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License & Identifications

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. Carlo Castillo:

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Education & Awards

Dr. Castillo graduated from Kansas City University of Medicine.


Dr. Castillo has 4 hospital affiliations:

  • St. John Hospital & Medical Center 
  • St. John Macomb-Oakland Hospital (Macomb Center) 

> > > > Dr. Carlo Castillo, DO

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Additional Information
Dr. Carlo Golez Castillo DO is a male Internist and practices in Internal Medicine and Nephrology.
Where does Dr. Carlo G. Castillo practice?
Dr. Carlo Castillo has 2 office locations.
Dr. Carlo Castillo practices Internal Medicine and Nephrology near Huntsville, AL.
Additional practice locations include: Warren, MI.
See Huntsville Internists and Huntsville Nephrologists.