About Collaborative Health Systems

Pioneers of Healthcare Transformation

Founded by Primary Care Providers in 2012, Collaborative Health Systems (CHS) nimbly operates on the dynamic edge of healthcare transformation. We stay abreast of changing opportunities in the regulatory environment so that we can actively engage in influencing the future of healthcare while driving performance for our partners. We help transform the system to meet the needs of the patients and providers.

CHS collaborates with over 3,000 provider partners caring for more than 150,000 patients across 10 states to support the delivery of high-quality, personalized care.

Our core belief is that providers are in the best position to influence the quality and cost of healthcare, and we want to make sure they succeed. Through active collaboration with our provider partners, we provide customized and comprehensive solutions that include administrative and management services such as care coordination and quality reporting, risk management and contracting, population health capabilities, and actionable data insights. CHS provides additional services to secure and deliver favorable value-based contracts with commercial and other health plans.

CHS is able to leverage the robust resources of Centene Corporation Company – a Fortune 50, leading multi-national healthcare enterprise committed to transforming the health of the community, one person at a time. We are here to help our partners weather any challenge they may face.

Our Leadership

The Collaborative Health Systems leadership team is passionate about transforming the healthcare system and committed to collaborating with provider partners in the ever-changing regulatory landscape.

Anthony Valdés


Anthony Valdés

Anthony Valdés is Collaborative Health Systems’ President. In his role, he sets the strategy for transforming how CHS and our providers engage and operate together to improve the quality and experience of healthcare delivered to our beneficiaries in fee-for-value, risk-based arrangements. He leads CHS’ value-based models such as Medicare ACOs and heads the development of Management Services Organization (MSO) solutions. Anthony joined WellCare Health Plans in 2013 and most recently served as the Medicaid vice president of market performance. Before joining WellCare, Anthony held a number of positions of increasing leadership responsibility, including vice president of Physical Medicine for Healthways, chief executive officer of Maryland Medicaid for UnitedHealth Group, and several financial management positions for Procter & Gamble. Anthony received a bachelor’s degree in finance from Florida State University and an MBA from Duke University.

Howard Shaps, MD MBA

Medical Director

Howard Shaps, MD MBA

Howard Shaps, MD MBA is Collaborative Health Systems’ Medical Director and Centene’s Deputy Chief Medical Officer. In his role as Medical Director, he oversees clinical strategy as it relates to healthcare transformation and value-based care initiatives. As the Deputy Chief Medical Officer, he has direct oversight of medical management and supports the clinical policy, vendor management and clinical strategy teams. Dr. Shaps has a long history of creating strategy and initiatives to drive the delivery of quality care to beneficiaries. Prior to joining Centene in 2020, he served as a medical director for WellCare during which he was responsible for overseeing the clinical direction of Medical Services and quality functions in the Kentucky market. Dr. Shaps joined the WellCare corporate team in 2018 and most currently served as WellCare’s deputy Chief Medical Officer. In that role, Howard was tasked with delivering quality care to all of WellCare’s members by leading WellCare’s medical management and policy teams while promoting value-based care. Howard earned his bachelor’s degree in psychology from the University of Michigan, his Doctor of Medicine from the Boston University School of Medicine and his MBA, with distinction, from the University of Louisville College of Business. He is a diplomat of the American Board of Emergency Medicine.

Lorri Havlovitz

Vice President

Vice President Lorri Havlovitz leads a team focused on engaging providers to improve quality, increase efficiencies, and shift to successful value-based and risk-sharing partnerships. In her role, she is responsible for overall Profit and Loss of ACOs and programs in the northern region. She has spent her career holding leadership positions in healthcare insurance, provider contracting, operations, and practice. Lorri joined CHS in 2009 to lead Medicare Advantage development in Wisconsin, and launched one of the first Shared Savings Program ACOs in the country in 2012. She has been instrumental in the concept and development through implementation and ongoing analysis of several risk-sharing programs across the country.
Lorri has over 30 years of experience in the healthcare industry and has been asked numerous times by CMS to share her knowledge of quality and improvement programs. She is an active member of the National Association of ACOs (NAACOS), where she is on their Board of Directors, and a member of American Physicians Group. Lorri holds a master’s degree in Health Care Management.

Karen Holt

Vice President

Vice President Karen Holt leads a team in the southern region that helps providers shift and experience success in value-based care. Karen has over 20 years of management experience in strategic management of healthcare organizations focusing on value-based care, provider network development, and group practice operations. She joined CHS as a Vice President in mid-2015 and currently manages Next Generation and Shared Savings Program ACOs. During the 2017 performance year, the Accountable Care Coalition of Southeast Texas, one of the two Next Generation Model ACOs she manages, generated $9.1 million in shared savings for the Medicare Trust Fund. Before joining CHS, Karen served as the Director of Physician Network Development for Memorial Hermann Health System in Houston, TX, and was a member of the strategy team that led the development of the Memorial Hermann ACO. She was directly involved in the development, engagement, and transformation of 2,500 independent physicians in Memorial’s Clinically Integrated Network, where she focused on quality reporting and utilization management. The MHACO was the top performing Shared Savings Program ACO in the country from 2013 through 2015.

Michael Barrett

Vice President, Strategy & Business Development

Mike Barrett is Collaborative Health Systems’ Vice President of Strategy and Business Development. In his role, Mike works with provider organizations of every type to guide projects from concept to implementation, configuring relationships so that all stakeholders achieve success. These partnerships include Medicare ACOs and other business operating partnerships, producing industry-leading value for all CHS constituents. Mike brings more than 35 years of varied health care experience to the CHS mission. He has held leadership positions in hospital organizations and large physician groups, as well as with IPAs and even HMOs. Mike cofounded the National Association of Accountable Care Organizations (NAACOS) and served as Chairman from 2012 – 2015, Board Member through 2017, and remains a member of the Policy Committee.

Elena Tkachev

Senior Director, Healthcare Analytics

Elena Tkachev is Collaborative Health Systems’ Senior Director of Healthcare Analytics. In her role, Elena leads a team focused on transforming information into insight. She joined the CHS leadership team in 2014 and developed advanced analytics, models, and algorithms to support healthcare transformation and innovation for CHS provider partners. Before joining CHS, Elena worked at McKinsey Solutions Office in Healthcare Value Analytics. Elena has held leadership positions at Horizon Healthcare Innovations, a subsidiary of Horizon Blue Cross Blue Shield (BCBS) of New Jersey, Anthem and Milliman. Elena earned an MBA from Fordham University and a Bachelor of Science in actuarial science and applied mathematics from Maryville University. She was a member of the Brookings-Dartmouth ACO Learning Network from 2011 to 2013.

Chris Price

Vice President, Operations

Chris is Collaborative Health Systems’ Vice President of Operations. He leads a team that is responsible for program application cycle management, strategic vendor relationships, quality and RAPs performance oversight, integrating and leveraging CHS’ capabilities with partners, as well as systems analysis, design, and implementation. Prior to his current role, Chris served as WellCare’s VP of Compliance Oversight and was responsible for monitoring and oversight activities for internal and delegated entity operations. He has held various audit positions with WellCare, TECO Energy, and Palmetto GBA. Chris earned a bachelor’s degree in accounting and a master’s degree in business administration from the University of South Florida.  Chris holds Certified Internal Auditor, Certification in Control Self-Assessment, and Certified Financial Services Auditor certifications from the Institute of Internal Auditors.

Lori-Don Gregory

Compliance Officer

As Compliance Officer Lori-Don Gregory leads a team that helps operationalize compliance requirements. In her role, she and her team provide guidance on regulatory requirements, develop compliance training and materials, and implement monitoring and oversight programs to ensure compliance with the Shared Savings Program and Next Generation ACO Model. She has more than 18 years of experience developing and maintaining compliance programs in managed care and post-acute care including hospice, home health and skilled nursing facilities for Medicaid, Children’s Health Insurance Program and Medicare. Lori-Don received a bachelor’s degree in Government from the College of William and Mary and her law degree from Widener University.

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