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Dr. Chady A. Abboud Leon, MD

Accepting New Patients

(Dr. Chady Abboud Leon, M.D.)

(27 Ratings)

Specializes in: Adult Oncology and Adult Hematology

University of Damascus Faculty of Medicine (2002)

1000 NORTH OAK AVENUE
MARSHFIELD, WI 54449

(715) 387-5416

Dr. Chady A. Abboud Leon, MD is an oncologist in MARSHFIELD, WI specializing in adult oncology and adult hematology. He graduated from University of Damascus Faculty of Medicine in 2002 and has 23 years of experience. Dr. Chady A. Abboud Leon, MD is affiliated with Marshfield Clinic Health System, MCHS HOSPITALS INC and MARSHFIELD CLINIC INC.

Office Locations

1000 NORTH OAK AVENUE
MARSHFIELD, WI 54449

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N3708 RIVER AVENUE
Neillsville, WI 54456

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4100 STATE HIGHWAY 66 WEST BUILDING
Stevens Point, WI 54482

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3400 MINISTRY PARKWAY
Weston, WI 54476

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Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI during 2014 were hospital care, inpatient care, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

biological response modifier (BRM) therapy	67
chemotherapy	67
doctor visit	140
hospital care	113
inpatient care	113
minimally invasive procedures	67

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	90
Female	79

**Age**
From 65 to 74	67
From 75 to 84	52
85 and over	17
Less than 65	33

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2014

The most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated during 2014 were hypertension, high cholesterol, chronic kidney disease and cancer.

Hypertension	60
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	43
Asthma	9
Osteoperosis	11
Atrial Fibrilation	20
Heart Failure	20
Chronic Obstructive Pulmonary Disease	22
Diabetes	27
Dementia	7
Cancer	41

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI during 2015 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

biological response modifier (BRM) therapy	143
blood draw	32
chemotherapy	143
doctor visit	407
hospital care	126
inpatient care	126
lab tests	31
minimally invasive procedures	162
preventive care	13
vaccines	13

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	302
Female	270

**Age**
From 65 to 74	266
From 75 to 84	170
85 and over	50
Less than 65	86

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2015

The most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated during 2015 were hypertension, high cholesterol, cancer and chronic kidney disease.

Hypertension	63
High Cholesterol	55
Stroke	5
Ischemic Heart Disease	35
Depression	20
Chronic Kidney Disease	43
Asthma	13
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	23
Chronic Obstructive Pulmonary Disease	23
Diabetes	28
Dementia	9
Cancer	44

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI during 2016 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

biological response modifier (BRM) therapy	245
blood draw	51
chemotherapy	245
doctor visit	544
hospital care	129
inpatient care	129
lab tests	36
minimally invasive procedures	268

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	169
Female	163

**Ethnicity**
Non-Hispanic White	321
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	140
From 75 to 84	101
85 and over	33
Less than 65	58

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2016

The most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated during 2016 were hypertension, chronic kidney disease, high cholesterol and cancer.

Hypertension	58
High Cholesterol	45
Stroke	4
Ischemic Heart Disease	32
Depression	23
Chronic Kidney Disease	46
Asthma	25
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	25
Chronic Obstructive Pulmonary Disease	23
Diabetes	27
Dementia	11
Cancer	40

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI during 2017 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

biological response modifier (BRM) therapy	277
blood draw	50
chemotherapy	277
doctor visit	596
hospital care	161
inpatient care	161
lab tests	84
minimally invasive procedures	296
preventive care	12
vaccines	12

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	175
Female	203

**Ethnicity**
Non-Hispanic White	366
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	100
85 and over	35
Less than 65	60

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2017

The most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated during 2017 were hypertension, chronic kidney disease, high cholesterol and cancer.

Hypertension	60
High Cholesterol	41
Stroke	3
Ischemic Heart Disease	32
Depression	24
Chronic Kidney Disease	42
Asthma	6
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	24
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Dementia	11
Cancer	37

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI during 2018 were hospital care, inpatient care, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

biological response modifier (BRM) therapy	116
blood draw	62
chemotherapy	116
doctor visit	565
hospital care	143
inpatient care	143
lab tests	98
minimally invasive procedures	116

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	133
Female	134

**Ethnicity**
Non-Hispanic White	256
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	138
From 75 to 84	63
85 and over	24
Less than 65	42

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2018

The most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated during 2018 were hypertension, high cholesterol, chronic kidney disease and cancer.

Hypertension	58
High Cholesterol	46
Stroke	4
Ischemic Heart Disease	32
Depression	27
Chronic Kidney Disease	43
Asthma	5
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	24
Chronic Obstructive Pulmonary Disease	22
Diabetes	30
Dementia	9
Cancer	40

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI during 2019 were hospital care, inpatient care, lab tests and blood draw.

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

blood draw	36
doctor visit	577
hospital care	144
inpatient care	144
lab tests	37

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	117
Female	137

**Age**
From 65 to 74	126
From 75 to 84	79
85 and over	20
Less than 65	29

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2019

The most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated during 2019 were hypertension, high cholesterol, chronic kidney disease and cancer.

Hypertension	58
High Cholesterol	46
Stroke	4
Ischemic Heart Disease	31
Depression	28
Chronic Kidney Disease	42
Asthma	6
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	20
Diabetes	30
Dementia	9
Cancer	41

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI during 2020 were hospital care, inpatient care, lab tests and blood draw.

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

blood draw	38
doctor visit	438
hospital care	70
inpatient care	70
lab tests	43

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	92
Female	91

**Age**
From 65 to 74	96
From 75 to 84	52
85 and over	15
Less than 65	20

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2020

The most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated during 2020 were hypertension, high cholesterol, chronic kidney disease and cancer.

Hypertension	56
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	42
Asthma	0
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	23
Chronic Obstructive Pulmonary Disease	19
Diabetes	27
Dementia	10
Cancer	38

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

doctor visit	381
hospital care	54
inpatient care	54

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	100
Female	106

**Age**
From 65 to 74	107
From 75 to 84	60
85 and over	18
Less than 65	21

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2021

The most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated during 2021 were hypertension, high cholesterol, chronic kidney disease and cancer.

Hypertension	54
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	30
Depression	21
Chronic Kidney Disease	45
Asthma	5
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	10
Cancer	41

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI during 2022 were hospital care, inpatient care, blood draw and lab tests.

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

blood draw	40
doctor visit	405
hospital care	89
inpatient care	89
lab tests	30

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	96
Female	120

**Age**
From 65 to 74	103
From 75 to 84	67
85 and over	18
Less than 65	28

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2022

The most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated during 2022 were high cholesterol, hypertension, cancer and chronic kidney disease.

Hypertension	64
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	21
Depression	17
Chronic Kidney Disease	29
Asthma	0
Osteoperosis	16
Atrial Fibrilation	25
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	0
Cancer	50

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI during 2023 were hospital care and inpatient care.

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

doctor visit	475
hospital care	99
inpatient care	99

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	112
Female	134

**Ethnicity**
Non-Hispanic White	229
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	76
85 and over	25
Less than 65	25

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2023

The most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated during 2023 were high cholesterol, hypertension, cancer and diabetes.

Hypertension	65
High Cholesterol	70
Stroke	7
Ischemic Heart Disease	28
Depression	17
Chronic Kidney Disease	27
Asthma	11
Osteoperosis	20
Atrial Fibrilation	20
Heart Failure	17
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Dementia	0
Cancer	48

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2023

Volume of procedures performed by Dr. Chady A. Abboud Leon, MD for Medicare patients.

The highest averages for the top procedures that Dr. Chady A. Abboud Leon, MD treated as an oncologist in MARSHFIELD, WI were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

biological response modifier (BRM) therapy	169
blood draw	44
chemotherapy	169
doctor visit	452
hospital care	112
inpatient care	112
lab tests	51
minimally invasive procedures	181
preventive care	12
vaccines	12

Average Medicare Patient Data From 2014 - 2023

Information about Medicare patients treated by Dr. Chady A. Abboud Leon, MD.

**Gender**
Male	138
Female	143

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	117
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	82
85 and over	25
Less than 65	40
65 to 74	134

Average of Total of Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD From 2014 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Chady A. Abboud Leon, MD treated were hypertension, high cholesterol, cancer and chronic kidney disease.

Hypertension	59
High Cholesterol	51
Stroke	2
Ischemic Heart Disease	30
Depression	21
Chronic Kidney Disease	40
Asthma	8
Osteoporosis	11
Heart Failure	21
Chronic Obstructive Pulmonary Disease	20
Diabetes	29
Atrial Fibrillation	16
Cancer	42
Dementia	7

Education & Training

Dr. Chady A. Abboud Leon, MD graduated from University of Damascus Faculty of Medicine in 2002. He completed residency at Dessau Hospital Dessau, Germany Internal Medicine. He is certified by the Board Certification: Internal Medicine and has a state license in Wisconsin.

Medical School: University of Damascus Faculty of Medicine (2002)

Residency: Dessau Hospital Dessau, Germany Internal Medicine (2006)

Board Certification: Board Certification: Internal Medicine (2011)

Licensed In: Wisconsin

Affiliations & Hospitals

Dr. Chady A. Abboud Leon, MD is associated with these hospitals and organizations:

Marshfield Clinic Health System

MCHS HOSPITALS INC

MARSHFIELD CLINIC INC

Ratings & Reviews

Dr. Chady A. Abboud Leon, MD has an exceptional overall rating with an average of 4.93 out of 5 stars based on 27 ratings. We collect ratings and reviews of Dr. Chady A. Abboud Leon, MD from all over the web to help you find the right in MARSHFIELD, WI.

4.93

Overall Rating

(27 Ratings)

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Reviews From Around The Web

Overall Rating: 5.0 2025-07-21

Patient verified via Press Ganey

Dr. Chady is EXCELLENT. Need to clone him for all MCHS depts.

Overall Rating: 5.0 2025-11-07

Patient verified via Press Ganey

Dr. Leon and staff are the best !

General Payments

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

**Payments by Company**
Genentech USA, Inc.	$272 Rituxan $116	Perjeta $100	TARCEVA $25	Avastin $24	$8
Johnson & Johnson Health Care Systems Inc.	$119 NA $119
Janssen Products, LP	$77 PROCRIT $77
Janssen Biotech, Inc.	$65 Erleada $65
Novartis Pharmaceuticals Corporation	$56 KYMRIAH $56
Other	$197 IMBRUVICA $36	Gilotrif $32	VELCADE $32	SIR-Spheres microspheres $23	ERBITUX $17	Other $56

**Types of Payments**
Food and Beverage	$544
Education	$242

Research Payments

Dr. Chady A. Abboud Leon, MD has received 16 research payments totaling $243,864.

Biography

Dr. Chady Leon practices adult hematology and adult oncology in Marshfield, WI, Neillsville, WI, and Weston, WI. Patients gave him an average rating of 5.0 stars (out of 5). Dr. Leon is a graduate of the University of Damascus Faculty of Medicine. He is professionally affiliated with Marshfield Clinic Health System. He has an open panel in Marshfield, WI according to Doctor.com.

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Dr. Chady A. Abboud Leon, MD

Office Locations

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2023

Average Medicare Patient Data From 2014 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Chady A. Abboud Leon, MD From 2014 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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