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Dr. Karl Vance Sitz, MD

Accepting New Patients

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Specializes in: Adult Allergy & Immunology

University of Arkansas for Medical Sciences College of Medicine

18 Corporate Hill Drive Suite 110
Little Rock, AR 72205

(501) 224-1156

Dr. Karl Vance Sitz, MD is an allergist in Little Rock, AR specializing in adult allergy & immunology. He graduated from University of Arkansas for Medical Sciences College of Medicine.

Office Locations

18 Corporate Hill Drive Suite 110
Little Rock, AR 72205

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3900 S Hickory St Pine
Bluff, AR 71603

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Noteworthy Medicare Patient Procedures Performed by Dr. Karl Vance Sitz, MD in 2024

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

Top 5%

By Affordability:

allergen immunotherapy

immunotherapy

injections

subcutaneous allergen immunotherapy

In 2024, Dr. Karl Vance Sitz, MD had a list price for allergen immunotherapy, immunotherapy, injections, and subcutaneous allergen immunotherapy (allergy shots) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Arkansas. 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. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2012 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	4755
doctor visit	257
immunotherapy	537
injections	537
minimally invasive procedures	4755
preventive care	17
skin testing	4755
vaccines	17

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2013 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	5319
doctor visit	241
immunotherapy	572
injections	572
minimally invasive procedures	5319
preventive care	15
skin testing	5319
vaccines	15

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	77
Female	123

**Ethnicity**
Non-Hispanic White	162
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	42
85 and over	11
Less than 65	48

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2013

Hypertension	61
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	31
Depression	19
Chronic Kidney Disease	12
Asthma	20
Osteoperosis	9
Atrial Fibrilation	0
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	19
Dementia	0
Cancer	8

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2014 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	5643
doctor visit	254
immunotherapy	675
injections	675
minimally invasive procedures	5643
skin testing	5643

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	59
Female	145

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

**Age**
From 65 to 74	101
From 75 to 84	0
85 and over	0
Less than 65	49

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2014

Hypertension	65
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	31
Depression	17
Chronic Kidney Disease	10
Asthma	17
Osteoperosis	6
Atrial Fibrilation	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	24
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2015 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	3894
doctor visit	228
immunotherapy	724
injections	724
minimally invasive procedures	3894
preventive care	16
skin testing	3894
vaccines	16

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	170
Female	356

**Ethnicity**
Non-Hispanic White	412
Black	92
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	310
From 75 to 84	102
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2015

Hypertension	60
High Cholesterol	46
Stroke	5
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	11
Asthma	24
Osteoperosis	7
Atrial Fibrilation	6
Heart Failure	9
Chronic Obstructive Pulmonary Disease	11
Diabetes	26
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2016 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	4173
doctor visit	202
immunotherapy	1179
injections	1179
minimally invasive procedures	4173
preventive care	18
skin testing	4173
vaccines	18

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	123
Female	251

**Ethnicity**
Non-Hispanic White	294
Black	69
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	209
From 75 to 84	78
85 and over	18
Less than 65	69

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2016

Hypertension	63
High Cholesterol	42
Stroke	4
Ischemic Heart Disease	32
Depression	17
Chronic Kidney Disease	13
Asthma	25
Osteoperosis	6
Atrial Fibrilation	6
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	25
Dementia	4
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2017 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	5045
doctor visit	233
immunotherapy	1423
injections	1423
minimally invasive procedures	5045
preventive care	22
skin testing	5045
vaccines	22

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	122
Female	292

**Ethnicity**
Non-Hispanic White	319
Black	77
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	234
From 75 to 84	93
85 and over	14
Less than 65	73

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2017

Hypertension	65
High Cholesterol	44
Stroke	4
Ischemic Heart Disease	31
Depression	23
Chronic Kidney Disease	18
Asthma	19
Osteoperosis	8
Atrial Fibrilation	6
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	28
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2018 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	6524
doctor visit	270
immunotherapy	1702
injections	1702
minimally invasive procedures	6524
preventive care	17
skin testing	6524
vaccines	17

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	139
Female	322

**Ethnicity**
Non-Hispanic White	374
Black	75
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	276
From 75 to 84	104
85 and over	16
Less than 65	65

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2018

Hypertension	67
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	17
Asthma	18
Osteoperosis	8
Atrial Fibrilation	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2019 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	6573
doctor visit	295
immunotherapy	1861
injections	1861
minimally invasive procedures	6573
skin testing	6573

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	170
Female	328

**Ethnicity**
Non-Hispanic White	401
Black	84
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	297
From 75 to 84	124
85 and over	21
Less than 65	56

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2019

Hypertension	67
High Cholesterol	50
Stroke	5
Ischemic Heart Disease	36
Depression	22
Chronic Kidney Disease	17
Asthma	20
Osteoperosis	7
Atrial Fibrilation	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	12
Diabetes	28
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2020 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	4919
doctor visit	254
immunotherapy	1895
injections	1895
minimally invasive procedures	4919
skin testing	4919

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	143
Female	297

**Ethnicity**
Non-Hispanic White	349
Black	77
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	255
From 75 to 84	122
85 and over	14
Less than 65	49

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2020

Hypertension	65
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	34
Depression	20
Chronic Kidney Disease	22
Asthma	19
Osteoperosis	9
Atrial Fibrilation	8
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2021 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	4443
doctor visit	279
immunotherapy	1370
injections	1370
minimally invasive procedures	4443
skin testing	4443

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	129
Female	264

**Ethnicity**
Non-Hispanic White	318
Black	62
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	215
From 75 to 84	115
85 and over	16
Less than 65	47

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2021

Hypertension	64
High Cholesterol	54
Stroke	6
Ischemic Heart Disease	34
Depression	21
Chronic Kidney Disease	20
Asthma	22
Osteoperosis	9
Atrial Fibrilation	8
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2022 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	4083
doctor visit	303
immunotherapy	1123
injections	1123
minimally invasive procedures	4083
skin testing	4083

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	132
Female	246

**Ethnicity**
Non-Hispanic White	314
Black	50
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	202
From 75 to 84	119
85 and over	14
Less than 65	43

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2022

Hypertension	75
High Cholesterol	69
Stroke	9
Ischemic Heart Disease	24
Depression	18
Chronic Kidney Disease	11
Asthma	30
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	9
Chronic Obstructive Pulmonary Disease	16
Diabetes	25
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2023 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

allergy testing	3082
doctor visit	245
immunotherapy	930
injections	930
minimally invasive procedures	3082
skin testing	3082

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	107
Female	196

**Ethnicity**
Non-Hispanic White	243
Black	44
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	102
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2023

Hypertension	74
High Cholesterol	66
Stroke	8
Ischemic Heart Disease	25
Depression	21
Chronic Kidney Disease	9
Asthma	32
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	8
Chronic Obstructive Pulmonary Disease	15
Diabetes	24
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR during 2024 were immunotherapy and injections.

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

immunotherapy	35
injections	35

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Male	12
Female	21

**Age**
From 65 to 74	19
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2024

Hypertension	67
High Cholesterol	70
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	39
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Karl Vance Sitz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Karl Vance Sitz, MD treated as an allergist in Little Rock, AR were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

allergy testing	4871
doctor visit	255
immunotherapy	1078
injections	1078
minimally invasive procedures	4871
preventive care	17
skin testing	4871
vaccines	17

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Karl Vance Sitz, MD.

**Gender**
Female	218
Male	106

**Ethnicity**
Black / African American	48
Asian / Pacific Islander	0
Non-Hispanic White	256
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	9
75 to 84	77
Less than 65	38
65 to 74	182

Average of Total of Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD From 2012 - 2024

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

Hypertension	61
High Cholesterol	49
Stroke	3
Ischemic Heart Disease	26
Depression	16
Chronic Kidney Disease	12
Asthma	21
Osteoporosis	7
Heart Failure	8
Chronic Obstructive Pulmonary Disease	10
Diabetes	24
Atrial Fibrillation	6
Cancer	8
Dementia	3

Education & Training

Dr. Karl Vance Sitz, MD graduated from University of Arkansas for Medical Sciences College of Medicine. He completed residency at University of Arkansas for Medical Sciences Affiliated Hospitals. He has a state license in Arkansas.

Medical School: University of Arkansas for Medical Sciences College of Medicine

Residency: University of Arkansas for Medical Sciences Affiliated Hospitals

Licensed In: Arkansas

Ratings & Reviews

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General Payments

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

**Payments by Company**
CSL Behring	$10,620 Hizentra $514	Haegarda $134	Zemaira $24	Berinert 500U $17	Berinert $12	Other $9,918
Novartis Pharmaceuticals Corporation	$3,473 NON BRAND $997	QGE031 $666	QGE031C $634	XOLAIR $604	Pazeo $7	Other $566
BioCryst Pharmaceuticals, Inc.	$3,275 Orladeyo $15	$3,260
Pfizer Inc.	$2,108 EUCRISA $261	CUTAQUIG $27	CIBINQO $17	PANZYGA $11	$1,791
AstraZeneca Pharmaceuticals LP	$1,915 SYMBICORT $419	FASENRA $158	TEZSPIRE $46	BREZTRI $16	BEVESPI AEROSPHERE $14	Other $1,262
Other	$7,190 DUPIXENT $1,034	TRELEGY ELLIPTA $797	NUCALA $629	Auvi-Q $394	XOLAIR $334	Other $4,002

**Types of Payments**
Food and Beverage	$10,119
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$9,897
Travel and Lodging	$6,310
Honoraria	$2,100
Education	$155

Research Payments

Dr. Karl Vance Sitz, MD has received 397 research payments totaling $1,611,280.

Biography

Dr. Karl Sitz works as an adult allergy & immunology. He attended the University of Arkansas for Medical Sciences College of Medicine and then went on to complete his residency at a hospital affiliated with the University of Arkansas for Medical Sciences. He welcomes new patients at his office inLittle Rock, AR as reported by CommonSpirit Health.

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Dr. Karl Vance Sitz, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Karl Vance Sitz, MD in 2024

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. Karl Vance Sitz, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Karl Vance Sitz, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Research Payments

Biography

Other Providers in Little Rock, AR