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Lloyd Friedman, MD

Critical Care Medicine, Pulmonology & Sleep Medicine
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Patient type treated
Accepting new patients
Referral required
From patients or physicians
Board Certified in
Internal Medicine and Pulmonary Disease


Lloyd Friedman, MD, is a pulmonary critical care specialist who primarily treats tuberculosis (TB), latent tuberculosis infection, and nontuberculous mycobacteria. He also cares for critically ill patients in the intensive care unit at Yale New Haven Hospital.

Dr. Friedman was inspired to become a doctor in New York City in the late 1980s, when the incidence of tuberculosis was increasing dramatically in the city, especially in areas affected by poverty. He has been following a cohort of welfare patients in New York to assess the incidence of tuberculosis, AIDS, and death.

The number of cases and incidence of TB has since declined dramatically, but Dr. Friedman still finds it rewarding to be able to support patients who have the disease. “TB requires a long-term treatment, and I get to know my patients over a period of months and years,” he says.


  • Professor
  • Director of Inpatient Quality and Safety, Internal Medicine

Education & Training

  • Fellow
    Yale University School of Medicine (1988)
  • Resident
    Oregon Health Sciences University (1982)
  • Intern
    Beth Israel Medical Center (1980)
  • MD
    Yale University (1979)
  • BA
    Columbia University, Biochemistry (1975)

Additional Information