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. Gerald Marshall:
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Specialties & Research
- He has special expertise in 1 area:
- Flu (Human Influenza)
Education & Awards
Dr. Marshall graduated from Saint Louis University.
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- Additional Information
- Where does Dr. Gerald Marshall practice?
Dr. Gerald Marshall practices General Practice near Phoenix, AZ.
See Phoenix General Practitioners.