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Dr. Clark W. Antonson, MD

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Specializes in: Adult Gastroenterology

University of Nebraska College of Medicine

4545 R Street Suite 100
Lincoln, NE 68503

(402) 465-4545

Dr. Clark W. Antonson, MD is a gastroenterologist in Lincoln, NE specializing in adult gastroenterology. He graduated from University of Nebraska College of Medicine. Dr. Clark W. Antonson, MD is affiliated with CHI Health, Bryan Health and CHI Health St. Elizabeth.

Office Locations

Bryan Health

4545 R Street Suite 100
Lincoln, NE 68503

(402) 465-4545

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Noteworthy Medicare Patient Procedures Performed by Dr. Clark W. Antonson, MD in 2023

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

Top 5%

By Volume:

colonoscopy

endoscopy

esophageal dilation

gastrointestinal endoscopy

preventive care

screening colonoscopy

In 2023, Dr. Clark W. Antonson, MD performed more colonoscopy, endoscopy, esophageal dilation, gastrointestinal (GI) endoscopy, preventive care, and screening colonoscopy procedures for Medicare patients than 95% of providers in related specialties within Nebraska.

Top 25%

By Volume:

colonoscopy with biopsy

colonoscopy with lesion removal

diagnostic EGD

EGD with dilation

inpatient hospital care

In 2012, Dr. Clark W. Antonson, MD performed more colonoscopy with biopsy, colonoscopy with lesion removal, diagnostic EGD, EGD with dilation, and inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of providers in related specialties within Nebraska.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2012 were gastrointestinal procedures, minimally invasive procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

anastomosis	12
catheterization	12
diagnostic procedures	377
doctor visit	230
esophageal dilation	72
gastrointestinal procedures	687
hospital care	399
hydrogen breath test	33
inpatient care	399
lab tests	33
methane breath test	33
minimally invasive procedures	687
preventive care	130
removal of lesion (e.g. growth)	377

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2013 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

biological response modifier (BRM) therapy	17
chemotherapy	17
diagnostic procedures	354
doctor visit	293
esophageal dilation	72
gastrointestinal procedures	636
hospital care	432
hydrogen breath test	69
inpatient care	432
methane breath test	69
minimally invasive procedures	653
preventive care	123
removal of lesion (e.g. growth)	354

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	339
Female	426

**Ethnicity**
Non-Hispanic White	733
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	316
From 75 to 84	247
85 and over	97
Less than 65	105

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2013

Hypertension	64
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	33
Depression	26
Chronic Kidney Disease	25
Asthma	8
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	21
Chronic Obstructive Pulmonary Disease	18
Diabetes	27
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2014 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

biological response modifier (BRM) therapy	22
chemotherapy	22
diagnostic procedures	410
doctor visit	306
esophageal dilation	77
gastrointestinal procedures	726
hospital care	372
hydrogen breath test	50
inpatient care	372
methane breath test	50
minimally invasive procedures	748
preventive care	150
removal of lesion (e.g. growth)	410

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	383
Female	480

**Ethnicity**
Non-Hispanic White	829
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	363
From 75 to 84	306
85 and over	96
Less than 65	98

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2014

Hypertension	62
High Cholesterol	50
Stroke	5
Ischemic Heart Disease	31
Depression	24
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	26
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2015 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

biological response modifier (BRM) therapy	27
chemotherapy	27
diagnostic procedures	428
doctor visit	279
esophageal dilation	112
gastrointestinal procedures	756
hospital care	349
hydrogen breath test	65
inpatient care	349
methane breath test	65
minimally invasive procedures	783
preventive care	147
removal of lesion (e.g. growth)	428

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	768
Female	958

**Ethnicity**
Non-Hispanic White	1636
Black	0
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	826
From 75 to 84	536
85 and over	182
Less than 65	182

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2015

Hypertension	65
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	31
Depression	25
Chronic Kidney Disease	29
Asthma	14
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2016 were minimally invasive procedures, gastrointestinal procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

biological response modifier (BRM) therapy	28
chemotherapy	28
diagnostic procedures	371
doctor visit	359
esophageal dilation	58
gastrointestinal procedures	731
hospital care	418
hydrogen breath test	74
injections	14
inpatient care	418
methane breath test	74
minimally invasive procedures	759
preventive care	171
removal of lesion (e.g. growth)	371
stent placement (stenting)	17

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	375
Female	484

**Ethnicity**
Non-Hispanic White	808
Black	12
Hispanic	15
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	393
From 75 to 84	269
85 and over	103
Less than 65	94

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2016

Hypertension	66
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	32
Depression	24
Chronic Kidney Disease	30
Asthma	21
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	18
Diabetes	28
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2017 were minimally invasive procedures, gastrointestinal procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

biological response modifier (BRM) therapy	26
chemotherapy	26
diagnostic procedures	383
doctor visit	281
esophageal dilation	96
gastrointestinal procedures	685
hospital care	321
hydrogen breath test	81
injections	17
inpatient care	321
methane breath test	81
minimally invasive procedures	711
preventive care	159
removal of lesion (e.g. growth)	383

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	359
Female	464

**Ethnicity**
Non-Hispanic White	774
Black	11
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	405
From 75 to 84	262
85 and over	72
Less than 65	84

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2017

Hypertension	66
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	30
Depression	26
Chronic Kidney Disease	31
Asthma	9
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	28
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2018 were minimally invasive procedures, gastrointestinal procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

anastomosis	11
biological response modifier (BRM) therapy	25
catheterization	11
chemotherapy	25
diagnostic procedures	354
doctor visit	305
esophageal dilation	69
gastrointestinal procedures	632
hospital care	307
hydrogen breath test	79
inpatient care	307
methane breath test	79
minimally invasive procedures	672
preventive care	155
removal of lesion (e.g. growth)	354

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	402
Female	421

**Ethnicity**
Non-Hispanic White	780
Black	0
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	426
From 75 to 84	262
85 and over	74
Less than 65	61

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2018

Hypertension	65
High Cholesterol	53
Stroke	3
Ischemic Heart Disease	33
Depression	23
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	11
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

biological response modifier (BRM) therapy	19
chemotherapy	19
diagnostic procedures	336
doctor visit	238
esophageal dilation	71
gastrointestinal procedures	558
hospital care	271
hydrogen breath test	79
inpatient care	271
methane breath test	79
minimally invasive procedures	597
preventive care	116
removal of lesion (e.g. growth)	336

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	336
Female	400

**Ethnicity**
Non-Hispanic White	700
Black	0
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	369
From 75 to 84	235
85 and over	68
Less than 65	64

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2019

Hypertension	69
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	32
Depression	26
Chronic Kidney Disease	38
Asthma	8
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	21
Chronic Obstructive Pulmonary Disease	19
Diabetes	30
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

biological response modifier (BRM) therapy	24
chemotherapy	24
diagnostic procedures	291
doctor visit	176
esophageal dilation	65
gastrointestinal procedures	490
hospital care	252
hydrogen breath test	43
inpatient care	252
methane breath test	43
minimally invasive procedures	531
preventive care	86
removal of lesion (e.g. growth)	291

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	280
Female	346

**Ethnicity**
Non-Hispanic White	597
Black	0
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	330
From 75 to 84	200
85 and over	57
Less than 65	39

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2020

Hypertension	66
High Cholesterol	58
Stroke	6
Ischemic Heart Disease	33
Depression	26
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	15
Diabetes	25
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

biological response modifier (BRM) therapy	32
chemotherapy	32
diagnostic procedures	315
doctor visit	183
esophageal dilation	67
gastrointestinal procedures	579
hospital care	217
hydrogen breath test	69
inpatient care	217
methane breath test	69
minimally invasive procedures	632
preventive care	149
removal of lesion (e.g. growth)	315

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	335
Female	360

**Ethnicity**
Non-Hispanic White	659
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	365
From 75 to 84	237
85 and over	51
Less than 65	42

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2021

Hypertension	67
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	36
Depression	23
Chronic Kidney Disease	38
Asthma	6
Osteoperosis	8
Atrial Fibrilation	16
Heart Failure	22
Chronic Obstructive Pulmonary Disease	16
Diabetes	29
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

biological response modifier (BRM) therapy	33
chemotherapy	33
diagnostic procedures	312
doctor visit	115
esophageal dilation	59
gastrointestinal procedures	559
hospital care	166
hydrogen breath test	29
inpatient care	166
methane breath test	29
minimally invasive procedures	613
preventive care	156
removal of lesion (e.g. growth)	312

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	326
Female	359

**Ethnicity**
Non-Hispanic White	638
Black	0
Hispanic	12
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	366
From 75 to 84	234
85 and over	47
Less than 65	38

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2022

Hypertension	72
High Cholesterol	70
Stroke	6
Ischemic Heart Disease	24
Depression	20
Chronic Kidney Disease	22
Asthma	11
Osteoperosis	13
Atrial Fibrilation	18
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	26
Dementia	5
Cancer	15

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE during 2023 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

balloon dilation	15
biological response modifier (BRM) therapy	20
chemotherapy	20
diagnostic procedures	364
doctor visit	46
esophageal dilation	71
gastrointestinal procedures	666
hospital care	200
inpatient care	200
minimally invasive procedures	711
preventive care	157
removal of lesion (e.g. growth)	364

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	333
Female	362

**Ethnicity**
Non-Hispanic White	653
Black	0
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	401
From 75 to 84	216
85 and over	46
Less than 65	32

Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	26
Depression	23
Chronic Kidney Disease	30
Asthma	11
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	20
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Dementia	5
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Clark W. Antonson, MD for Medicare patients.

The highest averages for the top procedures that Dr. Clark W. Antonson, MD treated as a gastroenterologist in Lincoln, NE were minimally invasive procedures, gastrointestinal procedures, diagnostic procedures and removal of lesion (e.g. growth).

anastomosis	11
balloon dilation	15
biological response modifier (BRM) therapy	24
catheterization	11
chemotherapy	24
diagnostic procedures	357
doctor visit	234
esophageal dilation	74
gastrointestinal procedures	642
hospital care	308
hydrogen breath test	61
injections	15
inpatient care	308
lab tests	33
methane breath test	61
minimally invasive procedures	674
preventive care	141
removal of lesion (e.g. growth)	357
stent placement (stenting)	17

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Clark W. Antonson, MD.

**Gender**
Male	353
Female	421

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	0
Non-Hispanic White	733
Hispanic	6
Native American / Alaskan Native	0
Other	9

**Age**
75 to 84	250
85 and over	74
Less than 65	69
65 to 74	380

Average of Total of Conditions of Medicare patients treated by Dr. Clark W. Antonson, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Clark W. Antonson, MD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	61
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	28
Depression	22
Chronic Kidney Disease	28
Asthma	9
Osteoporosis	8
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	25
Atrial Fibrillation	14
Cancer	12
Dementia	8

Education & Training

Dr. Clark W. Antonson, MD graduated from University of Nebraska College of Medicine. He completed residency at University of Nebraska Medical Center. He has a state license in Nebraska.

Medical School: University of Nebraska College of Medicine

Residency: University of Nebraska Medical Center

Licensed In: Nebraska

Affiliations & Hospitals

Dr. Clark W. Antonson, MD is associated with these hospitals and organizations:

CHI Health

Bryan Health

CHI Health St. Elizabeth

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General Payments

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

**Payments by Company**
Boston Scientific Corporation	$5,459 Biliary Devices $2,251	SPYGLASS DIRECT VISUALIZATION SYSTEM $787	EXALT Model D $747	POLYPECTOMY $489	General - Biliary Devices $386	Other $800
AIMMUNE THERAPEUTICS, INC.	$514 VOWST $514
Janssen Biotech, Inc.	$404 STELARA $204	SIMPONI $200
Janssen Scientific Affairs, LLC	$347 REMICADE $184	STELARA $162
AbbVie Inc.	$289 Creon $99	Humira $60	Rinvoq $45	Skyrizi $35	LINZESS $34	Other $15
Other	$2,552 ENTYVIO $281	GI Solutions $234	NON-PRODUCT $150	ZENPEP $148	DUPIXENT $132	Other $1,606

**Types of Payments**
Food and Beverage	$5,682
Travel and Lodging	$3,712
Consulting Fee	$150
Education	$20

Biography

Dr. Clark Antonson sees patients in Lincoln, NE and Suite 100 Lincoln, NE. His medical specialty is adult gastroenterology. Dr. Antonson's hospital/clinic affiliations include CHI Health and Bryan Health. He attended the University of Nebraska College of Medicine for medical school and subsequently trained at the University of Nebraska Medical Center for residency.