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Locations

Joliet

2100 Glenwood Ave.Joliet, Illinois 60435
1-815-744-2300

Lockport

1206 E. 9th St.Lockport, Illinois 60441
815-744-2300

About Andrey Leonov, MD

Philosophy of Care

As an allergy, asthma and immunology specialist, I strive to provide my pediatric and adult patients in the Joliet and Lockport communities with the best care possible. Allergies and asthma can have a tremendous impact on your daily life. Whether you’re struggling with chronic sinus symptoms, food allergies or skin rashes, my goal is to work collaboratively with each patient to identify their specific allergens and develop a treatment plan best suited to their individual needs. In order to achieve the best outcomes, it’s essential that patients are included in the decision making process and feel well-informed and comfortable, both with me and their care plan.

Personal Interests

Biking, Gardening, Reading, Spending time with family

Languages

English

Russian

Memberships

American Academy of Allergy, Asthma and Immunology

Illinois State Medical Society

Clinical Interests

Asthma, Chronic sinus disease, Environmental allergies, Frequent infections, Food allergy, Eczema, Contact dermatitis

Awards & Accolades

Recognized by the International Association of Health Care Professionals

2012

Schools
Wake Forest UniversityGraduation Date: 2003Degree: MD
Clinical Expertise
Procedures
Asthma and Allergy Testing
Challenge Testing
Food and Drug Challenge Testing
Food Allergy Evaluations
Immune Deficiency Evaluation
Intradermal Testing
Nebulizer Treatments
Patch Testing
Penicillin Testing
Scratch Testing
Spirometry
Venom Testing
Conditions
Allergies
Asthma
Atopic Dermatitis
Chronic Urticaria
Eczema
Hives
Immune Deficiencies

Ratings and Comments

Comments are collected in our Press Ganey Patient Satisfaction Surveys. Patients are de-identified to protect confidentiality and patient privacy. Learn more about our patient satisfaction survey.

Everyone was very professional and helpful. Detail oriented.

5

Aug 9, 2025

Very professional

5

Jul 27, 2025

Dr. Leonov was very informative and upfront about my reason for the visit.

5

Jul 26, 2025

Doctor & Nurse explained everything very well and I felt they truly cared about me.

5

Jul 5, 2025

Dr Leonov listened to all my concerns address each individually. We then developed a plan of action and began to Set it in motion.

5

Jun 30, 2025

Patient Satisfaction Rating

4.8

203 Reviews

The Patient Satisfaction Rating score is an average of all responses to care provider related questions on our independent rating system, the Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our patient satisfaction survey.

Contact Us
Need Help?
Corporate Mailing Address1100 W 31st Street
Downers Grove, Illinois 60515
Main Line - (630) 469 9200Billing Customer Service - (866) 734 7680
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