 1927 | 588 | Mercy Hospital Medical Center des Moines | 699 | 637 | 1053 | 1815 |
| 1928 | 738 | Mercy Hospital Miami | 1129 | 456 | 6374 | 1085 |
| 1929 | 6183 | Mercy Hospital of Bakersfield Mercy Southwest Hospital | 2803 | 6062 | 8843 | 2394 |
| 1930 | 10294 | Mercy Hospital Valley City | 12303 | 11770 | 4232 | 2394 |
| 1931 | 6239 | Mercy Hospital&Health Care Center | 9376 | 6818 | 3778 | 2394 |
| 1932 | 3453 | Mercy Iowa City Hospital Iowa City IA | 2531 | 4558 | 3145 | 2394 |
| 1933 | 3173 | Mercy Medical Alabama | 5206 | 2861 | 3748 | 2394 |
| 1934 | 1695 | Mercy Medical Center Canton Ohio | 2275 | 2085 | 1816 | 1934 |
| 1935 | 5607 | Mercy Medical Center Catholic Health Initiatives Denver Colorado | 6122 | 5151 | 6757 | 2394 |
| 1936 | 3026 | Mercy Medical Center Cedar Rapids | 2597 | 1576 | 9261 | 2394 |
| 1937 | 8497 | Mercy Medical Center Centerville | 7495 | 9307 | 6826 | 2394 |
| 1938 | 5509 | Mercy Medical Center Clinton | 4877 | 6013 | 5399 | 2394 |
| 1939 | 3203 | Mercy Medical Center Community Roseburg Oregon | 3037 | 3094 | 4886 | 2394 |
| 1940 | 1831 | Mercy Medical Center Dubuque & Dyersville | 2039 | 2684 | 2468 | 1328 |
| 1941 | 4104 | Mercy Medical Center Merced | 2861 | 2679 | 9261 | 2394 |
| 1942 | 8180 | Mercy Medical Center Mt Shasta | 5320 | 8157 | 9055 | 2394 |
| 1943 | 10025 | Mercy Medical Center Nampa ID | 12594 | 7233 | 12104 | 2394 |
| 1944 | 5109 | Mercy Medical Center New Hampton | 4382 | 4633 | 7298 | 2394 |
| 1945 | 1611 | Mercy Medical Center North Iowa | 2564 | 2350 | 1565 | 1328 |
| 1946 | 1506 | Mercy Medical Center of Durango | 6572 | 389 | 6826 | 2394 |
| 1947 | 3676 | Mercy Medical Center Redding | 3455 | 3236 | 6113 | 2394 |
| 1948 | 2005 | Mercy Medical Center Sioux City | 2215 | 2527 | 2382 | 1934 |
| 1949 | 4914 | Mercy Memorial Hospital System | 4830 | 2369 | 10913 | 2394 |
| 1950 | 522 | Meridian Health | 298 | 388 | 1334 | 2394 |
| 1951 | 1113 | Meriter Health Services | 1774 | 968 | 1351 | 2394 |
| 1952 | 5960 | Mesa View Regional Hospital Nv | 2344 | 4997 | 10253 | 2394 |
| 1953 | 7359 | Methodist Family Health | 10606 | 7481 | 5488 | 2394 |
| 1954 | 1204 | Methodist Health System | 2650 | 828 | 1928 | 2394 |
| 1955 | 653 | Methodist Health System North Texas Dallas Hospitals | 958 | 613 | 1151 | 1934 |
| 1956 | 759 | Methodist Healthcare | 520 | 1025 | 1852 | 1289 |
| 1957 | 768 | Methodist Healthcare Memphis Tennessee | 2612 | 861 | 965 | 1157 |
| 1958 | 3858 | Methodist Hospital Arcadia CA | 8963 | 2076 | 6962 | 2394 |
| 1959 | 6167 | Methodist Hospital Henderson Kentucky | 5612 | 3749 | 10913 | 2394 |
| 1960 | 8203 | Methodist Hospital of Chicago | 12013 | 5564 | 10253 | 2394 |
| 1961 | 7727 | Methodist Hospital Union County | 8701 | 5372 | 10913 | 2394 |
| 1962 | 2921 | Methodist Hospitals Gary IN | 1629 | 3672 | 3748 | 2394 |
| 1963 | 2024 | Methodist Medical Center of Oak Ridge | 521 | 3035 | 2748 | 2394 |
| 1964 | 6398 | Methodist Physicians (Cardiology Clinic of San Antonio) | 1117 | 10513 | 3195 | 2394 |
| 1965 | 5515 | Methodist Rehabilitation Center | 4259 | 7381 | 4547 | 1934 |
| 1966 | 972 | Metro Health | 2187 | 1400 | 1212 | 1085 |
| 1967 | 7346 | Metro Urology | 11701 | 6589 | 6619 | 2394 |
| 1968 | 10399 | Metrocrest Hospital Authority | 12537 | 11568 | 5071 | 2394 |
| 1969 | 213 | Metrohealth System | 1094 | 466 | 414 | 353 |
| 1970 | 1691 | Metroplex Health System | 447 | 2734 | 1722 | 2394 |
| 1971 | 729 | Metrowest Medical Center | 80 | 1652 | 4483 | 576 |
| 1972 | 8030 | Mhcs Memorial Health Care Systems | 8687 | 8258 | 6962 | 2394 |
| 1973 | 574 | Miami Children's Hospital | 1898 | 556 | 1466 | 1077 |
| 1974 | 3176 | Miami Jewish Home & Hospital at Douglas Gardens | 7256 | 1742 | 6430 | 2394 |
| 1975 | 1720 | Miami Valley Hospital | 2972 | 1635 | 1761 | 2394 |
| 1976 | 1480 | Michael E Debakey Va Medical Center | 4285 | 1622 | 3218 | 931 |
| 1977 | 7296 | Michael Reese Hospital | 393 | 8646 | 10913 | 2394 |
| 1978 | 11416 | Michigan Urological Clinic | 12223 | 10837 | 10253 | 2394 |
| 1979 | 2264 | Mid Coast Health Services & Mid Coast Hospital | 3007 | 1975 | 3409 | 2394 |
| 1980 | 7419 | Mid Valley Hospital WA | 7734 | 8338 | 5399 | 2394 |
| 1981 | 5569 | Middle Park Medical Center (Kremmling Memorial Hospital) | 8219 | 5919 | 3893 | 2394 |
| 1982 | 806 | Middlesex Hospital | 469 | 1945 | 2354 | 525 |
| 1983 | 2134 | Midland Fertility Services | 1463 | 2526 | 2762 | 2394 |
| 1984 | 2933 | Midland Memorial Hospital | 2980 | 3347 | 2998 | 2394 |
| 1985 | 2036 | Midmichigan Health | 599 | 1165 | 9504 | 2394 |
| 1986 | 2200 | Midstate Medical Center | 8038 | 1260 | 3519 | 2394 |
| 1987 | 11719 | Midtown Urology and Midtown Urology Surgical Center | 13419 | 11392 | 9504 | 2394 |
| 1988 | 9651 | Midwest Eye Center | 10646 | 8807 | 9504 | 2394 |
| 1989 | 8955 | Midwest Fertility Specialists | 11862 | 8990 | 6757 | 2394 |
| 1990 | 4375 | Midwest Regional Medical Center Midwest City Oklahoma | 662 | 3560 | 10913 | 2394 |
| 1991 | 7990 | Mile Bluff Medical Center | 5221 | 6639 | 10913 | 2394 |
| 1992 | 3020 | Miles Health Care | 3598 | 2608 | 8651 | 1145 |
| 1993 | 5213 | Milford Hospital CT | 11701 | 3123 | 6962 | 2394 |
| 1994 | 3173 | Milford Regional Medical Center MA | 3487 | 3264 | 3911 | 2394 |
| 1995 | 8945 | Mille Lacs Health System | 8767 | 9248 | 7755 | 2394 |
| 1996 | 11341 | Miller County Hospital | 10478 | 11784 | 8843 | 2394 |
| 1997 | 858 | Mills Peninsula Health Services | 480 | 888 | 4442 | 1157 |
| 1998 | 4064 | Milton Hospital MA | 6449 | 3469 | 4991 | 2394 |
| 1999 | 8950 | Mimbres Memorial Hospital | 2300 | 9740 | 10253 | 2394 |
| 2000 | 6962 | Minden Medical Center | 8802 | 7819 | 4392 | 2394 |
