R. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care Medicine

Dr. R. Steven Tharratt reviews medical content for Healthwise, a nonprofit organization with a mission to help people make better health decisions. Dr. Tharratt is an internist who specializes in pulmonology, medical toxicology, and emergency medical services. He is a professor of Medicine and Anesthesiology at the University of California Davis Medical Center in Sacramento, California, where he also is vice chief of the Division of Pulmonary/Critical Care Medicine and chief of the Section of Clinical Pharmacology and Medical Toxicology in the Division of Pulmonary and Critical Care Medicine. In addition, he serves as medical director of both the Sacramento County Emergency Medical Services and the Sacramento city and county fire departments.

Board Certifications

American Board of Emergency Medicine—2007–2017
American Board of Internal Medicine—1986
American Board of Medical Toxicology—1988
Subspecialty Certification in Pulmonary Diseases (ABIM)—1988
Certificate of Special Qualifications in Critical Care Medicine (ABIM)—1999-2009
American Board of Emergency Medicine, Certificate in Special Qualifications in Medical Toxicology—2004-2014

Special Certifications

Federal Aviation Administration, Aviation Medical Examiner

Healthwise Knowledgebase Topics Reviewed

Acute Bronchitis
Blood Alcohol
Carbon Monoxide (CO)
Cystic Fibrosis
Sleep Apnea


MD: UCLA School of Medicine, 1983
MPVM: University of California Davis School of Veterinary Medicine, 2001
Internal Medicine Internship: University of California Davis Medical Center, 1983–1984
Internal Medicine Residency: University of California Davis Medical Center, 1984–1986
Fellowship: Pulmonary Medicine and Clinical Toxicology, University of California Davis Medical Center, 1986–1988

Academic/Hospital Appointments

University of California Davis Medical Center:
  • Professor of Medicine and Anesthesiology
  • Vice Chief, Division of Pulmonary/Critical Care Medicine
  • Chief, Section of Clinical Pharmacology and Medical Toxicology, Division of Pulmonary and Critical Care Medicine

Professional Affiliations

American Academy of Clinical Toxicology
American College of Chest Physicians
American College of Critical Care Medicine
American College of Emergency Physicians
American College of Medical Toxicology
American College of Physicians
National Association of EMS Physicians
National Board of Medical Examiners
Society of Critical Care Medicine

Selected Publications

  1. Albertson TE, Walby WF, Allen RP, Tharratt RS (1995). The pharmacology and toxicology of three new biologic agents used in pulmonary medicine. Journal of Toxicology—Clinical Toxicology, 33(5): 427–438.
  2. Weg JG, Balk RA, Tharratt RS, et al. (1994). Safety and potential efficacy of an aerosolized surfactant in human sepsis-induced adult respiratory distress syndrome. JAMA, 272(18): 1433–1438.
  3. Yoneda KY, Tharratt RS (1997). Intrathoracic neoplasms other than bronchogenic carcinoma. Current Opinions in Pulmonary Medicine, 3(4): 257–264.

Financial Disclosure

Received speaking honoraria from Boehringer Ingelheim.

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