Table A.1a. Medicare beneficiary counts,* 2010–2019
Medicare beneficiary counts* by year	2019	2018	2017	2016	2015
TOTAL	64,430,729	62,930,784	61,405,844	59,818,481	58,294,195
Coverage**		2018	2017	2016	2015
Full or nearly full fee-for-service (FFS)	31,860,990	32,184,841	32,483,529	32,607,998	32,179,757
Non-FFS	32,569,739	30,745,943	28,922,315	27,210,483	26,114,438
Medicare status
Aged	55,493,463	53,805,652	52,163,646	50,507,792	48,966,156
Disabled	8,937,266	9,125,132	9,242,198	9,310,689	9,328,039
End stage renal disease (ESRD)		2018	2017	2016	2015
Yes	522,206	610,012	595,177	582,016	568,695
No	63,908,523	62,320,772	60,810,667	59,236,465	57,725,500
Sex†		2018	2017	2016	2015
Male	29,504,938	28,798,782	28,076,972	27,323,987	26,595,919
Female	34,925,782	34,131,993	33,328,860	32,494,483	31,698,265
Race‡
White	47,273,109	46,402,879	45,524,762	44,620,451	43,737,674
Black	6,778,117	6,600,755	6,420,603	6,235,631	6,049,824
Hispanic	6,132,258	5,910,676	5,683,153	5,411,541	5,241,393
Asian/Pacific Islander	2,246,931	2,130,863	2,023,348	1,893,970	1,816,112
American Indian/Native American	279,423	283,090	283,586	272,930	265,231
Other/Unknown	1,720,891	1,602,521	1,470,392	1,383,958	1,183,961
Age▲
<65	8,937,266	9,125,132	9,242,198	9,310,689	9,328,039
65-74	31,926,362	30,808,066	29,865,219	28,879,406	27,772,183
75-84	16,485,764	15,945,293	15,263,557	14,664,298	14,285,623
85+	7,081,337	7,052,293	7,034,870	6,964,088	6,908,350
* Includes all Medicare beneficiaries who were eligible for or enrolled in Medicare on or after January 1, YYYY.
** Full or nearly FFS indicates the beneficiary had 11 or 12 months of both Part A and Part B FFS coverage, or for persons who died during the year, from January 1 until date of death. Non-FFS indicates the beneficiary had less than 11 months of Part A and Part B FFS coverage and includes people with one month or more of health maintenance organization (HMO) coverage. Some FFS beneficiaries are participants in case or disease management demonstration projects (effective 2005 forward). The Chronic Conditions Warehouse (CCW) team does not consider these beneficiaries to have HMO coverage during these months.
†  Where category totals do not sum to the total sample, there may be a small number of unknowns.
‡  The CCW team uses the Research Triangle Institute (RTI) race categories to calculate the race variable.
▲ The CCW team calculates age based on the age of the Medicare beneficiary as of December 31, YYYY. If the beneficiary expired, the CCW team calculates the age based on the age at the time of death.