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Dr. John D. Abad, MD

Accepting New Patients

(John D. Abad, MD)

(35 Ratings)

Specializes in: General Practice and Surgical Oncology (Cancer Surgery)

Northwestern University, Feinberg School of Medicine (2002)

Professional interests include: pancreatic cancer, esophageal cancer, sarcoma (bone and soft tissue cancer), and more.

304 Randall Road
Geneva, IL 60134

(630) 232-0610

Dr. John D. Abad, MD is a general practitioner in Geneva, IL specializing in general practice and surgical oncology (cancer surgery). He graduated from Northwestern University, Feinberg School of Medicine in 2002 and has 24 years of experience. Dr. John D. Abad, MD is affiliated with Northwestern University Feinberg School of Medicine, Northwestern Medicine, CENTRAL DUPAGE PHYSICIAN GROUP and Northwestern Medical Group.

Office Locations

304 Randall Road
Geneva, IL 60134

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4405 Weaver Parkway
Warrenville, IL 60555

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10 Health Services Drive
DeKalb, IL 60115

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25 N Winfield Road Suite 2202
Winfield, IL 60190

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676 N Saint Clair Suite 650
Chicago, IL 60611

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In The News (see more mentions in the news)

“Dr. John Abad, a surgical oncologist at Northwestern Medicine Central DuPage Hospital in Illinois, said that when the virus first began to spread, he and his colleagues tried to move up as many...”—"Cancer patients weigh treatment risks amid coronavirus: 'This isn't a time to be experimental'", Oregonlive , October 2024

“Dr. John Abad, a surgical oncologist at Northwestern Medicine Central DuPage Hospital in Winfield and Northwestern Delnor Hospital in Geneva, said that when the virus first began to spread, he and...”—"Oncologists, patients weigh treatment and coronavirus risk. 'Cancer is a disease that does not wait.'", Chicago Tribune, April 2020

“"John Abad, a surgical oncologist with Northwestern Medicine, said they looked for ways to avoid invasive surgery given Beers age but it proved unavoidable.”—"Even as he battled stomach cancer, a 91-year-old Elgin man never stopped writing love letters to his family", Chicago Tribune, August 2019

Noteworthy Medicare Patient Procedures Performed by Dr. John D. Abad, MD in 2023

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

Top 10%

By Volume:

inpatient hospital care

In 2023, Dr. John D. Abad, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 90% of providers in related specialties within Illinois.

Top 25%

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2012, Dr. John D. Abad, MD had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 75% 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John D. Abad, MD treated as a general practitioner in Geneva, IL during 2012 were catheterization.

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

catheterization	14
doctor visit	50

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John D. Abad, MD treated as a general practitioner in Geneva, IL during 2013 were catheterization and diagnostic procedures.

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

catheterization	18
diagnostic procedures	16
doctor visit	84

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	48
Female	55

**Age**
From 65 to 74	55
From 75 to 84	32
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John D. Abad, MD in 2013

Hypertension	60
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	40
Depression	18
Chronic Kidney Disease	30
Asthma	0
Osteoperosis	0
Atrial Fibrilation	14
Heart Failure	16
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	0
Cancer	33

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

doctor visit	67

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	48
Female	42

**Age**
From 65 to 74	31
From 75 to 84	34
85 and over	14
Less than 65	11

Conditions of Medicare patients treated by Dr. John D. Abad, MD in 2014

Hypertension	69
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	41
Depression	14
Chronic Kidney Disease	31
Asthma	0
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	0
Cancer	43

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

doctor visit	45

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	68
Female	90

**Age**
From 65 to 74	86
From 75 to 84	38
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John D. Abad, MD in 2015

Hypertension	66
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	33
Depression	28
Chronic Kidney Disease	34
Asthma	0
Osteoperosis	0
Atrial Fibrilation	18
Heart Failure	20
Chronic Obstructive Pulmonary Disease	19
Diabetes	25
Dementia	0
Cancer	42

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John D. Abad, MD treated as a general practitioner in Geneva, IL during 2016 were hospital care, inpatient care, dissection and abdominal surgery.

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

abdominal surgery	12
dissection	12
doctor visit	126
excision	12
hospital care	23
inpatient care	23
lymph node procedures	12

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	73
Female	65

**Ethnicity**
Non-Hispanic White	123
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	47
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John D. Abad, MD in 2016

Hypertension	75
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	41
Depression	20
Chronic Kidney Disease	42
Asthma	17
Osteoperosis	8
Atrial Fibrilation	22
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	36
Dementia	0
Cancer	33

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John D. Abad, MD treated as a general practitioner in Geneva, IL during 2017 were hospital care, inpatient care, dissection and abdominal surgery.

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

abdominal surgery	19
dissection	19
doctor visit	167
excision	19
hospital care	102
inpatient care	102
lymph node procedures	19

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	77
Female	89

**Ethnicity**
Non-Hispanic White	143
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	84
From 75 to 84	51
85 and over	19
Less than 65	12

Conditions of Medicare patients treated by Dr. John D. Abad, MD in 2017

Hypertension	74
High Cholesterol	52
Stroke	7
Ischemic Heart Disease	37
Depression	30
Chronic Kidney Disease	44
Asthma	8
Osteoperosis	8
Atrial Fibrilation	17
Heart Failure	25
Chronic Obstructive Pulmonary Disease	19
Diabetes	36
Dementia	10
Cancer	31

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John D. Abad, MD treated as a general practitioner in Geneva, IL during 2018 were hospital care, inpatient care, dissection and abdominal surgery.

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

abdominal surgery	13
dissection	13
doctor visit	155
excision	13
hospital care	180
inpatient care	180
lymph node procedures	13

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	82
Female	79

**Ethnicity**
Non-Hispanic White	138
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	43
85 and over	17
Less than 65	11

Conditions of Medicare patients treated by Dr. John D. Abad, MD in 2018

Hypertension	75
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	30
Depression	26
Chronic Kidney Disease	39
Asthma	7
Osteoperosis	0
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	11
Cancer	35

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John D. Abad, MD treated as a general practitioner in Geneva, IL during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

doctor visit	203
hospital care	152
inpatient care	152

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	90
Female	76

**Ethnicity**
Non-Hispanic White	150
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	64
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John D. Abad, MD in 2019

Hypertension	75
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	37
Depression	25
Chronic Kidney Disease	43
Asthma	7
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	20
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	11
Cancer	37

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John D. Abad, MD treated as a general practitioner in Geneva, IL during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

doctor visit	177
hospital care	159
inpatient care	159

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	96
Female	95

**Ethnicity**
Non-Hispanic White	170
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	64
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John D. Abad, MD in 2020

Hypertension	75
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	27
Depression	25
Chronic Kidney Disease	34
Asthma	8
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	12
Diabetes	26
Dementia	6
Cancer	40

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John D. Abad, MD treated as a general practitioner in Geneva, IL during 2021 were hospital care, inpatient care, dissection and abdominal surgery.

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

abdominal surgery	11
dissection	11
doctor visit	250
excision	11
hospital care	185
inpatient care	185
lymph node procedures	11

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	125
Female	116

**Ethnicity**
Non-Hispanic White	215
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	90
85 and over	25
Less than 65	11

Conditions of Medicare patients treated by Dr. John D. Abad, MD in 2021

Hypertension	72
High Cholesterol	71
Stroke	6
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	43
Asthma	6
Osteoperosis	15
Atrial Fibrilation	18
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	34
Dementia	7
Cancer	34

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John D. Abad, MD treated as a general practitioner in Geneva, IL during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

doctor visit	256
hospital care	169
inpatient care	169

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	120
Female	124

**Ethnicity**
Non-Hispanic White	219
Black	0
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	112
From 75 to 84	92
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John D. Abad, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	32
Depression	20
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	15
Atrial Fibrilation	24
Heart Failure	18
Chronic Obstructive Pulmonary Disease	21
Diabetes	28
Dementia	7
Cancer	42

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John D. Abad, MD for Medicare patients.

The highest averages for the top procedures that Dr. John D. Abad, MD treated as a general practitioner in Geneva, IL were hospital care, inpatient care, catheterization and diagnostic procedures.

abdominal surgery	13
catheterization	16
diagnostic procedures	16
dissection	13
doctor visit	143
excision	13
hospital care	138
inpatient care	138
lymph node procedures	13

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John D. Abad, MD.

**Gender**
Male	75
Female	75

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	105
Native American / Alaskan Native	0
Hispanic	1
Other	1

**Age**
75 to 84	50
85 and over	6
Less than 65	4
65 to 74	74

Average of Total of Conditions of Medicare patients treated by Dr. John D. Abad, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. John D. Abad, MD treated were hypertension, high cholesterol, cancer and chronic kidney disease.

Hypertension	65
High Cholesterol	53
Stroke	1
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	33
Asthma	5
Osteoporosis	7
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Atrial Fibrillation	15
Dementia	4
Cancer	33

Education & Training

Dr. John D. Abad, MD graduated from Northwestern University, Feinberg School of Medicine in 2002. He completed residency at Indiana University Affiliated Hospitals. He is certified by the American Board of Surgery - Surgery (Certified) and has a state license in Illinois.

Medical School: Northwestern University, Feinberg School of Medicine (2002)

Residency: Indiana University Affiliated Hospitals (2004)

Board Certification: American Board of Surgery - Surgery (Certified)

Licensed In: Illinois

Affiliations & Hospitals

Dr. John D. Abad, MD is associated with these hospitals and organizations:

Northwestern University Feinberg School of Medicine

Northwestern Medicine

CENTRAL DUPAGE PHYSICIAN GROUP

Northwestern Medical Group

Ratings & Reviews

Dr. John D. Abad, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 35 ratings. We collect ratings and reviews of Dr. John D. Abad, MD from all over the web to help you find the right in Geneva, IL.

Overall Rating

(35 Ratings)

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General Payments

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

**Payments by Company**
Intuitive Surgical, Inc.	$10,203 Da Vinci Surgical System $10,203
AngioDynamics, Inc.	$500 $500
NeuWave Medical, Inc.	$386 CERTUS 140 MICROWAVE ABLATION SYSTEM $386
Genentech USA, Inc.	$246 Avastin $246
Ethicon Inc.	$147 SURGICEL Family of Absorbable Hemostats $147
Other	$381 ENTEREG $94	ECHELON FLEX Stapler $89	FARXIGA $36	OFIRMEV $20	PROSTATE CANCER - DISEASE $14	Other $126

**Types of Payments**
Education	$10,067
Travel and Lodging	$965
Food and Beverage	$792
Gift	$39

Research Payments

Dr. John D. Abad, MD has received 7 research payments totaling $11,355.

Biography

Dr. John Abad is a physician who specializes in general practice and surgical oncology (cancer surgery). His areas of expertise include the following: esophageal cancer, peritoneal cancer, and hepatobiliary surgery. On average, patients gave Dr. Abad a rating of 5.0 stars (out of 5). He graduated from Northwestern University, Feinberg School of Medicine. His medical residency was performed at a hospital affiliated with Indiana University. Dr. Abad is professionally affiliated with Northwestern Medicine Central DuPage Hospital, Delnor Hospital, and Northwestern University Feinberg School of Medicine. According to Yext, new patients are welcome to contact his office in Geneva, IL.