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Dr. William A. Brennan, MD

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Specializes in: Neurosurgery

4212 W Congress Street Suite 3500
Lafayette, LA 70506

(337) 981-2125

Dr. William A. Brennan, MD is a neurosurgeon in Lafayette, LA specializing in neurosurgery.

Office Locations

4212 W Congress Street Suite 3500
Lafayette, LA 70506

(337) 981-2125

(337) 981-2174

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William A. Brennan, MD treated as a neurosurgeon in Lafayette, LA during 2012 were hospital care, inpatient care, spinal procedures and nerve procedures.

Volume of procedures performed by Dr. William A. Brennan, MD for Medicare patients.

decompression surgery	30
doctor visit	460
hospital care	77
inpatient care	77
nerve procedures	30
spinal procedures	48

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William A. Brennan, MD treated as a neurosurgeon in Lafayette, LA during 2013 were hospital care, inpatient care, spinal procedures and nerve procedures.

Volume of procedures performed by Dr. William A. Brennan, MD for Medicare patients.

decompression surgery	47
doctor visit	414
hospital care	245
inpatient care	245
neck surgery	12
nerve procedures	47
spinal procedures	75

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Brennan, MD.

**Gender**
Male	199
Female	234

**Ethnicity**
Non-Hispanic White	314
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	133
From 75 to 84	91
85 and over	29
Less than 65	180

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2013

Hypertension	75
High Cholesterol	60
Stroke	16
Ischemic Heart Disease	51
Depression	36
Chronic Kidney Disease	24
Asthma	9
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	24
Chronic Obstructive Pulmonary Disease	23
Diabetes	36
Dementia	12
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William A. Brennan, MD treated as a neurosurgeon in Lafayette, LA during 2014 were hospital care, inpatient care, spinal procedures and nerve procedures.

Volume of procedures performed by Dr. William A. Brennan, MD for Medicare patients.

decompression surgery	32
doctor visit	342
hospital care	59
inpatient care	59
nerve procedures	32
spinal procedures	48

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Brennan, MD.

**Gender**
Male	140
Female	188

**Ethnicity**
Non-Hispanic White	248
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	112
From 75 to 84	76
85 and over	21
Less than 65	119

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2014

Hypertension	75
High Cholesterol	63
Stroke	12
Ischemic Heart Disease	53
Depression	38
Chronic Kidney Disease	28
Asthma	10
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	23
Chronic Obstructive Pulmonary Disease	21
Diabetes	36
Dementia	12
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William A. Brennan, MD treated as a neurosurgeon in Lafayette, LA during 2015 were hospital care, inpatient care, spinal procedures and nerve procedures.

Volume of procedures performed by Dr. William A. Brennan, MD for Medicare patients.

arthrodesis (bone fusion surgery)	25
decompression surgery	45
doctor visit	172
hospital care	88
inpatient care	88
neck surgery	25
nerve procedures	45
spinal procedures	88

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Brennan, MD.

**Gender**
Male	206
Female	328

**Ethnicity**
Non-Hispanic White	382
Black	130
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	116
85 and over	48
Less than 65	194

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2015

Hypertension	75
High Cholesterol	63
Stroke	18
Ischemic Heart Disease	47
Depression	39
Chronic Kidney Disease	29
Asthma	14
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	22
Chronic Obstructive Pulmonary Disease	21
Diabetes	43
Dementia	17
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William A. Brennan, MD treated as a neurosurgeon in Lafayette, LA during 2016 were hospital care, inpatient care, spinal procedures and nerve procedures.

Volume of procedures performed by Dr. William A. Brennan, MD for Medicare patients.

decompression surgery	31
doctor visit	219
hospital care	76
inpatient care	76
nerve procedures	31
spinal procedures	64

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Brennan, MD.

**Gender**
Male	110
Female	145

**Ethnicity**
Non-Hispanic White	187
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	117
From 75 to 84	56
85 and over	20
Less than 65	62

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2016

Hypertension	75
High Cholesterol	64
Stroke	22
Ischemic Heart Disease	55
Depression	41
Chronic Kidney Disease	33
Asthma	22
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	25
Chronic Obstructive Pulmonary Disease	22
Diabetes	41
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William A. Brennan, MD treated as a neurosurgeon in Lafayette, LA during 2017 were hospital care, inpatient care, spinal procedures and nerve procedures.

Volume of procedures performed by Dr. William A. Brennan, MD for Medicare patients.

decompression surgery	32
doctor visit	293
hospital care	65
inpatient care	65
nerve procedures	32
spinal procedures	54

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Brennan, MD.

**Gender**
Male	116
Female	116

**Ethnicity**
Non-Hispanic White	184
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	61
85 and over	21
Less than 65	34

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2017

Hypertension	75
High Cholesterol	61
Stroke	15
Ischemic Heart Disease	56
Depression	31
Chronic Kidney Disease	38
Asthma	5
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	21
Chronic Obstructive Pulmonary Disease	20
Diabetes	39
Dementia	21
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William A. Brennan, MD treated as a neurosurgeon in Lafayette, LA during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. William A. Brennan, MD for Medicare patients.

doctor visit	95
hospital care	45
inpatient care	45

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Brennan, MD.

**Gender**
Male	49
Female	59

**Ethnicity**
Non-Hispanic White	93
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	47
From 75 to 84	37
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2018

Hypertension	75
High Cholesterol	61
Stroke	29
Ischemic Heart Disease	52
Depression	31
Chronic Kidney Disease	36
Asthma	0
Osteoperosis	12
Atrial Fibrilation	19
Heart Failure	19
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	18
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. William A. Brennan, MD for Medicare patients.

doctor visit	53

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Brennan, MD.

**Gender**
Male	19
Female	21

**Age**
From 65 to 74	22
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2019

Hypertension	75
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	58
Depression	33
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	30
Chronic Obstructive Pulmonary Disease	0
Diabetes	28
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. William A. Brennan, MD for Medicare patients.

doctor visit	64

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Brennan, MD.

**Gender**
Male	22
Female	28

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

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2020

Hypertension	75
High Cholesterol	72
Stroke	0
Ischemic Heart Disease	56
Depression	26
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	72
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2021

Volume of procedures performed by Dr. William A. Brennan, MD for Medicare patients.

The highest averages for the top procedures that Dr. William A. Brennan, MD treated as a neurosurgeon in Lafayette, LA were hospital care, inpatient care, spinal procedures and nerve procedures.

arthrodesis (bone fusion surgery)	25
decompression surgery	36
doctor visit	234
hospital care	93
inpatient care	93
neck surgery	18
nerve procedures	36
spinal procedures	62

Average Medicare Patient Data From 2012 - 2021

Information about Medicare patients treated by Dr. William A. Brennan, MD.

**Gender**
Male	86
Female	111

**Ethnicity**
Black / African American	13
Asian / Pacific Islander	0
Non-Hispanic White	140
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	43
85 and over	13
Less than 65	58
65 to 74	75

Average of Total of Conditions of Medicare patients treated by Dr. William A. Brennan, MD From 2012 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. William A. Brennan, MD treated were hypertension, high cholesterol, ischemic heart disease and depression.

Hypertension	67
High Cholesterol	57
Stroke	11
Ischemic Heart Disease	50
Depression	27
Chronic Kidney Disease	21
Asthma	6
Osteoporosis	5
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	25
Atrial Fibrillation	7
Cancer	6
Dementia	9

Education & Training

He has a state license in Louisiana.

Licensed In: Louisiana

Ratings & Reviews

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General Payments

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

**Payments by Company**
Zimmer Biomet Holdings, Inc.	$3,000 ROI C $3,000
Medtronic Xomed, Inc.	$2,176 Intra-Operative Imaging Products $1,609	Image Guided Surgery Products $567
LDR SPINE USA, INC	$1,853 Spinal Implant $1,853
Medtronic Sofamor Danek USA, Inc.	$718 Image Guided Surgery Products $194	Thoracolumbar - TL Therapies $183	ATLANTIS $137	Biologics Therapies $106	Cervical and Trauma Therapies $45	Other $53
Medtronic USA, Inc.	$328 CD HORIZON $328
Other	$705 Spine $249	ANCHOR L $144	COFLEX $116	Bone Marrow Aspirate Concentrate System $46	EPIDUO FORTE $37	Other $113

**Types of Payments**
Travel and Lodging	$3,784
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$3,000
Food and Beverage	$1,995

Biography

Dr. William Brennan specializes in neurosurgery and practices in Lafayette, LA. Dr. Brennan has obtained a license to practice in Louisiana.

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Dr. William A. Brennan, MD

Office Locations

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. William A. Brennan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2020

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. William A. Brennan, MD in 2021

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2021

Average Medicare Patient Data From 2012 - 2021

Average of Total of Conditions of Medicare patients treated by Dr. William A. Brennan, MD From 2012 - 2021

Education & Training

Ratings & Reviews

General Payments

Biography

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