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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 2007-20111
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 114,192 56,422 49.4 108,584 50,142 46.2 89,758 46,716 52.0
Breast 14,013 7,461 53.2 13,268 6,649 50.1 13,288 7,637 57.5
Colorectal 12,081 6,232 51.6 11,568 5,580 48.2 9,857 5,396 54.7
Lung 17,501 9,064 51.8 16,702 8,154 48.8 9,752 5,300 54.3
Prostate 20,676 8,876 42.9 19,318 7,551 39.1 19,876 9,256 46.6
Other 49,921 24,789 49.7 47,728 22,208 46.5 36,985 19,127 51.7
All other primary cancers6 41,750 19,949 47.8 40,344 18,026 44.7 33,180 16,779 50.6
2008 All first primary cancers5 110,951 56,244 50.7 105,110 50,728 48.3 86,898 45,611 52.5
Breast 13,916 7,427 53.4 13,057 6,678 51.1 13,221 7,410 56.0
Colorectal 11,571 6,186 53.5 11,067 5,592 50.5 9,295 5,136 55.3
Lung 17,182 9,234 53.7 16,339 8,388 51.3 9,515 5,346 56.2
Prostate 18,652 8,166 43.8 17,319 7,109 41.0 17,930 8,391 46.8
Other 49,630 25,231 50.8 47,328 22,961 48.5 36,937 19,328 52.3
All other primary cancers6 41,796 20,242 48.4 40,342 18,665 46.3 33,499 16,893 50.4
2009 All first primary cancers5 107,416 55,418 51.6 102,069 50,674 49.6 84,623 45,592 53.9
Breast 13,727 7,487 54.5 12,946 6,857 53.0 13,084 7,555 57.7
Colorectal 10,749 5,686 52.9 10,302 5,252 51.0 8,652 4,825 55.8
Lung 16,701 9,056 54.2 15,976 8,401 52.6 9,376 5,311 56.6
Prostate 17,493 8,047 46.0 16,287 7,071 43.4 16,846 8,274 49.1
Other 48,746 25,142 51.6 46,558 23,093 49.6 36,665 19,627 53.5
All other primary cancers6 42,487 21,201 49.9 41,125 19,851 48.3 34,045 17,831 52.4
2010 All first primary cancers5 105,256 55,214 52.5 100,239 50,822 50.7 82,751 45,653 55.2
Breast 13,392 7,376 55.1 12,635 6,778 53.6 12,803 7,461 58.3
Colorectal 10,043 5,472 54.5 9,671 5,105 52.8 8,108 4,688 57.8
Lung 16,048 8,777 54.7 15,415 8,155 52.9 8,939 5,171 57.8
Prostate 16,651 7,725 46.4 15,505 6,887 44.4 15,957 8,001 50.1
Other 49,122 25,864 52.7 47,013 23,897 50.8 36,944 20,332 55.0
All other primary cancers6 43,158 22,039 51.1 41,862 20,796 49.7 34,642 18,535 53.5
2011 All first primary cancers5 102,582 55,428 54.0 97,489 50,386 51.7 80,872 48,494 60.0
Breast 13,460 7,629 56.7 12,662 6,896 54.5 12,814 8,061 62.9
Colorectal 9,647 5,447 56.5 9,284 5,025 54.1 7,751 4,860 62.7
Lung 15,338 8,501 55.4 14,675 7,829 53.3 8,653 5,321 61.5
Prostate 16,367 7,968 48.7 15,275 7,015 45.9 15,725 8,690 55.3
Other 47,770 25,883 54.2 45,593 23,621 51.8 35,929 21,562 60.0
All other primary cancers6 42,642 22,220 52.1 41,304 20,608 49.9 34,271 19,808 57.8
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 2007-2011, 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 40,894 37,225 91.0 38,976 34,677 89.0 32,322 29,406 91.0
Breast 5,233 4,794 91.6 4,895 4,469 91.3 5,029 4,645 92.4
Colorectal 4,451 4,084 91.8 4,276 3,814 89.2 3,644 3,348 91.9
Lung 5,909 5,408 91.5 5,696 5,085 89.3 3,247 2,971 91.5
Prostate 7,782 7,033 90.4 7,291 6,379 87.5 7,510 6,769 90.1
Other 17,519 15,906 90.8 16,818 14,930 88.8 12,892 11,673 90.5
All other primary cancers12 13,919 12,559 90.2 13,483 11,844 87.8 11,142 10,112 90.8
2008 All first primary cancers11 43,725 40,153 91.8 41,444 36,968 89.2 34,760 31,912 91.8
Breast 5,769 5,359 92.9 5,400 4,910 90.9 5,566 5,178 93.0
Colorectal 4,842 4,478 92.5 4,620 4,144 89.7 4,082 3,776 92.5
Lung 6,354 5,846 92.0 6,086 5,450 89.5 3,530 3,255 92.2
Prostate 7,313 6,663 91.1 6,805 5,938 87.3 7,060 6,423 91.0
Other 19,447 17,807 91.6 18,533 16,526 89.2 14,522 13,280 91.4
All other primary cancers12 15,331 13,981 91.2 14,818 13,109 88.5 12,454 11,376 91.3
2009 All first primary cancers11 47,172 43,431 92.1 44,816 40,348 90.0 37,713 34,418 91.3
Breast 6,446 5,978 92.7 6,026 5,519 91.6 6,219 5,737 92.2
Colorectal 4,884 4,538 92.9 4,680 4,245 90.7 4,069 3,763 92.5
Lung 6,783 6,260 92.3 6,493 5,857 90.2 3,865 3,543 91.7
Prostate 8,027 7,313 91.1 7,464 6,572 88.0 7,773 6,987 89.9
Other 21,032 19,342 92.0 20,153 18,155 90.1 15,787 14,388 91.1
All other primary cancers12 16,747 15,315 91.4 16,196 14,471 89.3 13,522 12,210 90.3
2010 All first primary cancers11 47,468 44,060 92.8 45,219 40,882 90.4 37,907 35,237 93.0
Breast 6,340 5,949 93.8 5,947 5,486 92.2 6,092 5,713 93.8
Colorectal 4,555 4,233 92.9 4,370 3,938 90.1 3,802 3,560 93.6
Lung 6,749 6,296 93.3 6,511 5,969 91.7 3,768 3,508 93.1
Prostate 8,034 7,351 91.5 7,516 6,646 88.4 7,765 7,122 91.7
Other 21,790 20,231 92.8 20,875 18,843 90.3 16,480 15,334 93.0
All other primary cancers12 17,172 15,839 92.2 16,629 14,932 89.8 13,945 12,871 92.3
2011 All first primary cancers11 47,863 44,196 92.3 45,540 41,264 90.6 38,737 36,395 94.0
Breast 6,859 6,393 93.2 6,415 5,959 92.9 6,620 6,290 95.0
Colorectal 4,548 4,249 93.4 4,365 3,992 91.5 3,807 3,597 94.5
Lung 6,425 5,995 93.3 6,188 5,659 91.5 3,765 3,564 94.7
Prostate 7,959 7,238 90.9 7,443 6,531 87.7 7,745 7,179 92.7
Other 22,072 20,321 92.1 21,129 19,123 90.5 16,800 15,765 93.8
All other primary cancers12 18,093 16,477 91.1 17,550 15,711 89.5 14,692 13,689 93.2
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 426,102 244,231 57.3%
2008 441,005 259,015 58.7%
2009 454,796 271,513 59.7%
2010 468,958 284,743 60.7%
2011 486,328 302,214 62.1%
2012 474,901 316,729 66.7%

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 or keepflg=0.

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 93,331 101,833 91.7%
2008 103,668 112,270 92.3%
2009 113,934 123,314 92.4%
2010 123,087 131,760 93.4%
2011 132,523 142,504 93.0%
2012 139,578 147,133 94.9%

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 or keepflg=0.

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Last Modified: 05 Nov 2014