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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

1.5
  •  
(8)
Patient comments (3)

The overall average patient rating of Dr. John Constantine is Below Average. Dr. Constantine has been reviewed by 8 patients who have provided 3 comments. The rating is 1.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.3
  •  
Promptness 1.4
  •  
Courteous Staff 2.3
  •  
Accurate Diagnosis 1.7
  •  
Bedside Manner 1.0
  •  
Spends Time with Me 1.4
  •  
Follows Up After Visit 2.1
  •  

Specialties & Research

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

  • He has special expertise in 1 area:
  • Lens Implants (Intraocular Lens Implantation)

Education & Awards

Dr. Constantine graduated from State University of New York at Buffalo. He has 2 awards.

Awards  
Castle Connolly's Top Doctors™ (2012 - 2013)
Castle Connolly Top Doctors: Boston™ (2009)

Affiliations

Dr. Constantine has 5 hospital affiliations:

  • Lowell General Hospital 
  • Saints Memorial Medical Center Inc 

Languages

  • Spanish
  • Vietnamese
  • Yiddish
  • Italian
  • Greek
  • French
  • Hindi
  • English

> > > > Dr. John Constantine, MD

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Additional Information
Dr. John Boland Constantine MD is a male Ophthalmologist, has 45 years of experience and practices in Ophthalmology.
Where does Dr. John B. Constantine practice?
Dr. John Constantine has 4 office locations.
Dr. John Constantine practices Ophthalmology near Chelmsford, MA.
Additional practice locations include: Lowell, MA and Tewksbury, MA.
See Chelmsford Ophthalmologists.