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Internist, Critical Care Specialist, Pulmonologist (lungs)
40 years of experience
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Specialties & Research

Dr. William Schnarr, MD is board certified in Internal Medicine, Critical Care Medicine, and Pulmonary Disease.

  • He has special expertise in 1 area:
  • Asthma

Education & Awards

Dr. Schnarr graduated from University of Missouri at Columbia.


Dr. Schnarr has 4 hospital affiliations:

  • St Joseph Hospital West 
  • Barnes-Jewish St Peters Hospital 

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Additional Information
Dr. William Thomas Schnarr MD is a male Internist, has 40 years of experience and practices in Internal Medicine, Pulmonary Disease, and Critical Care Medicine.
Where does Dr. William T. Schnarr practice?
Dr. William Schnarr has 1 office location.
Dr. William Schnarr practices Internal Medicine, Pulmonary Disease, and Critical Care Medicine near Saint Charles, MO.
See Saint Charles Internists, Saint Charles Pulmonologists, and Saint Charles Critical Care Practitioners.