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ACOs remain a mainstay strategy for shifting to value-based care
Accountable Care Organizations are being touted as one of the top strategies for achieving value-based care. Currently, much of the shift to value-based care is being led by federal agencies responsible for Medicare and Medicaid reimbursement. The Department of Health and Human Services has set a goal of tying 30 percent of traditional, or fee-for-service, Medicare payments to quality or value through alternative payment models, such as ACOs or bundled payment arrangements, by the end of 2016, and tying 50 percent of payments to these models by the end of 2018.

Hundreds of ACOs are emerging. In this list, we highlight some of the nation’s biggest ACOs, ranked by number of members.
1 BannerHealth-CROP.png
Banner Health Network
Phoenix, Ariz.
Number of members: 460,000
https://www.bannerhealthnetwork.com/
2 Advocate-Web-CROP.png
Advocate Physician Partners
Downers Grove, Ill.
Number of members: 423,350
http://www.advocatehealth.com/advocatephysicianpartners
3 Ochsner-CROP.png
Ochsner Accountable Care Network, LLC
Jefferson, La.
Number of members: 420,244
https://www.ochsner.org/ohn/
4 UnityPoint-CROP.png
UnityPoint Health
West Des Moines, Iowa
Number of members: 340,000
https://www.unitypoint.org/default.aspx
5 University Hospital-CROP.png
The University Hospitals Accountable Care Organization
6 Partners-CROP.png
Partners Healthcare
Needham, Mass.
Number of members: 245,000
http://www.partners.org/For-Patients/ACO/
7 MissionPoint-CROP.png
MissionPoint Health Partners
Nashville, Tenn.
Number of members: 233,310
http://missionpointhealth.org/
8 Integrated Health Network-CROP.png
Integrated Health Network of Wisconsin
Brookfield, Wis.
Number of members: 215,000
https://www.ihnwi.com/
9 MaineHealth-CROP.png
MaineHealth Accountable Care Organization
Portland, Maine
Number of members: 178,000
https://www.mainehealth.org/mhaco
10 New England-CROP.png
NEQCA Accountable Care
Braintree, Mass.
Number of members: 170,000
http://neqca.org/
11 MemHermann-CROP.png
Memorial Hermann Accountable Care Organization
Houston, Texas
Number of members: 140,911
http://www.memorialhermann.org/aco/
12 Deleware-Valley-CROP.png
Delaware Valley ACO
Villanova, Pa.
Number of members: 128,510
http://dvaco.org/
13 FamilyHealth-CROP.png
FamilyCare Health
Portland, Ore.
Number of members: 125,000
https://www.familycareinc.org/
14 UHCoordCare-CROP.png
University Hospitals Coordinated Care Organization
15 NYUPN-CROP.png
NYUPN Clinically Integrated Network, LLC
New York
Number of members: 118,000
http://www.nyupn.org/
16 OneCareVermont-CROP.png
OneCare Vermont Accountable Care Organization, LLC
Colchester, Vt.
Number of members: 112,958
https://www.onecarevt.org/
17 RochesterRegHealth-CROP.png
Rochester General Health System ACO
Rochester, N.Y.
Number of members: 110,000
https://www.rochesterregional.org/
18 POM-ACO-CROP.png
Physician Organization of Michigan ACO
Ann Arbor, Mich.
Number of members: 104,508
http://pom-aco.com/
19 Bronson-CROP.png
Bronson Battle Creek Health System
Kalamazoo, Battle Creek, Mich.
Number of members: 100,000
https://www.bronsonhealth.com/
21 HenryFord-CROP.png
Henry Ford Physician Network
22 Allegheny-CROP.png
Allegheny Health Network
Pittsburgh
Number of members: 90,000
https://www.ahn.org/
23 Heritage-CROP.png
Heritage Pioneer ACO
Northridge, Calif.
Number of members: 90,000
http://www.heritagecaliforniaaco.com/?p=home
24 TexasHealth-CROP.png
Texas Health Resources
Arlington, Texas
Number of members; 88,000
https://www.texashealth.org/Pages/Home.aspx
25 PaloAlto-CROP.png
Palo Alto Medical Foundation
Palo Alto, Calif.
Number of members: 84,000
http://www.pamf.org/
26 Triad-CROP.png
Triad HealthCare Network
Greensboro, N.C.
Number of members: 81,000
http://www.triadhealthcarenetwork.com/
27 WilmingtonHealth-CROP.png
Wilmington Health
Wilmington, N.C.
Number of members: 80,000
https://www.wilmingtonhealth.com/
28 AtlanticACO-CROP.png
Atlantic Accountable Care Organization
Morristown, N.J.
Number of members: 74,000
http://www.atlanticaco.org/
29 ACOofTexas-CROP.png
Accountable Care Organization of Texas Inc.
Houston
Number of members: 70,000
http://www.accoftexas.com/
30 Franciscan-CROP.png
Franciscan Alliance ACO
Lafayette, Ind.
Number of members: 60,000
http://www.franciscanalliance.org/about/aco/pages/default.aspx