| 2401 | 1865 | Massachusetts Alzheimer's Disease Research Center Massachusetts General Hospital |  | 2821 | 3781 | 2176 | 753 |
| 2402 | 11729 | Massac Memorial Hospital | | 9897 | 11544 | 10913 | 2394 |
| 2403 | 1476 | Masonicare Wallingford CT | | 3872 | 1689 | 3607 | 860 |
| 2404 | 2564 | Mason General Hospital WA | | 6010 | 2162 | 2496 | 2394 |
| 2405 | 7351 | Mason District Hospital St Havana Illinois | | 11358 | 4155 | 10913 | 2394 |
| 2406 | 8855 | Maryland District of Columbia Society for Respiratory Care | | 12181 | 9921 | 5709 | 1934 |
| 2407 | 8142 | Mary Rutan Hospital | | 9981 | 7984 | 7133 | 2394 |
| 2408 | 8214 | Mary Lanning Healthcare | | 3858 | 7845 | 10253 | 2394 |
| 2409 | 3090 | Mary Greeley Medical Center | | 2511 | 1995 | 9811 | 1815 |
| 2410 | 6611 | Mary Black Health System | | 1744 | 6047 | 10913 | 2394 |
| 2411 | 2583 | Mary Bird Perkins Cancer Center | | 4152 | 3482 | 3062 | 1328 |
| 2412 | 12745 | Martinelli Eye Clinic | | 11249 | 13156 | 9261 | 2394 |
| 2413 | 2821 | Martin Health System | | 3780 | 2897 | 3039 | 2394 |
| 2414 | 5920 | Martin General Hospital | | 1852 | 5251 | 10253 | 2394 |
| 2415 | 5089 | Martin Army Community Hospital | | 8472 | 5140 | 3832 | 2394 |
| 2416 | 3026 | Martha Jefferson Hospital | | 2734 | 1188 | 10913 | 2394 |
| 2417 | 242 | Marshfield Clinic | | 1692 | 306 | 686 | 458 |
| 2418 | 10120 | Marshalltown Medical and Surgical Center | | 6644 | 12085 | 5709 | 2394 |
| 2419 | 2564 | Marshall Medical Placerville CA | | 1782 | 2656 | 4305 | 2394 |
| 2420 | 6004 | Marshall Medical Centers | | 7035 | 3178 | 10913 | 2394 |
| 2421 | 10570 | Marshall County Hospital | | 10175 | 11128 | 8086 | 2394 |
| 2422 | 10555 | Marshall Browning Hospital | | 5632 | 10594 | 10913 | 2394 |
| 2423 | 765 | Marquette General Health System Regional Medical Center | | 531 | 988 | 472 | 2394 |
| 2424 | 7919 | Marlette Regional Hospital | | 7473 | 9873 | 3871 | 2394 |
| 2425 | 8938 | Marlboro Park Hospital | | 2088 | 9471 | 10913 | 2394 |
| 2426 | 2650 | Markham Stouffville Hospital |  | 4754 | 2665 | 2229 | 2394 |
| 2427 | 15477 | Markham Medical Centre | | 14374 | 14667 | 12104 | 2394 |
| 2428 | 7014 | Mark Twain Medical Center | | 3024 | 9183 | 5488 | 2394 |
| 2429 | 4570 | Marion General Hospital Marion Indiana | | 1887 | 5923 | 5127 | 2394 |
| 2430 | 9834 | Marineyes Mission | | 9121 | 9780 | 9055 | 2394 |
| 2431 | 4476 | Marina del Rey Hospital | | 3118 | 4129 | 7298 | 2394 |
| 2432 | 2971 | Marin General Hospital | | 4180 | 2528 | 4392 | 2394 |
| 2433 | 5611 | Marietta Eye Clinic | | 6993 | 4616 | 7393 | 2394 |
| 2434 | 1030 | Maricopa Integrated Health System | | 2979 | 1393 | 586 | 1739 |
| 2435 | 9462 | Marias Medical Center MT | | 11903 | 9534 | 7298 | 2394 |
| 2436 | 3550 | Marian Medical Center Santa Maria CA | | 2665 | 4242 | 5597 | 1934 |
| 2437 | 11067 | Marian Community Hospital | | 14607 | 10953 | 6757 | 2394 |
| 2438 | 8739 | Marian Clinic | | 13331 | 10251 | 5294 | 1328 |
| 2439 | 8303 | Maria Parham Medical Center | | 7024 | 9247 | 6619 | 2394 |
| 2440 | 11316 | Margaret Mary Health | | 8277 | 12811 | 6677 | 2394 |
| 2441 | 9981 | Marengo Memorial Hospital | | 12013 | 9961 | 7846 | 2394 |
| 2442 | 3555 | Marcus Daly Memorial Hospital MT | | 4122 | 4772 | 1997 | 2394 |
| 2443 | 10073 | Marcum & Wallace Memorial Hospital | | 2678 | 11630 | 9261 | 2394 |
| 2444 | 10691 | Maple Grove Eye Clinic and Opticians | | 12684 | 9927 | 9504 | 2394 |
| 2445 | 13165 | Maple Family Health Team | | 7220 | 14168 | 6677 | 2394 |
| 2446 | 6820 | Manning Regional Healthcare Center | | 7634 | 7450 | 5267 | 2394 |
| 2447 | 5185 | Mankato Clinic | | 4963 | 7172 | 2096 | 2394 |
| 2448 | 9494 | Manitouwadge General Hospital | | 12892 | 11066 | 4605 | 1934 |
| 2449 | 4287 | Maniilaq Association | | 11862 | 3458 | 3029 | 2394 |
| 2450 | 10532 | Manhattan Surgical Center | | 13331 | 9842 | 8843 | 2394 |
| 2451 | 7423 | Manchester Memorial Hospital | | 4434 | 8613 | 6826 | 2394 |
| 2452 | 4015 | Manatee Memorial Hospital | | 7712 | 2967 | 5445 | 2394 |
| 2453 | 5459 | Manatee / Sarasota Eye Clinic | | 9446 | 4652 | 5624 | 2394 |
| 2454 | 14077 | Mamo Rad Ltda Instituto de Diagnóstico por Imagem |  | 8935 | 14258 | 10913 | 2394 |
| 2455 | 6881 | Mammoth Hospital | | 6638 | 4918 | 10253 | 2394 |
| 2456 | 4940 | Male Fertility Clinic | | 6366 | 3669 | 7477 | 2394 |
| 2457 | 5200 | Major Hospital | | 10279 | 3798 | 6059 | 2394 |
| 2458 | 4154 | Mainland Medical Center | | 1370 | 4684 | 7133 | 2394 |
| 2459 | 422 | Mainehealth | | 431 | 519 | 436 | 1815 |
| 2460 | 716 | MaineGeneral Health | | 896 | 1208 | 2772 | 622 |
| 2461 | 197 | Maine Medical Center | | 220 | 275 | 336 | 857 |
| 2462 | 3548 | Maine Coast Memorial Hospital | | 1508 | 4985 | 3985 | 2394 |
| 2463 | 839 | Main Line Health | | 529 | 538 | 3715 | 2394 |
| 2464 | 838 | Maimonides Medical Center Brooklyn New York | | 643 | 812 | 10253 | 341 |
| 2465 | 14472 | Mahoning Valley Hospital | | 13227 | 14455 | 10253 | 2394 |
| 2466 | 10814 | Mahnomen Health Center | | 9720 | 10988 | 9261 | 2394 |
| 2467 | 8626 | Mahaska Health Partnership | | 3011 | 8438 | 10913 | 2394 |
| 2468 | 9040 | Magruder Hospital | | 7199 | 7762 | 10913 | 2394 |
| 2469 | 6004 | Magnolia Regional Health Center | | 7995 | 6214 | 4915 | 2394 |
| 2470 | 11477 | Magnolia Hospital | | 9516 | 12326 | 8319 | 2394 |
| 2471 | 14164 | Magie Mabrey Eye Clinic PA | | 13374 | 14320 | 9055 | 2394 |
| 2472 | 2574 | Magee Rehabilitation Hospital | | 3432 | 2281 | 3832 | 2394 |
| 2473 | 9344 | Magee General Hospital | | 6130 | 10514 | 7660 | 2394 |
| 2474 | 15284 | Madre Saúde Sao Paulo | | 13271 | 14667 | 12104 | 2394 |
| 2475 | 4165 | Madonna Rehabilitation Hospital | | 2840 | 1753 | 12104 | 2394 |
| 2476 | 9108 | Madison Memorial Hospital ID | | 14762 | 4386 | 12104 | 2394 |
| 2477 | 10565 | Madison Medical Center | | 13989 | 8956 | 9811 | 2394 |
| 2478 | 10256 | Madison Lutheran Home | | 8571 | 11226 | 7660 | 2394 |
| 2479 | 9663 | Madison County Health Care Systems | | 11736 | 7595 | 10913 | 2394 |
| 2480 | 9815 | Madison Community Hospital | | 12098 | 9101 | 8843 | 2394 |
| 2481 | 890 | Madison Center | | 2641 | 1296 | 1105 | 860 |
| 2482 | 3140 | Madigan Army Medical Center | | 7449 | 1641 | 7956 | 1934 |
| 2483 | 5971 | Madera Community Hospital | | 8752 | 5323 | 6328 | 2394 |
| 2484 | 6979 | Madelia Community Hospital | | 7867 | 8516 | 3550 | 2394 |
| 2485 | 12952 | Maddox Laser Eye Center | | 13835 | 12031 | 12104 | 2394 |
| 2486 | 5767 | Mad River Community Hospital | | 9804 | 5169 | 5325 | 2394 |
| 2487 | 10929 | Macon County General Hospital | | 10717 | 10960 | 9261 | 2394 |
| 2488 | 15151 | Macon County Eye Center P.C. | | 13725 | 14667 | 10913 | 2394 |
| 2489 | 833 | Macneal Hospital | | 627 | 2104 | 4991 | 273 |
| 2490 | 9682 | Mackinac Straits Hospital and Health Center | | 10646 | 9925 | 7755 | 2394 |
| 2491 | 6 | M D Anderson Cancer Center | | 97 | 14 | 25 | 39 |
| 2492 | 9140 | Lynn County Hospital District | | 11974 | 9228 | 6826 | 2394 |
| 2493 | 12318 | Lyndon B Johnson General Hospital | | 15080 | 9537 | 12104 | 2394 |
| 2494 | 4115 | Lutheran Hospital of Indiana | | 6086 | 3499 | 5325 | 2394 |
| 2495 | 6643 | Lutheran HealthCare | | 3097 | 5741 | 10253 | 2394 |
| 2496 | 2711 | Lutheran Health Network | | 5451 | 2503 | 2535 | 2394 |
| 2497 | 238 | Lurie Children's Hospital of Chicago (Children's Memorial Hospital) | | 1162 | 502 | 1420 | 208 |
| 2498 | 2369 | Ludwig Cancer Research | | 6587 | 3526 | 3229 | 753 |
| 2499 | 8599 | Ludwick Eye Center | | 12057 | 7056 | 8843 | 2394 |
| 2500 | 1494 | Lucile Packard Children's Hospital at Stanford CA | | 1891 | 1168 | 3269 | 2394 |
