Our Leadership
Board of Trustees
The Board of Trustees is the governing body of CMDA. It is the final policy making body for all matters. The Board interprets and applies policies of the organization and establishes guidelines for the Chief Executive Officer and staff. It is responsible for the preparation of the annual budget with the Chief Executive Officer, supervises financial officers, and gives an accounting of the organization’s finances at the annual meeting of the House of Representatives.
House of Representatives
The CMDA House of Representatives exists to represent both the members and the Associations, so that: 1. The mission, vision, ministry, voice and governance of CMDA may reflect God's will as discerned by the membership; 2. The ministry opportunities and activities of CMDA can be communicated and implemented throughout its membership, the Church, and the community.
Want to Get Involved in the CMDA Board of Trustees or House of Representatives?
Executive Leadership
David Stevens, MD, M.A. (Ethics)
Prior to his service with CMDA, Dr. Stevens served as medical director of Samaritan’s Purse. In Somalia, Dr. Stevens led an emergency medical team that treated 45,000 suffering Somalis in the midst of war. In the Sudan, medical teams under his leadership treated more than 25,000 villagers to stop the spread of an epidemic.
From 1981 to 1991, Dr. Stevens was a missionary doctor at Tenwek Hospital in Bomet, Kenya where he served as Medical Superintendent and Executive Officer. At Tenwek, he directed a $4 million development plan, secured the installation of an $850,000 hydroelectric plant, oversaw the start of a nursing school and doubled the size of the hospital. The community healthcare and development programs he designed at Tenwek are currently reaching more than one million Kenyans and serves as an example of what medical outreach in the developing world can accomplish.
Dr. Stevens’ experiences provide rich illustrations for inspirational and educational presentations at seminars, medical schools, conferences and churches. His topics include stem cell research, human cloning, genetics, faith and health, physician-assisted suicide, international and community-based healthcare, emergency medical relief, abortion and other medically related subjects. He is the author of Jesus, MD, Beyond Medicine, co-author of Leadership Proverbs and Servant Leadership and writes many chapters and magazine articles. He is in demand to preach in local churches and at mission conferences.
Dr. Stevens holds degrees from Asbury University, is an AOA graduate of the University of Louisville School of Medicine and is board certified in family practice. He earned a master’s degree in bioethics from Trinity International University in 2002 and has served on the board of World Gospel Mission and Asbury University. He has regularly taught at the Christian Medical & Dental Associations' educational seminars for missionary healthcare professionals in Kenya, Malaysia and other forums. He currently serves as a Fellow of the Biotechnology Policy Council of the Wilberforce Forum. Dr. Stevens and his wife Jody have a son, Jason, and two daughters, Jessica and Stacy, and nine grandchildren.
Gene Rudd, MD
Dr. Rudd has also conducted international programs with World Medical Mission, where he established the Christian Medical Mission of Russia. He directed the rehabilitation of the Central Hospital in Kigali, Rwanda. Dr. Rudd has also served in Belarus, Bosnia, Kazakhstan, and India.
Dr. Rudd's experiences provide rich illustrations for inspirational and educational presentations. Dr. Rudd has communicated what God is doing through Christian medicine by speaking at seminars, conferences, and churches.
He and his wife, Gay, have four children: Jonathan, Deborah, Joshua, and David.
Mike Chupp, MD
From 1993 to 2016, Mike fit in nearly seven years of private general surgery practice as a missionary member of the Surgical Department of Southwestern Medical Clinic (a large Christian multi-specialty group) and Lakeland Regional Health System in St. Joseph, Michigan. Mike has been married to Pam for 26 years and they have four children: Steven, Melody, Kayla and Ashley. They recently completed 20 years of service as career missionaries with World Gospel Mission, serving at Tenwek Mission Hospital in Kenya. Mike wore several different leadership hats in Kenya including serving several years as the Assistant Country Director for WGM Kenya during the latter part of his missionary career. He continues to serve on the Friends of Tenwek Board of Trustees as Vice President and one of the founding members of this 501(c)3 organization.
Dr. Chupp testifies that he is an example of how life and ministry don’t always turn out the way you expect. In his words, “During my years of ministry at Tenwek Hospital, my surgical emphasis wasn’t on general surgery, but it was primarily on orthopedic trauma surgery. My work at the hospital also wasn’t what I had planned or expected over most of my career (80 to 90 percent of my time was devoted to administration and leadership for the hospital and WGM Kenya mission leadership). But God’s gifting and preparation and character development in our lives was not wasted. In 2015, Dr. David Stevens and Dr. Gene Rudd asked me to consider joining the executive leadership team at CMDA. Dr. Stevens was the Medical Director at Tenwek when I volunteered there as a medical student in 1988. He had a big influence on me to choose a career as a missionary surgeon there beginning in 1996. It is a great honor and exciting privilege to join the organization that has had the longest and most profound impact on my professional life as a Christian physician. Paul told Timothy in 2 Timothy 1:6-7 to ‘…fan into flame the gift of God, which is in you…’ (NIV 2011). We believe God asked us to join the CMDA team at this time to fan into flame God’s call and the Spirit’s gifts to healthcare professionals who love Jesus first…until He comes back.”
Senior Staff
William Griffin, DDS
A member of CMDA since dental school, Dr. Griffin has served on the Dental Advisory Council since 2013. He is a 1983 graduate of Virginia Commonwealth University School of Dentistry, and he has been practicing in Newport News, Virginia for 35 years. Dr. Griffin formerly served as Board Chairman and Dental Director at the Lackey Clinic, a Christian medical-dental clinic in Yorktown, Virginia. He averages four international dental mission trips each year, and he is passionate about opportunities to communicate the love of Christ to others, both domestically and internationally. Dr. Griffin is also a big fan of the Saline Solution/Grace Prescriptions conferences. He and his wife Linda have been married since 1983, and they have been blessed with two married children – Katherine and William, Jr., and one grandson – Barrett.
Patricia "Trish" Burgess, MD
Patricia “Trish” Burgess, MD, joined CMDA as the Global Health Outreach Director in 2018. Trish went to the University of Georgia for her undergraduate degree. She took two years off before attending medical school and worked as a firefighter in Athens, Georgia during this time. She attended the Medical College of Georgia and did her residency in emergency medicine at the University of Missouri in Kansas City. With Global Health Outreach, Trish has traveled to Cambodia, El Salvador, Ethiopia, India, Kenya, Moldova and Peru. Each trip is a blessing in that she sees Jesus in the very people she comes to help. The body of Christ she knows has grown across the globe as she travels to seek and serve the least, the last and the lost.
Jamey Campbell, CFRE
Jamey Campbell serves as Vice President for Stewardship Development for CMDA. Jamey completed his bachelor’s degree at East Tennessee State University (ETSU) in communications. In his career Jamey served in several communications positions, including on the staff of Senior Majority Leader Senator Dr. Bill Frist. He began his fundraising career at ETSU in leading the development effort for the Health Sciences Division before joining Precept Ministries International in 2000. Jamey and his wife Janeen live in Elizabethton, Tennessee, and they have two daughters and one grandson.
Susan Carter
Susan Carter joined CMDA in 2003 to design and develop its newest department, the Center for Medical Missions. Susan was born in Kokomo, Indiana. She is a graduate of Olivet Nazarene University where she earned a Bachelor of Science in Nursing. In 1991, Ms. Carter earned a Masters in Public Health from The Johns Hopkins School of Hygiene and Public Health.
Prior to joining CMDA she was employed by World Gospel Mission for 23 years, spending almost all that time at Tenwek Hospital in Bomet, Kenya. Throughout her years at Tenwek she progressed from clinical nursing, to co-designing and then leading Tenwek’s community health program and eventually to the position as the hospital’s chief executive officer.
Jonathan Imbody
Jonathan Imbody serves as Vice President for Government Relations and directs the Christian Medical Association's Washington Office. As CMA's liaison with the federal government, he has participated in over 30 White House meetings and events and makes over 200 personal contacts with Congressional leaders and government officials each year. Jonathan testified on euthanasia and assisted suicide before a U.S. Senate committee.
Michael Oldham
Michael Oldham joined the staff of CMDA in March 2013. He holds a master of accountancy degree from the University of Tennessee and has the professional designations of Chartered Global Management Accountant (CGMA) and Certified Public Accountant (CPA). He was previously CFO for 11 years with a Christian ministry headquartered in Chattanooga, Tennessee with a global focus, and he has been in the accounting field for 23 years. He is married to Pam and has four children, Paige, Anna, Rachel and Isaac.
Bill Reichart, MDiv
Bill is an ordained minister within the Presbyterian Church of America. With more than 25 years of ministry experience, Bill recently was the Atlanta area director with CMDA before moving into his current role with the ministry. Prior to CMDA, Bill worked on staff with Campus Crusade for Christ for more than 16 years. Throughout the years, Bill has worked with college students at University of Rhode Island, UVA and Towson University outside of Baltimore, MD - his hometown. Bill earned his M.Div from Reformed Theological Seminary in Orlando.
K. Scott Rimell
Scott is a graduate of Lindenwood University with a degree in Mass Communication. He was a director, editor, and producer of corporate television in the St. Louis area for 20 years before moving into digital medical publishing with Reed Elsevier; at the same time, adding website development to his skill set. In 2010 Scott was called to work with Precept Ministries International, serving for 6 years as Director of Marketing & Media. He has been with CMDA since late 2016 and is currently working on developing a branding structure and online presence for all of CMDAs ministries, as well as an email marketing and automation platform for the ministry.
Margie Shealy
Margie Shealy joined CMDA in 2002 with 22 years of experience in media and public relations. She was previously employed as the director of marketing and communications at Wellmont Health System in Kingsport, Tenn. Prior to Wellmont, she was the production manager for WJHL-TV, where she was responsible for all aspects of production for news, advertising and promotions. She is a graduate of East Tennessee State University, where she received a bachelor’s degree in Mass Communications and Speech. In 2012, she was inducted into ETSU’s Department of Communications Hall of Fame. She is on the Board of Directors for the National Embryo Donation Center and on the Advisory Board for the Patient Rights Action Fund.
Interested in Inviting Our Leadership to Speak at Your Event?
Thank you for your interest in requesting Dr. David Stevens, Dr. Mike Chupp, or Dr. Gene Rudd to speak for your event.
Please note the following speaking requirements must be fulfilled to be considered for a booking:
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Travel and lodging expenses paid in full to CMDA (arrangements made by the assistant to Dr. Stevens.)
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Minimum honorarium of $1,000 made payable to "CMDA"
