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. Everett Grahn:
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Specialties & Research
Dr. Everett Grahn, MD is board certified in Internal Medicine, Hematology, and Medical Oncology.
Education & Awards
Dr. Grahn graduated from University of Illinois at Chicago.
Dr. Grahn has 7 hospital affiliations:
- Chapman Medical Center
- Western Medical Center - Santa Ana