South California's Finest Allergist Dr. Ziegner has more than 28 years of clinical and research experience with an extensive background in internal medicine and double board certification in Pediatrics and Allergy/Immunology. Aside from being highly qualified to work with patients of all ages, she is renowned for her passion and dedication to her profession. She is as thorough as she is accommodating when answering questions. These qualities and more has earned her the respect and recommendation of allergy and asthma patients as well as her peers.