Nurse Practitioner | Nurse Practitioner Bio

Katie Varrone, RN, MSN, CPNP-PC

Allergy, Immunology and Pulmonary Medicine
Phone: (314) 454-2694

Katie completed her Master of Science in Nursing at Saint Louis University and received her Pediatric Nurse Practitioner certification through the Pediatric Nursing Certification Board. She specializes in Pediatric Immunology through the Jeffrey Modell Center at St. Louis Children’s Hospital. Katie has a special interest in managing children with Primary Immune Deficiencies on immunoglobulin replacement therapy and is passionate about educating patients and their families regarding their care and treatment.


  • Bachelor of Science in Nursing, Avila University, Kansas City, MO
  • Master of Science in Nursing, Saint Louis University, Saint Louis, MO

Licensure and Board Certification

  • Registered Nurse, State of Missouri
  • Certified Pediatric Nurse Practitioner, Pediatric Nursing Certification Board
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