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30 years of experience
Accepting new patients
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 (4)

The overall average patient rating of Dr. Gary Lewison is Good. Dr. Lewison has been reviewed by 10 patients who have provided 4 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.3
Promptness 3.7
Courteous Staff 3.5
Accurate Diagnosis 3.4
Bedside Manner 3.5
Spends Time with Me 4.0
Follows Up After Visit 4.0

Education & Awards

Dr. Lewison graduated from Rosalind Franklin University, North Chicago.


Dr. Lewison has 6 hospital affiliations:

  • Adventist Hinsdale Hospital 
  • St Alexius Medical Center 


  • English

> > > Dr. Gary Lewison, MD

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Additional Information
Dr. Gary Richard Lewison MD is a male Internist, has 30 years of experience and practices in Internal Medicine.
Where does Dr. Gary R. Lewison practice?
Dr. Gary Lewison has 4 office locations.
Dr. Gary Lewison practices Internal Medicine near East Dundee, IL.
Additional practice locations include: Hoffman Estates, IL and Roselle, IL.