Dr. Timothy J. Killeen, MD

Expert Publications

• Climate change, deforestation, and the fate of the Amazon.
• Thirty years of land-cover change in Bolivia.
• Conservation strategies to mitigate impacts from climate change in Amazonia.
• Drought sensitivity of the Amazon rainforest.
• Drought-mortality relationships for tropical forests.
• The effectiveness of contrasting protected areas in preventing deforestation in Madre de Dios, Peru.
• Quantifying changes in flooding and habitats in the Tonle Sap Lake (Cambodia) caused by water infrastructure development and climate change in the Mekong Basin.
• The flood pulse as the underlying driver of vegetation in the largest wetland and fishery of the Mekong Basin.
• Fast demographic traits promote high diversification rates of Amazonian trees.
• Hyperdominance in Amazonian forest carbon cycling.
• Markedly divergent estimates of Amazon forest carbon density from ground plots and satellites.

Media Releases

Get to know Pulmonologist Dr. Timothy J. Killeen, who serves patients in Temecula, California.

A seasoned professional in the field of pulmonology, Dr. Killeen is specially trained in diseases and conditions of the chest. He has been practicing in Temecula, California and surrounding areas since 1990, seeing patients at his private practice – Timothy J. Killeen, M.D., Inc.

Providing personalized care for pulmonary needs, the doctor offers diagnosis and treatment for a number of conditions such as adult cystic fibrosis, asthma, bronchiectasis, bronchoscopy, chronic cough, COPD, dyspnea, emphysema, hereditary lung disease, interstitial lung diseases, lung cancer, nontuberculous mycobacterial infection, pleural effusion, pneumonia, pulmonary embolism, pulmonary fibrosis, pulmonary hypertension, pulmonary vascular diseases, sarcoidosis, shortness of breath, and tuberculosis. Utilizing state-of-the-art equipment, he and his knowledgeable team are well known for their professional service, friendly support, affordable prices, efficient assistance, and honest answers. 

With a strong reputation throughout the community, Dr. Killeen has privileges at Temecula Valley Hospital, Rancho Springs Medical Center, and Inland Valley Regional Medical Center.

His journey into medicine began after he earned his medical degree from the Loma Linda University School of Medicine in 1984. Upon graduation, he went on to perform his residency in internal medicine and his fellowship in pulmonary disease at Loma Linda University Medical Center in 1987 and 1990, respectively. 

Fully-trained for bronchial thermoplasty with Boston Scientific, he is a member of the American College of Physicians and the American College of Chest Physicians.

With years of education and experience, Dr. Killeen is board-certified in internal medicine and pulmonary disease by the American Board of Internal Medicine (ABIM). The ABIM is a physician-led, non-profit, independent evaluation organization driven by doctors who want to achieve higher standards for better care in a rapidly changing world.

Pulmonology is a medical specialty that deals with diseases involving the respiratory tract. A pulmonologist is an internal medicine physician who specializes in preventing, diagnosing, and treating conditions and diseases that affect the lungs, bronchial tubes, and the respiratory system, including the nose, pharynx, and throat.

Voted in the top 1% of America’s Most Honored Professionals, Dr. Killeen has also been honored with the Patient’s Choice Award in California for over a decade.

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