Who sells Medicare Advantage in 2027

UnitedHealth Group, Inc. had the most members in Medicare Advantage plans in September 2026, 7,666,005; the 20 largest parent companies, counting all their brands, held 25,796,977, according to CMS enrollment for September 2026. Humana Inc. offers the most Medicare Advantage plans for 2027 (802), then UnitedHealth Group, Inc. (784), Devoted Health, Inc. (725), CVS Health Corporation (654), per the CMS landscape file for 2027.

Which companies have the most members?

Medicare Advantage members by parent company, all brands, September 2026

UnitedHealth Group, Inc.7,666,005

Humana Inc.6,463,275

CVS Health Corporation2,821,642

Elevance Health, Inc.1,515,713

Kaiser Foundation Health Plan, Inc.1,489,853

Centene Corporation914,774

Health Care Service Corporation787,068

Devoted Health, Inc.532,675

SCAN Group458,877

Healthfirst, Inc.372,711

MHH Healthcare, L.P.346,631

Aware Integrated, Inc.334,540

Source: CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11); CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision).

How many plans does each company offer?

The 20 largest parent companies by members, sorted by 2027 plans; Medicare Advantage plans only; stand-alone drug plans are on the Part D page
Parent company (all brands)	Plans 2026	Plans 2027	Members, Sept. 2026
Humana Inc.	833	802	6,463,275
UnitedHealth Group, Inc.	806	784	7,666,005
Devoted Health, Inc.	416	725	532,675
CVS Health Corporation	642	654	2,821,642
Elevance Health, Inc.	320	265	1,515,713
Centene Corporation	295	204	914,774
Health Care Service Corporation	231	154	787,068
Kaiser Foundation Health Plan, Inc.	126	117	1,489,853
SCAN Group	74	85	458,877
Alignment Healthcare USA, LLC	68	77	297,335
Highmark Health	66	59	319,476
Medica Holding Company	43	40	263,621
Molina Healthcare, Inc.	62	32	222,594
Lifetime Healthcare, Inc.	28	27	295,725
MHH Healthcare, L.P.	24	24	346,631
BlueCross BlueShield of Tennessee	21	23	216,450
UPMC Health System	17	20	220,812
Aware Integrated, Inc.	16	13	334,540
Corewell Health	12	12	257,200
Healthfirst, Inc.	8	8	372,711

Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision); CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11).