Page ContentKelsey-Seybold Leadership Changing Medicine. Changing Lives. Tony Lin, MD Chairman of the Board of Managers and Managing Director Tony Lin, M.D., joined Kelsey-Seybold Clinic in 1993 and is Kelsey-Seybold’s Chairman of the Board of Managers. Dr. Lin has been part of Kelsey-Seybold’s senior leadership team for many years and played an integral role in the multispecialty group’s development as an accredited Accountable Care Organization (ACO).View Complete Bio Patrick M. Carter, MD, MBA, FAAFP Chief, Family Medicine Medical Director, Care Coordination and Quality ImprovementDr. Carter has practiced medicine at Kelsey-Seybold Clinic since 1994. His specialties include Family Medicine and Geriatrics. Dr. Carter is board certified by the American Board of Family Medicine, and he holds the Certificate of Added Qualifications in Geriatric Medicine, granted by the American Board of Family Medicine. He is also certified as a Physician Executive by the American College of Physician Executives.View Complete BioView the complete list of Kelsey-Seybold leadership here.