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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. Gregory Johnston:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

1.5
  •  
(5)
Patient comments (4)

The overall average patient rating of Dr. Gregory Johnston is Below Average. Dr. Johnston has been reviewed by 5 patients who have provided 4 comments. The rating is 1.5 out of 5 stars.

Patient Ratings
Ease of Appointment 2.7
  •  
Promptness 2.0
  •  
Courteous Staff 3.3
  •  
Accurate Diagnosis 1.0
  •  
Bedside Manner 1.0
  •  
Spends Time with Me 1.0
  •  
Follows Up After Visit 1.0
  •  

Specialties & Research

  • He has special expertise in 1 area:
  • Flu (Human Influenza)

Education & Awards

Dr. Johnston graduated from Universidad Central Del Caribe, Bayamon.


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Additional Information
Dr. Gregory Scott Johnston MD is a male General Practitioner, has 24 years of experience and practices in General Practice.
Where does Dr. Gregory S. Johnston practice?
Dr. Gregory Johnston has 1 office location.
Dr. Gregory Johnston practices General Practice near Phoenix, AZ.
See Phoenix General Practitioners.