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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. Crystal Duffy, DO

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Additional Information
Dr. Crystal Michele Duffy DO is a female Pediatrician and practices in Pediatrics.
Where does Dr. Crystal M. Duffy practice?
Dr. Crystal Duffy has 6 office locations.
Dr. Crystal Duffy practices Pediatrics near Newtown, PA.
Additional practice locations include: Langhorne, PA and Philadelphia, PA.
See Newtown Pediatricians.