What is an Accountable Care Organization (ACO)?

ACOs are groups of doctors and other healthcare providers who voluntarily work together with Medicare to give patients high-quality service and care at the right time in the right setting.
Hartford HealthCare has agreed to participate in a Medicare Shared Savings ACO and to work closely with other doctors and healthcare providers in the ACO to coordinate care for Medicare beneficiaries who have traditional Medicare.
The ACO may share in any savings that result from providing you with high-quality and more coordinated care.

ACOs do not change a patient's Medicare benefits

An ACO is not a Medicare Advantage plan or an HMO plan.
If patients have traditional Medicare, they still have the right, at any time, to use any doctor or hospital that accepts Medicare.
We may continue to recommend that patients see particular doctors for their specific health needs, but it’s always the patient's choice about what doctors they use.

How will an ACO help doctors coordinate patient care?

Patients benefit because their doctors are part of a better coordinated team.
Patients may not have to fill out as many medical forms that ask for the same information.
Each of our doctors will not only know about the health issues they’ve treated, they also will have a more complete picture of a patient's health through talking with other doctors in the ACO.

ACO Name and Location:

HARTFORD HEALTHCARE ACCOUNTABLE CARE ORGANIZATION, INC.
Previous Names: N/A
1290 Silas Deane Highway
4th Floor
Wethersfield, CT 06109

ACO Primary Contact:

David Santoro

860.972.7843

David.Santoro@hhchealth.org

Organizational Information

ACO Participants as of 1/1/2026:

ACO Participants	ACO Participant in Joint Venture (Enter Y or N)
Hartford HealthCare Medical Group Inc	N
Dobrita Family Care LLC	N

ACO Governing Body:

Member Last Name	Member First Name	Member Title/Position	Member's Voting Power (Expressed as a percentage or number)	Membership Type	ACO Participant Legal Business Name and D/B/A, if applicable
Cardon	James	Voting Member	15%	ACO Participant Representative	Hartford HealthCare Medical Group Inc.
Samson	Wilner	ACO Board Chair/Co-Medical Director, Voting Member	25%	ACO Participant Representative	Hartford HealthCare Medical Group Inc.
Riddle	Cara	Co-Medical Director, Voting Member	25%	ACO Participant Representative	Hartford HealthCare Medical Group Inc.
Goldfarb	George	Voting Member	25%	ACO Participant Representative	Hartford HealthCare Medical Group Inc
Santoro	David	ACO Executive, Voting Member	5%	Other	Hartford HealthCare
Gorton	Elisa	ACO Compliance Officer	Non-voting Member	Other	Hartford HealthCare
Lewis	Courtland	Medicare Beneficiary Representative, Voting Member	5%	Community Stakeholder Representative	n/a

Key ACO Clinical and Administrative Leadership:

ACO Executive: David Santoro
Medical Director: Dr. Wilner Samson & Dr. Cara Riddle
Compliance Officer: Elisa Gorton
Quality Assurance/Improvement Officer: Lisa Tshonas

Associated Committees and Committee Leadership:

Committee Name	Committee Leader Name and Position
Quality and Performance Management	Wilner Samson, MD, Chair
Post-Acute Network	Sowmya Kurtakoti, MD, Chair

Types of ACO Participants, or Combinations of Participants, that Formed the ACO:

ACO professionals in a group practice arrangement

Amount of Shared Savings/Losses:

Third Agreement Period
- Performance Year 2024, $6,705,862.07
- Performance Year 2023, $5,651,215.67
- Performance Year 2022, $0
- Performance Year 2021, $3,528,464.80
- Performance Year 2020, $0
- Performance Year 2019, $0
Second Agreement Period
- Performance Year 2018, $0
- Performance Year 2017, $0
- Performance Year 2016, $0

First Agreement Period
- Performance Year 2015, $0
- Performance Year 2014, $0
- Performance Year 2013, $0

Shared Savings Distribution:

Third Agreement Period
- Performance Year 2024
  - Proportion invested in infrastructure: 0.50%
  - Proportion invested in redesigned care processes/resources: 0.25%
  - Proportion of distribution to ACO participants: 99.25%
- Performance Year 2023
  - Proportion invested in infrastructure: 5%
  - Proportion invested in redesigned care processes/resources: 5%
  - Proportion of distribution to ACO participants: 90%
- Performance Year 2022
  - Proportion invested in infrastructure: N/A
  - Proportion invested in redesigned care processes/resources: N/A
  - Proportion of distribution to ACO participants: N/A
- Performance Year 2021
  - Proportion invested in infrastructure: 10%
  - Proportion invested in redesigned care processes/resources: 5%
  - Proportion of distribution to ACO participants: 85%
- Performance Year 2020
  - Proportion invested in infrastructure: N/A
  - Proportion invested in redesigned care processes/resources: N/A
  - Proportion of distribution to ACO participants: N/A
- Performance Year 2019
  - Proportion invested in infrastructure: N/A
  - Proportion invested in redesigned care processes/resources: N/A
  - Proportion of distribution to ACO participants: N/A
Second Agreement Period
- Performance Year 2018
  - Proportion invested in infrastructure: N/A
  - Proportion invested in redesigned care processes/resources: N/A
  - Proportion of distribution to ACO participants: N/A
- Performance Year 2017
  - Proportion invested in infrastructure: N/A
  - Proportion invested in redesigned care processes/resources: N/A
  - Proportion of distribution to ACO participants: N/A
- Performance Year 2016
  - Proportion invested in infrastructure: N/A
  - Proportion invested in redesigned care processes/resources: N/A
  - Proportion of distribution to ACO participants: N/A

First Agreement Period

- Performance Year 2015
  - Proportion invested in infrastructure: N/A
  - Proportion invested in redesigned care processes/resources: N/A
  - Proportion of distribution to ACO participants: N/A

- Performance Year 2014
  - Proportion invested in infrastructure: N/A
  - Proportion invested in redesigned care processes/resources: N/A
  - Proportion of distribution to ACO participants: N/A

- Performance Year 2013
  - Proportion invested in infrastructure: N/A
  - Proportion invested in redesigned care processes/resources: N/A
  - Proportion of distribution to ACO participants: N/A

Quality Performance Results

2024 Quality Performance Results:

ACO#	Measure Name	Rate	ACO Mean
ACO-1	CAHPS: Getting Timely Care, Appointments, and Information	81.54	83.70
ACO-2	CAHPS: How Well Providers Communicate	94.25	93.96
ACO-3	CAHPS: Patient's Rating of Provider	93.56	92.43
ACO-4	CAHPS: Access to Specialists	73.69	75.76
ACO-5	CAHPS: Health Promotion and Education	69.84	65.48
ACO-6	CAHPS: Shared Decision Making	65.60	62.31
ACO-7	CAHPS: Health Status and Functional Status	76.79	74.14
ACO-8	CAHPS: Care Coordination	86.58	85.89
ACO-9	CAHPS: Courteous and Helpful Office Staff	92.54	92.89
ACO-11	CAHPS: Stewardship of Patient Resources	24.58	26.98
ACO-318	Falls: Screening for Future Fall Risk	77.68	88.99
ACO-110	Preventive Care and Screening: Influenza Immunization	86.41	68.60
ACO-226	Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention	71.43	79.98
ACO-134	Preventive Care and Screening: Screening for Clinical Depression and Follow-up Plan	56.56	81.46
ACO-113	Colorectal Cancer Screening	83.20	77.81
ACO-112	Breast Cancer Screening	85.77	80.93
ACO-438	Statin Therapy for the Prevention and Treatment of Cardiovascular Disease	89.02	86.50
ACO-001	Diabetes Mellitus: Hemoglobin A1c Poor Control	5.63	9.44
ACO-236	Hypertension (HTN): Controlling High Blood Pressure	85.28	79.49
ACO-370	Depression Remission at Twelve Months	7.02	17.35
ACO-479	Hospital-Wide, 30-Day, All-Cause Unplanned Readmission	0.1518	0.1517
ACO-484	All-Cause Unplanned Admissions for Patients with Multiple Chronic Conditions	34.18	37.00

For Previous Years’ Financial and Quality Performance Results, Please Visit data.cms.gov.

Payment Rule Waivers

No, our ACO does not use the SNF 3-Day Rule Waiver.