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Dr. Gary D. Roark, MD

(No ratings)

Specializes in: Gastroenterology (Digestive System)

University of Texas Medical Branch School of Medicine

1249 Ambler
Abilene, TX 79601

(325) 677-2626

Dr. Gary D. Roark, MD is a gastroenterologist in Abilene, TX specializing in gastroenterology (digestive system). He graduated from University of Texas Medical Branch School of Medicine. Dr. Gary D. Roark, MD is affiliated with Hendrick Health, Hendrick Medical Center South and GASTROENTEROLOGY ASSOC, LLP.

Office Locations

Hendrick Medical Center South

1249 Ambler
Abilene, TX 79601

(325) 677-2626

(325) 677-6835

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Noteworthy Medicare Patient Procedures Performed by Dr. Gary D. Roark, MD in 2023

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

Top 5%

By Volume:

esophageal dilation without endoscopic guidance

preventive care

screening colonoscopy

In 2023, Dr. Gary D. Roark, MD performed more esophageal dilation without endoscopic guidance, preventive care, and screening colonoscopy procedures for Medicare patients than 95% of providers in related specialties within Texas.

Top 25%

By Volume:

colonoscopy

EGD with biopsy

EGD with lesion removal

endoscopy

gastrointestinal biopsy

gastrointestinal procedures

removal of lesion

In 2012, Dr. Gary D. Roark, MD performed more colonoscopy, EGD with biopsy, EGD with lesion removal, endoscopy, gastrointestinal biopsy, gastrointestinal procedures, and removal of lesion (e.g. growth) procedures for Medicare patients than 75% of providers in related specialties within Texas.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2012 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

diagnostic procedures	357
doctor visit	257
esophageal dilation	91
gastrointestinal procedures	595
hospital care	359
inpatient care	359
lab tests	17
minimally invasive procedures	595
preventive care	205
removal of lesion (e.g. growth)	357

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2013 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

anastomosis	11
catheterization	11
diagnostic procedures	302
doctor visit	228
esophageal dilation	89
gastrointestinal procedures	536
hospital care	346
inpatient care	346
lab tests	18
minimally invasive procedures	536
preventive care	187
removal of lesion (e.g. growth)	302

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	270
Female	344

**Ethnicity**
Non-Hispanic White	524
Black	0
Hispanic	55
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	264
From 75 to 84	212
85 and over	61
Less than 65	77

Conditions of Medicare patients treated by Dr. Gary D. Roark, MD in 2013

Hypertension	73
High Cholesterol	49
Stroke	5
Ischemic Heart Disease	46
Depression	25
Chronic Kidney Disease	26
Asthma	7
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	23
Chronic Obstructive Pulmonary Disease	21
Diabetes	31
Dementia	11
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2014 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

anastomosis	14
catheterization	14
diagnostic procedures	311
doctor visit	215
esophageal dilation	59
gastrointestinal procedures	554
hospital care	356
inpatient care	356
minimally invasive procedures	554
preventive care	156
removal of lesion (e.g. growth)	311

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	292
Female	332

**Ethnicity**
Non-Hispanic White	525
Black	0
Hispanic	58
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	295
From 75 to 84	192
85 and over	56
Less than 65	81

Conditions of Medicare patients treated by Dr. Gary D. Roark, MD in 2014

Hypertension	75
High Cholesterol	55
Stroke	6
Ischemic Heart Disease	46
Depression	25
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	29
Chronic Obstructive Pulmonary Disease	24
Diabetes	35
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2015 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

diagnostic procedures	337
doctor visit	214
esophageal dilation	86
gastrointestinal procedures	557
hospital care	148
inpatient care	148
minimally invasive procedures	557
preventive care	181
removal of lesion (e.g. growth)	337

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	556
Female	668

**Ethnicity**
Non-Hispanic White	1050
Black	0
Hispanic	102
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	612
From 75 to 84	372
85 and over	96
Less than 65	144

Conditions of Medicare patients treated by Dr. Gary D. Roark, MD in 2015

Hypertension	73
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	41
Depression	23
Chronic Kidney Disease	21
Asthma	12
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	24
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2016 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

diagnostic procedures	447
doctor visit	359
esophageal dilation	112
gastrointestinal procedures	719
hospital care	67
inpatient care	67
minimally invasive procedures	719
preventive care	250
removal of lesion (e.g. growth)	447

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	332
Female	470

**Ethnicity**
Non-Hispanic White	695
Black	0
Hispanic	66
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	412
From 75 to 84	259
85 and over	58
Less than 65	73

Conditions of Medicare patients treated by Dr. Gary D. Roark, MD in 2016

Hypertension	75
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	41
Depression	21
Chronic Kidney Disease	25
Asthma	20
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	19
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2017 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

diagnostic procedures	507
doctor visit	330
esophageal dilation	114
gastrointestinal procedures	710
hospital care	15
inpatient care	15
minimally invasive procedures	710
preventive care	170
removal of lesion (e.g. growth)	507

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	304
Female	409

**Ethnicity**
Non-Hispanic White	629
Black	21
Hispanic	52
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	362
From 75 to 84	229
85 and over	51
Less than 65	71

Conditions of Medicare patients treated by Dr. Gary D. Roark, MD in 2017

Hypertension	73
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	43
Depression	26
Chronic Kidney Disease	26
Asthma	7
Osteoperosis	12
Atrial Fibrilation	8
Heart Failure	20
Chronic Obstructive Pulmonary Disease	20
Diabetes	29
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

diagnostic procedures	478
doctor visit	305
esophageal dilation	109
gastrointestinal procedures	678
minimally invasive procedures	678
preventive care	175
removal of lesion (e.g. growth)	478

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	282
Female	364

**Ethnicity**
Non-Hispanic White	563
Black	0
Hispanic	49
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	336
From 75 to 84	211
85 and over	46
Less than 65	53

Conditions of Medicare patients treated by Dr. Gary D. Roark, MD in 2018

Hypertension	70
High Cholesterol	55
Stroke	3
Ischemic Heart Disease	39
Depression	23
Chronic Kidney Disease	24
Asthma	7
Osteoperosis	9
Atrial Fibrilation	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	27
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

diagnostic procedures	436
doctor visit	298
esophageal dilation	122
gastrointestinal procedures	618
minimally invasive procedures	618
preventive care	164
removal of lesion (e.g. growth)	436

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	280
Female	352

**Ethnicity**
Non-Hispanic White	545
Black	22
Hispanic	52
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	346
From 75 to 84	199
85 and over	43
Less than 65	44

Conditions of Medicare patients treated by Dr. Gary D. Roark, MD in 2019

Hypertension	71
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	41
Depression	23
Chronic Kidney Disease	24
Asthma	5
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	15
Diabetes	28
Dementia	8
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

diagnostic procedures	345
doctor visit	311
esophageal dilation	68
gastrointestinal procedures	511
minimally invasive procedures	511
preventive care	152
removal of lesion (e.g. growth)	345

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	241
Female	281

**Ethnicity**
Non-Hispanic White	458
Black	0
Hispanic	47
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	283
From 75 to 84	162
85 and over	38
Less than 65	39

Conditions of Medicare patients treated by Dr. Gary D. Roark, MD in 2020

Hypertension	73
High Cholesterol	55
Stroke	3
Ischemic Heart Disease	40
Depression	23
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

diagnostic procedures	322
doctor visit	356
esophageal dilation	79
gastrointestinal procedures	487
minimally invasive procedures	487
preventive care	151
removal of lesion (e.g. growth)	322

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	252
Female	283

**Ethnicity**
Non-Hispanic White	471
Black	12
Hispanic	41
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	321
From 75 to 84	159
85 and over	27
Less than 65	28

Conditions of Medicare patients treated by Dr. Gary D. Roark, MD in 2021

Hypertension	73
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	39
Depression	17
Chronic Kidney Disease	25
Asthma	4
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

diagnostic procedures	373
doctor visit	339
esophageal dilation	72
gastrointestinal procedures	565
minimally invasive procedures	565
preventive care	178
removal of lesion (e.g. growth)	373

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	279
Female	309

**Ethnicity**
Non-Hispanic White	518
Black	0
Hispanic	47
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	340
From 75 to 84	180
85 and over	37
Less than 65	31

Conditions of Medicare patients treated by Dr. Gary D. Roark, MD in 2022

Hypertension	75
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	30
Depression	18
Chronic Kidney Disease	15
Asthma	6
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	31
Dementia	4
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gary D. Roark, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gary D. Roark, MD treated as a gastroenterologist in Abilene, TX were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

anastomosis	12
catheterization	12
diagnostic procedures	383
doctor visit	292
esophageal dilation	91
gastrointestinal procedures	593
hospital care	215
inpatient care	215
lab tests	17
minimally invasive procedures	593
preventive care	179
removal of lesion (e.g. growth)	383

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gary D. Roark, MD.

**Gender**
Male	280
Female	346

**Ethnicity**
Black / African American	5
Asian / Pacific Islander	0
Non-Hispanic White	543
Hispanic	51
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	197
85 and over	46
Less than 65	58
65 to 74	324

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

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

Hypertension	66
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	36
Depression	20
Chronic Kidney Disease	22
Asthma	7
Osteoporosis	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	27
Atrial Fibrillation	9
Cancer	11
Dementia	8

Education & Training

Dr. Gary D. Roark, MD graduated from University of Texas Medical Branch School of Medicine. He completed residency at Univ. of Texas Medical Branch, Galveston, TX. He is certified by the American Board of Internal Medicine and has a state license in Texas.

Medical School: University of Texas Medical Branch School of Medicine

Residency: Univ. of Texas Medical Branch, Galveston, TX (1978)

Board Certification: American Board of Internal Medicine

Licensed In: Texas

Affiliations & Hospitals

Dr. Gary D. Roark, MD is associated with these hospitals and organizations:

Hendrick Health

Hendrick Medical Center South

GASTROENTEROLOGY ASSOC, LLP

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General Payments

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

**Payments by Company**
AbbVie Inc.	$800 Creon $231	LINZESS $156	Rinvoq $145	Humira $143	Mavyret $102	Other $22
AbbVie, Inc.	$722 Humira $526	Creon $102	Viekira $60	$33
Takeda Pharmaceuticals U.S.A., Inc.	$560 ENTYVIO $277	Dexilant $94	AMITIZA $25	GATTEX $20	MOTEGRITY $15	Other $129
Janssen Biotech, Inc.	$388 STELARA $161	SIMPONI $159	OLYSIO $48	SIMPONI ARIA $19
Pfizer Inc.	$375 INFLECTRA $190	XELJANZ $129	VELSIPITY $43	$14
Other	$2,935 LINZESS $330	DUPIXENT $210	DIFICID $198	PREPOPIK $147	SUPREP $128	Other $1,922

**Types of Payments**
Food and Beverage	$5,757
Education	$17
Gift	$6

Biography

Dr. Gary Roark is a gastroenterology (digestive system) specialist. He attended medical school at the University of Texas Medical Branch School of Medicine. Dr. Roark is professionally affiliated with Hendrick Health.