Cardinal Glennon ENT Clinic

Katie Gruenkemeyer RN, MSN, CPNP, is a board-certified nurse practitioner at SSM Health Cardinal Glennon Children’s Hospital. She received both her Bachelor of Science in Nursing and her Master of Science of Nursing from Saint Louis University. Katie is the pediatric nurse practitioner for the solid organ transplant team and sees patients from birth to 21 years old.

Dr. Joanna Kemp is a neurosurgeon who treats patients of all ages, including newborns, children, and adults. She treats craniofacial and other congenital brain/spine disorders; hydrocephalus; spinal dysraphism/myelomeningocele; brain and spine tumors; head trauma; traumatic brain and spine injuries; spasticity; epilepsy; vascular malformations; and idiopathic intracranial hypertension. She is also interested in neuro-oncology. Dr. Kemp is an associate professor with the Division of Neurosurgery and Pediatric Neurosurgery in the Department of Surgery at Saint Louis University School of Medicine. She's also a member of the American Association of Neurological Surgeons.

H. Thomas Johnson, MD, is board-certified in sleep medicine and family medicine. He works as a pediatric and adult sleep specialist. He has been in practice in the St. Louis area since 2007. He graduated from the University of Missouri-Columbia with his medical degree and completed his residency at St. Vincent’s HealthCare in Jacksonville, Fla. After completing his residency, Dr. Johnson practiced family medicine for five years. He then went on to complete a fellowship in sleep medicine at Saint Louis University before joining SSM Health. Dr. Johnson has also served as the President of the Missouri Sleep Society and is involved in the American Academy of Sleep Medicine.