KayKay San, DO

John Puetz, MD is a highly respected pediatrician specializing in pediatric hematology and oncology. With locations in Warrenton, Troy, and St. Louis, Missouri, Dr. Puetz provides comprehensive care for patients ages 0 through 18 years. His medical interests include new drug development, platelet disorders, thrombophilia, thrombosis, and Von Willebrand disease. Dr. Puetz is certified by the American Board of Pediatrics and is affiliated with St. Joseph Hospital - Lake Saint Louis and Cardinal Glennon Children's Hospital. He received his medical education from Washington University School of Medicine and completed his fellowship at the University of Utah - Salt Lake City. Dr. Puetz is dedicated to providing exceptional care to his patients and is committed to advancing the field of pediatric hematology and oncology.Generated from the website

At SSM Health Cardinal Glennon Pediatrics located in Warrenton we care for children and their families with knowledge and expertise, understanding and patience. Our pediatricians, nurses and other health care professionals are trained to care specifically for children. We are committed not only to healing children today, but also finding new ways to help them get well in the future.

Sarah Burrus, PNP is a board certified pediatric nurse practitioner at SSM Health Cardinal Glennon Pediatrics. Sarah has over ten years of experience and has a strong focus on family-centered care. She has experience in general medicine, emergency medicine, trauma services, cardiac, pulmonary, gastrointestinal, neurology, renal, critical care, hematology, oncology, orthopedics and dialysis. Sarah provides pediatric care to newborns to the age of 18 and has a clinical interest in general pediatrics. She is a member of the National Association of Pediatric Nurse Practitioners.