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Dr. Ryan Tomas Brennan, DO

Accepting New Patients

(229 Ratings)

Specializes in: Neurology (Brain & Spinal Cord Disease)

Michigan State University College of Osteopathic Medicine (2011)

Professional interests include: deep brain stimulation (DBS), restless leg syndrome, botulinum toxin injection, and more.

4805 S. Moorland Road
New Berlin, WI 53151

(262) 798-7200

Dr. Ryan Tomas Brennan, DO is a neurologist in New Berlin, WI specializing in neurology (brain & spinal cord disease). He graduated from Michigan State University College of Osteopathic Medicine in 2011 and has 14 years of experience. Dr. Ryan Tomas Brennan, DO is affiliated with Froedtert Hospital, Froedtert & the Medical College of Wisconsin Regional Health Network, FROEDTERT ANDTHE MEDICAL COLLEGE OF WISCONSIN COMMUNITY PHYSICIANS INC and THE MEDICAL COLLEGE OF WISCONSIN INC.

Office Locations

Address:

4805 S. Moorland Road
New Berlin, WI 53151

Address:

900 N. 92nd Street
Milwaukee, WI 53226

Some issues Dr. Ryan Tomas Brennan, DO can help you with:

Deep Brain Stimulation (DBS)

Deep brain stimulation (DBS) is a procedure performed to help treat neurological conditions such as Parkinson's disease and epilepsy. Electrode leads are surgically implanted in the brain and connected to a device, called a neurostimulator (deep brain stimulator), that is placed underneath the skin (subcutaneously). The deep brain stimulator can send electrical signals through the electrodes to the brain to restore normal rhythms, or it can block electrical signals in specific areas of the brain to restore functioning. Although not a cure, DBS can treat symptoms of movement disorders such as pain and tremor when medication fails to work.

DBS surgery may be completed in one operating session, but it is more commonly performed in two parts. In the first stage of the procedure, the surgeon will map targets in the brain using CT or MRI imaging to determine where to place the electrodes. Then, by drilling holes into the skull, the surgeon will place the electrodes into specific areas in the brain. The holes will be closed, and patients will require 1-2 days to recover in the hospital. After about two weeks, patients will undergo another surgery to have the deep brain stimulator implanted. The stimulator is usually placed under the skin around the collarbone, chest, or abdomen, and it will be connected to the DBS electrodes through a subcutaneous wire. No component of the DBS system will be visible from outside. Following stimulator implantation, patients may need to recover in the hospital for 1-2 days.

Within 2-4 weeks of the operation, doctors will program the stimulator using a wireless device. Patients will work with their doctor to determine the most effective settings for the stimulator during follow-up visits. Patients will be given a handheld device so that they can turn the stimulator on or off and adjust its settings themselves. The stimulator may have a rechargeable battery, in which case patients will be given a charging unit. Stimulator batteries generally need to be replaced in 3-5 years.

doctor visit	48

**Gender**
Male	48
Female	43

**Age**
From 65 to 74	47
From 75 to 84	23
85 and over	0
Less than 65	0

Hypertension	64
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	26
Depression	35
Chronic Kidney Disease	29
Asthma	12
Osteoperosis	0
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	25
Cancer	12

doctor visit	223
hospital care	36
inpatient care	36

**Gender**
Male	118
Female	95

**Ethnicity**
Non-Hispanic White	179
Black	17
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	57
85 and over	17
Less than 65	40

Hypertension	61
High Cholesterol	59
Stroke	12
Ischemic Heart Disease	33
Depression	44
Chronic Kidney Disease	36
Asthma	9
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	26
Dementia	34
Cancer	14

doctor visit	269
hospital care	20
inpatient care	20

**Gender**
Male	128
Female	94

**Ethnicity**
Non-Hispanic White	181
Black	15
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	114
From 75 to 84	48
85 and over	17
Less than 65	43

Hypertension	60
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	32
Depression	45
Chronic Kidney Disease	33
Asthma	8
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	10
Diabetes	24
Dementia	32
Cancer	9

doctor visit	189
hospital care	10
inpatient care	10

**Gender**
Male	106
Female	81

**Ethnicity**
Non-Hispanic White	158
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	48
85 and over	19
Less than 65	30

Hypertension	52
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	28
Depression	39
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	18
Chronic Obstructive Pulmonary Disease	10
Diabetes	25
Dementia	28
Cancer	9

doctor visit	659
hospital care	34
inpatient care	34

Average Medicare Procedure Volume From 2017 - 2021

Volume of procedures performed by Dr. Ryan Tomas Brennan, DO for Medicare patients.

The highest averages for the top procedures that Dr. Ryan Tomas Brennan, DO treated as a neurologist in New Berlin, WI were hospital care and inpatient care.

doctor visit	279
hospital care	25
inpatient care	25

Average Medicare Patient Data From 2017 - 2021

Information about Medicare patients treated by Dr. Ryan Tomas Brennan, DO.

**Gender**
Male	40
Female	31

**Ethnicity**
Black / African American	4
Asian / Pacific Islander	0
Non-Hispanic White	51
Native American / Alaskan Native	0
Hispanic	1
Other	0

**Age**
85 and over	5
75 to 84	17
Less than 65	11
65 to 74	35

Average of Total of Conditions of Medicare patients treated by Dr. Ryan Tomas Brennan, DO From 2017 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. Ryan Tomas Brennan, DO treated were hypertension, high cholesterol, depression and chronic kidney disease.

Hypertension	23
High Cholesterol	22
Stroke	1
Ischemic Heart Disease	11
Depression	16
Chronic Kidney Disease	12
Asthma	3
Osteoporosis	3
Heart Failure	6
Chronic Obstructive Pulmonary Disease	3
Diabetes	9
Atrial Fibrillation	5
Dementia	11
Cancer	4

Education & Training

Dr. Ryan Tomas Brennan, DO graduated from Michigan State University College of Osteopathic Medicine in 2011. He completed residency at Medical College of Wisconsin Affiliated Hospitals. He is certified by the Neurology and has a state license in Nebraska.

Medical School: Michigan State University College of Osteopathic Medicine (2011)

Residency: Medical College of Wisconsin Affiliated Hospitals (2014)

Board Certification: Neurology

Licensed In: Nebraska

Affiliations & Hospitals

Dr. Ryan Tomas Brennan, DO is associated with these hospitals and organizations:

Froedtert Hospital

Froedtert & the Medical College of Wisconsin Regional Health Network

FROEDTERT ANDTHE MEDICAL COLLEGE OF WISCONSIN COMMUNITY PHYSICIANS INC

THE MEDICAL COLLEGE OF WISCONSIN INC

Ratings & Reviews

Dr. Ryan Tomas Brennan, DO has an exceptional overall rating with an average of 4.92 out of 5 stars based on 229 ratings. We collect ratings and reviews of Dr. Ryan Tomas Brennan, DO from all over the web to help you find the right in New Berlin, WI.

4.92

Overall Rating

(229 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2021-10-24

Dr. Brennan and his staff are FABULOUS!! He has a great bedside manner, is thorough, never seems rushed, takes the time to listen and make you feel like you are his most important patient, which is why sometimes he runs a little behind. When presenting a new treatment, he provides several options, takes the time to explain each of them and for you to ask questions. Then we have a discussion about how to proceed in a way that is comfortable for you. We can't say enough good things about him and he has been a godsend from my husband who has Parkinsons. As a caregiver, he also takes the time listen to everything that is going on in the house and makes suggestions/recommendations depending upon what is needed. He really cares about his patients and how their diseases impact the family. He and his staff are the best!!

Reviews From Around The Web

Overall Rating: 5.0 2024-04-11