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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. Geraldine Diaz:

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Specialties & Research

Dr. Geraldine Diaz, DO is board certified in Anesthesiology and Anesthesiology - Critical Care Medicine.

Education & Awards

Dr. Diaz graduated from Philadelphia College of Osteopathic Medicine.


Dr. Diaz has 3 hospital affiliations:

  • University Physicians Hospital at Kino 
  • University Medical Center 
  • New York Presbyterian HospitalColumbia Presbyterian Center 


  • Spanish
  • Tagalog

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Additional Information
Dr. Geraldine Castro Diaz DO is a female Anesthesiologist, has 11 years of experience and practices in Anesthesiology and Critical Care Medicine.
Where does Dr. Geraldine C. Diaz practice?
Dr. Geraldine Diaz has 2 office locations.
Dr. Geraldine Diaz practices Anesthesiology and Critical Care Medicine near Chicago, IL.
Additional practice locations include: Tucson, AZ.
See Chicago Anesthesiologists.