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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).

Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. John Greinwald is Excellent. Dr. Greinwald has been reviewed by 1 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Specialties & Research

Dr. John Greinwald, MD is board certified in Otolaryngology.

  • He has special expertise in 2 areas:
  • Laryngeal Diseases
  • Otology

Education & Awards

Dr. Greinwald graduated from Medical University of South Carolina, Charleston.


Dr. Greinwald has 8 hospital affiliations:

  • Good Samaritan Hospital 
  • Bethesda North Hospital 

> > > > Dr. John Greinwald, MD

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Additional Information
Dr. John Herman Greinwald MD is a male Otolaryngologist, has 24 years of experience and practices in Otolaryngology.
Where does Dr. John H. Greinwald practice?
Dr. John Greinwald has 7 office locations.
Dr. John Greinwald practices Otolaryngology near Mason, OH.
Additional practice locations include: Liberty Township, OH and Dayton, OH.
See Mason Otolaryngologists.