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Dr. Michael Joseph Hennessey, MD

Accepting New Patients

(Dr. Michael Hennessey, M.D.)

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Specializes in: Ophthalmology (Eye Disease)

University of Michigan Medical School (1991)

Professional interests include: eye problems, glaucoma

1200 Harger Road Suite 800
Oak Brook, IL 60523

(630) 279-3673

Dr. Michael Joseph Hennessey, MD is an ophthalmologist in Oak Brook, IL specializing in ophthalmology (eye disease). He graduated from University of Michigan Medical School in 1991 and has 35 years of experience. Dr. Michael Joseph Hennessey, MD is affiliated with Endeavor Health and Loyola Medicine.

Office Locations

Loyola Medicine

1200 Harger Road Suite 800
Oak Brook, IL 60523

(630) 279-3673

open_in_new

Endeavor Health

1200 Harger Road Suite 800
Oak Brook, IL 60523

(630) 279-3673

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Endeavor Health

7638 W. North Avenue
Elmwood Park, IL 60707

(708) 452-4257

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Some issues Dr. Michael Joseph Hennessey, MD can help you with:

Eye Problems

Millions of people every year have problems with their eyes. Some of the most common eye problems are refractive disorders, glaucoma, diabetic retinopathy, macular degeneration, and cataracts.

Refractive disorders happen when the shape of the eye doesn't let allow someone focus very precisely. They might be myopic (nearsighted), hyperopic (farsighted), or have an astigmatism, which is a focus problem caused by the cornea. Refractive disorders can be corrected by glasses or contacts.

Glaucoma is the leading cause of blindness in the United States. It happens when fluid pressure builds up within the eye and damages the optic nerve. It is treated with medications and surgery.

Diabetic retinopathy is a common complication of diabetes. The retina is tissue at the back of the eye that is filled with numerous, tiny blood vessels. When diabetes damages these delicate blood vessels, they burst or leak, leading to blind spots and blurred vision. Diabetic retinopathy can be treated with laser therapy and surgery, but often vision cannot be restored.

Macular degeneration is common in older adults. The macula is the central part of the retina and is responsible for crisp center vision. Over time, the cells in the macula begin to die, making central vision blurry. An early symptom of macular degeneration is that straight lines appear wavy.

Cataracts happen when the clear lens in the front of the eye becomes cloudy, making things look blurry or faded. They are extremely common in older people. By age 80, more than half of all Americans will have had a cataract. In early stages, prescription glasses and magnifying lenses can help. As the cataracts get worse, surgery to replace the lens may be the best option.

More than just one of the five senses, the eyes are heavily relied upon to communicate, work, and get around every day. It's important to have regular eye exams for vision stays in good shape for years to come.

Noteworthy Medicare Patient Procedures Performed by Dr. Michael Joseph Hennessey, MD in 2023

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

Top 5%

By Volume:

canalicular probing

ultrasound corneal pachymetry

In 2023, Dr. Michael Joseph Hennessey, MD performed more canalicular probing, and ultrasound corneal pachymetry procedures for Medicare patients than 95% of providers in related specialties within Illinois.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2012 were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and hospital care.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

capsulotomy	12
doctor visit	156
eye procedures	1533
hospital care	21
inpatient care	21
lacrimal (tearing system) procedures	61
laser treatment	12
ultrasound (sonogram)	33

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2013 were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and hospital care.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

doctor visit	144
eye procedures	1532
hospital care	17
inpatient care	17
lacrimal (tearing system) procedures	83
ultrasound (sonogram)	23

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	227
Female	372

**Ethnicity**
Non-Hispanic White	451
Black	50
Hispanic	75
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	231
From 75 to 84	208
85 and over	119
Less than 65	41

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2013

Hypertension	70
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	33
Depression	16
Chronic Kidney Disease	19
Asthma	7
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	39
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2014 were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and hospital care.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

doctor visit	144
eye procedures	1596
hospital care	21
inpatient care	21
lacrimal (tearing system) procedures	68
ultrasound (sonogram)	24

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	227
Female	380

**Ethnicity**
Non-Hispanic White	459
Black	52
Hispanic	85
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	238
From 75 to 84	196
85 and over	129
Less than 65	44

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2014

Hypertension	69
High Cholesterol	59
Stroke	6
Ischemic Heart Disease	32
Depression	15
Chronic Kidney Disease	20
Asthma	7
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	39
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2015 were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and hospital care.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

capsulotomy	19
doctor visit	115
eye procedures	1681
hospital care	21
inpatient care	21
lacrimal (tearing system) procedures	91
laser treatment	19
ultrasound (sonogram)	25

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	448
Female	724

**Ethnicity**
Non-Hispanic White	906
Black	92
Hispanic	146
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	490
From 75 to 84	386
85 and over	226
Less than 65	70

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2015

Hypertension	71
High Cholesterol	60
Stroke	6
Ischemic Heart Disease	34
Depression	16
Chronic Kidney Disease	25
Asthma	13
Osteoperosis	8
Atrial Fibrilation	15
Heart Failure	19
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2016 were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and hospital care.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

capsulotomy	15
doctor visit	123
eye procedures	1740
hospital care	22
inpatient care	22
lacrimal (tearing system) procedures	85
laser treatment	15
ultrasound (sonogram)	31

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	221
Female	362

**Ethnicity**
Non-Hispanic White	445
Black	55
Hispanic	59
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	236
From 75 to 84	200
85 and over	112
Less than 65	35

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2016

Hypertension	70
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	32
Depression	15
Chronic Kidney Disease	27
Asthma	16
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	35
Dementia	11
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2017 were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and capsulotomy.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

capsulotomy	30
doctor visit	144
eye procedures	1938
hospital care	19
inpatient care	19
lacrimal (tearing system) procedures	89
laser treatment	30
ultrasound (sonogram)	45

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	218
Female	397

**Ethnicity**
Non-Hispanic White	480
Black	51
Hispanic	72
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	258
From 75 to 84	208
85 and over	114
Less than 65	35

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2017

Hypertension	71
High Cholesterol	46
Stroke	5
Ischemic Heart Disease	31
Depression	18
Chronic Kidney Disease	32
Asthma	5
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	11
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2018 were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and capsulotomy.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

capsulotomy	24
doctor visit	126
eye procedures	1972
hospital care	23
inpatient care	23
lacrimal (tearing system) procedures	86
laser treatment	24
ultrasound (sonogram)	53

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	239
Female	387

**Ethnicity**
Non-Hispanic White	488
Black	46
Hispanic	76
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	257
From 75 to 84	216
85 and over	124
Less than 65	29

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2018

Hypertension	69
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	32
Depression	19
Chronic Kidney Disease	32
Asthma	6
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	35
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2019 were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and capsulotomy.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

capsulotomy	22
doctor visit	179
eye procedures	2159
hospital care	14
inpatient care	14
lacrimal (tearing system) procedures	97
laser treatment	22
ultrasound (sonogram)	61

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	278
Female	426

**Ethnicity**
Non-Hispanic White	554
Black	46
Hispanic	84
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	279
From 75 to 84	262
85 and over	125
Less than 65	38

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2019

Hypertension	71
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	33
Depression	19
Chronic Kidney Disease	31
Asthma	8
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	34
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2020 were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and capsulotomy.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

capsulotomy	11
doctor visit	144
eye procedures	1801
lacrimal (tearing system) procedures	69
laser treatment	11
ultrasound (sonogram)	40

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	251
Female	404

**Ethnicity**
Non-Hispanic White	482
Black	32
Hispanic	117
Asian	11
Other	13
Native American	0

**Age**
From 65 to 74	280
From 75 to 84	236
85 and over	110
Less than 65	29

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2020

Hypertension	65
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	33
Depression	16
Chronic Kidney Disease	32
Asthma	5
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	9
Diabetes	37
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2021 were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and capsulotomy.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

capsulotomy	21
doctor visit	160
eye procedures	2413
lacrimal (tearing system) procedures	99
laser treatment	21
ultrasound (sonogram)	85

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	295
Female	474

**Ethnicity**
Non-Hispanic White	543
Black	39
Hispanic	156
Asian	16
Other	15
Native American	0

**Age**
From 65 to 74	311
From 75 to 84	289
85 and over	132
Less than 65	37

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2021

Hypertension	67
High Cholesterol	63
Stroke	3
Ischemic Heart Disease	30
Depression	17
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	38
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL during 2022 were eye procedures, ultrasound (sonogram), lacrimal (tearing system) procedures and capsulotomy.

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

capsulotomy	24
doctor visit	197
eye procedures	3278
lacrimal (tearing system) procedures	125
laser treatment	24
ultrasound (sonogram)	151

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	369
Female	655

**Ethnicity**
Non-Hispanic White	638
Black	43
Hispanic	311
Asian	15
Other	17
Native American	0

**Age**
From 65 to 74	362
From 75 to 84	443
85 and over	181
Less than 65	38

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	26
Depression	15
Chronic Kidney Disease	24
Asthma	7
Osteoperosis	19
Atrial Fibrilation	14
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	42
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Michael Joseph Hennessey, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael Joseph Hennessey, MD treated as an ophthalmologist in Oak Brook, IL were eye procedures, lacrimal (tearing system) procedures, ultrasound (sonogram) and capsulotomy.

capsulotomy	19
doctor visit	148
eye procedures	1967
hospital care	19
inpatient care	19
lacrimal (tearing system) procedures	86
laser treatment	19
ultrasound (sonogram)	51

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Michael Joseph Hennessey, MD.

**Gender**
Male	252
Female	416

**Ethnicity**
Black / African American	46
Asian / Pacific Islander	3
Non-Hispanic White	495
Hispanic	107
Native American / Alaskan Native	0
Other	4

**Age**
75 to 84	240
85 and over	124
Less than 65	36
65 to 74	267

Average of Total of Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Michael Joseph Hennessey, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	63
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	28
Depression	15
Chronic Kidney Disease	24
Asthma	7
Osteoporosis	10
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	33
Atrial Fibrillation	12
Cancer	10
Dementia	9

Education & Training

Dr. Michael Joseph Hennessey, MD graduated from University of Michigan Medical School in 1991. He completed residency at Rush University Medical Center. He is certified by the Ophthalmology, Ophthalmology, American Board and has a state license in Illinois.

Medical School: University of Michigan Medical School (1991)

Residency: Rush University Medical Center (1995)

Board Certification: Ophthalmology, Ophthalmology, American Board (1997)

Licensed In: Illinois

Affiliations & Hospitals

Dr. Michael Joseph Hennessey, MD is associated with these hospitals and organizations:

Endeavor Health

Loyola Medicine

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Michael Joseph Hennessey, MD appears to accept the following insurance providers: Cigna, HFN, WellCare Medicare Advantage, CorVel, CIGNA Commercial HMO, Blue Cross and Blue Shield of Michigan, Medicare Advantage, Oscar, HealthSpring, Medicaid, HealthSmart, BCBS Commercial HMO and BCBS Community Health Plan.

Insurance Accepted by Provider includes:

According to our sources, Dr. Michael Joseph Hennessey, MD accepts the following insurance providers:

Cigna

HFN

WellCare Medicare Advantage

CorVel

CIGNA Commercial HMO

Blue Cross and Blue Shield of Michigan

Medicare Advantage

Oscar

HealthSpring

Medicaid

HealthSmart

BCBS Commercial HMO

BCBS Community Health Plan

Ratings & Reviews

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General Payments

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

**Payments by Company**
Eyevance Pharmaceuticals LLC	$318 Flarex $151	Tobradex St $92	Zerviate $76
Allergan Inc.	$318 RESTASIS $158	LUMIGAN $119	BOTOX $18	$23
Bausch & Lomb, a division of Bausch Health US, LLC	$293 LOTEMAX SM $155	PROLENSA $57	LOTEMAX $33	BESIVANCE $25	VYZULTA $23
Alcon Laboratories Inc	$253 Ilevro $79	Simbrinza $56	Pataday $33	$85
Allergan, Inc.	$251 DURYSTA $216	LUMIGAN $33	RESTASIS MULTIDOSE $2
Other	$1,545 XIIDRA $181	Oxervate $126	Biologics $119	ISTENT TRABECULAR MICRO-BYPASS STENT SYSTEM $119	MIEBO $113	Other $886

**Types of Payments**
Food and Beverage	$2,914
Gift	$64

Biography

Dr. Michael Hennessey's specialty is ophthalmology (eye disease). He is especially interested in glaucoma. He is an in-network provider for several insurance carriers, including Blue California, HFN, and HealthSmart. Dr. Hennessey is a graduate of the University of Michigan Medical School and a graduate of Rush University Medical Center's residency program. He is professionally affiliated with Endeavor Health and Loyola Medicine. His practice in Elmwood Park, IL is open to new patients as reported by Loyola Medicine.

Select Year:

Dr. Michael Joseph Hennessey, MD

Office Locations

Some issues Dr. Michael Joseph Hennessey, MD can help you with:

Noteworthy Medicare Patient Procedures Performed by Dr. Michael Joseph Hennessey, MD in 2023

By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Michael Joseph Hennessey, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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