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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. William Diehl:

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Patient Reviews

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The overall average patient rating of Dr. William Diehl is Average. Dr. Diehl has been reviewed by 1 patients who have provided 0 comments. The rating is 3 out of 5 stars.

Specialties & Research

Dr. William Diehl, MD is board certified in Otolaryngology.

Education & Awards

Dr. Diehl graduated from Thomas Jefferson University, Philadelphia.


Dr. Diehl has 3 hospital affiliations:

  • Eastern Maine Medical Center 
  • Sebasticook Valley Hospital 
  • Mainegeneral Medical Center 


  • German
  • French

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Additional Information
Dr. William Harold Diehl MD is a male Otolaryngologist, has 50 years of experience and practices in Otolaryngology.
Where does Dr. William H. Diehl practice?
Dr. William Diehl has 1 office location.
Dr. William Diehl practices Otolaryngology near Augusta, ME.
See Augusta Otolaryngologists.