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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. Glenn Siegfried:

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Specialties & Research

Dr. Glenn Siegfried, MD is board certified in Emergency Medicine.

Education & Awards

Dr. Siegfried graduated from University of Missouri at Columbia.


Dr. Siegfried has 4 hospital affiliations:

  • St. Joseph Hospital - Eureka 
  • Mad River Community Hospital 

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Additional Information
Dr. Glenn Owen Siegfried MD is a male Emergency Medicine Specialist, has 32 years of experience and practices in Emergency Medicine.
Where does Dr. Glenn O. Siegfried practice?
Dr. Glenn Siegfried has 2 office locations.
Dr. Glenn Siegfried practices Emergency Medicine near Fortuna, CA.
Additional practice locations include: Eureka, CA.
See Fortuna Emergency Physicians.