In 2023, Dr. Gary Joseph Barrett, MD had a list price for flu shot, flu vaccine, immunization (preventive vaccines), and vaccines that was lower than the list prices billed to Medicare by 90% of providers in related specialties within South Carolina. 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. Gary Joseph Barrett, MD treated as an internist in Loris, SC during 2012 were lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

doctor visit	2255
lab tests	550
preventive care	183
vaccines	109

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gary Joseph Barrett, MD treated as an internist in Loris, SC during 2013 were lab tests, preventive care, vaccines and cardiac procedures.

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

ambulatory monitoring	13
cardiac procedures	13
doctor visit	2041
lab tests	454
preventive care	160
vaccines	103

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	132
Female	153

**Ethnicity**
Non-Hispanic White	239
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	131
From 75 to 84	83
85 and over	44
Less than 65	27

Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	64
Depression	13
Chronic Kidney Disease	19
Asthma	25
Osteoperosis	5
Atrial Fibrilation	17
Heart Failure	33
Chronic Obstructive Pulmonary Disease	28
Diabetes	41
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gary Joseph Barrett, MD treated as an internist in Loris, SC during 2014 were lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

doctor visit	1851
lab tests	268
preventive care	170
vaccines	109

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	131
Female	147

**Ethnicity**
Non-Hispanic White	236
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	80
85 and over	38
Less than 65	30

Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	57
Depression	10
Chronic Kidney Disease	21
Asthma	18
Osteoperosis	4
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	31
Diabetes	41
Dementia	11
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gary Joseph Barrett, MD treated as an internist in Loris, SC during 2015 were lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

doctor visit	1814
lab tests	222
preventive care	125
vaccines	81

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	274
Female	298

**Ethnicity**
Non-Hispanic White	486
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	158
85 and over	76
Less than 65	60

Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	52
Depression	14
Chronic Kidney Disease	27
Asthma	20
Osteoperosis	4
Atrial Fibrilation	15
Heart Failure	22
Chronic Obstructive Pulmonary Disease	36
Diabetes	42
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gary Joseph Barrett, MD treated as an internist in Loris, SC during 2016 were lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

doctor visit	1833
lab tests	190
preventive care	124
vaccines	92

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	152
Female	154

**Ethnicity**
Non-Hispanic White	262
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	91
85 and over	39
Less than 65	29

Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	48
Depression	15
Chronic Kidney Disease	35
Asthma	27
Osteoperosis	5
Atrial Fibrilation	16
Heart Failure	23
Chronic Obstructive Pulmonary Disease	30
Diabetes	44
Dementia	13
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gary Joseph Barrett, MD treated as an internist in Loris, SC during 2017 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

doctor visit	1739
lab tests	97
preventive care	195
vaccines	176

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	146
Female	153

**Ethnicity**
Non-Hispanic White	256
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	149
From 75 to 84	90
85 and over	36
Less than 65	24

Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	47
Depression	13
Chronic Kidney Disease	34
Asthma	13
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	29
Diabetes	39
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gary Joseph Barrett, MD treated as an internist in Loris, SC during 2018 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

doctor visit	1769
lab tests	86
preventive care	177
vaccines	151

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	175
Female	165

**Ethnicity**
Non-Hispanic White	286
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	166
From 75 to 84	99
85 and over	43
Less than 65	32

Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	44
Depression	16
Chronic Kidney Disease	37
Asthma	8
Osteoperosis	5
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	27
Diabetes	37
Dementia	11
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gary Joseph Barrett, MD treated as an internist in Loris, SC during 2019 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

doctor visit	1521
lab tests	96
preventive care	100
vaccines	100

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	161
Female	153

**Ethnicity**
Non-Hispanic White	269
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	99
85 and over	40
Less than 65	24

Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	43
Depression	16
Chronic Kidney Disease	35
Asthma	8
Osteoperosis	4
Atrial Fibrilation	11
Heart Failure	22
Chronic Obstructive Pulmonary Disease	23
Diabetes	36
Dementia	10
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gary Joseph Barrett, MD treated as an internist in Loris, SC during 2020 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

doctor visit	1230
lab tests	30
preventive care	89
vaccines	89

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	156
Female	140

**Ethnicity**
Non-Hispanic White	254
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	138
From 75 to 84	103
85 and over	40
Less than 65	15

Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	43
Depression	14
Chronic Kidney Disease	35
Asthma	6
Osteoperosis	5
Atrial Fibrilation	13
Heart Failure	20
Chronic Obstructive Pulmonary Disease	17
Diabetes	37
Dementia	13
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gary Joseph Barrett, MD treated as an internist in Loris, SC during 2021 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

doctor visit	1207
lab tests	50
preventive care	69
vaccines	69

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	155
Female	133

**Ethnicity**
Non-Hispanic White	255
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	110
85 and over	32
Less than 65	16

Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	42
Depression	14
Chronic Kidney Disease	34
Asthma	5
Osteoperosis	4
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	35
Dementia	12
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

doctor visit	973

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	151
Female	119

**Ethnicity**
Non-Hispanic White	235
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	114
From 75 to 84	105
85 and over	35
Less than 65	16

Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	34
Depression	13
Chronic Kidney Disease	22
Asthma	7
Osteoperosis	6
Atrial Fibrilation	17
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gary Joseph Barrett, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gary Joseph Barrett, MD treated as an internist in Loris, SC were lab tests, preventive care, vaccines and cardiac procedures.

ambulatory monitoring	13
cardiac procedures	13
doctor visit	1657
lab tests	204
preventive care	139
vaccines	107

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gary Joseph Barrett, MD.

**Gender**
Male	148
Female	146

**Ethnicity**
Black / African American	4
Asian / Pacific Islander	0
Non-Hispanic White	252
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	92
85 and over	38
Less than 65	24
65 to 74	139

Average of Total of Conditions of Medicare patients treated by Dr. Gary Joseph Barrett, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Gary Joseph Barrett, MD treated were high cholesterol, hypertension, ischemic heart disease and diabetes.

Hypertension	68
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	43
Depression	12
Chronic Kidney Disease	27
Asthma	12
Osteoporosis	4
Heart Failure	20
Chronic Obstructive Pulmonary Disease	23
Diabetes	35
Atrial Fibrillation	13
Dementia	10
Cancer	11

Education & Training

He has a state license in South Carolina.

Licensed In: South Carolina

Ratings & Reviews

Dr. Gary Joseph Barrett, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Gary Joseph Barrett, MD from all over the web to help you find the right in Loris, SC.

Overall Rating

(1 Rating)

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General Payments

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

**Payments by Company**
GlaxoSmithKline, LLC.	$295 ANORO $103	BREO $92	TRELEGY ELLIPTA $49	TANZEUM $26	ARNUITY $13	Other $12
AstraZeneca Pharmaceuticals LP	$258 SYMBICORT $102	FARXIGA $51	BYDUREON $28	CRESTOR $26	BEVESPI AEROSPHERE $24	Other $28
Novo Nordisk Inc	$225 Tresiba $62	Ozempic $60	Xultophy 100/3.6 $46	RYBELSUS $42	NovoLog $15
Pfizer Inc.	$184 ELIQUIS $49	EUCRISA $43	NURTEC ODT $21	PAXLOVID $16	COLOGUARD $15	Other $39
Janssen Pharmaceuticals, Inc	$175 XARELTO $138	INVOKANA $37
Other	$802 TOUJEO $133	Repatha $123	VRAYLAR $112	ENTRESTO $65	BASAGLAR $58	Other $311