UCI Health will see you now: Welcome to our new co-workers and patients from Fountain Valley, Lakewood, Los Alamitos and Placentia Linda! 

UCI Health pulmonologist Dr. Timmy Cheng

Timmy Cheng, MD


Critical Care Medicine, Pulmonary Disease

Clinical Interests

critical care medicine

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  • American Board of Internal Medicine, Critical Care Medicine
  • American Board of Internal Medicine, Internal Medicine
  • American Board of Internal Medicine, Pulmonary Disease
  • English
  • Mandarin
  • Taiwanese
Medical School
UC San Diego School of Medicine
Santa Clara Valley Medical CenterInternal Medicine
UCI Medical CenterPulmonary Critical Care
Professional Positions
  • Assistant Professor — Division of Pulmonary Diseases & Critical Care Medicine, Department of Medicine, UCI School of Medicine
More Information

Dr. Timmy T. Cheng is a board-certified UCI Health pulmonologist who specializes in pulmonary and critical care medicine, lung disease, lung cancer, pulmonary hypertension and chronic obstructive pulmonary disease (COPD).

He earned his medical degree from the UC San Diego School of Medicine. He completed an internal medicine residency at Santa Clara Valley Medical Center in San Jose, Calif., followed by a fellowship in pulmonary and critical care medicine at UCI Medical Center.

Cheng, who also speaks Mandarin and Taiwanese, sees patients in Orange and Laguna Hills.

When he is not practicing medicine, he enjoys playing the piano and cello.

Pavilion 1
UCI Medical Center
101 The City Drive South, Building 30
Orange, CA 92868
Phone: 714-456-7720
UCI Health — Laguna Hills
23961 Calle de la Magdalena, Suite 200
Laguna Hills, CA 92653
Phone: 949-238-4100
Fax: 866-251-1363
UCI Health Chao Family Comprehensive Cancer Center
101 The City Drive South, Building 23
Orange, CA 92868
Phone: 714-456-8000
Fax: 855-211-3729