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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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Dr. Mason has 2 hospital affiliations:

  • Northwestern Memorial Hospital 
  • John H Stroger Jr Hospital of Cook County 

> > > > Dr. Thomas Mason, MD

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Additional Information
Dr. Thomas Andre Mason MD is a male Internist and practices in Internal Medicine.
Where does Dr. Thomas A. Mason practice?
Dr. Thomas Mason has 1 office location.
Dr. Thomas Mason practices Internal Medicine near Chicago, IL.
See Chicago Internists.