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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).

> > > > Dr. Robert Ferris, DO

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Additional Information
Dr. Robert E Ferris DO is a male Internist and practices in Internal Medicine.
Where does Dr. Robert E. Ferris practice?
Dr. Robert Ferris has 1 office location.
Dr. Robert Ferris practices Internal Medicine near Germantown, MD.
See Germantown Internists.