Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Andrey Leonov, MD

Individual provider Pediatrics Physician · NPI 1043310261

Dr. Andrey Leonov, MD is an Allergy/Immunology in Joliet, Illinois. Qualified in 2003, 23 years ago. Practices with Dupage Medical Group Ltd, a 1,328-clinician group and accepts Medicare assignment. Licensed in Illinois, Michigan, New Jersey and New York and 1 more.

Years since qualifying
23
Licensed in
IL, MI, NJ, NY, OH
In the registry since
2006
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2100 Glenwood Ave
Joliet, IL 60435-5487
Phone: (815) 514-2712
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence 036-125826 (IL)
Pediatrics Physician Taxonomy 208000000X · Licence 248493 (NY)
Pediatrics Physician Taxonomy 208000000X · Licence 35089736 (OH)
Pediatrics Physician Taxonomy 208000000X · Licence 25MA08039700 (NJ)
Pediatric Allergy/Immunology Physician Taxonomy 2080P0201X · Licence 4301107932 (MI)

Record details

NPI number1043310261
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 25, 2006
Last updated in NPPESAugust 10, 2023
Certification dateAugust 10, 2023
Mailing addressPo Box 713260, Chicago, IL 60677-1260

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyALLERGY/IMMUNOLOGY
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Dupage Medical Group Ltd — 1328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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