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Katrina Tesmer, MD

Accepting New Patients

About Katrina Tesmer

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.
Medical School

Medical Academy of Gdansk


White Memorial Medical Center


White Memorial Medical Center


White Memorial Medical Center


LAC/USC Women and Children's Hospital

Board Certifications

  • American Board of Pediatrics, Neonatal-Perinatal Medicine
Affiliated Locations

Mission Hospital, Laguna Beach
St. Jude Medical Center
Mission Hospital, Mission Viejo
St. Joseph Hospital, Orange