| 1901 | 9682 | Mackinac Straits Hospital and Health Center | 10646 | 9925 | 7755 | 2394 |
| 1902 | 6 | M D Anderson Cancer Center | 97 | 14 | 25 | 39 |
| 1903 | 9140 | Lynn County Hospital District | 11974 | 9228 | 6826 | 2394 |
| 1904 | 4115 | Lutheran Hospital of Indiana | 6086 | 3499 | 5325 | 2394 |
| 1905 | 6643 | Lutheran HealthCare | 3097 | 5741 | 10253 | 2394 |
| 1906 | 2711 | Lutheran Health Network | 5451 | 2503 | 2535 | 2394 |
| 1907 | 238 | Lurie Children's Hospital of Chicago (Children's Memorial Hospital) | 1162 | 502 | 1420 | 208 |
| 1908 | 2369 | Ludwig Cancer Research | 6587 | 3526 | 3229 | 753 |
| 1909 | 8599 | Ludwick Eye Center | 12057 | 7056 | 8843 | 2394 |
| 1910 | 1494 | Lucile Packard Children's Hospital at Stanford CA | 1891 | 1168 | 3269 | 2394 |
| 1911 | 5949 | Lucas County Health Center | 7149 | 6715 | 4093 | 2394 |
| 1912 | 5634 | Lubbock Regional Mhmr Center | 9087 | 6288 | 2945 | 2394 |
| 1913 | 10677 | Lubbock Heart Hospital | 7975 | 10272 | 10913 | 2394 |
| 1914 | 8799 | LSU Healthcare Network | 6315 | 9245 | 8319 | 2394 |
| 1915 | 1169 | Lsu Health Care Services Division Louisiana's Hospital System | 5151 | 2691 | 708 | 479 |
| 1916 | 2286 | Lrghealthcare Lakes Region General Hospital and Franklin Regional Hospital | 4165 | 2110 | 2274 | 2394 |
| 1917 | 949 | Loyola University Health System | 1085 | 423 | 5445 | 2394 |
| 1918 | 5240 | Lower Keys Medical Center | 719 | 5449 | 9811 | 2394 |
| 1919 | 10673 | Lower Bucks Hospital | 10162 | 10360 | 9811 | 2394 |
| 1920 | 1622 | Lowell General Hospital | 2634 | 1402 | 2268 | 2394 |
| 1921 | 1476 | Lovelace Medical Group in New Mexico | 1561 | 1268 | 3039 | 2394 |
| 1922 | 1673 | Lourdes Hospital Binghamton New York | 1843 | 1691 | 2190 | 2394 |
| 1923 | 2119 | Lourdes Health System | 4297 | 1858 | 2186 | 2394 |
| 1924 | 4349 | Lourdes Health Network WA | 6936 | 5176 | 2237 | 2394 |
| 1925 | 664 | Louisiana State University Health Sciences Center Shreveport | 1401 | 776 | 575 | 1815 |
| 1926 | 6360 | Louisiana State University Eye Center | 10212 | 7009 | 3376 | 2394 |
| 1927 | 1087 | Louisiana Hospital Association | 5943 | 1433 | 534 | 1085 |
| 1928 | 2105 | Los Robles Hospital & Medical Center | 856 | 2380 | 7210 | 1739 |
| 1929 | 6349 | Los Angeles County Harbor Ucla Medical Center | 11506 | 2326 | 12104 | 2394 |
| 1930 | 8296 | Los Alamos Medical Center | 10864 | 7227 | 8319 | 2394 |
| 1931 | 4085 | Los Alamitos Medical Center CA | 6905 | 3703 | 4213 | 2394 |
| 1932 | 9328 | Loring Hospital | 3031 | 11411 | 7560 | 2394 |
| 1933 | 7524 | Loretto Hospital | 12139 | 3552 | 12104 | 2394 |
| 1934 | 4829 | Longview Regional Medical Center | 1922 | 3163 | 10913 | 2394 |
| 1935 | 5016 | Longmont United Hospital | 7361 | 3128 | 8319 | 2394 |
| 1936 | 193 | Long Island Jewish Medical Center | 307 | 163 | 1483 | 701 |
| 1937 | 980 | Long Island IVF (East Coast Fertility) | 2106 | 668 | 5597 | 1132 |
| 1938 | 9057 | Long Beach Medical Center | 15468 | 3193 | 12104 | 2394 |
| 1939 | 7482 | Lone Peak Hospital | 1302 | 8938 | 9261 | 2394 |
| 1940 | 5079 | Lompoc Healthcare District | 3677 | 8353 | 4062 | 1157 |
| 1941 | 388 | Loma Linda University Adventist Health Sciences Center | 311 | 602 | 890 | 931 |
| 1942 | 5836 | Logansport Memorial Hospital | 5759 | 7192 | 3519 | 2394 |
| 1943 | 8458 | Logan Memorial Hospital | 10233 | 8747 | 6497 | 2394 |
| 1944 | 4391 | Lodi Memorial Hospital | 3939 | 2268 | 10253 | 2394 |
| 1945 | 8203 | Lock Haven Hospital | 2032 | 8317 | 10913 | 2394 |
| 1946 | 11808 | Livingston Hospital and Health Services Inc Cha | 13938 | 12515 | 6554 | 2394 |
| 1947 | 11155 | Litzenberg Memorial County Hospital | 5325 | 11555 | 10913 | 2394 |
| 1948 | 6592 | Littleton Regional Hospital | 8241 | 9117 | 4007 | 1328 |
| 1949 | 1455 | Littleton Adventist Hospital | 3809 | 472 | 7039 | 2394 |
| 1950 | 11559 | Little Rock Eye Clinic | 10040 | 12544 | 7846 | 2394 |
| 1951 | 10931 | Little River Healthcare System | 8305 | 12489 | 6497 | 2394 |
| 1952 | 7907 | Lindsborg Community Hospital | 7044 | 9474 | 4941 | 2394 |
| 1953 | 9277 | Lincoln Surgical Hospital | 8007 | 9556 | 8481 | 2394 |
| 1954 | 11229 | Lincoln Hospital & North Basin Medical Clinic WA | 15468 | 7834 | 10253 | 2394 |
| 1955 | 8942 | Lincoln County Public Hospital District nr 1 Odessa Memorial Healthcare Center WA | 10002 | 10475 | 4413 | 2394 |
| 1956 | 7816 | Lincoln County Medical Center | 3259 | 9215 | 7660 | 2394 |
| 1957 | 6529 | Lincoln County Health System | 8620 | 4437 | 9504 | 2394 |
| 1958 | 11618 | Lincoln Center Obstetrics & Gynecology P.A. | 12892 | 12452 | 6897 | 2394 |
| 1959 | 4019 | Lima Memorial Hospital | 1619 | 4646 | 6328 | 2394 |
| 1960 | 10458 | Lillian M Hudspeth Memorial Hospital | 6954 | 11633 | 7956 | 2394 |
| 1961 | 402 | Lifespan Health System | 363 | 308 | 2976 | 1145 |
| 1962 | 2589 | Lifepoint Hospitals Inc UT | 9897 | 1583 | 3044 | 2394 |
| 1963 | 7180 | Lifecare Medical Center | 4906 | 10051 | 2748 | 2394 |
| 1964 | 3289 | Lifecare Hospitals NV | 8007 | 2431 | 3985 | 2394 |
| 1965 | 118 | Lifebridge Health | 1656 | 8 | 1005 | 1815 |
| 1966 | 3603 | Licking Memorial Health Systems | 4912 | 3757 | 3504 | 2394 |
| 1967 | 4579 | Liberty Regional Medical Center | 5231 | 4438 | 5445 | 2394 |
| 1968 | 5171 | Liberty Hospital | 10262 | 2571 | 8843 | 2394 |
| 1969 | 2704 | LHC Group | 4019 | 1922 | 5399 | 2394 |
| 1970 | 1657 | Lexington Medical Center | 3445 | 1363 | 4966 | 1328 |
| 1971 | 2549 | Lexington Clinic | 4436 | 3988 | 2429 | 1157 |
| 1972 | 1523 | Lewis Gale Medical Center | 940 | 1637 | 5959 | 1289 |
| 1973 | 5661 | Lewis County General Hospital | 10360 | 6554 | 2043 | 2394 |
| 1974 | 8150 | Lewis and Clark Specialty Hospital | 10864 | 9341 | 6274 | 1815 |
| 1975 | 8799 | Levinson Eye Clinic | 10717 | 5743 | 12104 | 2394 |
| 1976 | 3574 | Levine Children's Hospital | 14682 | 357 | 12104 | 2394 |
| 1977 | 8030 | Levi Hospital | 9897 | 4836 | 12104 | 2394 |
| 1978 | 1596 | Lenox Hill Hospital New York NY | 4370 | 854 | 3832 | 2394 |
| 1979 | 8475 | Lenox Hill Heart and Vascular Institute of New York | 7056 | 8838 | 7846 | 2394 |
| 1980 | 1320 | Lenoir Memorial Hospital | 4776 | 573 | 5399 | 1934 |
| 1981 | 8180 | Lehigh Valley Hospital and Health Network | 8736 | 5969 | 10913 | 2394 |
| 1982 | 11110 | Lehigh Valley Health Network Hazleton | 5026 | 13241 | 5746 | 2394 |
| 1983 | 6115 | Lehigh Regional Medical Center | 542 | 7369 | 9504 | 2394 |
| 1984 | 263 | Legacy Health System Oregon | 1832 | 404 | 971 | 338 |
| 1985 | 4123 | Lee's Summit Medical Center | 993 | 5451 | 7660 | 1934 |
| 1986 | 369 | Lee Memorial Health System | 377 | 554 | 525 | 1085 |
| 1987 | 8836 | Lea Regional Medical Center | 2313 | 9158 | 10913 | 2394 |
| 1988 | 978 | Le Bonheur Children's Medical Center | 1977 | 1033 | 948 | 1934 |
| 1989 | 2712 | Lawrence Memorial Hospital | 2587 | 2225 | 9504 | 1085 |
| 1990 | 9506 | Lawrence Health Services | 11903 | 7677 | 10253 | 2394 |
| 1991 | 3410 | Lawrence General Hospital | 7702 | 3527 | 3163 | 1934 |
| 1992 | 3703 | Lawrence & Memorial Hospital | 3313 | 2311 | 8651 | 2394 |
| 1993 | 1017 | Lawnwood Regional Medical Center & Heart Institute | 976 | 490 | 5838 | 2394 |
| 1994 | 7524 | Laurel Health System | 11474 | 4982 | 9811 | 2394 |
| 1995 | 9781 | Laurel Eye Clinic | 11548 | 9318 | 8651 | 2394 |
| 1996 | 4501 | Laughlin Memorial Hospital | 6402 | 4732 | 3880 | 2394 |
| 1997 | 5611 | Lasik Vision Institute | 6075 | 3190 | 10253 | 2394 |
| 1998 | 11812 | Lasercare Eye Center P.A. | 7910 | 13238 | 7133 | 2394 |
| 1999 | 6739 | Lasalle General Hospital | 10233 | 6792 | 5019 | 2394 |
| 2000 | 7907 | Las Vegas Surgery Center | 251 | 10225 | 10253 | 2394 |
