Andrey Leonov, MD

Allergy & Immunology

20+ years in practiceNPI: 1043310261Licensed in NYLicensed in OHLicensed in NJLicensed in MILicensed in IL

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Credentials & Recognition

Specialties

Allergy & Immunology

NPI sub-specialties

Pediatrics208000000X

Pediatrics208000000X

Pediatrics208000000X

Pediatrics, Pediatric Allergy/Immunology2080P0201X

Allergy & Immunology207K00000X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

20+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#3

Top Allergists & Immunologists in Illinois, 2026

Allergy & Immunology · Illinois · 2026

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Frequently Asked Questions about Dr. Andrey Leonov, MD

Where does Dr. Andrey Leonov, MD practice?+
Dr. Andrey Leonov, MD practices in Illinois, IL. 2100 GLENWOOD AVE JOLIET, IL 604355487.
What is Dr. Andrey Leonov, MD's phone number?+
Dr. Andrey Leonov, MD's practice phone is 815-514-2712. Office contact information is verified on the PBCMMG profile.
What does Dr. Andrey Leonov, MD specialize in?+
Dr. Andrey Leonov, MD's primary specialty is Allergy & Immunology.
Is Dr. Andrey Leonov, MD board certified?+
Board certification status for Dr. Andrey Leonov, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Andrey Leonov, MD been practicing?+
Dr. Andrey Leonov, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. Andrey Leonov, MD's NPI number?+
Dr. Andrey Leonov, MD's National Provider Identifier (NPI) is 1043310261, registered in the federal NPPES registry.

Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards

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