Ardath Yamaga, MD

Attending Physician
Adjunct Clinical Associate Professor of Pediatrics, Keck School of Medicine of USC
Clinical Interests

Pediatric gastrointestinal liver diseases.


Medical School

Saint Louis University School of Medicine


Children's Hospital Los Angeles: Pediatrics


Children's Hospital Los Angeles: Pediatrics


Children's Hospital Los Angeles: Pediatric Gastroenterology



Pediatrics and Pediatric Gastroenterology: American Board of Pediatrics

Professional Memberships

American Academy of Pediatrics, North American Society for Pediatric Gastroenterology & Nutrition, American Association for the Study of Liver Diseases


Children’s Hospital Los Angeles Research Institute Poster Session, 2000; Pasadena Top Doctors, 2011


Yamaga A and Ou J-H. Membrane topology of HCV NS2 Protein. Hepatology, 34(4) Part 2: 560A, Abstract 1552, 2001.

Pietzak MM, Wolfe A, Rongey C, Thomas DW, Bergwerk A, Duh GZ, Naon H, Quiros A, Sinatra FR, Yamaga A, Pitukcheewanont P, Fisher L, Devoe D, Krantz J, Monarch E, Berti I, Gerarduzzi T, Thorpe M, Kryszak D, Horvath K, Fasano A. Celiac disease in at-risk groups in southern california. Gastroenterology, 122(4): A181, Abstract S1199, 2002.

Yamaga AK, Choi J, Ou J-H. Effects of ribavirin and interferon on the replication of the hepatitis c virus subgenomic RNA replicon. International Symposium on Hepatitis C & Related Viruses (San Diego, CA): 100, 2002

Yamaga AK, Ou J-H. Membrane topology of the hepatitis c virus NS2 protein. Journal of Biological Chemistry, 277: 33228-33234, 2002.

Roundtree BC, Bergwerk A, Naon H, Pietzak M, Sinatra F, Yamaga A, Kovanlikaya A, Thomas D. Scoping out childhood recurrent abdominal pain (RAP). Gastroenterology 124(4) Suppl: 163, Abstract M1724, 2003.


Major areas of interest, include: molecular studies with liver and gastrointestinal disorders. Ongoing research studies, include: 1. Molecular microbiology of the nonstructural 2 protein of the Hepatitis C. Virus. 2. The role of small intestinal bacterial overgrowth in children with chronic abdominal pain.

CHLA - Pasadena

630 S Raymond Ave
Pasadena, CA 91105
United States