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Dr. Matthew B. Maas, MD, MS

(Matthew B. Maas, MD)

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Specializes in: Psychiatry & Neurology, General Practice, Critical Care (Intensive Care Medicine), Vascular Neurology and Anesthesiology

University of Washington School of Medicine (2004)

Professional interests include: stroke

259 E Erie Street Lavin Family Pavilion, Suite 1900
Chicago, IL 60611

(312) 695-7950

Dr. Matthew B. Maas, MD, MS is a null in Chicago, IL specializing in psychiatry & neurology, general practice, critical care (intensive care medicine), vascular neurology and anesthesiology. He graduated from University of Washington School of Medicine in 2004 and has 22 years of experience. Dr. Matthew B. Maas, MD, MS is affiliated with Northwestern Medicine, Northwestern University Clinical and Translational Sciences Institute (NUCATS), Northwestern University Feinberg School of Medicine, Northwestern Medical Group (NMG), Institute for Public Health and Medicine (IPHAM) - Center for Health Services & Outcomes Research, Center for Circadian and Sleep Medicine and Regenstein Center for Neurological Care.

Office Locations

259 E Erie Street Lavin Family Pavilion, Suite 1900
Chicago, IL 60611

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625 N. Michigan Avenue Suite 1150
Chicago, IL 60611

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Some issues Dr. Matthew B. Maas, MD, MS can help you with:

Stroke

A stroke is a medical emergency that occurs when a blood vessel supplying oxygen and nutrients to the brain is ruptured or blocked. The brain cannot function without a steady supply of oxygen and nutrients, so when the blood supply to the brain is interrupted, even for a brief moment, brain cells begin to die. When a sufficient number of brain cells die, the brain itself can no longer function, meaning that strokes are very dangerous. Strokes can result in impaired movement, speech, cognitive ability, the impairment of important physical functions, and even death.

Anyone can have a stroke, regardless of age and health. Strokes are known to happen at random. However, certain conditions and behaviors can increase one's risk of stroke over time.

Risk factors for stroke include:

Heart disease
Older age
Smoking
Diabetes
High blood pressure
High blood cholesterol and lipids

There are two main types of stroke: ischemic stroke and hemorrhagic stroke. Ischemic stroke occurs more commonly and is when a blood vessel in the brain becomes blocked. Blockages are caused by blood clots and built-up plaque (deposits of fat and cholesterol), which leads to atherosclerosis, a condition where the blood vessels narrow and harden. The resultant restricted blood flow may lead to an ischemic stroke by blocking essential oxygen to the brain, causing the heart to exert more effort to pump blood.

Hemorrhagic stroke occurs when a blood vessel in or around the brain ruptures. The burst vessel leaks blood into surrounding brain tissue, causing irreparable brain damage.

Hemorrhagic strokes are less common and may occur from head injuries, brain aneurysms, brain tumors, and bleeding disorders, amongst other conditions.

Both ischemic and hemorrhagic strokes require immediate medical treatment. Medical intervention can prevent severe and life-threatening brain damage. Signs of stroke include:

-Disorientation or confusion

-Difficulty speaking

-Difficulty walking

-Impaired vision

-Weakness in the face, legs, or arms

-Severe headaches

When someone suspected of having a stroke reaches the hospital, the patient will usually receive a CT or other scan that provides an image of the brain. The scan results can reveal clotted or leaking blood in the brain. Physical exams, neurological exams, and blood tests may also be used to check for blood clotting and sugar. Treatment begins generally immediately if a stroke is detected.

Medical treatment for ischemic strokes includes a thrombolytic medicine which breaks up and disperses blood clots. This medicine can greatly improve stroke recovery and long-term health. However, the thrombolytic medicine must be administered as soon as possible to achieve these results. Other treatments for ischemic strokes are blood thinners and thrombectomy, a surgical procedure to remove a blood clot in the brain. Thrombectomy is performed by inserting a catheter (thin needle) into the artery to reach the blood clot and mechanically remove it. With the clot removed, normal blood flow to the brain resumes. Thrombectomy is typically performed at most six hours after a patient shows signs of a stroke.

Hemorrhagic strokes are treated with blood-saving medication and surgery. For a hemorrhagic stroke caused by the rupture of an aneurysm (blood vessel bulges), surgery to stem the bleeding aneurysm and vessel may be used. One surgical technique is stent-assisted coiling, which adds a stent (small wire-meshed tube) into the blood vessel to block the leaking opening of the aneurysm. A non-surgical procedure is endovascular coiling, where a catheter (thin, hollow needle) places a platinum wire coil at the spot of the aneurysm. The coil blocks bleeding and prevents the aneurysm from continuing to leak blood. These procedures are usually combined with blood-thickening medications. Blood transfusions may be administered if substantial blood loss has occurred.

Since stroke patients may have lost some essential functions while the blood flow to their brains was obstructed, both ischemic stroke and hemorrhage stroke patients may receive post-stroke rehabilitation to rebuild their physical and mental abilities. Some restorative treatments include occupational, physical, and speech therapy. Patients may also receive care from neurologists, who can assist patients in recovering certain brain functions and cognitive abilities, and rehabilitation psychologists, who may help patients with their emotional, behavioral, and cognitive recovery. Some stroke patients require lengthy rehabilitation and may never fully regain function, while others may recover more quickly. While the fastest recovery improvements are usually seen in the first three or four months, stroke rehabilitation can last for years.

If someone begins to show signs of stroke, contact emergency services and call 9-1-1 immediately since blood flow must be restored as soon as possible to help avoid significant brain damage. If an ambulance takes the person to the hospital, paramedics can initiate stroke treatment as soon as the patient enters the ambulance, allowing for more prompt medical intervention and care.

In The News

"Light During Sleep in Older Adults Linked to Obesity, Diabetes, High Blood Pressure Exposure to light during sleep was associated with obesity, diabetes and high blood pressure in older adults,...", Northwestern University Feinberg School of Medicine

Noteworthy Medicare Patient Procedures Performed by Dr. Matthew B. Maas, MD, MS in 2023

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

Top 25%

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2012, Dr. Matthew B. Maas, MD, MS 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. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	136
inpatient care	136

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	152
inpatient care	152

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	91
Female	100

**Ethnicity**
Non-Hispanic White	120
Black	45
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	70
From 75 to 84	50
85 and over	33
Less than 65	38

Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS in 2013

Hypertension	75
High Cholesterol	65
Stroke	62
Ischemic Heart Disease	51
Depression	37
Chronic Kidney Disease	58
Asthma	11
Osteoperosis	12
Atrial Fibrilation	29
Heart Failure	40
Chronic Obstructive Pulmonary Disease	28
Diabetes	34
Dementia	29
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	194
inpatient care	194

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	96
Female	106

**Ethnicity**
Non-Hispanic White	132
Black	43
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	85
From 75 to 84	53
85 and over	21
Less than 65	43

Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS in 2014

Hypertension	75
High Cholesterol	66
Stroke	55
Ischemic Heart Disease	60
Depression	38
Chronic Kidney Disease	56
Asthma	12
Osteoperosis	11
Atrial Fibrilation	29
Heart Failure	44
Chronic Obstructive Pulmonary Disease	21
Diabetes	42
Dementia	23
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	173
inpatient care	173

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	194
Female	176

**Ethnicity**
Non-Hispanic White	244
Black	74
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	144
From 75 to 84	102
85 and over	60
Less than 65	64

Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS in 2015

Hypertension	75
High Cholesterol	69
Stroke	55
Ischemic Heart Disease	65
Depression	39
Chronic Kidney Disease	69
Asthma	16
Osteoperosis	10
Atrial Fibrilation	36
Heart Failure	52
Chronic Obstructive Pulmonary Disease	26
Diabetes	48
Dementia	32
Cancer	18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	150
inpatient care	150

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	101
Female	96

**Ethnicity**
Non-Hispanic White	121
Black	39
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	53
85 and over	33
Less than 65	38

Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS in 2016

Hypertension	75
High Cholesterol	69
Stroke	65
Ischemic Heart Disease	63
Depression	38
Chronic Kidney Disease	65
Asthma	25
Osteoperosis	11
Atrial Fibrilation	28
Heart Failure	47
Chronic Obstructive Pulmonary Disease	24
Diabetes	39
Dementia	38
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	146
inpatient care	146

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	80
Female	75

**Ethnicity**
Non-Hispanic White	95
Black	37
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	63
From 75 to 84	46
85 and over	16
Less than 65	30

Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS in 2017

Hypertension	75
High Cholesterol	70
Stroke	61
Ischemic Heart Disease	63
Depression	39
Chronic Kidney Disease	66
Asthma	0
Osteoperosis	11
Atrial Fibrilation	30
Heart Failure	50
Chronic Obstructive Pulmonary Disease	23
Diabetes	50
Dementia	39
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	60
inpatient care	60

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	37
Female	42

**Ethnicity**
Non-Hispanic White	52
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	23
From 75 to 84	23
85 and over	13
Less than 65	20

Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS in 2018

Hypertension	75
High Cholesterol	73
Stroke	58
Ischemic Heart Disease	61
Depression	29
Chronic Kidney Disease	65
Asthma	0
Osteoperosis	18
Atrial Fibrilation	23
Heart Failure	51
Chronic Obstructive Pulmonary Disease	29
Diabetes	43
Dementia	41
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	205
inpatient care	205

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	87
Female	84

**Ethnicity**
Non-Hispanic White	100
Black	41
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	62
From 75 to 84	50
85 and over	24
Less than 65	35

Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS in 2019

Hypertension	75
High Cholesterol	74
Stroke	63
Ischemic Heart Disease	0
Depression	37
Chronic Kidney Disease	67
Asthma	12
Osteoperosis	9
Atrial Fibrilation	30
Heart Failure	53
Chronic Obstructive Pulmonary Disease	0
Diabetes	42
Dementia	36
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	109
inpatient care	109

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	59
Female	47

**Ethnicity**
Non-Hispanic White	71
Black	24
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	46
From 75 to 84	31
85 and over	11
Less than 65	18

Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS in 2020

Hypertension	75
High Cholesterol	68
Stroke	57
Ischemic Heart Disease	60
Depression	44
Chronic Kidney Disease	69
Asthma	0
Osteoperosis	13
Atrial Fibrilation	29
Heart Failure	49
Chronic Obstructive Pulmonary Disease	22
Diabetes	36
Dementia	42
Cancer	22

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	67
inpatient care	67

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	63
Female	50

**Ethnicity**
Non-Hispanic White	66
Black	24
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	47
From 75 to 84	35
85 and over	17
Less than 65	14

Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS in 2021

Hypertension	75
High Cholesterol	73
Stroke	50
Ischemic Heart Disease	63
Depression	33
Chronic Kidney Disease	62
Asthma	0
Osteoperosis	12
Atrial Fibrilation	29
Heart Failure	39
Chronic Obstructive Pulmonary Disease	26
Diabetes	48
Dementia	40
Cancer	19

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

hospital care	18
inpatient care	18

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	37
Female	49

**Ethnicity**
Non-Hispanic White	55
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	34
From 75 to 84	23
85 and over	13
Less than 65	16

Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS in 2022

Hypertension	75
High Cholesterol	73
Stroke	75
Ischemic Heart Disease	57
Depression	31
Chronic Kidney Disease	42
Asthma	17
Osteoperosis	17
Atrial Fibrilation	40
Heart Failure	50
Chronic Obstructive Pulmonary Disease	27
Diabetes	38
Dementia	28
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Matthew B. Maas, MD, MS for Medicare patients.

The highest averages for the top procedures that Dr. Matthew B. Maas, MD, MS treated as a null in Chicago, IL were hospital care and inpatient care.

hospital care	128
inpatient care	128

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Matthew B. Maas, MD, MS.

**Gender**
Male	76
Female	75

**Ethnicity**
Black / African American	32
Asian / Pacific Islander	0
Non-Hispanic White	96
Native American / Alaskan Native	0
Hispanic	5
Other	0

**Age**
75 to 84	42
85 and over	21
Less than 65	28
65 to 74	58

Average of Total of Conditions of Medicare patients treated by Dr. Matthew B. Maas, MD, MS From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Matthew B. Maas, MD, MS treated were hypertension, high cholesterol, chronic kidney disease and stroke.

Hypertension	68
High Cholesterol	63
Stroke	54
Ischemic Heart Disease	49
Depression	33
Chronic Kidney Disease	56
Asthma	8
Osteoporosis	11
Heart Failure	43
Chronic Obstructive Pulmonary Disease	20
Diabetes	38
Atrial Fibrillation	27
Dementia	31
Cancer	13

Education & Training

Dr. Matthew B. Maas, MD, MS graduated from University of Washington School of Medicine in 2004. He completed residency at New York Presbyterian Hospital (Cornell Campus). He is certified by the Board Certification: NeuroCritical Care, The Society of Neurological Surgeons Committee on Advanced Subspecialty Training and has a state license in Illinois.

Medical School: University of Washington School of Medicine (2004)

Residency: New York Presbyterian Hospital (Cornell Campus) (2008)

Board Certification: Board Certification: NeuroCritical Care, The Society of Neurological Surgeons Committee on Advanced Subspecialty Training

Licensed In: Illinois

Affiliations & Hospitals

Dr. Matthew B. Maas, MD, MS is associated with these hospitals and organizations:

Northwestern Medicine

Northwestern University Clinical and Translational Sciences Institute (NUCATS)

Northwestern University Feinberg School of Medicine

Northwestern Medical Group (NMG)

Institute for Public Health and Medicine (IPHAM) - Center for Health Services & Outcomes Research

Center for Circadian and Sleep Medicine

Regenstein Center for Neurological Care

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General Payments

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

**Payments by Company**
BIOVENTUS LLC	$25 Durolane $25

**Types of Payments**
Food and Beverage	$25

Biography

Dr. Matthew Maas is a specialist in general practice, vascular neurology, and anesthesiology in Chicago, IL. Dr. Maas's areas of expertise consist of stroke and neurocritical care. He graduated from the University of Washington School of Medicine and then he performed his residency at New York-Presbyterian Hospital. He is conversant in Spanish. He is affiliated with Northwestern University Clinical and Translational Sciences Institute (NUCATS), Northwestern Medical Group (NMG), and Northwestern Medicine Lake Forest Hospital. Unfortunately, according to Yext, he is not currently accepting new patients.