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Dr. David Carter Redfern, MD

Accepting New Patients

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Specializes in: Allergy & Immunology

University of Missouri-Columbia School of Medicine

1753 West Ridgeway Avenue Suite 106
Waterloo, IA 50701

(319) 833-5982

Dr. David Carter Redfern, MD is an allergist and immunologist in Waterloo, IA specializing in allergy & immunology. He graduated from University of Missouri-Columbia School of Medicine. Dr. David Carter Redfern, MD is affiliated with UnityPoint Health and Allen Memorial Hospital.

Office Locations

Allen Memorial Hospital

1753 West Ridgeway Avenue Suite 106
Waterloo, IA 50701

(319) 833-5982

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. David Carter Redfern, MD treated as an allergist and immunologist in Waterloo, IA during 2012 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Carter Redfern, MD for Medicare patients.

allergy testing	1999
doctor visit	282
immunotherapy	1087
injections	1087
minimally invasive procedures	1839
skin testing	1999

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. David Carter Redfern, MD treated as an allergist and immunologist in Waterloo, IA during 2013 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Carter Redfern, MD for Medicare patients.

allergy testing	2362
doctor visit	283
immunotherapy	1026
injections	1026
minimally invasive procedures	1732
skin testing	2362

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. David Carter Redfern, MD.

**Gender**
Male	84
Female	158

**Ethnicity**
Non-Hispanic White	229
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	144
From 75 to 84	54
85 and over	15
Less than 65	29

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2013

Hypertension	52
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	25
Depression	23
Chronic Kidney Disease	9
Asthma	17
Osteoperosis	7
Atrial Fibrilation	5
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	19
Dementia	5
Cancer	7

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. David Carter Redfern, MD treated as an allergist and immunologist in Waterloo, IA during 2014 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Carter Redfern, MD for Medicare patients.

allergy testing	2738
doctor visit	267
immunotherapy	970
injections	970
minimally invasive procedures	2050
skin testing	2738

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. David Carter Redfern, MD.

**Gender**
Male	87
Female	155

**Age**
From 65 to 74	146
From 75 to 84	56
85 and over	11
Less than 65	29

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2014

Hypertension	55
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	25
Depression	19
Chronic Kidney Disease	9
Asthma	20
Osteoperosis	8
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	12
Diabetes	23
Dementia	6
Cancer	6

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. David Carter Redfern, MD treated as an allergist and immunologist in Waterloo, IA during 2015 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Carter Redfern, MD for Medicare patients.

allergy testing	3078
doctor visit	287
immunotherapy	965
injections	965
minimally invasive procedures	2861
skin testing	3078

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. David Carter Redfern, MD.

**Gender**
Male	192
Female	328

**Ethnicity**
Non-Hispanic White	484
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	342
From 75 to 84	106
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2015

Hypertension	53
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	21
Depression	25
Chronic Kidney Disease	11
Asthma	20
Osteoperosis	7
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	13
Diabetes	22
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. David Carter Redfern, MD treated as an allergist and immunologist in Waterloo, IA during 2016 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Carter Redfern, MD for Medicare patients.

allergy testing	2234
doctor visit	199
immunotherapy	556
injections	556
minimally invasive procedures	2026
skin testing	2234

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. David Carter Redfern, MD.

**Gender**
Male	49
Female	117

**Ethnicity**
Non-Hispanic White	153
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	0
85 and over	0
Less than 65	27

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2016

Hypertension	52
High Cholesterol	41
Stroke	0
Ischemic Heart Disease	19
Depression	20
Chronic Kidney Disease	14
Asthma	27
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	9
Chronic Obstructive Pulmonary Disease	13
Diabetes	19
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. David Carter Redfern, MD treated as an allergist and immunologist in Waterloo, IA during 2017 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Carter Redfern, MD for Medicare patients.

allergy testing	2175
doctor visit	181
immunotherapy	577
injections	577
minimally invasive procedures	2003
skin testing	2175

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. David Carter Redfern, MD.

**Gender**
Male	42
Female	119

**Age**
From 65 to 74	105
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2017

Hypertension	51
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	25
Depression	24
Chronic Kidney Disease	12
Asthma	16
Osteoperosis	13
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	9
Diabetes	17
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. David Carter Redfern, MD treated as an allergist and immunologist in Waterloo, IA during 2018 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. David Carter Redfern, MD for Medicare patients.

allergy testing	2296
doctor visit	151
immunotherapy	433
injections	433
minimally invasive procedures	2154
skin testing	2296

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. David Carter Redfern, MD.

**Gender**
Male	39
Female	119

**Age**
From 65 to 74	105
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2018

Hypertension	54
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	27
Depression	30
Chronic Kidney Disease	15
Asthma	16
Osteoperosis	8
Atrial Fibrilation	0
Heart Failure	8
Chronic Obstructive Pulmonary Disease	0
Diabetes	22
Dementia	0
Cancer	8

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2018

Volume of procedures performed by Dr. David Carter Redfern, MD for Medicare patients.

The highest averages for the top procedures that Dr. David Carter Redfern, MD treated as an allergist and immunologist in Waterloo, IA were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

allergy testing	2411
doctor visit	235
immunotherapy	802
injections	802
minimally invasive procedures	2095
skin testing	2411

Average Medicare Patient Data From 2012 - 2018

Information about Medicare patients treated by Dr. David Carter Redfern, MD.

**Gender**
Male	70
Female	142

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	123
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	39
85 and over	3
Less than 65	12
65 to 74	136

Average of Total of Conditions of Medicare patients treated by Dr. David Carter Redfern, MD From 2012 - 2018

The highest averages of the most common conditions of Medicare patients that Dr. David Carter Redfern, MD treated were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	45
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	20
Depression	20
Chronic Kidney Disease	10
Asthma	16
Osteoporosis	7
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	17
Atrial Fibrillation	5
Cancer	4
Dementia	1

Education & Training

Dr. David Carter Redfern, MD graduated from University of Missouri-Columbia School of Medicine. He completed residency at Robert Packer Hospital. He is certified by the American Board of Allergy and Immunology and has a state license in Iowa.

Medical School: University of Missouri-Columbia School of Medicine

Residency: Robert Packer Hospital

Board Certification: American Board of Allergy and Immunology

Licensed In: Iowa

Affiliations & Hospitals

Dr. David Carter Redfern, MD is associated with these hospitals and organizations:

UnityPoint Health

Allen Memorial Hospital

Ratings & Reviews

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$1,184 SYMBICORT $775	BEVESPI AEROSPHERE $262	FASENRA $42	$105
GlaxoSmithKline, LLC.	$866 NUCALA $415	BREO $374	ARNUITY $35	ANORO $23	$19
Boehringer Ingelheim Pharmaceuticals, Inc.	$197 STIOLTO $71	SPIRIVA RESPIMAT $59	Spiriva $27	Pradaxa $26	STRIVERDI RESPIMAT $14
Mylan Specialty L.P.	$186 EpiPen $175	Dymista $11
Novartis Pharmaceuticals Corporation	$138 XOLAIR $118	Pazeo $20
Other	$729 Auvi-Q $126	DUPIXENT DUPILUMAB INJECTION $89	XOLAIR $79	Aerospan $65	EUCRISA $62	Other $309

**Types of Payments**
Food and Beverage	$3,237
Education	$64

Biography

Dr. David Redfern's area of specialization is allergy & immunology. Dr. Redfern attended medical school at the University of Missouri-Columbia School of Medicine. He trained at Robert Packer Hospital for his residency. He is professionally affiliated with UnityPoint Health. According to UnityPoint Health, new patients are welcome to contact his office in Waterloo, IA.

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Dr. David Carter Redfern, MD

Office Locations

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. David Carter Redfern, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Carter Redfern, MD in 2018

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2018

Average Medicare Patient Data From 2012 - 2018

Average of Total of Conditions of Medicare patients treated by Dr. David Carter Redfern, MD From 2012 - 2018

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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