CHOC Docs :: Provider Profile

Katrina J Tesmer, MD



Board Certified:
Neonatal-Perinatal Medicine


Dr. Tesmer is on staff at CHOC Children's Hospital & CHOC Children's at Mission Hospital

CHOC Children's Hospital
1201 W La Veta
Orange, CA 92868
map & directions

Western Medical Center
1001 N. Tustin Ave.
Santa Ana, CA 92705
map & directions

St. Jude Medical Center
101 E. Valencia Mesa Dr.
Fullerton, CA 92835
map & directions

Physician Bio

Katrina Tesmer, M.D. provides the full range of neonatal medical services. Dr. Tesmer serves as the Medical Director of the Neonatal Intensive Care Unit at Western Medical Center in Santa Ana. Dr. Tesmer is board certified in pediatrics and neonatal-perinatal medicine. She served her fellowship and residency through the University of Southern California and White Memorial Medical Center in Los Angeles, respectively. She graduated from the Medical School of Gdansk, Poland and completed her internship at Mlava Hospital in Poland.

Administrative Appointments

  • Neonatology, CHOC Children's Specialists


  • Medical School
    Gdansk Medical Academy, Gdansk, Poland
  • Pediatrics Residency
    White Memorial Medical Center, Los Angeles, CA
  • Neonatology Fellowship
    Los Angeles County University of Southern California

Board Certifications

  • Neonatal-Perinatal Medicine
    American Board of Pediatrics

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UC Irvine

CHOC Children's is affiliated with the UC Irvine School of Medicine