Medicare Advantage enrollment, month by month · May 2026

Medicare Advantage enrollment in May 2026

35,752,005 people were in Medicare Advantage plans in May 2026, +0.2% on the month; the fifteen largest parent organizations had 83.4%.

35,752,005
Medicare Advantage enrollment
+0.2%
change on the month
168
parent organizations
25,271,759
stand-alone drug plan enrollment

The largest organizations

Parent organizationMedicare Advantage enrollmentShareChange on the monthDrug plan (PDP) enrollmentContracts
Unitedhealth Group, Inc.9,315,21526.1%−12,677 (−0.1%)3,759,62968
Humana Inc.7,172,29320.1%+35,361 (+0.5%)3,756,01439
Cvs Health Corporation4,132,67111.6%+11,804 (+0.3%)3,887,23143
Kaiser Foundation Health Plan, Inc.2,054,7215.7%+5,256 (+0.3%)48,02913
Elevance Health, Inc.1,899,1685.3%−1,933 (−0.1%)71,78648
Centene Corporation948,2852.7%−9,644 (−1.0%)8,879,60868
Health Care Service Corporation890,7312.5%+5,469 (+0.6%)2,756,28928
Blue Cross Blue Shield of Michigan Mutual Ins. Co.676,4371.9%−823 (−0.1%)24,7329
Devoted Health, Inc.500,9191.4%+12,981 (+2.7%)042
Scan Group447,7461.3%+5,457 (+1.2%)010
Highmark Health424,3461.2%+28 (+0.0%)20,90311
Mhh Healthcare, L.P.374,1791.0%+1,108 (+0.3%)02
Healthfirst, Inc.369,4991.0%+761 (+0.2%)04
Lifetime Healthcare, Inc.329,9210.9%+986 (+0.3%)5,0556
Aware Integrated, Inc.291,9690.8%+445 (+0.2%)03
Alignment Healthcare USA, LLC289,3950.8%+4,243 (+1.5%)08
Corewell Health284,9580.8%+425 (+0.1%)164
Guidewell Mutual Holding Corporation260,6560.7%−99 (−0.0%)47,3646
Upmc Health System226,7540.6%−54 (−0.0%)2,1416
Molina Healthcare, Inc.225,0230.6%−3,446 (−1.5%)021
Bluecross Blueshield of Tennessee217,8130.6%+280 (+0.1%)02
Curacor Solutions Corp.182,2720.5%+2,027 (+1.1%)30,5445
Clover Health Holdings, Inc.156,3900.4%+594 (+0.4%)02
Independence Health Group, Inc.150,3680.4%−620 (−0.4%)6,05811
Point32health, Inc.148,3990.4%−107 (−0.1%)06

Biggest movers on the month

Among organizations with 10,000 or more enrollees, the largest changes from the month before.

Parent organizationMedicare Advantage enrollmentShareChange on the monthDrug plan (PDP) enrollmentContracts
Humana Inc.7,172,29320.1%+35,361 (+0.5%)3,756,01439
Devoted Health, Inc.500,9191.4%+12,981 (+2.7%)042
Unitedhealth Group, Inc.9,315,21526.1%−12,677 (−0.1%)3,759,62968
Cvs Health Corporation4,132,67111.6%+11,804 (+0.3%)3,887,23143
Centene Corporation948,2852.7%−9,644 (−1.0%)8,879,60868
Health Care Service Corporation890,7312.5%+5,469 (+0.6%)2,756,28928
Scan Group447,7461.3%+5,457 (+1.2%)010
Kaiser Foundation Health Plan, Inc.2,054,7215.7%+5,256 (+0.3%)48,02913
Alignment Healthcare USA, LLC289,3950.8%+4,243 (+1.5%)08
Molina Healthcare, Inc.225,0230.6%−3,446 (−1.5%)021

Every organization with Medicare Advantage enrollment in May 2026

All 168.

Parent organizationMedicare Advantage enrollmentShareChange on the monthDrug plan (PDP) enrollmentContracts
Unitedhealth Group, Inc.9,315,21526.1%−12,677 (−0.1%)3,759,62968
Humana Inc.7,172,29320.1%+35,361 (+0.5%)3,756,01439
Cvs Health Corporation4,132,67111.6%+11,804 (+0.3%)3,887,23143
Kaiser Foundation Health Plan, Inc.2,054,7215.7%+5,256 (+0.3%)48,02913
Elevance Health, Inc.1,899,1685.3%−1,933 (−0.1%)71,78648
Centene Corporation948,2852.7%−9,644 (−1.0%)8,879,60868
Health Care Service Corporation890,7312.5%+5,469 (+0.6%)2,756,28928
Blue Cross Blue Shield of Michigan Mutual Ins. Co.676,4371.9%−823 (−0.1%)24,7329
Devoted Health, Inc.500,9191.4%+12,981 (+2.7%)042
Scan Group447,7461.3%+5,457 (+1.2%)010
Highmark Health424,3461.2%+28 (+0.0%)20,90311
Mhh Healthcare, L.P.374,1791.0%+1,108 (+0.3%)02
Healthfirst, Inc.369,4991.0%+761 (+0.2%)04
Lifetime Healthcare, Inc.329,9210.9%+986 (+0.3%)5,0556
Aware Integrated, Inc.291,9690.8%+445 (+0.2%)03
Alignment Healthcare USA, LLC289,3950.8%+4,243 (+1.5%)08
Corewell Health284,9580.8%+425 (+0.1%)164
Guidewell Mutual Holding Corporation260,6560.7%−99 (−0.0%)47,3646
Upmc Health System226,7540.6%−54 (−0.0%)2,1416
Molina Healthcare, Inc.225,0230.6%−3,446 (−1.5%)021
Bluecross Blueshield of Tennessee217,8130.6%+280 (+0.1%)02
Curacor Solutions Corp.182,2720.5%+2,027 (+1.1%)30,5445
Clover Health Holdings, Inc.156,3900.4%+594 (+0.4%)02
Independence Health Group, Inc.150,3680.4%−620 (−0.4%)6,05811
Point32health, Inc.148,3990.4%−107 (−0.1%)06
Medica Holding Company138,2730.4%+350 (+0.3%)101,6077
Henry Ford Health System131,3640.4%+622 (+0.5%)04
Network Health, Inc.130,6640.4%+905 (+0.7%)03
California Physicians' Service124,1640.3%−223 (−0.2%)44,6155
Risant Health, Inc.119,1960.3%+116 (+0.1%)06
Bluecross Blueshield of Alabama118,3010.3%+85 (+0.1%)31,0893
Trinity Health Corporation101,0020.3%+171 (+0.2%)019
Sanford Health92,8290.3%+96 (+0.1%)07
Medical Mutual of Ohio90,4010.3%+74 (+0.1%)04
Blue Cross and Blue Shield of Massachusetts, Inc.86,6180.2%+37 (+0.0%)02
Caresource76,9080.2%+416 (+0.5%)05
Horizon Mutual Holdings, Inc76,7960.2%+406 (+0.5%)36,5103
Blue Cross & Blue Shield of Rhode Island76,0980.2%−107 (−0.1%)02
Cambia Health Solutions, Inc.72,6530.2%−352 (−0.5%)1,3709
Martin's Point Health Care, Inc.66,3670.2%−42 (−0.1%)02
Intermountain Health Care, Inc.66,2750.2%+144 (+0.2%)01
Visiting Nurse Service of New York64,8170.2%+2,417 (+3.9%)01
Providence St Joseph Health64,5390.2%−7 (−0.0%)01
Lumeris Group Holdings Corporation61,4210.2%+74 (+0.1%)02
Mvp Health Care, Inc.59,3470.2%+146 (+0.2%)2373
Healthpartners, Inc.58,9320.2%+211 (+0.4%)2,7185
Louisiana Health Service & Indemnity Company58,0870.2%+71 (+0.1%)02
Allina Health and Aetna Insurance Holding Company55,8830.2%+520 (+0.9%)01
Pacificsource55,3980.2%−125 (−0.2%)03
Carefirst, Inc.54,7150.2%+715 (+1.3%)5543
Presbyterian Healthcare Services53,9350.2%−91 (−0.2%)01
Triton Health Systems, L.L.C.52,2630.1%−134 (−0.3%)01
Imperial Health Plan of California51,3460.1%+599 (+1.2%)01
Capital Blue Cross51,0020.1%−51 (−0.1%)1,2113
Universal Health Services, Inc.50,0320.1%+527 (+1.1%)03
Clever Care Health Plan, Inc.49,0190.1%+1,311 (+2.7%)01
Blue Cross Blue Shield of Arizona48,9040.1%−3,150 (−6.1%)02
Bluecross Blueshield of South Carolina (Bcbssc)48,3670.1%+515 (+1.1%)14,6032
Astiva Health Holdings Incorporated47,8550.1%+1,803 (+3.9%)01
Baylor Scott & White Health47,2710.1%+389 (+0.8%)02
Independent Health Association, Inc.45,6280.1%−103 (−0.2%)7,2603
Zing Health Consolidator, Inc41,0930.1%+1,360 (+3.4%)02
Hawaii Medical Service Association40,3230.1%+274 (+0.7%)1,4913
Lmc Family Holdings, LLC40,2230.1%+187 (+0.5%)01
Inland Empire Health Plan38,4300.1%−179 (−0.5%)01
St Francis Health System & St John Health System38,0220.1%−8 (−0.0%)01
Emblemhealth, Inc.37,8570.1%−27 (−0.1%)104,4844
Health First Shared Services, Inc.36,9360.1%+108 (+0.3%)01
Gemstone Holdings, Inc.36,2220.1%−78 (−0.2%)02
General Catalyst Group Management Holdings LP34,8600.1%+57 (+0.2%)01
Atrio Health Plans34,0550.1%−1,007 (−2.9%)04
Local Initiative Health Authority for La County30,9200.1%−185 (−0.6%)01
Thomas Jefferson University30,7170.1%+363 (+1.2%)03
Blue Cross Blue Shield of Nebraska28,6470.1%−48 (−0.2%)02
Elderplan, Inc.26,3230.1%+344 (+1.3%)01
Doctors Healthcare Plans, Inc.25,1670.1%+406 (+1.6%)01
Fallon Community Health Plan, Inc.21,8230.1%+22 (+0.1%)04
University of Wisconsin Hospitals and Clincs Autho21,3920.1%+17 (+0.1%)02
Baycare Health System, Inc.20,9540.1%+180 (+0.9%)01
Athena Healthcare Holdings, LLC20,9250.1%+306 (+1.5%)01
Ultimate Healthcare Holdings, LLC20,4570.1%+691 (+3.5%)01
Mass General Brigham Incorporated20,3610.1%+380 (+1.9%)05
Sharp Healthcare19,4380.1%+171 (+0.9%)01
Orange County Health Authority18,7100.1%+11 (+0.1%)02
Banner Health18,3620.1%+499 (+2.8%)02
Usable Mutual Insurance Company15,1340.0%+278 (+1.9%)19,5794
Johns Hopkins Healthcare LLC15,1330.0%−17 (−0.1%)03
Memorial Hermann Health System14,7360.0%+66 (+0.4%)01
Baystate Health, Inc.14,7130.0%+46 (+0.3%)02
Aultman Health Foundation14,6220.0%−10 (−0.1%)01
The Health Plan of West Virginia, Inc.14,1300.0%+8 (+0.1%)02
Lifebridge Health, Inc.13,4930.0%+185 (+1.4%)01
Careoregon, Inc.13,4250.0%−223 (−1.6%)01
New York City Health and Hospitals Corporation13,2700.0%+171 (+1.3%)01
West Virginia United Health System, Inc.12,3760.0%+105 (+0.9%)01
Santa Clara County Health Authority11,8390.0%+48 (+0.4%)01
The Regents of the University of California11,5910.0%+168 (+1.5%)01
Neighborhood Health Plan of Rhode Island11,3530.0%−43 (−0.4%)02
Mercy Care10,8340.0%+17 (+0.2%)01
Village Care of New York, Inc.10,7130.0%+226 (+2.2%)01
Siho Holding, Inc.10,6570.0%+98 (+0.9%)02
Community Health Group10,3530.0%+134 (+1.3%)02
Blue Cross Blue Shield of Kansas10,2690.0%−28 (−0.3%)147,8342
Rifkin Managed Care Holding, LLC10,2540.0%+14 (+0.1%)08
Sentara Health Care (Shc)10,1190.0%+52 (+0.5%)03
Eternal Health of Delaware, Inc.9,1810.0%+469 (+5.4%)03
Community Health Plan of Washington8,9940.0%−60 (−0.7%)01
Christus Health8,8880.0%−1 (−0.0%)01
Health Plan of San Mateo8,5220.0%+5 (+0.1%)01
Montage Health8,3690.0%+18 (+0.2%)01
Mitchell Family Office8,2590.0%+58 (+0.7%)012
Central Mass Health Holding LLC7,4860.0%+119 (+1.6%)02
Gold Kidney Health Plan6,8290.0%+492 (+7.8%)02
Champion Health Plans-USA, LLC.6,6900.0%+619 (+10.2%)02
Longevity Health Founders, LLC6,6440.0%+17 (+0.3%)07
Aspirus, Inc.6,0670.0%−52 (−0.8%)01
Group 10015,8240.0%−281 (−4.6%)05
Chinese Hospital Association5,7760.0%−15 (−0.3%)01
Bmc Health System, Inc.5,1680.0%+28 (+0.5%)02
Denver Health and Hospital Authority5,0930.0%+20 (+0.4%)01
Coxhealth4,3850.0%−5 (−0.1%)01
Verda Healthcare, Inc.4,0320.0%+8 (+0.2%)02
Snp Holdings, LLC3,9420.0%+14 (+0.4%)02
Unico Services, Inc.3,7380.0%+46 (+1.2%)02
Associated Care Ventures, Inc.3,7000.0%−81 (−2.1%)01
Curana Health Holdings, LLC3,4740.0%+172 (+5.2%)05
Dlp Marquette Health Plan, LLC3,1180.0%−3 (−0.1%)01
Liberty Healthcare Insurance3,0380.0%+7 (+0.2%)01
Regency Isnp Holdings LLC2,7970.0%+22 (+0.8%)01
Select Founders, LLC2,7780.0%+82 (+3.0%)01
Primewest Rural Mn Health Care Access Initiative2,7340.0%−47 (−1.7%)02
Alohacare2,5230.0%+36 (+1.4%)01
Allcare Health, Inc.2,4680.0%−7 (−0.3%)01
Mclaren Health Care Corporation2,4110.0%−30 (−1.2%)01
The Schroer Group, Inc.2,3350.0%+13 (+0.6%)01
Hamaspik of Rockland County, Inc.1,9870.0%+85 (+4.5%)01
Perennial Consortium, LLC1,8580.0%+15 (+0.8%)02
El Paso County Hospital District1,7150.0%+56 (+3.4%)01
Troy Holdings, Inc.1,7130.0%−11 (−0.6%)01
South Country Health Alliance1,4530.0%−20 (−1.4%)02
Samaritan Health Services, Inc.1,4380.0%−15 (−1.0%)01
Independent Living Systems, LLC1,3780.0%−29 (−2.1%)01
Missouri Healthcare Advisors, LLC1,3300.0%+11 (+0.8%)01
Group Health Cooperative of Eau Claire1,3040.0%+25 (+2.0%)01
Fenyx Health Holdings, Inc.1,2270.0%+83 (+7.3%)01
Brightspring Health Services, Inc.1,0580.0%+31 (+3.0%)01
Harris County Hospital District1,0440.0%+20 (+2.0%)01
First Sacramento Capital Funding LLC9940.0%−29 (−2.8%)01
Kern Health Systems (Khs)9710.0%+76 (+8.5%)01
Marquis Companies I, Inc.9460.0%+12 (+1.3%)01
Kansas Superior Select8720.0%+8 (+0.9%)01
San Francisco Health Authority7700.0%+162 (+26.6%)01
Bexar County Hospital District7030.0%+33 (+4.9%)01
Santa Cruz Monterey Merced San Benito Mariposa Man6880.0%+72 (+11.7%)01
Visiting Nurse Association of Central New York6420.0%+13 (+2.1%)01
Aids Healthcare Foundation6040.0%−6 (−1.0%)01
Ventura County Medi-Cal Managed Care Commission5550.0%+44 (+8.6%)01
Isnp Holdings, LLC5100.0%+1 (+0.2%)01
Singh Holdings LLC4880.0%−16 (−3.2%)01
Santa Barbara San Luis Obispo Regional Health Auth3720.0%+65 (+21.2%)01
Imperial County Local Health Authority3570.0%+56 (+18.6%)01
Itasca County3290.0%−2 (−0.6%)01
Contra Costa Health Services3240.0%+24 (+8.0%)01
Community Care, Inc.3110.0%+2 (+0.6%)02
San Joaquin County Health Commission2840.0%+51 (+21.9%)01
Alameda Alliance for Health2360.0%+16 (+7.3%)01
Chapters Carenu Inc2150.0%−12 (−5.3%)01
Elite Health Systems, Inc.370.0%0 (+0.0%)01

What the data can and cannot say

  • Enrollment is as CMS counts it for each contract in the month, grouped by the parent organization CMS records. CMS suppresses counts under eleven in this file, so totals run slightly below its summary report.
  • Medicare Advantage here is coordinated care plans (local and regional), private fee-for-service and medical savings account plans. Stand-alone prescription drug plans are shown separately; PACE, cost and HCPP plans, which are other Medicare health plans, are left out.
  • Month-to-month changes are largest at the start of a plan year, when the annual enrollment period takes effect.

Sources: CMS, Monthly Enrollment by Contract. Figures are as filed; none is estimated. Not investment advice.