Executive Staff

The PrimaryOne Health Executive Team is comprised of department leaders who are responsible for carrying out our mission of providing high quality services and maintaining our vision of universal equality.


Charleta B. Tavares

Chief Executive Officer CEO

Charleta B. Tavares assumed the Chief Executive Officer of Columbus Neighborhood Health Center (CNHC), Inc. position in February 2015. The mission of the organization is to provide access to services that improve the health status of families including people experiencing financial, social or cultural barriers to healthcare.

Charleta is a local, state and nationally recognized, health, human services, cultural competence and health equity advocate and policymaker. Tavares previously served as the Executive Director of the Multi-ethnic Advocates for Cultural Competence (MACC), a statewide non-profit membership organization whose mission is to enhance the quality of care in Ohio’s health care system and to incorporate culturally competent models of practice into the systems and organizations that provide services to Ohio’s diverse populations.

During her tenure, the organization conducted the first ever statewide cultural competence mental health needs assessment for thirteen racial, ethnic and cultural communities (2006, 2008 and 2010); and she initiated and worked with eleven departments and agencies in Ohio to adopt the first in the country statewide cultural competence definition. In addition, she created the Somali Rapid Response System Service Coordination Team to help agencies with interpretation and cultural understanding and assist Somali individuals/families learn to navigate the various local systems of care and service. The organization developed a bi-lingual guide on “How to Navigate Social Services in Ohio” for both the Somali and Latino communities.

Tavares previously served as a member of the boards of: Community Research Partners (former chair and founding member); Access Health Columbus; Columbus Compact; the National Black Caucus of Local Elected Officials (President); and National League of Cities’ (NLC) Advisory Council (past chair). She also served as a member of the Board of the NLC, chair of the NLC Human Development Committee and as a Commissioner of the Ohio Commission on Minority Health. She served as a member of the Ohio House of Representatives (1993-98) and Columbus City Council (1999-2010). She presently serves as a member of the Ohio Senate (2011-present) where she serves as the Assistant Minority Leader.

Tavares is providing leadership in several collaborative efforts throughout the state and region to address health and other human service disparities among racial, ethnic and cultural communities. The collaborations include the Ohio Statewide Health Disparities Collaborative, Region V Health Equity Council, SAMHSA Community and Faith Initiative, Franklin County Community Conversations on Mental Health to name a few. In addition, she served as founding member and chair Emerita of the Ohio Suicide Prevention Foundation. She currently chairs the National WAND Education Fund board.

Ms. Tavares has served at the local, state and national levels as a trainer, policymaker, administrator, and/or elected official specializing in cultural competence, behavioral physical health, social services, child welfare, housing and criminal justice issues. She has presented workshops, lectures and presentations on cultural competence, health disparities, behavioral and physical health integration, social and criminal justice etc.

Michelle Ingmire

Chief Operating Officer

Michelle is an accomplished healthcare executive with over 20 years of experience in fostering organizational growth and innovative change with both small and large companies.  Michelle previously served as the CEO of Konza Prairie Community Health Center (FQHC) in Junction City Kansas.  During her tenure, a new facility was built that doubled the clinical capacity, was one of the first FQHCs in Kansas to add behavioral health, worked at the State and Congressional level on healthcare legislation that would impact FQHCs.

Michelle managed the business portfolio for eleven departments at St. Francis Hospital in Topeka, Kansas.  During her tenure at the hospital, she successfully wrote the business plan for the bariatric center of excellence and the addition of the brain lab for the surgical suite, reduced orthopedic implant cost by consolidating vendors by $2 million, saved $2.5 million by a reduction in dependency on locum coverage and reduced surgical room turnover time by 35%.

Michelle served as the Administrator for Faith Regional Surgery Center in Norfolk, Nebraska.  During her tenure, she increased revenue by 400%, service-line expansion increased by 32%, an orientation program for new surgeons was developed and Teddy Bear Hospital was introduced to the local school system.

Michelle served as the Administrator for a new Surgery Center in Columbus Ohio. During the opening, all State and Federal inspections were passed the first time with minimal findings. The Surgery Center realized a positive cash flow eight months earlier than projected, owner distributions exceeded budget by 30% the second year, and patient satisfaction scores routinely stayed in the 90th percentile.

Prior to joining PrimaryOne Health Michelle worked for OhioHealth as an Administrator of a large practice and two smaller practices with multiple locations and a diagnostic testing center.  During her tenure at OhioHealth she opened one new satellite location, added on additional space at two locations and five new providers were added to the practices.  Operationally, a new EMR system was added, an employee newsletter was developed, bi-annual employee engagement activities were developed, employee-centered committees were developed to create buy-in and to positively grow the organizational culture.

Michelle earned her DBA for Nova Southeastern University and her MBA from Friends University. She also served in the United States Army.

Michelle believes in simplicity in life and work. Focus on what is important and success reveals itself. Take care of your people, focus on your patients and act on what is important.

Dewitt Harrell

Chief Financial Officer

Dewitt Harrell joined PrimaryOne Health in March, 2017.  Prior to joining PrimaryOne Health, Dewitt spent two years as a key architect and contributor to Columbus Area Integrated Health Services non-profit’s Transformation 2020 plan and was their CFO/COO.  He led initiatives in Finance, Accounting, Admissions, Primary Care, Billing, Information Technology/EHR, Procurement, Operations, Project Management and Management Team.

Dewitt served as the CFO for the Columbus Metropolitan Library for six years where he was responsible for Finance, Accounting, Budgeting, Human Resources, Information Technology and Facilities/Buildings.  During his tenure, Mr. Harrell was recognized as CFO of the Year by Business First Magazine.

He gained significant experience from his seven years at Deloitte Consulting where he provided innovative solutions across various industries including public utilities, state / local government, automotive and healthcare.   In particular, he worked on key initiatives with healthcare organizations such as Healthcare of America, HealthPartners, TriHealth, and Cardinal Health.  His business career originated in the natural gas energy industry at the East Ohio Gas Company in Cleveland, Ohio.

Dewitt earned his Executive Masters of Business Administration from the Case Western Reserve University’s Weatherhead School of Business and his Bachelor of Science degree in Accounting from the Florida A&M University School of Business.

He is actively involved in the community and serves on several boards/committees: Workforce Development formerly Central Ohio Workforce Investment Corporation /OhioMeansJobs, Gahanna Jefferson Education Association; Business Advisory Board; Schools Planning Committee, and the City’s Tax Appeal.   He previously served as a National board member and former State Chair for the Institute of Management Accountants.

Tolbert, John

John Tolbert

Chief Community Services Officer

John Tolbert joined CNHC in March of 2013 as the Director of Community Services. Before coming to CNHC, John served as the Director of the Community Health Division for 11 years within the City of Columbus Public Health Department where he assisted in the development of the Chronic Disease Prevention and Health Equity programs. He has worked within the Columbus community for over 27 years in the areas of human services and public health. As CNHC’s Director of Community Services, John is responsible for informing the community of the many services and programs that CNHC has to offer, as well, he works closely with agencies, community leaders and other health organizations in a collaborative effort to accomplish the mission of CNHC by providing information and access to services that improve the health status of families and individuals in our community.

Prior to his work with the city, John was the Department Chairperson for the Medical and Sport Services department at Columbus State Community College where he worked with faculty and staff in the attainment and maintenance of accreditation standards for the largest community college in Central Ohio. John holds a Masters in Public Administration from Central Michigan University and undergraduate degree from Wilberforce University.


Jeffrey Marable, MD

Chief Clinical Officer CCO

Dr. Marable is a board certified obstetrician/gynecologist with over 25 years of experience. He joined PrimaryOne Health in 2010 after previously working for an FQHC in Phoenix, AZ. He received his medical degree from New York Medical College and completed his residency training at Beth Israel Medical Center, Mount Sinai School of Medicine in New York City.

Dr. Marable has served as the Medical Director for Women’s Health since 2012 and is widely recognized as a leader in women health services, healthcare integration, patient advocacy, and community engagement. He previously served two terms as Senior Management Team Facilitator and member of several clinical leadership committees at the state and local level.  He also serves as Medical Director of Women’s Health and Family Services for Columbus Public Health, one of our vital community partners.  He is an Adjunct Instructor, in Obstetrics and Gynecology, at The Ohio State University and a Clinical Instructor at Ohio University Heritage College of Osteopathic Medicine.

Dr. Marable will oversee the clinical operation, coordination of care, practitioner strategic engagement activities, and clinical quality of care projects. He will wield influence throughout all service lines, while serving as the primary clinical voice for strategy and medical program decisions.