Accountable Care Organization

ACO: A Way to Better Coordinate Your Health Care

Welcome to the Emerald Physician Services, LLC Accountable Care Organization (ACO). An ACO is a group of doctors, hospitals, and health care providers working together with Medicare to give you high quality, more coordinated service and care. The Emerald Physician Services, LLC ACO is working with Medicare to ensure that our providers and hospitals work together to provide higher quality care to our Medicare fee-for-service patients. By helping your doctors and primary care providers to communicate more closely with your other health care providers, we can deliver high-quality, more coordinated care that meets your individual needs and preferences. The ACO may share in the savings it achieves for the Medicare program when it succeeds in delivering high-quality care and spending health care dollars more wisely.

ACO Name and Location:
Emerald Physician Services, LLC
433 West Main Street
Hyannis, Massachusetts 02601

ACO Primary Contact:
Dr Susan Harrington, DNP 508-776-7872

Organizational Information:
ACO participants:
Emerald Physician Services, LLC

ACO participants in joint ventures between ACO professionals and hospitals:
No participants are involved in a joint venture between ACO professionals and hospitals

ACO governing body:
1. Kumara Sidhartha, MD, MPH, Voting Member and Chair
2. Dr. Susan Harrington, DNP, Voting Member, Compliance Officer and Quality Assurance
3. Elizabeth Dunton, NP, Voting Member, Financial/Marketing Officer
4. Dr Daniel Arnold, Voting Member, ACO provider Emerald Physician Services, LLC
5. Mrs. Bonnie Peterson, Voting Member, Medicare Beneficiary Representative
6. Dr Nathaniel Rudman, Voting Member, Cape Cod Hospital, Community Stakeholder

Key ACO clinical and administrative leadership:
1. ACO Executive: Kumara Sidhartha, MD, MPH
2. Medical Director: Kumara Sidhartha, MD, MPH
3. Compliance Official: Dr. Susan Harrington, DNP
4. Co-Chief Information Officer: Roland Stulsky

Associated committees and committee leadership:
1. Quality Assurance and Improvement Committee: Dr. Susan Harrington, DNP, Chair
2. Compliance Committee: Dr Susan Harrington, DNP, Chair
3. Marketing Committee: Elizabeth Dunton, NP, Chair
4. Finance Committee: Elizabeth Dunton, NP, Chair
5. Provider Liaison: Dr. Daniel Arnold

Types of ACO participants or combinations of participants that formed the ACO:
ACO professionals in a group practice arrangement
Shared Savings and Losses:
Amount of Shared Savings/Losses
• Agreement period beginning 2014, Performance Year 2014: $0
• Agreement period beginning 2014, Performance Year 2015: $0
Shared Savings Distribution
• Agreement period beginning 2014, Performance Years 2014, 2015
o Proportion invested in infrastructure: 20%
o Proportion of distribution to ACO participants: 80%
Payment Rule Waivers
• No, our ACO does not utilize the SNF 3-Day Rule Waiver

Quality Performance Results

• 2015 Quality Performance Results Table

• 2012-2014 Quality Performance Results Table

For more information on how to interpret scores on the above quality performance measures, see

For general questions or additional information about Accountable Care Organizations, please visit or call 1-800-MEDICARE (1-800-633-4227) TTY users should call 1-877-486-2048.