Gesundheitswesen 2022; 84(03): e12-e24
DOI: 10.1055/a-1718-3332
Originalarbeit

10 Jahre Accountable Care Organizations in den USA: Impulse für Reformen in Deutschland?

10 Years Accountable Care Organizations in the USA: Impulses for Health Care Reform in Germany?
1   Harkness Fellowship, Commonwealth Fund, New York, United States
2   Chief Officer Integrated and Digital Care, Asklepios Kliniken GmbH & Co. KGaA, Hamburg, Germany
,
Volker Eric Amelung
3   Institut für Epidemiologie, Sozialmedizin und Gesundheitssystemforschung, Medizinische Hochschule Hannover, Hannover, Germany
› Author Affiliations

Zusammenfassung

Ziele der Studie Ein Ziel des Patient Protection and Affordable Care Acts (ACA), auch als Obama-Care bekannt, war die Bremsung der Kostenentwicklung im staatlichen Medicare-System durch eine Übertragung der Verantwortung für Versorgungskosten und -qualität auf die Leistungserbringer. Hierfür wurde Leistungserbringern gestattet sich in Netzwerken zusammenzuschließen, in denen sie für eine definierte Population verantwortlich sind –Accountable Care Organizations (ACOs). Zehn Jahre nach der Einführung von ACOs wird die Auswirkung auf Versorgungskosten und -qualität untersucht, um mögliche Implikationen für eine Übertragung auf Deutschland abzuleiten.

Methodik In einem Mixed Methods-Ansatz wurde ein Rapid Review in Health System Evidence und PubMed durchgeführt. Per Snowballing-Verfahren wurden weitere Paper identifiziert. Eingeschlossen wurden Paper, die nach Screening des Abstracts Aussagen zur Kosten- und/oder Qualitätsentwicklung enthielten. Ausgeschlossen wurden Paper, welche sich nicht auf US-Medicare-ACOs bezogen. Die Ergebnisse wurden im Folgenden durch Interviews mit 16 Experten aus den USA überprüft.

Ergebnisse Für die Analyse wurden 60 Paper herangezogen, inklusive 6 Reports im Auftrag von oder direkt durchgeführt von US-Regierungsstellen sowie 3 vorhergegangene Reviews. Von den 60 Papern beinhalten 31 Aussagen zu Kostenentwicklung, 18 zu Qualitätsentwicklung sowie 11 zu beiden Aspekten. Die Studien zeigen überwiegend, dass ACOs Versorgungskosten senken können. Das Kostensenkungspotential von ACOs besteht sowohl im Vergleich zu historischen Versorgungsdaten der jeweiligen Population als auch im Vergleich zu nicht in ACOs versorgten Populationen, als auch im Vergleich zu Counterfactuals. Die Qualität der Versorgung ist hierbei mindestens gleich geblieben oder konnte gesteigert werden.

Schlussfolgerung ACOs haben in den USA das Ausgabenwachstum für Medicare gebremst, bei unveränderter oder sogar verbesserter Qualität. Daher sollte eine Übertragung auf Deutschland in Erwägung gezogen werden. Jedoch haben verschiedene Policies den Erfolg der ACOs eingeschränkt. Vor diesem Hintergrund sowie den Unterschieden zum deutschen Versorgungssystem bedarf es einer kritischen Reflektion der Steuerungsinstrumente vor Einführung von ACO ähnlichen Strukturen in Deutschland.

Abstract

Goal of the Study An intent of the Patient Protection and Affordable Care Acts (ACA), also know as Obama Care, was to slow the expenditure growth in the public Medicare-System by shifting the accountability for health care outcomes and costs to the provider. For this purpose, provider were allowed to form networks, which would then take accountability for a defined population – Accountable Care Organizations (ACOs). Ten years after the introduction of ACOs, this paper looks at the impact of ACOs both on quality of care and costs of care to assess if ACOs can be a model of care delivery for Germany.

Methods In a mixed-method approach, a rapid review was conducted in Health System Evidence and PubMed. This was supported with further papers identified using the snowballing-technique. After screening the abstracts, we included articles containing information on cost- and/or quality impact of US-Medicare-ACOs. The findings of the rapid review were challenged with 16 ACO-experts and stakeholder in the USA.

Results In total, we included 60 publications which incorporated 6 reports that were either conducted directly by governmental institutions or ordered by them, along with 3 previous reviews. Among these, 31 contained information on costs of care, 18 contained information on quality of care and 11 had information on both aspects. The publications show that ACOs reduced costs of of care. Cost reductions were achieved compared to historic costs, to populations not cared for in ACOs, and counterfactuals. Quality of care stayed the same or improved.

Conclusion ACOs contributed to slowing the cost growth in US Medicare without compromising quality of care. Thus, a transferal of this model of care to Germany should be considered. However, various policies have led to ACOs failing to unleash their full potential. Against this background, and against the background of stark differences between US Medicare and the German health care system, a critical reflection of the necessary policies underlying ACOs-like structures in Germany, needs to be undertaken.

Zusätzliches Material



Publication History

Article published online:
03 February 2022

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  • Literatur

  • 1 Ochmann R, Albrecht M. Zukünftige Entwicklung der GKV-Finanzierung. 2019
  • 2 Beivers A, Emde A. DRG-Einführung in Deutschland: Anspruch, Wirklichkeit und Anpassungsbedarf aus gesundheitsökonomischer Sicht. In: Klauber J, Geraedts M, Friedrich J, Wasem J, Beivers A, Hrsg. Krankenhausreport 2020 – Finanzierung und Vergütung am Scheideweg. Berlin: Springer Berlin Heidelberg; 2020: 3-24
  • 3 Benstetter F, Lauerer M, Negele D. et al. Potenziale prospektiver regionaler Gesundheitsbudgets am Beispiel spanischer und amerikanischer Erfahrungen. In: Klauber J, Geraedts M, Friedrich J, Jürgen Wasem, Andreas Beivers, Hrsg. Krankenhausreport 2020 – Finanzierung und Vergütung am Scheideweg. Berlin: Springer Berlin Heidelberg; 2020: 69-90
  • 4 United States Government. Patient Protection and Affordable Care Act (ACA). 2010
  • 5 U.S. Department of Health and Human Services. Better, Smarter, Healthier: In historic announcement, HHS sets clear goals and timeline for shifting Medicare reimbursements from volume to value. 2015. Im Internet: https://wayback.archive-it.org/3926/20170127185400/https://www.hhs.gov/about/news/2015/01/26/better-smarter-healthier-in-historic-announcement-hhs-sets-clear-goals-and-timeline-for-shifting-medicare-reimbursements-from-volume-to-value.html
  • 6 Wilson M, Guta A, Waddell K. et al. The impacts of accountable care organizations on patient experience, health outcomes and costs: a rapid review. J Heal Serv Res Policy 2020; 25: 130-138
  • 7 Buntin MB, Graves JA. How the ACA dented the cost curve. Health Aff 2020; 39: 403-412
  • 8 Emanuel EJ, Navathe AS. Delivery-System Reforms: Evaluating the Effectiveness of the ACAʼs Delivery-System Reforms at Slowing Cost Growth and Improving Quality and Patient Experience. In: The Trillion Dollar Revolution – How the Affordable Care Act transformed Politics, Law and Health Care in America 2020; 225-249
  • 9 Shortell SM, Wu FM, Lewis VA. et al. A taxonomy of accountable care organizations for policy and practice. Health Serv Res 2014; 49: 1883-1899
  • 10 Muhlestein DB, Tu T, Colla CH. Accountable care organizations are increasingly led by physician groups rather than hospital systems. Am J Manag Care 2020; 26: 225-228
  • 11 Centers for Medicare & Medicaid Services. ACO Investment Model – Final Evaluation of Three AIM Performance Years. Im Internet: https://innovation.cms.gov/data-and-reports/2020/aim-fg-finalannrpt
  • 12 Muhlestein DB, Bleser WK, Saunders RS. et al. Spread of ACOs and value-based payment models in 2019: Gauging the impact of Pathways to Success. Heal Aff Blog. 2019
  • 13 Centers for Medicare & Medicaid Services. Shared Savings Program Fast Facts – As of January 1, 2021. 2021: 1–2
  • 14 Mechanic R, Gaus C. Medicare Shared Savings Program Produces Substantial Savings: New Policies Should Promote ACO Growth. Heal Aff Blog 2018; 1-15
  • 15 Bleser WK, Muhlestein DB, Saunders RS. et al. Half A Decade In, Medicare Accountable Care Organizations Are Generating Net Savings: Part 1. Heal Aff Blog. 2018
  • 16 Medicare Payment Advisory Commission. Medicare and the health care delivery system – Report to the Congress. Medpac 2019; 1-157
  • 17 Chiedi JM. Office of Inspector General ACOs’ Strategies for Transitioning to Value-Based Care: Lessons From the Medicare Shared Savings Program. U.S. Department of Health and Human Services. 2019
  • 18 Centers for Medicare & Medicaid Services. Medicare Program; Medicare Shared Savings Programm; Accountable Care Organizations – Pathway to Success. 2018
  • 19 Rutledge RI, Romaire MA, Hersey CL. et al. Medicaid Accountable Care Organizations in Four States: Implementation and Early Impacts. Milbank Q 2019; 97: 583-619
  • 20 Muhlestein DB, Saunders R, Richards R. et al. Recent Progress In The Value Journey: Growth Of ACOs And Value-Based Payment Models In 2018. Heal Aff Blog 2018; 1-17
  • 21 Zhang H, Cowling DW, Graham JM. et al. Five-year Impact of a Commercial Accountable Care Organization on Health Care Spending, Utilization, and Quality of Care. Med Care 2019; 57: 845-854
  • 22 Song Z, Rose S, Safran DG. et al. Changes in Health Care Spending and Quality 4 Years into Global Payment. N Engl J Med 2014; 371: 1704-1714
  • 23 Peter G. Peterson Foundation. Budget Basics: Medicare. 2020 Im Internet: https://www.pgpf.org/budget-basics/medicare
  • 24 Meyer GS, Ajayi T, Cohen M. et al. Health Care Delivery System Reform Program. 2020 Im Internet:http://www.commonwealthfund.org/grants-and-fellowships/programs/health-care-delivery-system-reform
  • 25 Peter G. Peterson Foundation. Budget Basics: Medicaid. 2021 Im Internet: https://www.pgpf.org/budget-basics/budget-explainer-medicaid
  • 26 Tricco AC, Langlois EV, Straus SE. Rapid reviews to strengthen health policy and systems: a practical guide. Genf: World Health Organization; 2017
  • 27 Langlois EV, Straus SE, Antony J. et al. Using rapid reviews to strengthen health policy and systems and progress towards universal health coverage. BMJ Glob Heal 2019; 4: e001178
  • 28 Peckham A, Rudoler D, Bhatia D. et al. Accountable care organizations and the Canadian context. North Am Obs Heal Syst Policies Rapid Rev (No 9) 2018; 1-30
  • 29 Kaufman BG, Spivack BS, Stearns SC. et al. Impact of Accountable Care Organizations on Utilization, Care, and Outcomes: A Systematic Review. Med Care Res Rev 2019; 76: 255-290
  • 30 Office of Inspector General. Medicare Program Shared Savings Accountable Care Organizations Have Shown Potential for Reducing Spending and Improving Quality. U.S. Department of Health and Human Services. 2017
  • 31 Centers for Medicare & Medicaid Services. Medicare Program; Medicare Shared Savings Program; Accountable Care Organizations-Pathways to Success. U.S. Department of Health and Human Services. 2018
  • 32 US Government Accountability Office. Medicare: Results From The First Two Years Of The Pioneer Accountable Care Organization Model. United States Gov Account Off Rep to Rank Member, Comm Ways Means, House Represent. 2015
  • 33 Dobson A, Pal S, Hartzman A. et al. Estimates of Savings by Medicare Shared Savings Program Accountable Care Organizations Program Financial Performance 2013–2015. National Association of ACOs. 2018
  • 34 McWilliams JM. Savings From ACOs-Building on Early Success. Ann Intern Med 2016; 165: 873-876
  • 35 Pittman D. ACO Participation Hit Low During Trump Administration – NAACOS Challenges Biden Administration to Rekindle Growth in Largest Value-Based Payment Program. 2021
  • 36 Chernew ME, Barbey C, McWilliams JM. Savings Reported by CMS Do Not Measure True ACO Savings. Heal Aff Blog. 2017
  • 37 McWilliams JM, Hatfield LA, Landon BE. et al. Medicare Spending after 3 Years of the Medicare Shared Savings Program. N Engl J Med 2018; 379: 1139-1149
  • 38 McWilliams JM. Changes in medicare shared savings program savings from 2013 to 2014. JAMA – J Am Med Assoc 2016; 316: 1711-1713
  • 39 L&M Policy Research. Evaluation of CMMI Accountable Care Organization Initiatives: Pioneer ACO Evaluation Findings from Performance Years One and Two. Washington D.C.: 2015
  • 40 Nyweide DJ, Lee W, Cuerdon TT. et al. Association of Pioneer Accountable Care Organizations vs Traditional Medicare Fee for Service With Spending, Utilization, and Patient Experience. Jama 2015; 313: 2152-2161
  • 41 McWilliams JM, Chernew ME, Landon BE. et al. Performance Differences in Year 1 of Pioneer Accountable Care Organizations. N Engl J Med 2015; 372: 1927-1936
  • 42 Zhang Y, Caines KJ, Powers CA. Evaluating the effects of pioneer accountable care organizations on medicare part D drug spending and utilization. Med Care 2017; 55: 470-475
  • 43 Sukul D, Ryan AM, Yan P. et al. Cardiologist Participation in Accountable Care Organizations and Changes in Spending and Quality for Medicare Patients with Cardiovascular Disease. Circ Cardiovasc Qual Outcomes 2019; 12: 1-8
  • 44 McWilliams JM, Hatfield LA, Chernew ME. et al. Early Performance of Accountable Care Organizations in Medicare. N Engl J Med 2016; 374: 2357-2366
  • 45 Trombley MJ, Fout B, Brodsky S. et al. Early Effects of an Accountable Care Organization Model for Underserved Areas. N Engl J Med 2019; 381: 543-551
  • 46 Markovitz AA, Mullangi S, Hollingsworth JM. et al. ACOs and the 1%: Changes in Spending Among High-Cost Patients Following the Medicare Shared Savings Program. J Gen Intern Med 2019; 34: 1116-1118
  • 47 Hsu J, Price M, Vogeli C. et al. Bending the spending curve by altering care delivery patterns: The role of care management within a pioneer ACO. Health Aff 2017; 36: 876-884
  • 48 Schulz J, DeCamp M, Berkowitz SA. Regional cost and experience, not size or hospital inclusion, helps predict ACO success. Med (United States) 2017; 96
  • 49 Gonzalez-Smith J, Saunders RS, Bleser WK. et al. The Medicare Shared Savings Program In 2019: Positive Results During Major Transition And On The Eve Of A Pandamic. Heal Aff Blog. 2020
  • 50 Chernew ME, de Loera-Brust A, Rathi V. et al. MSSP Participation Following Recent Rule Changes: What Does It Tell Us?. Heal Aff Blog 2019; 1-11
  • 51 Clark JD, Kapinos KA, Lewis J. et al. Differences in Savings and Quality by Type of ACO Model. Am J Accountable Care 2020; 8: 3-8
  • 52 Verma S. 2019 Medicare Shared Savings Program ACO Performance: Lower Costs And Promising Results Under ‘Pathways To Success’. Heal Aff Blog 2019; 1
  • 53 Peck K, Usadi B, Mainor A. et al. How ACOs Are Caring for People with Complex Needs | Commonwealth Fund. Commonw Fund. 2018
  • 54 Barath D, Amaize A, Chen J. Accountable Care Organizations and Preventable Hospitalizations Among Patients With Depression. Am J Prev Med 2020; 59: e1-e10
  • 55 Schwartz AL, Chernew ME, Landon BE. et al. Changes in low-value services in year 1 of the medicare pioneer accountable care organization program. JAMA Intern Med 2015; 175: 1815-1825
  • 56 Lin SC, Yan PL, Moloci NM. et al. Out-of-network primary care is associated with higher per beneficiary spending in medicare ACOs. Health Aff 2020; 39: 310-318
  • 57 Barnett ML, McWilliams MJ. Changes in Specialty Care Use and Leakage in Medicare Accountable Care Organizations. Am J Manag Care 2018; 24: e141-e149
  • 58 McWilliams JM, Chernew ME, Landon BE. Medicare ACO program savings not tied to preventable hospitalizations or concentrated among high-risk patients. Health Aff 2017; 36: 2085-2093
  • 59 Colla CH, Lewis VA, Kao LS. et al. Association between medicare accountable care organization implementation and spending among clinically vulnerable beneficiaries. JAMA Intern Med 2016; 176: 1167-1175
  • 60 Kyle MA, McWilliams JM, Landrum MB. et al. Spending variation among ACOs in the medicare shared savings program. Am J Manag Care 2020; 26: 170-175
  • 61 McWilliams JM, Gilstrap LG, Stevenson DG. et al. Changes in postacute care in the medicare shared savings program. JAMA Intern Med 2017; 177: 518-526
  • 62 Muhlestein DB, Morrison SQ, Saunders RS. et al. Medicare Accountable Care Spending Patterns: Shifting Expenditures Associated With Savings. Am J Accountable Care 2018; 6: 11-19
  • 63 Powers BW, Mostashari F, Maxson E. et al. Engaging small independent practices in value-based payment: Building Aledade’s medicare ACOs. Healthcare 2018; 6: 79-87
  • 64 Colla CH, Lewis VA, Stachowski CA. et al. Changes in Use of Post-Acute Care Associated with Accountable Care Organizations in Hip Fracture, Stroke, and Pneumonia Hospitalized Cohorts. Med Care 2019; 57: 444-452
  • 65 Modi P, Moloci N, Herrel L. et al. Medicare Accountable Care Organizations Reduce Spending on Surgery. Am J Accountable Care 2020; 8: 12-19
  • 66 Ganguli I, Lupo C, Mainor AJ. et al. Association between specialist compensation and Accountable Care Organization performance. Health Serv Res 2020; 55: 722-728
  • 67 Rosman DA, Farinhas J, Kassing P. et al. Radiology in pioneer accountable care organizations: Much ado about nothing?. J Am Coll Radiol 2015; 12: 124-126
  • 68 Dupree JM, Patel K, Singer SJ. et al. Attention to surgeons and surgical care is largely missing from early medicare accountable care organizations. Health Aff 2014; 33: 972-979
  • 69 McWilliams JM, Najafzadeh M, Sharnk WH. et al. Association of Changes in Medication Use and Adherence With Accountable Care Organization Exposure in Patients With Cardiovascular Disease or Diabetes. Jama Cardiol 2017; 2: 1019-1023
  • 70 Centers for Medicare & Medicaid Services. ACO Quality Measures.
  • 71 Centers for Medicare & Medicaid Services. Medicare Shared Savings Program quality measure benchmarks for the 2020 performance year. December 2019 2019. Im Internet: https://www.cms.gov/files/document/2020-quality-measures-benchmarks.pdf
  • 72 Centers for Medicare & Medicaid Services. Medicare Accountable Care Organizations 2015 Performance Year Quality and Financial Results. August 2016
  • 73 U.S. Department of Health and Human Services. Medicare Program; Medicare Shared Savings Program; Accountable Care Organizations-athways to Success. Fed Regist 2018; 83: 41786-41951
  • 74 Bleser WK, Saunders RS, Muhlestein DB. et al. ACO Quality Over Time: The MSSP Experience and Opportunities for System-Wide Improvement. Am J Accountable Care 2018; 1-15
  • 75 Comfort LN, Shortell SM, Rodriguez HP. et al. Medicare Accountable Care Organizations of Diverse Structures Achieve Comparable Quality and Cost Performance. Health Serv Res 2018; 53: 2303-2323
  • 76 Peiris D, Phipps-Taylor MC, Stachowski CA. et al. ACOs holding commercial contracts are larger and more efficient than noncommercial ACOs. Health Aff 2016; 35: 1849-1856
  • 77 Meyer CP, Krasnova A, Sammon JD. et al. Accountable care organizations and the use of cancer screening. Prev Med (Baltim) 2017; 101: 15-17
  • 78 Resnick MJ, Graves AJ, Gambrel RJ. et al. The association between Medicare accountable care organization enrollment and breast, colorectal, and prostate cancer screening. Cancer 2018; 124: 4366-4373 DOI: 10.1002/cncr.31700.
  • 79 Luo N, Hammill BG, DeVore AD. et al. Outcomes and cost among Medicare beneficiaries hospitalized for heart failure assigned to accountable care organizations: HF outcomes associated with ACOs. Am Heart J 2020; 226: 13-23
  • 80 Fraze TK, Lewis VA, Tierney E. et al. Quality of Care Improves for Patients with Diabetes in Medicare Shared Savings Accountable Care Organizations: Organizational Characteristics Associated with Performance. Popul Health Manag 2018; 21: 401-408
  • 81 McWilliams JM, Landon BE, Chernew ME. et al. Changes in Patients’ Experiences in Medicare Accountable Care Organizations. N Engl J Med 2014; 371: 1715-1724
  • 82 Chukmaitov A, Harless DW, Bazzoli GJ. et al. Preventable Hospital Admissions and 30-Day All-Cause Readmissions: Does Hospital Participation in Accountable Care Organizations Improve Quality of Care?. Am J Med Qual 2019; 34: 14-22
  • 83 Lin YL, Ortiz J, Boor C. ACOs’ Impact on Hospitalization Rates of Rural Older Adults with Diabetes: Early Indications. Fam Community Heal 2018; 41: 265-273
  • 84 Kim Y, Thirukumaran CP, Li Y. Greater reductions in readmission rates achieved by urban hospitals participating in the medicare shared savings program. Med Care 2018; 56: 686-692
  • 85 Kim Y, Glance LG, Holloway RG. et al. Medicare Shared Savings Program and readmission rate among patients with ischemic stroke. Neurology 2020; 95: e1071-e1079
  • 86 Borza T, Oerline MK, Skolarus TA. et al. Association between hospital participation in Medicare Shared Savings Program Accountable Care Organizations and readmission following major surgery. Ann Su 2019; 269: 873-878
  • 87 Winblad U, Mor V, Mc JPH. et al. ACO-affiliated hospitals reduced rehospitalizations from skilled nursing facilities faster than other hospitals. Health Aff 2017; 36: 67-73
  • 88 Duggal R, Zhang Y, Diana ML. The Association Between Hospital ACO Participation and Readmission Rates. J Healthc Manag 2018; 63: e100-e114
  • 89 Cutler E, Karaca Z, Henke R. et al. The effects of medicare accountable organizations on inpatient mortality rates. Inq (United States) 2018; 55
  • 90 Ouayogodé MH, Mainor AJ, Meara E. et al. Association between Care Management and Outcomes among Patients with Complex Needs in Medicare Accountable Care Organizations. JAMA Netw Open 2019; 2: 1-13
  • 91 Coffman M, Habib A, Chung Y. et al. Advanced Primary Care: A Key Contributor to Successful ACOs 2018; 1-52
  • 92 Lewis VA, Schoenherr K, Fraze T. et al. Clinical coordination in accountable care organizations: A qualitative study. Health Care Manage Rev 2019; 44: 127-136
  • 93 Berenson RA, Burton RA, McGrath M. Do accountable care organizations (ACOs) help or hinder primary care physicians’ ability to deliver high-quality care?. Healthcare 2016; 4: 155-159
  • 94 Gupta R, Skootsky SA, Kahn KL. et al. A System-Wide Population Health Value Approach to Reduce Hospitalization Among Chronic Kidney Disease Patients: an Observational Study. J Gen Intern Med 2020; 1-9
  • 95 Huber TP, Shortell SM, Rodriguez HP. Improving Care Transitions Management: Examining the Role of Accountable Care Organization Participation and Expanded Electronic Health Record Functionality. Health Serv Res 2017; 52: 1494-1510
  • 96 Millenson ML, Muhlestein DB, O’Donnell EM. et al. Patient-centered care innovations by accountable care organizations: Lessons from leaders. Healthcare 2019; 7: 1-5
  • 97 Saunders R, Bleser W, Japinga M. Serious Illness Approaches by ACOs: U.S. Medical Management. 2019 2019.
  • 98 Bleser WK, Saunders RS, Winfield L. et al. Aco serious illness care: Survey and case studies depict current challenges and future opportunities. Health Aff 2019; 38: 1011-1020
  • 99 Gupta R, Roh L, Lee C. et al. The Population Health Value Framework: Creating Value by Reducing Costs of Care for Patient Subpopulations with Chronic Conditions. Acad Med 2019; 94: 1337-1342
  • 100 Pierce-Wrobel C, Micklos J. How The Most Successful ACOs Act As Factories Of Innovation. Heal Aff Blog 2018; 1-8
  • 101 Amelung VE. Healthcare Management: Managed Care Organisations and Instruments. second Edition 2nd Editio Springer; 2019
  • 102 Centers for Medicare and Medicaid Services. Performance Year Finanical and Quality Data. 2021. Im Internet: https://data.cms.gov/medicare-shared-savings-program/performance-year-financial-and-quality-results
  • 103 Hong YR, Kates F, Song SJ. et al. Benchmarking implications: Analysis of medicare accountable care organizations spending level and quality of care. J Healthc Qual 2018; 40: 344-353
  • 104 Smith B. CMS Innovation Center at 10 Years-Progress and Lessons Learned. N Engl J Med 2021; 384: 759-764
  • 105 Blumenthal D, Abrams M. The Affordable Care Act at 10 Years– Payment and Delivery System Reforms. N Engl J Med 2020; 382: 1057-1063
  • 106 Miller HD. It’s Time for a New Approach to ACOs. J Ambul Care Manage 2020; 43: 15-18
  • 107 de Lisle K, Litton T, Brennan A. et al. The 2017 ACO Survey: What Do Current Trends Tell Us About The Future Of Accountable Care?. Health Aff 2017; 1-19
  • 108 Barnett ML, Mehrotra A, Grabowski DC. Postacute Care-The Piggy Bank for Savings in Alternative Payment Models?. N Engl J Med 2019; 381: 302-303 DOI: 10.1056/nejmp1901896.
  • 109 Navathe AS, Boyle CW, Emanuel EJ. Alternative Payment Models– Victims of Their Own Success?. JAMA – J Am Med Assoc 2020; 324: 237-238
  • 110 Centers for Medicare & Medicaid Services. Hospital Readmissions Reduction Program (HRRP).
  • 111 Ibrahim A, Nathan H, Thumma J. et al. Impact of the Hospital Readmission Reduction Program on surgical readmissions among Medicare beneficiaries. Ann Surg 2017; 266: 617-624
  • 112 Lipitz-Snyderman A. Accountability for Underuse and Overuse of Cancer Screening. JAMA Intern Med 2018; 178: 655-656
  • 113 Cole AP, Krasnova A, Ramaswamy A. et al. Recommended Cancer Screening in Accountable Care Organizations: Trends in Colonoscopy and Mammography in the Medicare Shared Savings Program. J Oncol Pract 2019; 15: e547-e559
  • 114 Burns LR, Pauly MV. Accountable care organizations may have difficulty avoiding the failures of integrated delivery networks of the 1990s. Health Aff 2012; 31: 2407-2416
  • 115 Hsu J, Vogeli C, Price M. et al. Substantial physician turnover and beneficiary „churn“ in a large medicare pioneer ACO. Health Aff 2017; 36: 640-648
  • 116 Lewis VA, Fisher ES, Colla CH. Explaining Sluggish Savings under Accountable Care. N Engl J Med 2017; 377: 1809-1811
  • 117 Navathe AS, Bain AM, Werner RM. Do Changes in Post-acute Care Use at Hospitals Participating in an Accountable Care Organization Spillover to All Medicare Beneficiaries?. J Gen Intern Med 2018; 33: 831-838
  • 118 Lewis VA, Tierney KI, Colla CH. et al. The new frontier of strategic alliances in health care: New partnerships under accountable care organizations. Soc Sci Med 2017; 190: 1-10
  • 119 Navathe AS, McClellan MB, Chen C. et al. Medicare Payment Reform’s Next Decade: A Strategic Plan For The Center For Medicare And Medicaid Innovation. Heal Aff Blog. 2021 February 1st 2021
  • 120 Biden-Sanders Unity Task Force. Biden-Sanders Unity Task Force Recommendations. 2020
  • 121 Centers for Medicare & Medicaid Services. Final Rule Creates Pathways to Success for the Medicare Shared Savings Program. 2018. Im Internet: https://www.cms.gov/newsroom/fact-sheets/final-rule-creates-pathways-success-medicare-shared-savings-program
  • 122 Webb AR, Liaw W, Chung Y. et al. Accountable Care Organizations Serving Deprived Communities Are Less Likely to Share in Savings. J Am Board Fam Med 2019; 32: 913-922
  • 123 Heiser S, Conway PH, Rajkumar R. Primary Care Selection: A Building Block for Value-Based Health Care. JAMA – J Am Med Assoc 2019; 322: 1551-1552
  • 124 Ginsburg PB, Patel KK. Physician Payment Reform – Progress to Date. N Engl J Med 2017; 377: 285-292
  • 125 Ouayogodé MH, Colla CH, Lewis VA. Determinants of Success in Shared Savings Programs: An Analysis of ACO and Market Characteristics. healthcare 2017; 5: 53-61
  • 126 Marill MC. From Rural Germany, Integrated Care Grows Into A Global Model. Health Aff 2020; 39: 1282-1288
  • 127 Schubert I, Stelzer D, Siegel A. et al. 10-Jahres-Evaluation der populationsbezogenen integrierten Versorgung „Gesundes Kinzigtal“. Dtsch Arztebl Int 2021; 118: 465-472
  • 128 Groene O, Langenberger B, Catalá E. et al. Erfolgspotentiale durch ein optimiertes Versorgungsmanagement – Von der Prädiktion von Hochrisikopatienten zur Populationsorientierung. In: Hildebrandt H, Stuppardt R, Hrsg. Zukunft Gesundheit – regional, vernetzt, patientenorientiert. Heidelberg: medhochzwei-Verlag; 2021: 493-509
  • 129 Simon B. Neue Rollen und Verantwortung der stationären Leistungserbringer in einer zukünftigen Versorgungslandschaft. In: Simon B, Krämer N, Hrsg. Zukunft der Gesundheitsversorgung – Vorschläge und Konzepte aus Perspektive der stationären Leistungserbringer. Wiesbaden: Springer Gabler; 2021