Mark A Lorenzen, MD, F.A.A.P., is a native Texan. He graduated from Texas A&M University and then completed medical school and residency training at the University of Texas Medical Branch in Galveston in 1980. He practiced Pediatrics for 27 years in Waco, Texas before moving to Katy in 2008. Dr. Lorenzen is board certified in pediatrics and a member of the American Academy of Pediatrics, the Texas Pediatric Society, the Texas Medical Association, and the Harris County Medical Society. He is on the staff of Memorial Hermann Katy Hospital. Dr. Lorenzen is married to Regina and has raised 6 children. He has 8 grandchildren in the Katy area and 2 more in Waco. He is well versed in caring for patients from newborns through the teenage years. At this time Dr. Lorenzen sees patients at our Katy location.