In 2023, among providers in related specialties within Wisconsin, Dr. John Thomas McMahan, MD performed more diagnostic flexible laryngoscopy, endoscopy, impacted ear wax removal, laryngoscopy, and maxillofacial (jaw/face) CT scan procedures for Medicare patients than 95% of them and he also had a list price for CT scan, diagnostic flexible laryngoscopy, diagnostic laryngoscopy, ear wax removal, fiberoptic laryngoscopy, flexible laryngoscopy, impacted ear wax removal, laryngeal (voice box) procedures, laryngoscopy, and maxillofacial (jaw/face) CT scan that was lower than the list prices billed to Medicare by 95% of them. 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. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2012 were CT scan, minimally invasive procedures, removal of lesion (e.g. growth) and debridement (removal of unhealthy tissue).

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

blood draw	16
CT scan	188
debridement (removal of unhealthy tissue)	90
diagnostic procedures	90
doctor visit	356
excision	90
gynecologic procedures	90
laryngeal (voice box) procedures	88
minimally invasive procedures	178
nose surgery	90
removal of lesion (e.g. growth)	90
thoracic (chest) imaging	12

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2013 were CT scan, blood draw, thoracic (chest) imaging and minimally invasive procedures.

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

abdominal imaging	47
blood draw	113
CT scan	374
doctor visit	190
laryngeal (voice box) procedures	84
minimally invasive procedures	84
neck imaging	16
pelvic imaging	47
preventive care	20
thoracic (chest) imaging	98
vaccines	20

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	146
Female	165

**Ethnicity**
Non-Hispanic White	246
Black	40
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	175
From 75 to 84	87
85 and over	30
Less than 65	19

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2013

Hypertension	48
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	22
Depression	15
Chronic Kidney Disease	14
Asthma	8
Osteoperosis	7
Atrial Fibrilation	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	7
Cancer	23

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2014 were lab tests, allergy testing, CT scan and blood draw.

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

abdominal imaging	12
allergy testing	160
blood draw	49
CT scan	154
doctor visit	160
lab tests	160
pelvic imaging	12
thoracic (chest) imaging	14

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	90
Female	107

**Ethnicity**
Non-Hispanic White	166
Black	17
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	114
From 75 to 84	56
85 and over	13
Less than 65	14

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2014

Hypertension	51
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	24
Depression	21
Chronic Kidney Disease	14
Asthma	10
Osteoperosis	13
Atrial Fibrilation	8
Heart Failure	7
Chronic Obstructive Pulmonary Disease	12
Diabetes	17
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2015 were CT scan and blood draw.

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

blood draw	79
CT scan	154
doctor visit	175

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	146
Female	204

**Ethnicity**
Non-Hispanic White	286
Black	38
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	198
From 75 to 84	96
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2015

Hypertension	50
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	23
Depression	16
Chronic Kidney Disease	9
Asthma	12
Osteoperosis	7
Atrial Fibrilation	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	20
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2016 were ear procedures, CT scan, immunotherapy and injections.

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

blood draw	86
CT scan	142
diagnostic procedures	99
doctor visit	158
ear procedures	152
immunotherapy	119
injections	119

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	98
Female	137

**Ethnicity**
Non-Hispanic White	181
Black	29
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	79
85 and over	25
Less than 65	11

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2016

Hypertension	45
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	22
Depression	15
Chronic Kidney Disease	11
Asthma	12
Osteoperosis	8
Atrial Fibrilation	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	19
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2017 were ear procedures, CT scan, blood draw and diagnostic procedures.

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

blood draw	54
CT scan	126
diagnostic procedures	15
doctor visit	227
ear procedures	156

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	114
Female	151

**Ethnicity**
Non-Hispanic White	198
Black	32
Hispanic	0
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	134
From 75 to 84	91
85 and over	29
Less than 65	11

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2017

Hypertension	42
High Cholesterol	23
Stroke	4
Ischemic Heart Disease	22
Depression	14
Chronic Kidney Disease	11
Asthma	5
Osteoperosis	12
Atrial Fibrilation	7
Heart Failure	6
Chronic Obstructive Pulmonary Disease	5
Diabetes	17
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2018 were ear procedures, CT scan and blood draw.

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

blood draw	58
CT scan	121
doctor visit	332
ear procedures	199

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	118
Female	150

**Ethnicity**
Non-Hispanic White	218
Black	30
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	133
From 75 to 84	94
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2018

Hypertension	44
High Cholesterol	43
Stroke	4
Ischemic Heart Disease	22
Depression	15
Chronic Kidney Disease	14
Asthma	6
Osteoperosis	13
Atrial Fibrilation	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	15
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2019 were ear procedures, CT scan and blood draw.

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

blood draw	14
CT scan	27
doctor visit	169
ear procedures	133

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	78
Female	107

**Ethnicity**
Non-Hispanic White	151
Black	17
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	72
85 and over	16
Less than 65	11

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2019

Hypertension	45
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	26
Depression	18
Chronic Kidney Disease	16
Asthma	6
Osteoperosis	12
Atrial Fibrilation	6
Heart Failure	10
Chronic Obstructive Pulmonary Disease	6
Diabetes	18
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2020 were minimally invasive procedures, laryngeal (voice box) procedures, CT scan and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

CT scan	34
debridement (removal of unhealthy tissue)	28
diagnostic procedures	28
doctor visit	162
excision	28
gynecologic procedures	28
laryngeal (voice box) procedures	80
minimally invasive procedures	108
nose surgery	28
removal of lesion (e.g. growth)	28

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	48
Female	54

**Ethnicity**
Non-Hispanic White	89
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	46
From 75 to 84	35
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2020

Hypertension	63
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	27
Depression	19
Chronic Kidney Disease	28
Asthma	13
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	13
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2021 were minimally invasive procedures, laryngeal (voice box) procedures and ear procedures.

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

doctor visit	164
ear procedures	23
laryngeal (voice box) procedures	71
minimally invasive procedures	71

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	331
Female	549

**Ethnicity**
Non-Hispanic White	638
Black	122
Hispanic	80
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	322
From 75 to 84	332
85 and over	88
Less than 65	138

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	50
Depression	32
Chronic Kidney Disease	40
Asthma	11
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	30
Chronic Obstructive Pulmonary Disease	21
Diabetes	42
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2022 were CT scan, ear procedures, minimally invasive procedures and laryngeal (voice box) procedures.

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

CT scan	47
doctor visit	202
ear procedures	33
laryngeal (voice box) procedures	25
minimally invasive procedures	25

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	64
Female	79

**Ethnicity**
Non-Hispanic White	130
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	37
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2022

Hypertension	65
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	30
Depression	14
Chronic Kidney Disease	13
Asthma	9
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	15
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI during 2023 were ear procedures, CT scan, minimally invasive procedures and laryngeal (voice box) procedures.

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

CT scan	137
doctor visit	642
ear procedures	142
laryngeal (voice box) procedures	76
minimally invasive procedures	76

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	198
Female	263

**Ethnicity**
Non-Hispanic White	432
Black	0
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	212
From 75 to 84	166
85 and over	71
Less than 65	12

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2023

Hypertension	68
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	30
Depression	16
Chronic Kidney Disease	18
Asthma	11
Osteoperosis	20
Atrial Fibrilation	17
Heart Failure	10
Chronic Obstructive Pulmonary Disease	14
Diabetes	20
Dementia	5
Cancer	22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. John Thomas McMahan, MD for Medicare patients.

The highest averages for the top procedures that Dr. John Thomas McMahan, MD treated as an otolaryngic allergist in Appleton, WI were allergy testing, lab tests, CT scan and immunotherapy.

abdominal imaging	29
allergy testing	160
blood draw	58
CT scan	136
debridement (removal of unhealthy tissue)	59
diagnostic procedures	58
doctor visit	244
ear procedures	119
excision	59
gynecologic procedures	59
immunotherapy	119
injections	119
lab tests	160
laryngeal (voice box) procedures	70
minimally invasive procedures	90
neck imaging	16
nose surgery	59
pelvic imaging	29
preventive care	20
removal of lesion (e.g. growth)	59
thoracic (chest) imaging	41
vaccines	20

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. John Thomas McMahan, MD.

**Gender**
Male	119
Female	163

**Ethnicity**
Black / African American	27
Asian / Pacific Islander	1
Non-Hispanic White	227
Hispanic	6
Native American / Alaskan Native	0
Other	2

**Age**
75 to 84	95
85 and over	22
Less than 65	18
65 to 74	135

Average of Total of Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD From 2012 - 2023

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

Hypertension	49
High Cholesterol	46
Stroke	2
Ischemic Heart Disease	24
Depression	16
Chronic Kidney Disease	15
Asthma	8
Osteoporosis	9
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	18
Atrial Fibrillation	8
Cancer	12
Dementia	2

Education & Training

He has a state license in Illinois.

Licensed In: Illinois

Ratings & Reviews

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General Payments

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

**Payments by Company**
Meda Pharmaceuticals, Inc.	$8,684 Aerospan $8,208	Dymista $475
Allergan Inc.	$5,983 BOTOX COSMETIC $5,983
Teva Pharmaceuticals USA, Inc.	$2,652 QNASL $2,547	QVAR $105
Lupin Pharmaceuticals, Inc	$1,593 AeroMaskLarge $1,236	Suprax $247	Methergine $110
Mylan Specialty L.P.	$365 EpiPen $259	Dymista $87	Perforomist $20
Other	$2,021 Propel $309	Auvi-Q $193	SYMBICORT $154	ENTELLUS - XPRESS ENT DILATION SYSTEM $140	NASONEX $125	Other $1,101

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$6,920
Gift	$5,983
Food and Beverage	$5,327
Honoraria	$1,850
Travel and Lodging	$1,218

Biography

Dr. John McMahan works as an otolaryngic allergy specialist in Appleton, WI. Dr. McMahan obtained a license to practice in Illinois.

Select Year:

Dr. John Thomas McMahan, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. John Thomas McMahan, MD in 2023

By Volume:

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. John Thomas McMahan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. John Thomas McMahan, MD From 2012 - 2023

Education & Training

Ratings & Reviews

General Payments

Biography

Other Providers in Appleton, WI