Number of Part D Enrollees

Number of Patients with Part D Enrollment

The following tables list the number of persons appearing in the SEER-Medicare data who are enrolled in Medicare Part D as well as the total number of patients who were eligible to enroll according to the PEDSF file. The tables were generated separately for patients not enrolled in Managed Care and for those enrolled in Managed Care only. The results were produced for three calendar years: year of diagnosis, year before diagnosis, and year after diagnosis; for all patients and by cancer site for patients with a first primary cancer. The results are further broken out by a patient's year of diagnosis, allowing for the identification of patients diagnosed during a specific year who were also enrolled in Medicare Part D during the three calendar year time periods.

Number of SEER-Medicare Cancer Patients with Part D Enrollment by Diagnosis Year 2007-20151
Diagnosis Year Cancer Site Cancer patients2 Enrolled in Part D during the calendar year of diagnosis Cancer patients3 Enrolled in Part D during the calendar year prior to diagnosis Cancer patients4 Enrolled in Part D during the calendar year after diagnosis
N N % N N % N N %
2007 All first primary cancers5 114,766 56,687 49.4 109,112 N/A N/A 90,319 47,014 52.1
Breast 14,050 7,478 53.2 13,307 N/A N/A 13,326 7,655 57.4
Colorectal 12,108 6,241 51.5 11,590 N/A N/A 9,884 5,410 54.7
Lung 17,528 9,074 51.8 16,722 N/A N/A 9,771 5,311 54.4
Prostate 20,829 8,944 42.9 19,459 N/A N/A 20,029 9,331 46.6
Other 50,251 24,950 49.7 48,034 N/A N/A 37,309 19,307 51.7
All other primary cancers6 42,067 20,110 47.8 40,655 N/A N/A 33,472 16,938 50.6
2008 All first primary cancers5 111,758 56,618 50.7 105,869 51,055 48.2 87,688 46,001 52.5
Breast 13,957 7,448 53.4 13,097 6,695 51.1 13,262 7,432 56.0
Colorectal 11,613 6,208 53.5 11,106 5,609 50.5 9,333 5,158 55.3
Lung 17,222 9,260 53.8 16,380 8,413 51.4 9,555 5,373 56.2
Prostate 18,844 8,241 43.7 17,495 7,169 41.0 18,121 8,473 46.8
Other 50,122 25,461 50.8 47,791 23,169 48.5 37,417 19,565 52.3
All other primary cancers6 42,210 20,462 48.5 40,736 18,867 46.3 33,892 17,129 50.5
2009 All first primary cancers5 108,537 56,093 51.7 103,111 51,223 49.7 85,718 46,290 54.0
Breast 13,785 7,525 54.6 12,995 6,881 53.0 13,139 7,595 57.8
Colorectal 10,793 5,721 53.0 10,339 5,273 51.0 8,694 4,858 55.9
Lung 16,758 9,103 54.3 16,031 8,433 52.6 9,429 5,364 56.9
Prostate 17,770 8,193 46.1 16,541 7,195 43.5 17,128 8,432 49.2
Other 49,431 25,553 51.7 47,205 23,441 49.7 37,328 20,041 53.7
All other primary cancers6 43,046 21,504 50.0 41,658 20,110 48.3 34,583 18,157 52.5
2010 All first primary cancers5 107,235 56,460 52.7 102,021 51,756 50.7 84,664 46,742 55.2
Breast 13,495 7,448 55.2 12,723 6,826 53.7 12,904 7,527 58.3
Colorectal 10,165 5,568 54.8 9,780 5,159 52.8 8,224 4,760 57.9
Lung 16,221 8,930 55.1 15,573 8,256 53.0 9,091 5,269 58.0
Prostate 17,137 7,997 46.7 15,934 7,101 44.6 16,439 8,264 50.3
Other 50,217 26,517 52.8 48,011 24,414 50.9 38,006 20,922 55.0
All other primary cancers6 43,990 22,497 51.1 42,650 21,162 49.6 35,461 18,984 53.5
2011 All first primary cancers5 105,950 57,443 54.2 100,544 52,037 51.8 84,137 50,562 60.1
Breast 13,669 7,773 56.9 12,848 7,024 54.7 13,020 8,212 63.1
Colorectal 9,825 5,569 56.7 9,446 5,123 54.2 7,921 4,979 62.9
Lung 15,700 8,749 55.7 15,009 8,017 53.4 8,994 5,559 61.8
Prostate 17,130 8,354 48.8 15,945 7,316 45.9 16,490 9,138 55.4
Other 49,626 26,998 54.4 47,296 24,557 51.9 37,712 22,674 60.1
All other primary cancers6 44,259 23,143 52.3 42,839 21,438 50.0 35,828 20,777 58.0
2012 All first primary cancers5 104,334 61,438 58.9 97,687 52,047 53.3 82,465 56,096 68.0
Breast 13,876 8,501 61.3 12,820 7,120 55.5 13,244 9,411 71.1
Colorectal 9,654 5,819 60.3 9,135 4,981 54.5 7,809 5,454 69.8
Lung 15,770 9,489 60.2 14,959 8,317 55.6 8,987 6,206 69.1
Prostate 14,320 7,671 53.6 13,043 6,130 47.0 13,709 8,789 64.1
Other 50,714 29,958 59.1 47,730 25,499 53.4 38,716 26,236 67.8
All other primary cancers6 46,082 26,696 57.9 44,272 23,110 52.2 37,046 24,972 67.4
2013 All first primary cancers5 102,492 67,487 65.8 96,425 55,096 57.1 81,160 56,266 69.3
Breast 13,741 9,447 68.8 12,799 7,672 59.9 13,116 9,476 72.2
Colorectal 8,954 5,959 66.6 8,476 4,865 57.4 7,224 5,103 70.6
Lung 15,181 10,204 67.2 14,464 8,557 59.2 8,718 6,167 70.7
Prostate 13,646 8,311 60.9 12,531 6,442 51.4 13,011 8,501 65.3
Other 50,970 33,566 65.9 48,155 27,560 57.2 39,091 27,019 69.1
All other primary cancers6 46,258 30,435 65.8 44,550 25,308 56.8 37,461 25,748 68.7
2014 All first primary cancers5 103,088 69,446 67.4 97,343 62,642 64.4 81,393 58,012 71.3
Breast 13,717 9,664 70.5 12,793 8,637 67.5 13,069 9,770 74.8
Colorectal 8,904 5,956 66.9 8,453 5,377 63.6 7,110 5,051 71.0
Lung 15,242 10,341 67.8 14,548 9,460 65.0 8,874 6,362 71.7
Prostate 13,048 8,278 63.4 12,018 7,145 59.5 12,378 8,410 67.9
Other 52,177 35,207 67.5 49,531 32,023 64.7 39,962 28,419 71.1
All other primary cancers6 46,603 31,635 67.9 44,954 29,269 65.1 37,883 27,019 71.3
2015 All first primary cancers5 103,141 72,039 69.8 97,315 64,601 66.4 82,167 60,019 73.0
Breast 13,921 10,223 73.4 13,031 9,136 70.1 13,303 10,156 76.3
Colorectal 8,756 6,062 69.2 8,309 5,475 65.9 6,984 5,079 72.7
Lung 14,940 10,387 69.5 14,263 9,551 67.0 8,755 6,422 73.4
Prostate 13,551 9,060 66.9 12,583 7,848 62.4 13,017 9,132 70.2
Other 51,973 36,307 69.9 49,129 32,591 66.3 40,108 29,230 72.9
All other primary cancers6 46,345 32,541 70.2 44,779 30,116 67.3 38,086 27,709 72.8
1: All included cancer patients were enrolled in Medicare Part A and Part B and not in HMO in the month of diagnosis.
2: Age 65+ at time of diagnosis.
3: Age 66+ at time of diagnosis.
4: Age 65+ at diagnosis and survived to at least the beginning of the calendar year after diagnosis.
5: Sequence number 00 or 01.
6: Sequence number is 02+.

Part D Claims Data for 2006 not available.

Number of SEER-Medicare Patients with Part D Enrollment by Diagnosis Year 2007-2015, Managed Care Only7
Diagnosis Year Cancer Site Cancer patients8 Enrolled in Part D during the calendar year of diagnosis Cancer patients9 Enrolled in Part D during the calendar year prior to diagnosis Cancer patients10 Enrolled in Part D during the calendar year after diagnosis
N N % N N % N N %
2007 All first primary cancers11 41,141 37,441 91.0 39,209 N/A N/A 32,568 29,626 91.0
Breast 5,244 4,805 91.6 4,906 N/A N/A 5,041 4,657 92.4
Colorectal 4,467 4,099 91.8 4,291 N/A N/A 3,659 3,362 91.9
Lung 5,923 5,416 91.4 5,709 N/A N/A 3,259 2,981 91.5
Prostate 7,864 7,108 90.4 7,366 N/A N/A 7,594 6,842 90.1
Other 17,643 16,013 90.8 16,937 N/A N/A 13,015 11,784 90.5
All other primary cancers12 14,115 12,737 90.2 13,671 N/A N/A 11,329 10,283 90.8
2008 All first primary cancers11 44,120 40,522 91.8 41,811 37,294 89.2 35,147 32,276 91.8
Breast 5,794 5,384 92.9 5,423 4,931 90.9 5,591 5,203 93.1
Colorectal 4,857 4,490 92.4 4,632 4,155 89.7 4,093 3,787 92.5
Lung 6,372 5,866 92.1 6,104 5,470 89.6 3,551 3,277 92.3
Prostate 7,415 6,759 91.2 6,902 6,026 87.3 7,162 6,518 91.0
Other 19,682 18,023 91.6 18,750 16,712 89.1 14,750 13,491 91.5
All other primary cancers12 15,540 14,179 91.2 15,020 13,300 88.5 12,653 11,568 91.4
2009 All first primary cancers11 47,733 43,963 92.1 45,336 40,820 90.0 38,263 34,932 91.3
Breast 6,469 6,000 92.8 6,047 5,535 91.5 6,241 5,757 92.2
Colorectal 4,895 4,549 92.9 4,690 4,252 90.7 4,079 3,773 92.5
Lung 6,821 6,297 92.3 6,526 5,890 90.3 3,897 3,576 91.8
Prostate 8,185 7,460 91.1 7,611 6,702 88.1 7,932 7,135 90.0
Other 21,363 19,657 92.0 20,462 18,441 90.1 16,114 14,691 91.2
All other primary cancers12 17,076 15,633 91.5 16,505 14,766 89.5 13,831 12,504 90.4
2010 All first primary cancers11 48,631 45,162 92.9 46,220 41,843 90.5 39,033 36,308 93.0
Breast 6,428 6,034 93.9 6,020 5,558 92.3 6,180 5,798 93.8
Colorectal 4,620 4,296 93.0 4,426 3,994 90.2 3,864 3,620 93.7
Lung 6,837 6,381 93.3 6,588 6,048 91.8 3,847 3,582 93.1
Prostate 8,333 7,637 91.6 7,761 6,885 88.7 8,062 7,405 91.9
Other 22,413 20,814 92.9 21,425 19,358 90.4 17,080 15,903 93.1
All other primary cancers12 17,652 16,278 92.2 17,084 15,365 89.9 14,410 13,301 92.3
2011 All first primary cancers11 49,882 46,075 92.4 47,292 42,897 90.7 40,698 38,260 94.0
Breast 7,015 6,536 93.2 6,533 6,0750 93.0 6,771 6,430 95.0
Colorectal 4,655 4,352 93.5 4,459 4,075 91.4 3,909 3,693 94.5
Lung 6,606 6,164 93.3 6,358 5,818 91.5 3,931 3,726 94.8
Prostate 8,448 7,697 91.1 7,846 6,914 88.1 8,236 7,644 92.8
Other 23,158 21,326 92.1 22,096 20,015 90.6 17,851 16,767 93.9
All other primary cancers12 18,870 17,206 91.2 18,278 16,393 89.7 15,437 14,400 93.3
2012 All first primary cancers11 51,508 48,700 94.5 48,327 44,284 91.6 41,739 39,867 95.5
Breast 7,340 6,992 95.3 6,760 6,307 93.3 7,067 6,788 96.1
Colorectal 4,796 4,546 94.8 4,501 4,118 91.5 4,027 3,858 95.8
Lung 6,950 6,610 95.1 6,652 6,119 92.0 4,038 3,878 96.0
Prostate 7,642 7,180 94.0 6,969 6,286 90.2 7,364 7,025 95.4
Other 24,780 23,372 94.3 23,445 21,454 91.5 19,243 18,318 95.2
All other primary cancers12 19,991 18,751 93.8 19,158 17,411 90.9 16,294 15,446 94.8
2013 All first primary cancers11 55,712 53,467 96.0 52,378 49,362 94.2 44,999 43,365 96.4
Breast 8,050 7,760 96.4 7,459 7,138 95.7 7,783 7,533 96.8
Colorectal 5,004 4,818 96.3 4,773 4,486 94.0 4,197 4,057 96.7
Lung 7,877 7,569 96.1 7,516 7,067 94.0 4,605 4,444 96.5
Prostate 7,966 7,633 95.8 7,306 6,802 93.1 7,679 7,377 96.1
Other 26,815 25,687 95.8 25,324 23,869 94.3 20,735 19,954 96.2
All other primary cancers12 22,076 21,060 95.4 21,227 19,855 93.5 18,132 17,386 95.9
2014 All first primary cancers11 57,944 56,059 96.7 54,701 52,220 95.5 46,476 44,925 96.7
Breast 8,357 8,110 97.0 7,712 7,463 96.8 8,032 7,807 97.2
Colorectal 5,216 5,077 97.3 4,919 4,680 95.1 4,374 4,263 97.5
Lung 8,094 7,817 96.6 7,769 7,408 95.4 4,711 4,553 96.6
Prostate 7,371 7,113 96.5 6,839 6,444 94.2 7,045 6,773 96.1
Other 28,906 27,942 96.7 27,462 26,225 95.5 22,314 21,529 96.5
All other primary cancers12 22,998 22,150 96.3 22,180 21,011 94.7 18,994 18,291 96.3
2015 All first primary cancers11 61,235 59,324 96.9 58,086 55,915 96.3 49,320 47,858 97.0
Breast 8,947 8,736 97.6 8,392 8,190 97.6 8,644 8,451 97.8
Colorectal 5,106 4,961 97.2 4,861 4,691 96.5 4,181 4,063 97.2
Lung 8,270 8,012 96.9 7,974 7,679 96.3 4,868 4,717 96.9
Prostate 8,124 7,852 96.7 7,578 7,194 94.9 7,787 7,532 96.7
Other 30,788 29,763 96.7 29,281 28,161 96.2 23,840 23,095 96.9
All other primary cancers12 23,686 22,840 96.4 22,917 21,988 95.9 19,611 18,971 96.7
7: All included cancer patients were enrolled in Medicare Part A and Part B and in HMO during the year of interest.
8: Age 65+ at time of diagnosis.
9: Age 66+ at time of diagnosis.
10: Age 65+ at diagnosis and survived to at least the beginning of the calendar year after diagnosis.
11: Sequence number 00 or 01.
12: Sequence number is 02+.

Part D Claims Data for 2006 not available.

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Beneficiaries Included in the 5% Non-cancer Sample

The following tables list the number of persons appearing in the SEER-Medicare data from the 5% Non-cancer Medicare Beneficiary Sample who are enrolled in Medicare Part D as well as the total number of persons who were eligible to enroll from the sample. The tables were generated separately for patients not enrolled in Managed Care and for those enrolled in Managed Care only. The data are displayed by year, beginning in 2007.

Number of Medicare beneficiaries included in the SEER-Medicare 5% non-cancer sample by Part D enrollment status and calendar year13
Calendar Year Total Enrolled in Part D
N N %
2007 313,946 145,139 46.2%
2008 318,542 149,148 46.8%
2009 321,749 151,219 47.0%
2010 328,408 155,642 47.4%
2011 338,259 163,155 48.2%
2012 349,324 178,712 51.2%
2013 356,250 201,908 56.7%
2014 362,218 209,567 57.9%
2015 366,535 220,208 60.1%
2016 349,751 218,527 62.5%

13: To be included individuals had to be eligible for Medicare entitlement, had to be 65+ years during the calendar year, could not be enrolled in an HMO during the calendar year and could not be known to have a prior history of cancer; individuals were excluded if sumstat=2.

Number of Medicare beneficiaries included in the SEER-Medicare 5% non-cancer sample by Part D enrollment status and calendar year, Managed Care Only14
Calendar Year Total Enrolled in Part D
N N %
2007 97,195 89,081 91.7%
2008 107,125 98,903 92.3%
2009 117,501 108,575 92.4%
2010 125,468 117,166 93.4%
2011 135,790 126,286 93.0%
2012 148,298 140,663 94.9%
2013 163,624 157,740 96.4%
2014 179,202 173,965 97.1%
2015 193,910 188,371 97.1%
2016 198,446 193,439 97.5%

14: To be included individuals had to be eligible for Medicare entitlement, had to be 65+ years during the calendar year, had to be enrolled in an HMO during the calendar year and could not be known to have a prior history of cancer; individuals were excluded if sumstat=2.

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