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. Alexander Ryan:
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Dr. Ryan has 2 hospital affiliations:
- Memorial Medical Center
- Memorial Hospital
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- Additional Information
- Where does Dr. Alexander T. Ryan practice?
Dr. Alexander Ryan practices Radiology and Diagnostic Radiology near Springfield, IL.
Additional practice locations include: Belleville, IL.
See Springfield Radiologists.