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. Erik Gierahn:
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Specialties & Research
Dr. Erik Gierahn, MD is board certified in Emergency Medicine.
Education & Awards
Dr. Gierahn graduated from University of Wisconsin at Madison.
Dr. Gierahn has 8 hospital affiliations:
- St. Mary's Hospital-Milwaukee
- Mission Community Hospital
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- Additional Information
- Where does Dr. Erik P. Gierahn practice?
Dr. Erik Gierahn practices Emergency Medicine near Van Nuys, CA.
Additional practice locations include: Franksville, WI and Milwaukee, WI.
See Van Nuys Emergency Physicians.