Floyd R. Livingston, MD


Primary Office

Nemours Children's Hospital, Florida Nemours Children's Hospital, Florida 6535 Nemours Parkway Orlando, FL 32827 Appointment: (407) 650-7715

Other Offices

Get to Know Me

I was raised in Southern California surfing Malibu Beach and skiing Tahoe. I enjoyed biology and physical sciences as a child, and graduated from UCLA with a BS in Biology. Before entering medical school, I worked as an emergency medicine technician. I’ve practiced pediatric pulmonary and sleep medicine in Central Florida for over 20 years.

Why I Treat Children

I experience immense satisfaction from treating and interacting with children of all ages. Every time I can get a child to smile and make a child feel better, it gives me a special feeling in my heart.

What I'm Passionate About

I’m passionate about access to health care for all children and providing patients with cutting-edge medical care, technology, and therapy.

How I Try to Make A Difference

I try to make a difference by staying educated on the best pulmonary and sleep medicine management and treatments for my patients, as well as participating in research studies to explore additional management strategies.

Education & Training


  • Pulmonary Medicine - Children's Hospital of Los Angeles, 1992

Internship Residency

  • Pediatrics - University of California Irvine Medical Center, 1988

Medical/Dental School

  • MD - Meharry Medical College, 1985

Board Certifications

  • American Board of Pediatrics/Pediatric Pulmonology
  • American Board of Pediatrics/Pediatric Sleep Medicine

Awards & Recognition

  • 2014 Best Doctors in America
  • 2013 Best Doctors in America
  • 2012 The University of Central Florida’s College of Medicine Teaching Award
  • 2011 Best Doctors in America
  • 1999 Florida Voluntary Health Association Medical Volunteer of the Year Award
  • 1994 Arnold Palmer Children’s Hospital Pediatric Faculty Award
  • 2016 Orlando Magazine Best Doctors 2016
  • 2015 Best Doctors in America

Insurance Accepted

  • Aetna Better Health FL Medicaid and Healthy Kids
  • Alabama Medicaid/Patient First
  • AmeriGroup GA MCAID HMO JAX/GA
  • AmeriGroup GA PeachCare For Kids Jax/GA
  • AmeriHealth Caritas Florida (FKA Prestige Health Choice)
  • AvMed
  • Blue Cross and Blue Shield HMO
  • Blue Cross and Blue Shield Non HMO
  • Blue Cross Blue Shield Florida Blue Select
  • Cigna & Great West HMO/POS Open Access
  • Cigna & Great West PPO/EPO
  • Community Care Plan Medicaid
  • Employers Health Network PPO
  • Evolutions Healthcare
  • First Health Aetna PPO/EPO
  • Florida Medicaid
  • Florida Medicare
  • Georgia Medicaid/Georgia Better Health/Peachcare
  • Health First Health Plans
  • HealthSmart Health Plans PPO
  • Humana HMO/POS
  • Humana PPO/EPO
  • Molina Healthcare Medicaid
  • Multiplan PPO
  • Olympus Managed Healthcare PPO ORL
  • Prime Health Services PPO Specialty Florida
  • Seminole Tribe of Florida
  • Simply Healthcare Healthy Kids
  • Simply Healthcare Medicaid HMO
  • Star Healthcare Network
  • Sunshine SMI/CMS 19 & 21
  • Sunshine State Health Plan Medicaid
  • Three Rivers Provider Network
  • Tricare/Humana Military Health Services/CHAMPVA
  • United Healthcare Commercial Products
  • United Healthcare Community Plan Medicaid
  • Volusia Health Network PPO/EPO

  • Apnea
  • Asthma
  • Cystic Fibrosis
  • Sleep Disorders

Research Activities

As Director of Pediatric Pulmonology for Nemours Children's Hospital in Orlando, I oversee all clinical and research functions for the Pulmonary Division and am responsible for research partnerships and collaborative initiatives with other sub-specialties and sponsors. I also have expertise in basic, clinical, and translational research in Cystic Fibrosis, Asthma, Sleep Medicine, Arousal and Ventilatory Responses, Oxidative Stress, and Alveolar Macrophage function. I have published collaboratively on several papers in the American Review of Respiratory Disease, Archives Biochemistry & Biophysics, Pediatric Pulmonology, American Journal of Respiratory Cell and Molecular Biology, Journal of Applied Physiology, Free Radical Biology & Medicine, Chest, Pediatrics, and the New England Journal of Medicine. Currently, my research interests are in Cystic Fibrosis Therapeutics, Pediatric Asthma Outcomes, Asthma Genomics, and Inflammatory Response in Pediatric Obstructive Sleep Apnea.

Our Nemours Aerosol Research Laboratory in Orlando was founded in 1999 to evaluate delivery of inhaled therapies. The delivery of drugs directly to the lungs by the inhaled route improves efficacy and reduces side effects for treatment of lung diseases such as cystic fibrosis (CF). Many of the new drugs are for treatment of CF lung disease. The CF Foundation estimates that there are more than two-dozen new drugs in development for the disease, and many require inhalation. Some of the new drug entities include inhaled antibiotics, airway wetting and clearance agents, long-acting bronchodilators, antioxidants, gene-modifying agents, and gene replacement therapy. With so many treatments for CF requiring inhalation, the time-burden on the patient is so great that non-adherence with therapy becomes a real problem. Therefore, this laboratory explores efficient new technologies to shorten treatment times and participates in clinical research projects designed to improve treatment adherence and study new therapies.

Nemours Orlando is in a unique position to advance the progress in inhaled drug development. Researchers have the capability of testing various drugs and delivery devices in the lab and have the clinical population and experience to carry that research forward into phase 1 through phase 3 testing. The unique strategy employed by the Aerosol Lab for clinical trials has led to success in enrollment and has allowed investigators to participate in the data analysis and present the data from multicenter trials both at meetings and in publications. The Lab opens up new avenues for patients to experience cutting-edge therapies and gives them hope for a better tomorrow. It also has allowed Nemours to participate on a national and international level to affect the care of children with CF and respiratory diseases.

  • Lang, J. E., Mougey, E. B., Hossain, M. J., Livingston, F., Babu Balagopal, P., Langdon, S., & Lima, J. J. (2019). Fish oil supplementation in overweight/obese patients with uncontrolled asthma a randomized trial. Annals of the American Thoracic Society, 16(5), 554-562. doi:10.1513/AnnalsATS.201807-446OC

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  • Sagel, S. D., Khan, U., Jain, R., Graff, G., Daines, C. L., Dunitz, J. M., & Shaffer, M. L. (2018). Effects of an antioxidant-enriched multivitamin in cystic fibrosis. American Journal of Respiratory and Critical Care Medicine, 198(5), 639-647. doi:10.1164/rccm.201801-0105OC

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  • Bouso, J. M., Burns, J. J., Amin, R., Livingston, F. R., & Elidemir, O. (2017). Household proximity to water and nontuberculous mycobacteria in children with cystic fibrosis. Pediatric Pulmonology, 52(3), 324-330. doi:10.1002/ppul.23646

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