In 2023, among providers in related specialties within Louisiana, Dr. Donald Severinus Gervais JR., MD performed more joint aspiration procedures for Medicare patients than 95% of them and he also had a list price for carpal tunnel injection, laryngeal electromyography, laryngeal needle electromyography, sciatic nerve block, and sciatic nerve block injection that was lower than the list prices billed to Medicare by 95% of them. 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.

Top 10%

By Volume:

electrodiagnostic testing

evoked potential test

In 2023, Dr. Donald Severinus Gervais JR., MD performed more electrodiagnostic testing, and evoked potential test procedures for Medicare patients than 90% of providers in related specialties within Louisiana.

Top 25%

By Volume:

injections

needle electromyography

By Affordability:

electromyography

motor evoked potential test

needle electromyography

needle electromyography of extremity

In 2012, among providers in related specialties within Louisiana, Dr. Donald Severinus Gervais JR., MD performed more injections, and needle electromyography procedures for Medicare patients than 75% of them and he also had a list price for electromyography (EMG), motor evoked potential test, needle electromyography, and needle electromyography of extremity (arm or leg) that was lower than the list prices billed to Medicare by 75% of them. 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. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2012 were diagnostic procedures, hospital care, inpatient care and electroencephalography (EEG).

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

diagnostic procedures	4065
doctor visit	2008
electroencephalography (EEG)	299
hospital care	813
injections	286
inpatient care	813
nerve block	162
pain management	180
ultrasound (sonogram)	179
vascular procedures	179

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2013 were hospital care, inpatient care, diagnostic procedures and electroencephalography (EEG).

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

diagnostic procedures	515
doctor visit	2513
electroencephalography (EEG)	447
evoked potential test	67
hospital care	900
injections	297
inpatient care	900
nerve block	137
pain management	183
ultrasound (sonogram)	208
vascular procedures	208

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	540
Female	623

**Ethnicity**
Non-Hispanic White	985
Black	144
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	408
From 75 to 84	340
85 and over	120
Less than 65	295

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2013

Hypertension	75
High Cholesterol	66
Stroke	26
Ischemic Heart Disease	57
Depression	32
Chronic Kidney Disease	27
Asthma	8
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	27
Chronic Obstructive Pulmonary Disease	22
Diabetes	37
Dementia	25
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2014 were hospital care, inpatient care, electroencephalography (EEG) and diagnostic procedures.

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

diagnostic procedures	458
doctor visit	1833
electroencephalography (EEG)	471
evoked potential test	174
hospital care	985
injections	243
inpatient care	985
nerve block	134
pain management	124
ultrasound (sonogram)	175
vascular procedures	175

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	552
Female	604

**Ethnicity**
Non-Hispanic White	984
Black	138
Hispanic	0
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	407
From 75 to 84	319
85 and over	100
Less than 65	330

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2014

Hypertension	75
High Cholesterol	66
Stroke	25
Ischemic Heart Disease	57
Depression	33
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	23
Diabetes	39
Dementia	24
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2015 were injections, hospital care, inpatient care and diagnostic procedures.

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

diagnostic procedures	551
doctor visit	3580
electroencephalography (EEG)	335
evoked potential test	252
hospital care	589
injections	619
inpatient care	589
minimally invasive procedures	23
nerve block	269
pain management	320
ultrasound (sonogram)	180
vascular procedures	180

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	1076
Female	1370

**Ethnicity**
Non-Hispanic White	2056
Black	292
Hispanic	30
Asian	0
Other	38
Native American	0

**Age**
From 65 to 74	906
From 75 to 84	652
85 and over	224
Less than 65	664

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2015

Hypertension	75
High Cholesterol	64
Stroke	24
Ischemic Heart Disease	54
Depression	34
Chronic Kidney Disease	26
Asthma	13
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	24
Chronic Obstructive Pulmonary Disease	20
Diabetes	39
Dementia	21
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2016 were diagnostic procedures, injections, blood draw and electroencephalography (EEG).

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

blood draw	434
diagnostic procedures	637
doctor visit	4027
electroencephalography (EEG)	339
evoked potential test	323
hospital care	306
injections	528
inpatient care	306
minimally invasive procedures	21
nerve block	167
pain management	302
ultrasound (sonogram)	224
vascular procedures	224

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	565
Female	736

**Ethnicity**
Non-Hispanic White	1095
Black	149
Hispanic	20
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	476
From 75 to 84	341
85 and over	112
Less than 65	372

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2016

Hypertension	75
High Cholesterol	62
Stroke	24
Ischemic Heart Disease	52
Depression	30
Chronic Kidney Disease	31
Asthma	19
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	22
Chronic Obstructive Pulmonary Disease	18
Diabetes	37
Dementia	22
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2017 were diagnostic procedures, injections, electroencephalography (EEG) and evoked potential test.

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

blood draw	151
diagnostic procedures	738
doctor visit	3806
electroencephalography (EEG)	353
evoked potential test	343
hospital care	67
injections	521
inpatient care	67
nerve block	210
pain management	304
ultrasound (sonogram)	222
vascular procedures	222

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	607
Female	715

**Ethnicity**
Non-Hispanic White	1100
Black	175
Hispanic	18
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	499
From 75 to 84	359
85 and over	100
Less than 65	364

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2017

Hypertension	75
High Cholesterol	56
Stroke	21
Ischemic Heart Disease	52
Depression	28
Chronic Kidney Disease	32
Asthma	6
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	37
Dementia	22
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2018 were diagnostic procedures, electroencephalography (EEG), injections and evoked potential test.

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

ambulatory monitoring	75
diagnostic procedures	588
doctor visit	2989
electroencephalography (EEG)	386
evoked potential test	273
injections	366
minimally invasive procedures	31
nerve block	103
pain management	187
ultrasound (sonogram)	171
vascular procedures	171

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	510
Female	676

**Ethnicity**
Non-Hispanic White	987
Black	154
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	418
From 75 to 84	321
85 and over	94
Less than 65	353

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2018

Hypertension	75
High Cholesterol	65
Stroke	16
Ischemic Heart Disease	46
Depression	31
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	36
Dementia	22
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2019 were diagnostic procedures, injections, evoked potential test and electroencephalography (EEG).

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

ambulatory monitoring	39
bulbocavernosus reflex testing	11
diagnostic procedures	645
doctor visit	2305
electroencephalography (EEG)	305
evoked potential test	339
injections	365
minimally invasive procedures	24
nerve block	133
pain management	191
ultrasound (sonogram)	194
vascular procedures	194

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	459
Female	610

**Ethnicity**
Non-Hispanic White	893
Black	133
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	424
From 75 to 84	256
85 and over	0
Less than 65	307

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2019

Hypertension	75
High Cholesterol	66
Stroke	18
Ischemic Heart Disease	44
Depression	37
Chronic Kidney Disease	31
Asthma	7
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	34
Dementia	20
Cancer	7

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2020 were diagnostic procedures, evoked potential test, injections and electroencephalography (EEG).

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

diagnostic procedures	484
doctor visit	1663
electroencephalography (EEG)	205
evoked potential test	368
injections	240
nerve block	110
pain management	137
ultrasound (sonogram)	176
vascular procedures	176

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	345
Female	425

**Ethnicity**
Non-Hispanic White	652
Black	85
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	304
From 75 to 84	188
85 and over	47
Less than 65	231

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2020

Hypertension	75
High Cholesterol	65
Stroke	13
Ischemic Heart Disease	44
Depression	35
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	12
Atrial Fibrilation	8
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	33
Dementia	20
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2021 were diagnostic procedures, evoked potential test, electroencephalography (EEG) and injections.

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

diagnostic procedures	465
doctor visit	1245
electroencephalography (EEG)	208
evoked potential test	312
injections	205
nerve block	85
pain management	106
ultrasound (sonogram)	108
vascular procedures	108

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	308
Female	392

**Ethnicity**
Non-Hispanic White	575
Black	83
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	286
From 75 to 84	152
85 and over	48
Less than 65	214

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2021

Hypertension	75
High Cholesterol	66
Stroke	10
Ischemic Heart Disease	42
Depression	32
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	18
Cancer	7

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2022 were diagnostic procedures, evoked potential test, injections and electroencephalography (EEG).

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

aspiration	33
diagnostic procedures	398
doctor visit	1159
electroencephalography (EEG)	196
evoked potential test	280
injections	198
nerve block	16
pain management	95
ultrasound (sonogram)	110
vascular procedures	110

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	308
Female	356

**Ethnicity**
Non-Hispanic White	540
Black	86
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	284
From 75 to 84	172
85 and over	39
Less than 65	169

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	19
Ischemic Heart Disease	35
Depression	29
Chronic Kidney Disease	20
Asthma	9
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	14
Chronic Obstructive Pulmonary Disease	17
Diabetes	32
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA during 2023 were diagnostic procedures, evoked potential test, injections and electroencephalography (EEG).

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

aspiration	29
diagnostic procedures	295
doctor visit	590
electroencephalography (EEG)	94
evoked potential test	215
injections	104
nerve block	19
pain management	38
ultrasound (sonogram)	83
vascular procedures	83

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	233
Female	272

**Ethnicity**
Non-Hispanic White	429
Black	51
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	151
85 and over	24
Less than 65	109

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	20
Ischemic Heart Disease	33
Depression	33
Chronic Kidney Disease	19
Asthma	10
Osteoperosis	15
Atrial Fibrilation	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	18
Diabetes	33
Dementia	14
Cancer	7

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Donald Severinus Gervais JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. Donald Severinus Gervais JR., MD treated as a neurologist in Gray, LA were diagnostic procedures, inpatient care, hospital care and injections.

ambulatory monitoring	57
aspiration	31
blood draw	292
diagnostic procedures	819
doctor visit	2309
electroencephalography (EEG)	303
evoked potential test	267
hospital care	610
injections	331
inpatient care	610
minimally invasive procedures	24
nerve block	128
pain management	180
ultrasound (sonogram)	169
vascular procedures	169

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Donald Severinus Gervais JR., MD.

**Gender**
Male	458
Female	564

**Ethnicity**
Black / African American	124
Asian / Pacific Islander	0
Non-Hispanic White	858
Hispanic	10
Native American / Alaskan Native	0
Other	12

**Age**
75 to 84	270
85 and over	75
Less than 65	284
65 to 74	386

Average of Total of Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Donald Severinus Gervais JR., MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	68
High Cholesterol	60
Stroke	18
Ischemic Heart Disease	43
Depression	29
Chronic Kidney Disease	25
Asthma	8
Osteoporosis	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	32
Atrial Fibrillation	10
Cancer	7
Dementia	18

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. Donald Severinus Gervais JR., MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AbbVie Inc.	$55,119 UBRELVY $47,092	QULIPTA $7,793	BOTOX $235
Amgen Inc.	$36,515 Aimovig $34,973	Repatha $121	$1,420
Depomed, Inc.	$23,897 Gralise $16,686	Zipsor $3,328	Gralise and Zipsor $3,252	Cambia $274	Nucynta $260	Other $96
UCB, Inc.	$22,974 Vimpat $21,643	Briviact $1,187	Rystiggo $22	Neupro $2	$120
Sunovion Pharmaceuticals Inc.	$22,255 APTIOM $21,980	KYNMOBI $275
Other	$69,957 UBRELVY $16,163	ONZETRA Xsail $9,097	VYEPTI $3,667	Sumavel DosePro $2,184	NUPLAZID $1,506	Other $37,340

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$156,122
Food and Beverage	$41,999
Consulting Fee	$13,956
Travel and Lodging	$11,029
Education	$4,552
Other	$3,061

Research Payments

Dr. Donald Severinus Gervais JR., MD has received 10 research payments totaling $42,802.

Biography

Dr. Donald Gervais specializes in neurology (brain & spinal cord disease) and practices in Gray, LA, Thibodaux, LA, and Metairie, LA. He graduated from Louisiana State University School of Medicine in New Orleans.

Select Year:

Dr. Donald Severinus Gervais JR., MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Donald Severinus Gervais JR., MD in 2023

By Volume:

By Affordability:

By Volume:

By Volume:

By Affordability:

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. Donald Severinus Gervais JR., MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Donald Severinus Gervais JR., MD From 2012 - 2023

Education & Training

Ratings & Reviews

General Payments

Research Payments

Biography

Other Providers in Gray, LA