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Dr. Andrey Leonov, MD

Accepting New Patients

(247 Ratings)

Specializes in: Pediatric Allergy & Immunology and General Pediatrics

Wake Forest University School of Medicine (2003)

Professional interests include: hay fever (allergic rhinitis), food allergy, asthma, and more.

2100 Glenwood Avenue
Joliet, IL 60435

(630) 469-9200

Dr. Andrey Leonov, MD is a pediatric allergist and immunologist in Joliet, IL specializing in pediatric allergy & immunology and general pediatrics. He graduated from Wake Forest University School of Medicine in 2003 and has 23 years of experience. Dr. Andrey Leonov, MD is affiliated with Duly Health and Care.

Office Locations

2100 Glenwood Avenue
Joliet, IL 60435

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1206 E 9th Street
Lockport, IL 60441

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Some issues Dr. Andrey Leonov, MD can help you with:

Asthma

Asthma is a chronic lung disease where the tissue and airways of the lungs become extremely sensitive to certain substances. When these substances are breathed in, the lungs become inflamed. The muscles around the airways tighten and squeeze the lungs, and passages within the lungs swell and tighten. The airways themselves produce mucus, which further clogs the tightened, swollen airways. A person having an asthma attack finds it very difficult to breathe, and a severe attack can even be fatal.

Asthma affects people of all ages, but people with asthma are most often diagnosed as children. Symptoms can include wheezing, a tight feeling in the chest, shortness of breath, and coughing. Some people have mild symptoms all the time, and some people have no symptoms at all, but everyone with asthma is susceptible to occasional severe attacks or flare-ups of symptoms when they are exposed to triggers. Triggers vary widely but can include:

Allergens (dust mites, pet fur, mold, pollen, grass)
Irritants (smoke, pollution, dust, chemicals)
Viral infections
Physical activity, especially outdoors
Certain medications or chemicals in foods (aspirin, sulfites)

Treatment for most asthma patients involves three steps. Patients learn what their asthma triggers are and avoid them. They take a daily control medication, usually an inhaled corticosteroid, to reduce inflammation in the lungs. Also, they have rescue medication with them at all times to take in case of a severe attack. These quick-acting inhaled medications relax the muscles around the airways and allow the lungs to open up for air.

There is no cure for asthma, but with treatment it should not interfere with daily life and activities.

Noteworthy Medicare Patient Procedures Performed by Dr. Andrey Leonov, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Affordability:

blood draw

blood draw for lab tests

phlebotomy for lab tests

venipuncture

In 2023, Dr. Andrey Leonov, MD had a list price for blood draw, blood draw for lab tests, phlebotomy for lab tests, and venipuncture (phlebotomy) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Illinois. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 10%

By Volume:

allergy skin testing

percutaneous allergy test

In 2023, Dr. Andrey Leonov, MD performed more allergy skin testing, and percutaneous allergy test procedures for Medicare patients than 90% of providers in related specialties within Illinois.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Andrey Leonov, MD treated as a pediatric allergist and immunologist in Joliet, IL during 2012 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Andrey Leonov, MD for Medicare patients.

allergy testing	299
doctor visit	85
immunotherapy	57
injections	57
minimally invasive procedures	299
skin testing	299

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Andrey Leonov, MD treated as a pediatric allergist and immunologist in Joliet, IL during 2013 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Andrey Leonov, MD for Medicare patients.

allergy testing	984
blood draw	18
doctor visit	239
immunotherapy	116
injections	116
minimally invasive procedures	779
skin testing	984

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrey Leonov, MD.

**Gender**
Male	49
Female	90

**Ethnicity**
Non-Hispanic White	113
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	85
From 75 to 84	26
85 and over	11
Less than 65	17

Conditions of Medicare patients treated by Dr. Andrey Leonov, MD in 2013

Hypertension	64
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	21
Depression	13
Chronic Kidney Disease	12
Asthma	51
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	11
Diabetes	27
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Andrey Leonov, MD treated as a pediatric allergist and immunologist in Joliet, IL during 2014 were skin testing, allergy testing, minimally invasive procedures and blood draw.

Volume of procedures performed by Dr. Andrey Leonov, MD for Medicare patients.

allergy testing	1152
blood draw	15
doctor visit	257
minimally invasive procedures	1048
skin testing	1152
thoracic (chest) imaging	12
X-rays	12

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrey Leonov, MD.

**Gender**
Male	49
Female	84

**Ethnicity**
Non-Hispanic White	107
Black	12
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	26
85 and over	12
Less than 65	14

Conditions of Medicare patients treated by Dr. Andrey Leonov, MD in 2014

Hypertension	65
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	23
Depression	18
Chronic Kidney Disease	11
Asthma	49
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	0
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrey Leonov, MD for Medicare patients.

doctor visit	133

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrey Leonov, MD.

**Gender**
Male	62
Female	120

**Ethnicity**
Non-Hispanic White	158
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	54
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrey Leonov, MD in 2015

Hypertension	69
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	23
Depression	19
Chronic Kidney Disease	16
Asthma	62
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Andrey Leonov, MD treated as a pediatric allergist and immunologist in Joliet, IL during 2018 were skin testing, allergy testing, minimally invasive procedures and blood draw.

Volume of procedures performed by Dr. Andrey Leonov, MD for Medicare patients.

allergy testing	941
blood draw	21
doctor visit	136
minimally invasive procedures	820
skin testing	941

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrey Leonov, MD.

**Gender**
Male	19
Female	66

**Ethnicity**
Non-Hispanic White	71
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	52
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrey Leonov, MD in 2018

Hypertension	69
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	26
Depression	22
Chronic Kidney Disease	18
Asthma	34
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	13
Diabetes	25
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Andrey Leonov, MD treated as a pediatric allergist and immunologist in Joliet, IL during 2019 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Andrey Leonov, MD for Medicare patients.

allergy testing	1527
blood draw	39
doctor visit	204
immunotherapy	87
injections	87
minimally invasive procedures	1402
skin testing	1527

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrey Leonov, MD.

**Gender**
Male	38
Female	107

**Ethnicity**
Non-Hispanic White	120
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	40
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrey Leonov, MD in 2019

Hypertension	74
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	30
Depression	19
Chronic Kidney Disease	0
Asthma	30
Osteoperosis	0
Atrial Fibrilation	14
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Andrey Leonov, MD treated as a pediatric allergist and immunologist in Joliet, IL during 2020 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Andrey Leonov, MD for Medicare patients.

allergy testing	1124
blood draw	24
doctor visit	136
immunotherapy	63
injections	63
minimally invasive procedures	964
skin testing	1124

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrey Leonov, MD.

**Gender**
Male	29
Female	84

**Ethnicity**
Non-Hispanic White	92
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	25
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrey Leonov, MD in 2020

Hypertension	65
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	25
Depression	27
Chronic Kidney Disease	25
Asthma	27
Osteoperosis	11
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	19
Diabetes	22
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Andrey Leonov, MD treated as a pediatric allergist and immunologist in Joliet, IL during 2021 were skin testing, allergy testing, minimally invasive procedures and blood draw.

Volume of procedures performed by Dr. Andrey Leonov, MD for Medicare patients.

allergy testing	3323
blood draw	35
doctor visit	237
minimally invasive procedures	2886
skin testing	3323

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrey Leonov, MD.

**Gender**
Male	51
Female	120

**Ethnicity**
Non-Hispanic White	141
Black	0
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	57
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrey Leonov, MD in 2021

Hypertension	67
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	32
Depression	23
Chronic Kidney Disease	26
Asthma	24
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	9
Chronic Obstructive Pulmonary Disease	18
Diabetes	21
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Andrey Leonov, MD treated as a pediatric allergist and immunologist in Joliet, IL during 2022 were skin testing, allergy testing, minimally invasive procedures and blood draw.

Volume of procedures performed by Dr. Andrey Leonov, MD for Medicare patients.

allergy testing	1523
blood draw	27
doctor visit	175
minimally invasive procedures	1291
skin testing	1523

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrey Leonov, MD.

**Gender**
Male	27
Female	93

**Ethnicity**
Non-Hispanic White	103
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	44
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrey Leonov, MD in 2022

Hypertension	68
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	17
Asthma	34
Osteoperosis	16
Atrial Fibrilation	12
Heart Failure	0
Chronic Obstructive Pulmonary Disease	22
Diabetes	23
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Andrey Leonov, MD for Medicare patients.

The highest averages for the top procedures that Dr. Andrey Leonov, MD treated as a pediatric allergist and immunologist in Joliet, IL were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

allergy testing	1359
blood draw	25
doctor visit	178
immunotherapy	80
injections	80
minimally invasive procedures	1186
skin testing	1359
thoracic (chest) imaging	12
X-rays	12

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Andrey Leonov, MD.

**Gender**
Male	36
Female	84

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	0
Non-Hispanic White	100
Hispanic	2
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	32
85 and over	2
Less than 65	3
65 to 74	65

Average of Total of Conditions of Medicare patients treated by Dr. Andrey Leonov, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Andrey Leonov, MD treated were hypertension, high cholesterol, asthma and diabetes.

Hypertension	60
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	22
Depression	17
Chronic Kidney Disease	13
Asthma	34
Osteoporosis	5
Heart Failure	3
Chronic Obstructive Pulmonary Disease	13
Diabetes	22
Atrial Fibrillation	6
Cancer	5
Dementia	0

Education & Training

Dr. Andrey Leonov, MD graduated from Wake Forest University School of Medicine in 2003. He completed residency at Long Island Jewish Medical Center. He is certified by the Board Certification: Allergy, Asthma & Immunology and has a state license in Illinois.

Medical School: Wake Forest University School of Medicine (2003)

Residency: Long Island Jewish Medical Center

Board Certification: Board Certification: Allergy, Asthma & Immunology

Licensed In: Illinois

Affiliations & Hospitals

Dr. Andrey Leonov, MD is associated with these hospitals and organizations:

Duly Health and Care

Ratings & Reviews

Dr. Andrey Leonov, MD has an exceptional overall rating with an average of 4.82 out of 5 stars based on 247 ratings. We collect ratings and reviews of Dr. Andrey Leonov, MD from all over the web to help you find the right in Joliet, IL.

4.82

Overall Rating

(247 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2020-12-30

I’ve had several severe allergic reactions requiring hospitalization.  Dr Leoniv helped me greatly. He is a kind and skilled man. I could not be happier!  God bless him.

Reviews From Around The Web

Overall Rating: 5.0 2025-08-23

Patient verified via Press Ganey

First visit with this provider. Extremely kind, knowledgeable, listened to my concerns and health issues. Included me in care decisions. I really liked him !

Overall Rating: 5.0 2026-02-02

Patient verified via Press Ganey

Dr. Leonov has always been great about helping solve my problems and the staff have always been kind and helpful

Overall Rating: 5.0 2026-01-19

Patient verified via Press Ganey

Doc really explained this to me that I didn't understand concerning my son

Overall Rating: 5.0 2024-11-10

Patient verified via Press Ganey

Excellent listener and problem solver. Very knowledgeable.

Overall Rating: 5.0 2025-08-20

Patient verified via Press Ganey

It was easy to talk to assistant and provider

General Payments

These charts describe general payments received by Dr. Andrey Leonov, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Mylan Specialty L.P.	$5,860 EpiPen $5,860
Teva Pharmaceuticals USA, Inc.	$3,961 QVAR $3,435	QNASL $513	PROAIR $13
AstraZeneca Pharmaceuticals LP	$268 SYMBICORT $255	$14
GlaxoSmithKline, LLC.	$265 NUCALA $72	ADVAIR $61	BREO $50	ARNUITY $45	TRELEGY ELLIPTA $12	Other $25
Merck Sharp & Dohme Corporation	$232 DULERA $122	NON-PRODUCT $67	RAGWITEK $27	$16
Other	$936 XOLAIR $158	CUTAQUIG $120	Alvesco $107	Auvi-Q $79	EUCRISA $79	Other $393

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$5,330
Honoraria	$3,700
Food and Beverage	$2,000
Travel and Lodging	$308
Consulting Fee	$120
Other	$65

Research Payments

Dr. Andrey Leonov, MD has received 3 research payments totaling $6,270.

Biography

Dr. Andrey Leonov's medical specialty is pediatric allergy & immunology and general pediatrics. His education and training includes medical school at Wake Forest University School of Medicine and residency at Schneider Children's Hospital and Long Island Jewish Medical Center. His areas of expertise include immunodeficiency, allergy patch test, and penicillin. Dr. Leonov is rated 5.0 stars (out of 5) by his patients. He is conversant in Russian. Dr. Leonov is affiliated with Duly Health and Care. According to Doctor.com, he is currently accepting new patients at his office in Joliet, IL.