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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 (2)

The overall average patient rating of Dr. John Karth is Good. Dr. Karth has been reviewed by 8 patients who have provided 2 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. John Karth, MD is board certified in Ophthalmology.

  • He has special expertise in 1 area:
  • Retina Surgery

Education & Awards

Dr. Karth graduated from Johns Hopkins University, Baltimore.


Dr. Karth has 10 hospital affiliations:

  • Sacred Heart Medical Center 
  • Cottage Grove Hospital 

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Additional Information
Dr. John William Karth MD is a male Ophthalmologist, has 10 years of experience and practices in Ophthalmology.
Where does Dr. John W. Karth practice?
Dr. John Karth has 1 office location.
Dr. John Karth practices Ophthalmology near Eugene, OR.
See Eugene Ophthalmologists.