Katherine Twombley, MD, FAAP, FAST

Chair, Department of Pediatrics 

Acting Chief, Pediatric Nephrology

Nemours Children's Health, Jacksonville

Professor, Department of Pediatrics, Mayo College of Medicine, Jacksonville

Short Form Bio

Katherine Twombley, MD, FAAP, FAST, is a Professor of Pediatrics with Mayo College of Medicine in Jacksonville, FL and she is the Chair of the Department of Pediatrics and acting chief of pediatric nephrology at Nemours Children's Health, Jacksonville. She joined Nemours Children’s in November 2025 after serving as division chief of pediatric nephrology and medical director of pediatric kidney transplantation as a full professor at the Medical University of South Carolina (MUSC) College of Medicine.

Dr. Twombley earned her Doctor of Medicine degree (MD) from the Medical University of South Carolina and performed her residency and internship in Pediatrics at Nicklaus Children's Hospital in Miami. She went on to complete a fellowship in Pediatric Nephrology at the University of Texas Southwestern Medical Center/Dallas Children's Hospital.

As an active researcher, Dr. Twombley has authored or co-authored medical textbook chapters and numerous peer-reviewed articles on nephrology topics. She is board-certified in Pediatrics and Pediatric Nephrology by the American Board of Pediatrics.

Long Form Bio

Katherine Twombley, MD, FAAP, FAST, is a Professor of Pediatrics at Mayo College of Medicine and she is the Chair of the Department of Pediatrics and acting chief of nephrology at Nemours Children's Health, Jacksonville. She joined Nemours Children’s in November 2025 after serving as division chief of pediatric nephrology and medical director of pediatric kidney transplantation as a full professor at the Medical University of South Carolina (MUSC) College of Medicine.

Dr. Twombley earned her Bachelor of Arts from the College of Charleston and her Doctor of Medicine from the Medical University of South Carolina. She completed a pediatrics residency and internship at Nicklaus Children's Hospital in Miami, followed by a fellowship in Pediatric Nephrology at the University of Texas Southwestern Medical Center/Dallas Children's Hospital.

Dr. Twombley is an active researcher and has authored or co-authored medical textbook chapters and numerous peer-reviewed journal articles on nephrology. She has also served as an expert reviewer for medical journals, evaluating papers, abstracts, and articles. In addition, she is board-certified in Pediatrics and Pediatric Nephrology by the American Board of Pediatrics.

Education and Training

Fellowship

Pediatric Nephrology — University of Texas Southwestern Medical Center/Dallas Children's Hospital, Dallas, TX

Residency and Internship

Pediatrics — Nicklaus Children's Hospital, Miami, FL

Doctor of Medicine (MD)

Medical University of South Carolina, Charleston, SC

Bachelor of Arts

College of Charleston, Charleston, SC

Academic Appointments

• Mayo College of Medicine- Professor (2026-Present)
• Medical University of South Carolina, College of Medicine- Adjunct Professor (2025-Present)
• Medical University of South Carolina, College of Medicine — Professor (2020–2025)
• Medical University of South Carolina, College of Graduate Studies — Professor (2019–2025)
• Medical University of South Carolina, College of Medicine — Associate Professor (2015–2019)
• Medical University of South Carolina, College of Medicine — Assistant Professor (2012–2015)
• University of Texas Southwestern Medical Center — Assistant Professor (2010–2012)

Professional Memberships

• International Society for Apheresis
• The Transplantation Society
• American Academy of Pediatrics
• American Society of Nephrology
• Pediatric Nephrology Research Consortium
• International Pediatric Nephrology Association
• International Pediatric Transplant Association – Current President
• American Society for Transplantation
• American Society of Pediatric Nephrology