Children's Mercy Pediatric Care Network

Leadership Team


Luke Harris, MBA

Executive Director

Luke Harris serves as Executive Director of Children’s Mercy Integrated Care Solutions (CMICS), a wholly owned subsidiary of Children’s Mercy Kansas City. CMICS leads the organization’s population health management strategy and oversees both Children’s Mercy Health Network (CMHN) and Pediatric Care Network (PCN). Through these organizations, CMICS develops and manages integrated pediatric provider networks that advance the health and well-being of children through high-value, coordinated, and whole-person care.

Luke is also responsible for oversight of Children’s Mercy’s contractual relationships with third-party payers, including commercial insurers and government agencies, as well as its affiliated primary care network. These affiliated practices, known as Children’s Mercy Affiliated Practices (CMAPs), are community-based pediatric practices that partner with Children’s Mercy through formal affiliation agreements.

Since joining Children’s Mercy in 2014, Luke has held several operational leadership positions, most recently serving as Senior Director of Operations and Population Health Management. He brings more than 20 years of experience in healthcare operations, strategy, population health, and information technology.

Prior to joining CMICS, Luke served as Director of Business Intelligence for Integrated Health Network of Wisconsin, one of the nation’s first clinically integrated accountable care networks. The network included five health systems, an academic medical center, and more than 100 independent physician practices. In this role, he led the implementation and optimization of population health management and care coordination technologies and analytics capabilities.

Luke earned an MBA from Northwestern University’s Kellogg School of Management and a Bachelor of Science in Biomedical Engineering from the University of Wisconsin-Madison.

LinkedIn Profile: https://www.linkedin.com/in/laharris/


Doug Blowey, MD

Medical Director

Doug Blowey, MD is the Medical Director for Integrated Care Solutions and Chief Clinical Integration Officer for Children’s Mercy. He provides medical leadership to ICS and health system-level leadership for Children’s Mercy’s clinical integration initiatives.

Doug is a Pediatric Nephrologist and Associate Professor of Pediatrics and Pharmacology who has been on the faculty at Children’s Mercy Hospital for over 30 years. He received his medical degree from the University of Kansas and subsequent pediatric and fellowship training at Children’s Mercy and the Hospital for Sick Children in Ontario, Canada. He is board certified in Pediatric Nephrology and Clinical Pharmacology. He remains clinically active in the Nephrology section, where he serves as the Director of the Hypertension program. During his tenure at Children’s Mercy, Doug has participated in numerous hospital committees and held key leadership roles. He has served as the fellowship director for the Pediatric Nephrology Fellowship program, Chair of the Pharmacy and Therapeutic committee, and as the secretary/treasurer, president-elect, and president of the Medical staff.


Carey Spain, MSW, MBA, LCSW, LSCSW, ACM-SW

Senior Director of Integrated Community Care

Carey Spain is the Senior Director of Integrated Community Care. She is responsible for the oversight of delegated medical & behavioral management functions for health plans contracted with Children’s Mercy’s Pediatric Care Network. Carey also oversees community partnerships that aim to support children and families in reaching optimal health and wellbeing.

Carey is a masters prepared Social Worker and Accredited Case Manager with more than 20 years of experience in health care.


Kim Pearcy, MSA

Senior Accounting Manager

Kim serves as Senior Accounting Manager for Children’s Mercy Integrated Care Solutions (CMICS), supporting CMICS financial operations and providing accounting support for Children's Mercy Affiliated Practices.

Kim joined Children's Mercy in 2007 and has supported the organization’s transition from Family Health Partners to Integrated Care Solutions. Her 20 years of prior healthcare accounting experience, combined with her long tenure at Children's Mercy, gives her a strong foundation for this role. She holds a Master of Science in Accounting from UMKC.


Jim Naus

Director of Information Technology

Jim Naus is the Director of Information Technology for Children's Mercy Integrated Care Solutions (CMICS). He is responsible for technology strategy, cybersecurity, infrastructure, and enterprise systems that support the organization's mission and operations.

Jim focuses on aligning technology with business objectives while ensuring secure, reliable, and efficient technology services across the organization. Jim has been with CMICS since 2005 and has over 30 years’ experience in IT.


Matthew Combes, MSW, MBA, LCSW, LSCSW, CMAC, ACM-SW

Director of Integrated Care

Matthew Combes serves as the Director of Integrated Care for Children's Mercy Integrated Care Solutions, where he provides strategic oversight of delegated health plan management functions, including utilization management, case management, and disease management. As a master's-prepared Licensed Clinical Social Worker and Certified Case Management Administrator, Matthew brings more than a decade of healthcare leadership experience spanning care management operations, regulatory compliance, quality improvement, and population health management.

A collaborative and results-oriented leader, Matthew is passionate about building high-performing teams through shared vision, innovation, and meaningful partnerships. He believes that the best outcomes are achieved through teamwork and a steadfast commitment to patient-centered care. Throughout his career, he has led teams and initiatives focused on improving healthcare access, quality, and outcomes for diverse populations. He thrives in environments that embrace change, innovation, and continuous improvement, always keeping the needs of patients and families at the center of the work.

Matthew joined Children's Mercy in 2016 as a Care Manager for the Pediatric Care Network and advanced to his current leadership role in 2019. Prior to joining Children's Mercy, he worked in both community-based and inpatient case management settings throughout the Kansas City metropolitan area, gaining extensive experience supporting individuals and families across the continuum of care.

In 2026, Matthew earned his Master of Business Administration (MBA), further strengthening his expertise in healthcare strategy, organizational leadership, and operational management. Driven by a commitment to innovation, collaboration, and equitable care, Matthew is dedicated to helping individuals and families achieve their best possible health outcomes while advancing integrated care solutions that improve the health of communities.


Kristy Diederich, MHSA

Director of Operations and Population Health Management

Kristy serves as the Director of Operations and Population Health Management for Children's Mercy Integrated Care Solutions (CMICS). She is responsible for leading network operations, population health management, quality improvement, clinical integration, and value-based care initiatives across Children's Mercy's clinically integrated networks. Since joining Children's Mercy in 2021, Kristy has worked closely with providers, health system leaders, payers, and community partners to improve health outcomes, strengthen network performance, and advance innovative models of pediatric care. Prior to Children's Mercy, she held healthcare strategy and consulting roles focused on strategic planning, physician alignment, governance, and operational improvement. Kristy holds a Master of Health Services Administration from the University of Kansas Medical Center.


Abby Christensen, MHM

Director of Medicaid Operations

Abby is the Director of Medicaid Operations for Children's Mercy Integrated Care Solutions (CMICS). In this role, she leads Medicaid Managed Care Organization (MCO) partnerships, advances innovative Medicaid programs and services, and oversees regulatory compliance and delegated function operations.

Since joining Children's Mercy in 2013, Abby has worked collaboratively with Medicaid health plan partners, providers, and health system stakeholders to strengthen program performance, ensure contractual and regulatory compliance, and support the successful delivery of services to Medicaid populations. She plays a key role in developing and implementing initiatives that improve care coordination, operational effectiveness, and value-based partnerships.

Abby holds a Master of Healthcare Management from Colorado Technical University.

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2420 Pershing Road, Suite G10
P.O. Box 411596, Kansas City, MO 64141

888-670-7261

816-701-4525

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