John C. Allen is a Internal Medicine Physician based in Baltimore, MD. John C. Allen practices in Baltimore, MD and has the professional credentials of MD. The NPI Number for John C. Allen is 1023436839 and holds a License No. D83158 (Maryland).
The current practice location address for John C. Allen is 22 S Greene St, Baltimore, MD and can be reached out via phone at 672-141-5156 and via fax at 410-328-3577.
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