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).
Learn more about Dr. Crystal Simpson:
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Dr. Simpson has 1 hospital affiliations:
- St. John Hospital & Medical Center
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- Where does Dr. Crystal C. Simpson practice?
Dr. Crystal Simpson practices Internal Medicine near Grosse Pointe, MI.
See Grosse Pointe Internists.