| Allergist Email List | 5,075 | 892 | 5,071 | 3,521 | 2,617 | 5,004 | |
| Allergy Immunology Email List | 4,984 | 855 | 4,984 | 3,441 | 2,554 | 4,918 | |
| Anesthesiologist Email List | 51,352 | 18,310 | 51,157 | 16,771 | 7,785 | 49,549 | |
| Cardiologist Email List | 24,863 | 7,496 | 24,283 | 11,507 | 8,696 | 23,850 | |
| Cardiothoracic Vascular Surgeons Email List | 3,801 | 917 | 3,801 | 2,428 | 1,685 | 3,768 | |
| Cardiovascular Surgeon Email List | 6,774 | 1,603 | 6,730 | 4,316 | 3,017 | 6,661 | |
| Colorectal Surgeons Email List | 1,069 | 249 | 1,055 | 751 | 549 | 1,049 | |
| Cosmetic Surgeons Email List | 6,242 | 1,823 | 6,178 | 4,923 | 3,502 | 6,107 | |
| Dermatologist Email List | 13,796 | 6,792 | 13,550 | 8,309 | 6,106 | 13,379 | |
| Diabetes Specialist Email List | 5,777 | 1,329 | 5,706 | 3,919 | 2,768 | 5,644 | |
| Emergency Medicine Email List | 68,221 | 11,421 | 68,123 | 27,096 | 11,750 | 65,619 | |
| Emergency Medicine Physicians Email List | 61,011 | 10,057 | 60,821 | 23,585 | 9,417 | 58,675 | |
| Endocrinologist Email List | 7,880 | 1,855 | 7,751 | 5,184 | 3,627 | 7,647 | |
| ENT Specialist Email List | 11,376 | 2,896 | 11,288 | 6,443 | 4,550 | 11,104 | |
| Family and General Practice Email List | 9,686 | 1,421 | 9,619 | 8,470 | 4,526 | 9,467 | |
| Family Medicine Specialist Email List | 135,255 | 21,082 | 134,900 | 73,248 | 54,456 | 125,649 | |
| Family Practitioners Email List | 130,428 | 20,322 | 130,093 | 69,854 | 52,736 | 121,484 | |
| Gastroenterologist Email List | 13,495 | 3,346 | 13,357 | 6,923 | 5,361 | 13,118 | |
| General Practitioner Email List | 130,464 | 20,358 | 130,093 | 69,865 | 52,738 | 121,484 | |
| Gynecologist Email List | 45,926 | 8,038 | 45,764 | 22,821 | 16,491 | 44,380 | |
| Hand Surgeon Email List | 1,208 | 490 | 1,186 | 932 | 699 | 1,173 | |
| Hematologist Email List | 11,998 | 2,423 | 11,869 | 6,446 | 4,255 | 11,651 | |
| Hospitalists Email List | 6,348 | 876 | 6,043 | 3,041 | 1,246 | 6,009 | |
| Immunologist Email List | 5,062 | 884 | 5,060 | 3,502 | 2,593 | 4,993 | |
| Internal Medicine Email List | 264,424 | 48,458 | 263,738 | 119,730 | 83,282 | 240,513 | |
| Neurologist Email List | 18,552 | 3,975 | 18,188 | 10,164 | 6,869 | 17,903 | |
| Neuromusculoskeletal Medicine Email List | 1,841 | 338 | 1,841 | 1,531 | 1,082 | 1,821 | |
| Neuropathologist Email List | 300 | 41 | 293 | 246 | 116 | 291 | |
| Neurosurgeons Email List | 175 | 175 | 0 | 80 | 14 | 0 | |
| Obstetricians and Gynecologists Email List | 45,926 | 8,038 | 45,764 | 22,821 | 16,491 | 44,380 | |
| Oncologist Email List | 18,825 | 3,520 | 18,825 | 9,810 | 6,543 | 18,444 | |
| Ophthalmologist Email List | 19,623 | 3,932 | 19,454 | 10,823 | 8,154 | 19,071 | |
| Orthopedic Surgeons Email List | 27,549 | 10,772 | 27,282 | 12,601 | 9,600 | 26,690 | |
| Otolaryngologist Email List | 11,271 | 2,857 | 11,190 | 6,357 | 4,487 | 11,006 | |
| Pain Medicine Email List | 53,870 | 18,959 | 53,649 | 18,525 | 9,176 | 51,941 | |
| Pathologist Email List | 18,686 | 4,117 | 18,131 | 9,105 | 3,801 | 17,690 | |
| Pediatric Surgeons Email List | 764 | 171 | 750 | 486 | 288 | 741 | |
| Pediatrician Email List | 92,066 | 21,503 | 91,485 | 40,387 | 26,085 | 87,759 | |
| Podiatrist Email List | 440 | 199 | 364 | 375 | 245 | 362 | |
| Preventive Medicine Email List | 4,808 | 741 | 4,807 | 4,026 | 1,997 | 4,739 | |
| Psychiatrist Email List | 52,354 | 9,025 | 52,097 | 33,111 | 19,199 | 50,276 | |
| Radiation Oncologist Email List | 4,688 | 815 | 4,687 | 2,684 | 1,798 | 4,642 | |
| Radiologist Email List | 43,988 | 8,159 | 43,493 | 15,644 | 7,700 | 42,026 | |
| Rheumatologist Email List | 4,895 | 781 | 4,888 | 3,305 | 2,380 | 4,821 | |
| Surgeons Email List | 85,249 | 23,902 | 84,047 | 43,123 | 30,689 | 80,333 | |
| Therapist Email List | 160 | 32 | 158 | 144 | 66 | 158 | |
| Urological Surgeons Email List | 111 | 111 | 0 | 66 | 6 | 0 | |
| Urologist Email List | 10,332 | 4,408 | 10,314 | 5,632 | 4,140 | 10,183 | |