Erin Donoan RNCPNP

Dr. Boldt joined Kidz Biz Pediatrics in the Summer of 2005.  He received his MD from the University of Nebraska Medical Center.  He completed his residency in Pediatrics at The Ohio State University/Nationwide Children's Hospital.  Dr. Boldt currently serves as Chairman of the Pharmacy and Therapeutics Committee at Mercy Jefferson Hospital. He is board certified.

Meet the Pediatric Team

Who We Are: Pediatricians and Nurse Practitioners

At  Kidz Biz Pediatrics, we provide personal, friendly service in a fun and caring environment for children of all ages. Our doctors are Board Certified Pediatricians. Our services range from diagnosis, to health and fitness analysis. Whether your child is sick or needs tips on how to stay healthy, we can help them and you better understand what is happening.

Copyright © Kidz Biz Pediatrics. All rights reserved.

Joshua P. Boldt  MD

Daniel G. Rudolph MD

Sarah Ross APRNBC

"Exceptional Care for Tots, Teens, and In-betweens"

Erin has been with Kidz Biz Pediatrics since 1999.  She sees patients in our Festus office on Tuesdays and Thursdays.  In addition to working in our office, she also works at Cardinal Glennon Children's Hospital. 

​Sarah joined the practice in the spring of 2016 She completed her training through SEMO and has over 30 years of pediatric nursing experience. She currently sees patients in either Farmington or Festus, depending on the day of the week.

Dr. Rudolph joined Kidz Biz Pediatrics in the Summer of 1999.  He received his MD from St. Louis University.  He completed his Pediatrics residency at Brooks Army Medical Center, San Antonio, Texas.  He is Board Certified.  He currently serves as Chairman for the Department of Pediatrics at Mercy Jefferson Hospital and is a member of the Medical Care Appraisal Committee and Medical Executive Committee.