About Care Alliance

Dr. Ken J.A. Griffin is a seasoned healthcare executive and servant leader with over two decades of experience in healthcare operations, nonprofit management, and public health strategy. He currently serves as the President and CEO of Care Alliance Health Center, a Federally Qualified Health Center (FQHC) dedicated to improving health equity and delivering high-quality, compassionate care to underserved communities in Cleveland.

Born and raised in Wellston, Missouri, Dr. Griffin’s passion for accessible and just healthcare is rooted in personal experience. That passion has guided a career spanning leadership roles at community health centers, public health departments, and national nonprofit organizations. Prior to joining Care Alliance, he served as Chief Operating Officer for both a major social service organization and a FQHC look-alike, where he led strategic transformations in operations, workforce development, and service expansion.

Dr. Griffin holds a Doctorate in Healthcare Administration and a Master of Business Administration with a concentration in Project Management. He is known for leading with vision, compassion, and accountability—prioritizing patient outcomes, employee development, and community partnerships. Under his leadership, Care Alliance is growing its impact through innovative programs, strategic investments, and a renewed focus on cultural humility and health justice.

Beyond his professional work, Dr. Griffin is deeply committed to mentorship, legacy-building, and spiritual growth. He serves on several boards and commissions focused on mental health access, men’s wellness, and community engagement. He believes in leading by example and creating systems that outlive the leader—ones rooted in dignity, integrity, and meaningful change.

Michael J. Cleveland, MPH, is the Chief Operating Officer at Care Alliance Health Center, where he oversees clinical operations, patient access, quality, facilities, and risk management across multiple sites. With more than a decade of experience in healthcare administration and public health, he has led strategic initiatives to improve care delivery for underserved populations, including a city-wide COVID-19 vaccination campaign that reached over 60,000 individuals and the launch of a Community Health Worker program that engaged more than 2,000 patients. Michael J. holds a Master of Public Health from Morehouse School of Medicine and a Bachelor of Science in Biology from Tougaloo College. He is the 25th President of the UNCF National Alumni Council and an active leader and Life Member in the Tougaloo College National Alumni Association, committed to advancing equity, education, and community-centered healthcare systems.

Dr. Luther Walls is a board-certified Family Medicine physician and the Chief Medical Officer at Care Alliance Health Center. He earned his M.D. from Loyola University Chicago and completed residency at the University of Illinois Hospital & Health Sciences System, where he served as Co-Chief Inpatient Resident. Dr. Walls provides comprehensive care to patients of all ages—including pediatrics, adults, and geriatrics—and performs a variety of in-office procedures, including those related to women’s health. He is deeply committed to dismantling barriers to healthcare through system-level innovation, interdisciplinary collaboration, and a focus on underserved populations. His clinical interests include population health, chronic disease management, HIV treatment and prevention, substance use treatment, and behavioral health. With experience across FQHCs, academic medical centers, and correctional health systems, he champions integrated care models that address social determinants of health and empower patients through shared decision-making.

As a thought leader, Derrick channels insight, innovation, compassion, and resourcefulness to guide individuals towards discovering their life’s purpose and defining their work. With a deep understanding of the transformative power of personal journeys, he serves as a beacon of inspiration in diverse settings. Derrick has worked across industries including corporate finance, financial services and restaurants. He currently serves as the Chief Financial Officer of Care Alliance Health Center and has held roles such as Director of Finance for The Economic Club of Chicago, Vice President Branch Manager for JP Morgan Chase Bank, District Director of Operations for PLS Finance, and Director of Training & Operations for MooreCo IV McDonald’s Franchise.

In the realm of finance, his expertise shines through leveraging insight and strategic thinking to navigate the complexities of financial landscapes and create pathways for prosperity and financial efficiency. He obtained his Bachelor’s Degree in Accounting from Indiana Wesleyan University, his MBA from Purdue Global University and his Doctorate from Purdue Global University, with a focus in Leadership and Innovation. This unique blend of experience and financial acumen sets him apart, allowing him to make a meaningful difference across various industries. Grounded in compassion and empathy, his work transcends boundaries, fostering progress and growth in both personal and professional realms.

David Siegel is a seasoned technology professional with over 25 years of experience in the technology field. After leaving Progressive Insurance David entered the non profit world to find opportunities to help organizations through the benefits of technology. David has led many initiatives including ERP and EMR rollouts, virtual and cloud migrations as well as onboarding organizations to using networks and shared resources. From 2003 until joining Care Alliance David has held the title of Director of Information Technology at Eliza Bryant Village. David joined Care Alliance as Chief Information Officer in October of 2021.

Dr. Chineze (Dr. E) Enwonwu, DMD, was born in Cleveland and raised in Nigeria before returning to her birthplace for college—an experience that has made Cleveland feel like a second home. She is deeply involved in the professional dental community, actively participating in several organizations including the American Association of Women Dentists, the Smiles for Success Foundation, the National Network for Oral Health Access, the Greater Cleveland Dental Society, and the Ohio Dental Association. Across these groups, she serves on numerous committees, demonstrating her commitment to advancing the field of dentistry. In addition to her professional affiliations, Dr. Enwonwu remains engaged with her alma maters and currently serves on the alumni board of directors at her dental school. Outside of her work, she enjoys binge-watching Netflix shows and cherishes time spent with her family.