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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 (8)

The overall average patient rating of Dr. Jack Greiner is Excellent. Dr. Greiner has been reviewed by 19 patients who have provided 8 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.7
Promptness 3.3
Courteous Staff 4.7
Accurate Diagnosis 4.5
Bedside Manner 4.6
Spends Time with Me 4.4
Follows Up After Visit 4.0

Specialties & Research

  • He has special expertise in 9 areas:
  • Cataract
  • Cataract Surgery
  • Conjunctival Diseases
  • Corneal Diseases
  • Corneal Transplantation
  • Dry Eye Syndromes
  • Eyelid Diseases
  • Pink eye (Allergic Conjunctivitis)
  • Refractive Surgical Procedures

Education & Awards

Dr. Greiner graduated from Midwestern University, Downers Grove. He has 2 awards.

Patients' Choice Award (2013)
Compassionate Doctor Recognition (2012 - 2014)


Dr. Greiner has 19 hospital affiliations:

  • Beth Israel Deaconess Medical Center 
  • Winchester Hospital 


  • Spanish
  • Chinese
  • English

> > > > Dr. Jack Greiner, DO, MD, PHD

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Additional Information
Dr. Jack Volker Greiner DO, MD, and PHD is a male Ophthalmologist, has 30 years of experience and practices in Ophthalmology.
Where does Dr. Jack V. Greiner practice?
Dr. Jack Greiner has 2 office locations.
Dr. Jack Greiner practices Ophthalmology near Boston, MA.
Additional practice locations include: Andover, MA.
See Boston Ophthalmologists.