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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 (3)

The overall average patient rating of Dr. Thomas John is Average. Dr. John has been reviewed by 12 patients who have provided 3 comments. The rating is 3 out of 5 stars.

Patient Ratings
Ease of Appointment 3.3
Promptness 2.3
Courteous Staff 2.3
Accurate Diagnosis 3.3
Bedside Manner 2.6
Spends Time with Me 2.4
Follows Up After Visit 1.8

Specialties & Research

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

  • He has special expertise in 6 areas:
  • Cataract Surgery
  • Corneal Diseases
  • Corneal Transplantation
  • Lens Implants (Intraocular Lens Implantation)
  • Macular Degeneration
  • Refractive Surgical Procedures

Education & Awards

Dr. John graduated from University Of Jos. He has 1 awards.

Castle Connolly America's Top Doctors® (2004 - 2008, 2010 - 2015)


Dr. John has 20 hospital affiliations:

  • Adventist Hinsdale Hospital 
  • Loyola University Medical Center 


  • Hindi
  • Afrikaans
  • Indonesian
  • Tamil

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Additional Information
Dr. Thomas John MD is a male Ophthalmologist, has 26 years of experience and practices in Ophthalmology.
Where does Dr. Thomas John practice?
Dr. Thomas John has 2 office locations.
Dr. Thomas John practices Ophthalmology near Tinley Park, IL.
Additional practice locations include: Barrington, IL.
See Tinley Park Ophthalmologists.