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Home > MO Providers > Neurologists

Dr. Brian Keith Day, MD, PhD

(10 Ratings)

Specializes in: Neurology (Brain & Spinal Cord Disease)

Professional interests include: video EEG, epilepsy surgery

4921 Parkview Place Floor: 6, Suite: C
Saint Louis, MO 63110

(314) 362-7845

Dr. Brian Keith Day, MD, PhD is a neurologist in Saint Louis, MO specializing in neurology (brain & spinal cord disease). Dr. Brian Keith Day, MD, PhD is affiliated with WashU Medicine and Barnes-Jewish Hospital.

Office Locations

1 Barnes Jewish Hospital Plaza
Saint Louis, MO 63110

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Barnes-Jewish Hospital

4921 Parkview Place Floor: 6, Suite: C
Saint Louis, MO 63110

(314) 362-7845

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Noteworthy Medicare Patient Procedures Performed by Dr. Brian Keith Day, MD, PhD in 2023

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

Top 25%

By Volume:

electroencephalography

In 2012, Dr. Brian Keith Day, MD, PhD performed more electroencephalography (EEG) procedures for Medicare patients than 75% of providers in related specialties within Missouri.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2012 were electroencephalography (EEG).

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

doctor visit	12
electroencephalography (EEG)	89

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2013 were electroencephalography (EEG), hospital care and inpatient care.

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

doctor visit	164
electroencephalography (EEG)	240
hospital care	52
inpatient care	52

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	122
Female	140

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

**Age**
From 65 to 74	66
From 75 to 84	40
85 and over	15
Less than 65	141

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2013

Hypertension	60
High Cholesterol	44
Stroke	17
Ischemic Heart Disease	31
Depression	40
Chronic Kidney Disease	27
Asthma	11
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	23
Chronic Obstructive Pulmonary Disease	15
Diabetes	28
Dementia	21
Cancer	8

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2014 were electroencephalography (EEG), hospital care and inpatient care.

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

doctor visit	156
electroencephalography (EEG)	162
hospital care	43
inpatient care	43

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	118
Female	104

**Ethnicity**
Non-Hispanic White	161
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	65
From 75 to 84	30
85 and over	11
Less than 65	116

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2014

Hypertension	55
High Cholesterol	45
Stroke	19
Ischemic Heart Disease	33
Depression	34
Chronic Kidney Disease	30
Asthma	10
Osteoperosis	7
Atrial Fibrilation	8
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	26
Dementia	17
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2015 were electroencephalography (EEG), hospital care and inpatient care.

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

doctor visit	176
electroencephalography (EEG)	111
hospital care	46
inpatient care	46

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	234
Female	194

**Ethnicity**
Non-Hispanic White	302
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	0
85 and over	0
Less than 65	236

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2015

Hypertension	51
High Cholesterol	41
Stroke	15
Ischemic Heart Disease	25
Depression	38
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	7
Atrial Fibrilation	7
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	22
Dementia	15
Cancer	7

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2016 were electroencephalography (EEG), hospital care, inpatient care and ambulatory monitoring.

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

ambulatory monitoring	18
doctor visit	262
electroencephalography (EEG)	685
hospital care	103
inpatient care	103

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	298
Female	322

**Ethnicity**
Non-Hispanic White	442
Black	161
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	194
From 75 to 84	105
85 and over	46
Less than 65	275

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2016

Hypertension	68
High Cholesterol	54
Stroke	31
Ischemic Heart Disease	45
Depression	46
Chronic Kidney Disease	47
Asthma	26
Osteoperosis	5
Atrial Fibrilation	15
Heart Failure	34
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Dementia	32
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2017 were electroencephalography (EEG), hospital care, inpatient care and ambulatory monitoring.

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

ambulatory monitoring	22
doctor visit	266
electroencephalography (EEG)	595
hospital care	96
inpatient care	96

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	304
Female	268

**Ethnicity**
Non-Hispanic White	396
Black	153
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	97
85 and over	34
Less than 65	265

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2017

Hypertension	67
High Cholesterol	47
Stroke	28
Ischemic Heart Disease	40
Depression	40
Chronic Kidney Disease	45
Asthma	8
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	28
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	29
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2018 were electroencephalography (EEG), hospital care, inpatient care and ambulatory monitoring.

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

ambulatory monitoring	25
doctor visit	238
electroencephalography (EEG)	590
hospital care	55
inpatient care	55

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	270
Female	261

**Ethnicity**
Non-Hispanic White	372
Black	141
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	166
From 75 to 84	106
85 and over	32
Less than 65	227

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2018

Hypertension	67
High Cholesterol	53
Stroke	27
Ischemic Heart Disease	41
Depression	38
Chronic Kidney Disease	45
Asthma	9
Osteoperosis	8
Atrial Fibrilation	15
Heart Failure	28
Chronic Obstructive Pulmonary Disease	23
Diabetes	34
Dementia	34
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2019 were electroencephalography (EEG), hospital care, inpatient care and ambulatory monitoring.

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

ambulatory monitoring	17
doctor visit	242
electroencephalography (EEG)	548
hospital care	53
inpatient care	53

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	281
Female	254

**Ethnicity**
Non-Hispanic White	366
Black	139
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	146
From 75 to 84	93
85 and over	34
Less than 65	262

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2019

Hypertension	67
High Cholesterol	53
Stroke	25
Ischemic Heart Disease	41
Depression	41
Chronic Kidney Disease	50
Asthma	9
Osteoperosis	8
Atrial Fibrilation	16
Heart Failure	31
Chronic Obstructive Pulmonary Disease	21
Diabetes	38
Dementia	30
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2020 were electroencephalography (EEG).

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

doctor visit	132
electroencephalography (EEG)	159

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	208
Female	207

**Ethnicity**
Non-Hispanic White	278
Black	110
Hispanic	0
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	71
85 and over	19
Less than 65	210

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2020

Hypertension	60
High Cholesterol	49
Stroke	25
Ischemic Heart Disease	38
Depression	36
Chronic Kidney Disease	45
Asthma	7
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	29
Chronic Obstructive Pulmonary Disease	18
Diabetes	33
Dementia	30
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2021 were electroencephalography (EEG).

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

doctor visit	129
electroencephalography (EEG)	152

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	195
Female	190

**Ethnicity**
Non-Hispanic White	261
Black	97
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	111
From 75 to 84	75
85 and over	13
Less than 65	186

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2021

Hypertension	65
High Cholesterol	52
Stroke	25
Ischemic Heart Disease	38
Depression	36
Chronic Kidney Disease	45
Asthma	7
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	26
Chronic Obstructive Pulmonary Disease	15
Diabetes	32
Dementia	29
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2022 were electroencephalography (EEG).

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

doctor visit	163
electroencephalography (EEG)	105

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	164
Female	152

**Ethnicity**
Non-Hispanic White	218
Black	70
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	94
From 75 to 84	52
85 and over	16
Less than 65	154

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2022

Hypertension	64
High Cholesterol	58
Stroke	30
Ischemic Heart Disease	25
Depression	35
Chronic Kidney Disease	28
Asthma	12
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	22
Chronic Obstructive Pulmonary Disease	21
Diabetes	32
Dementia	21
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO during 2023 were electroencephalography (EEG).

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

doctor visit	148
electroencephalography (EEG)	100

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Male	143
Female	150

**Ethnicity**
Non-Hispanic White	210
Black	64
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	98
From 75 to 84	58
85 and over	19
Less than 65	118

Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD in 2023

Hypertension	67
High Cholesterol	63
Stroke	33
Ischemic Heart Disease	26
Depression	35
Chronic Kidney Disease	30
Asthma	8
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	24
Chronic Obstructive Pulmonary Disease	18
Diabetes	30
Dementia	24
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Brian Keith Day, MD, PhD for Medicare patients.

The highest averages for the top procedures that Dr. Brian Keith Day, MD, PhD treated as a neurologist in Saint Louis, MO were electroencephalography (EEG), hospital care, inpatient care and ambulatory monitoring.

ambulatory monitoring	20
doctor visit	174
electroencephalography (EEG)	294
hospital care	64
inpatient care	64

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Brian Keith Day, MD, PhD.

**Gender**
Female	186
Male	194

**Ethnicity**
Black / African American	77
Asian / Pacific Islander	0
Non-Hispanic White	265
Native American / Alaskan Native	0
Hispanic	0
Other	3

**Age**
85 and over	19
75 to 84	60
Less than 65	182
65 to 74	112

Average of Total of Conditions of Medicare patients treated by Dr. Brian Keith Day, MD, PhD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Brian Keith Day, MD, PhD treated were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	57
High Cholesterol	46
Stroke	22
Ischemic Heart Disease	31
Depression	34
Chronic Kidney Disease	34
Asthma	9
Osteoporosis	7
Heart Failure	23
Chronic Obstructive Pulmonary Disease	16
Diabetes	28
Atrial Fibrillation	12
Dementia	23
Cancer	10

Education & Training

He completed residency at Washington University Medical Center in St. Louis. He is certified by the Neurology and has a state license in Missouri.

Residency: Washington University Medical Center in St. Louis (2011)

Board Certification: Neurology

Licensed In: Missouri

Affiliations & Hospitals

Dr. Brian Keith Day, MD, PhD is associated with these hospitals and organizations:

WashU Medicine

Barnes-Jewish Hospital

Ratings & Reviews

Dr. Brian Keith Day, MD, PhD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 10 ratings. We collect ratings and reviews of Dr. Brian Keith Day, MD, PhD from all over the web to help you find the right in Saint Louis, MO.

Overall Rating

(10 Ratings)

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General Payments

These charts describe general payments received by Dr. Brian Keith Day, MD, PhD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Upsher-Smith Laboratories Inc.	$1,769 $1,769
Cyberonics, Inc.	$129 VNS Therapy $129
Aesculap Implant Systems, LLC	$56 Spine $56

**Types of Payments**
Travel and Lodging	$1,239
Food and Beverage	$715

Biography

Dr. Brian Day practices neurology (brain & spinal cord disease) in Saint Louis, MO. Dr. Day's patients gave him an average rating of 5.0 stars (out of 5). Areas of particular interest for Dr. Day include video EEG, epilepsy, and epilepsy surgery. His hospital/clinic affiliations include WashU Medicine and Barnes-Jewish Hospital. BJC HealthCare reports that he is accepting new patients at his office in Saint Louis, MO. After attending the University of Kentucky College of Medicine for medical school, he completed his residency training at Washington University Medical Center in St. Louis.