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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. Gregory Blaha is Excellent. Dr. Blaha has been reviewed by 4 patients who have provided 0 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.1
Promptness 3.7
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. Gregory Blaha, MD, PHD is board certified in Ophthalmology.

  • He has special expertise in 2 areas:
  • Retina Surgery
  • Retinal Disorders

Education & Awards

Dr. Blaha graduated from University of Pennsylvania , Philadelphia.


Dr. Blaha has 4 hospital affiliations:

  • Lahey Clinic 
  • Baystate Franklin Medical Center 

> > > > Dr. Gregory Blaha, MD, PHD

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Additional Information
Dr. Gregory Robert Blaha MD and PHD is a male Ophthalmologist, has 12 years of experience and practices in Ophthalmology.
Where does Dr. Gregory R. Blaha practice?
Dr. Gregory Blaha has 2 office locations.
Dr. Gregory Blaha practices Ophthalmology near Peabody, MA.
Additional practice locations include: Derry, NH.
See Peabody Ophthalmologists.