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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. Jean Hermsen:

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Education & Awards

Dr. Hermsen graduated from Des Moines University.


Dr. Hermsen has 2 hospital affiliations:

  • Marshalltown Medical & Surgical Center 
  • Mary Greeley Medical Center 

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Additional Information
Dr. Jean Dorthy Hermsen DO is a female Otolaryngologist, has 4 years of experience and practices in Otolaryngology.
Where does Dr. Jean D. Hermsen practice?
Dr. Jean Hermsen has 2 office locations.
Dr. Jean Hermsen practices Otolaryngology near Ames, IA.
Additional practice locations include: Marshalltown, IA.
See Ames Otolaryngologists.