Researchers examined physicians' treatment strategies for tuberculosis to determine whether they would follow recommendations of the Centers for Disease Control and Prevention and the American Thoracic Society. A national survey sampled 1772 physicians. Analyses tested correlates of recommended treatment regimens. Among respondents, 59.4% described a recommended regimen. Specialists; physicians aware of professional publications, treatment recommendations, and reporting requirements; and those having more than 50% of patients in nursing homes were more likely to describe recommended regimens. Physicians who had been in practice longer, relied on personal experience, or had more than 50% of patients receiving Medicaid were less likely to describe recommended regimens. Physicians who treat tuberculosis require training and support. Policymakers should consider who should treat tuberculosis and how recommended practice should be ensured.