Advocate Health Care
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Advocate Health Care doctor directory
Below is the "Doctor Detail" page for the doctor you've chosen. From this page you can:

1.  Request a first appointment online. We will contact you within 24-48 business hours with information regarding your request.
If you need immediate assistance, please call us at 1.800.3.ADVOCATE (1.800.323.8622) Monday - Friday 8:00 am - 6:00 pm.

2.  View a map of the doctor's office locations and get driving directions.

John Leventis, M.D.
John Leventis, M.D.
Internal Medicine
Office in Gurnee
Advocate Condell Medical Center
request first appointment 
Gender: Male 
Age: 54 
Years in Practice: Information not available 
Medical Specialty: Internal Medicine  
Medical School: University Of Glasgow 
Internship: N/A 
Residency: Loyola University Medical Center, Internal Medicine 
Fellowship: N/A 
Philosophy of Care: We at Claymore Medical emphasize and value the Doctor- Patient relationship. Communication is essential to inspire healthy habits and guide one through the complexities of modern medicine. This partnership is indispensible in giving insight to disease prevention and treatment. We offer honest, simple and concise advice to your questions and concerns. We invite you to experience the difference. 
Secondary Languages: Greek , Spanish  
Website: Information not available 
35 Tower Ct, Gurnee,  847.244.4446 
Medical Group
Claymore Medical Group, SC

Location information
35 Tower Ct
Suite I
Gurnee, IL 60031

Medical Specialty
Internal Medicine

Clinical Interests
chronic illness
hospital visits
preventive medicine
Insurance Plans Accepted
Prior to scheduling an appointment with any doctor you select, confirm with the doctor's office staff that the insurance plan you are enrolled in is still accepted by the physician.


Information listed under the "clinical interests" and "special procedures" columns was supplied by the physicians. It is provided to you for informational purposes only, and neither Advocate Health Care nor the Advocate facility has independently verified the information. If you wish to confirm the information contained herein, or if you have any other questions about a particular physician, please contact the physician’s office.

Unless otherwise stated, physicians are independent practitioners who are not employees or agents of Advocate Health Care or the Advocate facility where the care is being provided. Neither Advocate Health Care nor the Advocate facility shall be liable for the medical care provided or decisions made by these independent physicians.

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