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Home > WI Providers > Cardiac Electrophysiologists

Megan M. Johnson, APNP, NP

(50 Ratings)

Specializes in: Cardiac Electrophysiology (Heart Rhythm)

1000 North Oak Avenue
Marshfield, WI 54449

(715) 387-5511

Megan M. Johnson, APNP, NP is a nurse in Marshfield, WI specializing in cardiac electrophysiology (heart rhythm). Megan M. Johnson, APNP, NP is affiliated with Aspirus Health and ASPIRUS MEDICAL GROUP INC.

Office Locations

1000 North Oak Avenue
Marshfield, WI 54449

(715) 387-5511

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410 Dewey Street
Wisconsin Rapids, WI 54494

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Aspirus Health

500 Wind Ridge Drive
Wausau, WI 54401

(715) 847-2611

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824 Illinois Avenue
Stevens Point, WI 54481

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In The News

“"With careful preparation and awareness, you can enjoy the season safely and healthily," Megan Johnson of Aspirus Cardiology in Wausau, Wisconsin, said in a statement.”—"Our View: Show some heart this Thanksgiving, holiday season", Duluth News Tribune, November 2025

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Megan M. Johnson, APNP, NP treated as a nurse in Marshfield, WI during 2013 were hospital care and inpatient care.

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

hospital care	17
inpatient care	17

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2013

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2013 were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	75
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	48
Depression	48
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

doctor visit	29

2014 Medicare Patient Data

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	30
Female	23

**Age**
From 65 to 74	18
From 75 to 84	18
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2014

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2014 were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	64
Depression	23
Chronic Kidney Disease	51
Asthma	0
Osteoperosis	0
Atrial Fibrilation	43
Heart Failure	57
Chronic Obstructive Pulmonary Disease	28
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Megan M. Johnson, APNP, NP treated as a nurse in Marshfield, WI during 2015 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

blood draw	80
cardiac procedures	15
doctor visit	481
hospital care	18
inpatient care	18
lab tests	118
stress testing	15

2015 Medicare Patient Data

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	392
Female	316

**Ethnicity**
Non-Hispanic White	682
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	270
From 75 to 84	256
85 and over	106
Less than 65	76

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2015

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2015 were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	75
Depression	24
Chronic Kidney Disease	47
Asthma	19
Osteoperosis	10
Atrial Fibrilation	42
Heart Failure	56
Chronic Obstructive Pulmonary Disease	25
Diabetes	34
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Megan M. Johnson, APNP, NP treated as a nurse in Marshfield, WI during 2016 were stress testing, cardiac procedures, lab tests and blood draw.

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

blood draw	15
cardiac procedures	18
cardioversion	11
doctor visit	426
hospital care	14
inpatient care	14
lab tests	15
stress testing	18

2016 Medicare Patient Data

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	193
Female	167

**Ethnicity**
Non-Hispanic White	346
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	140
From 75 to 84	127
85 and over	52
Less than 65	41

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2016

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2016 were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	75
Depression	26
Chronic Kidney Disease	52
Asthma	29
Osteoperosis	7
Atrial Fibrilation	42
Heart Failure	59
Chronic Obstructive Pulmonary Disease	24
Diabetes	40
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Megan M. Johnson, APNP, NP treated as a nurse in Marshfield, WI during 2017 were lab tests, blood draw, stress testing and cardiac procedures.

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

blood draw	48
cardiac procedures	14
doctor visit	471
hospital care	12
inpatient care	12
lab tests	55
preventive care	11
stress testing	14

2017 Medicare Patient Data

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	228
Female	185

**Ethnicity**
Non-Hispanic White	392
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	160
From 75 to 84	154
85 and over	51
Less than 65	48

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2017

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2017 were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	75
Depression	23
Chronic Kidney Disease	47
Asthma	10
Osteoperosis	7
Atrial Fibrilation	48
Heart Failure	61
Chronic Obstructive Pulmonary Disease	25
Diabetes	36
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Megan M. Johnson, APNP, NP treated as a nurse in Marshfield, WI during 2018 were blood draw, lab tests, cardioversion and stress testing.

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

blood draw	21
cardiac procedures	14
cardioversion	18
doctor visit	508
hospital care	14
inpatient care	14
lab tests	19
stress testing	14

2018 Medicare Patient Data

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	185
Female	153

**Ethnicity**
Non-Hispanic White	325
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	128
85 and over	48
Less than 65	32

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2018

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2018 were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	75
Depression	18
Chronic Kidney Disease	48
Asthma	7
Osteoperosis	8
Atrial Fibrilation	41
Heart Failure	60
Chronic Obstructive Pulmonary Disease	23
Diabetes	37
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Megan M. Johnson, APNP, NP treated as a nurse in Marshfield, WI during 2019 were cardioversion.

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

cardioversion	19
doctor visit	615

2019 Medicare Patient Data

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	231
Female	179

**Ethnicity**
Non-Hispanic White	396
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	174
From 75 to 84	132
85 and over	57
Less than 65	47

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2019

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2019 were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	73
Depression	22
Chronic Kidney Disease	45
Asthma	6
Osteoperosis	7
Atrial Fibrilation	37
Heart Failure	60
Chronic Obstructive Pulmonary Disease	20
Diabetes	39
Dementia	9
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Megan M. Johnson, APNP, NP treated as a nurse in Marshfield, WI during 2020 were cardioversion and blood draw.

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

blood draw	12
cardioversion	13
doctor visit	476

2020 Medicare Patient Data

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	219
Female	154

**Ethnicity**
Non-Hispanic White	356
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	161
From 75 to 84	130
85 and over	46
Less than 65	36

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2020

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2020 were hypertension, high cholesterol, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	73
Stroke	6
Ischemic Heart Disease	70
Depression	20
Chronic Kidney Disease	50
Asthma	6
Osteoperosis	7
Atrial Fibrilation	43
Heart Failure	61
Chronic Obstructive Pulmonary Disease	20
Diabetes	38
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

doctor visit	369

2021 Medicare Patient Data

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	192
Female	124

**Ethnicity**
Non-Hispanic White	305
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	146
From 75 to 84	115
85 and over	33
Less than 65	22

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2021

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2021 were hypertension, high cholesterol, ischemic heart disease and atrial fibrilation.

Hypertension	75
High Cholesterol	71
Stroke	7
Ischemic Heart Disease	63
Depression	15
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	6
Atrial Fibrilation	56
Heart Failure	53
Chronic Obstructive Pulmonary Disease	16
Diabetes	30
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

doctor visit	487

2022 Medicare Patient Data

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	215
Female	149

**Ethnicity**
Non-Hispanic White	350
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	171
From 75 to 84	124
85 and over	51
Less than 65	18

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2022

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2022 were high cholesterol, hypertension, atrial fibrilation and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	51
Depression	15
Chronic Kidney Disease	32
Asthma	8
Osteoperosis	12
Atrial Fibrilation	63
Heart Failure	54
Chronic Obstructive Pulmonary Disease	24
Diabetes	38
Dementia	4
Cancer	20

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Megan M. Johnson, APNP, NP treated as a nurse in Marshfield, WI during 2023 were cardioversion.

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

cardioversion	12
doctor visit	522

2023 Medicare Patient Data

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	172
Female	138

**Age**
From 65 to 74	131
From 75 to 84	118
85 and over	44
Less than 65	17

Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP in 2023

The most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated during 2023 were high cholesterol, hypertension, atrial fibrilation and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	54
Depression	17
Chronic Kidney Disease	34
Asthma	10
Osteoperosis	12
Atrial Fibrilation	59
Heart Failure	58
Chronic Obstructive Pulmonary Disease	25
Diabetes	38
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Megan M. Johnson, APNP, NP for Medicare patients.

The highest averages for the top procedures that Megan M. Johnson, APNP, NP treated as a nurse in Marshfield, WI were lab tests, blood draw, stress testing and cardiac procedures.

blood draw	35
cardiac procedures	15
cardioversion	14
doctor visit	438
hospital care	15
inpatient care	15
lab tests	51
preventive care	11
stress testing	15

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Megan M. Johnson, APNP, NP.

**Gender**
Male	187
Female	144

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	286
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	118
85 and over	44
Less than 65	30
65 to 74	136

Average of Total of Conditions of Medicare patients treated by Megan M. Johnson, APNP, NP From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Megan M. Johnson, APNP, NP treated were hypertension, high cholesterol, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	65
Depression	22
Chronic Kidney Disease	40
Asthma	9
Osteoporosis	6
Heart Failure	52
Chronic Obstructive Pulmonary Disease	20
Diabetes	33
Atrial Fibrillation	43
Cancer	11
Dementia	5

Education & Training

She is certified by the American Nurses Credentialing Center and has a state license in Wisconsin.

Board Certification: American Nurses Credentialing Center

Licensed In: Wisconsin

Affiliations & Hospitals

Megan M. Johnson, APNP, NP is associated with these hospitals and organizations:

Aspirus Health

ASPIRUS MEDICAL GROUP INC

Ratings & Reviews

Megan M. Johnson, APNP, NP has an exceptional overall rating with an average of 4.98 out of 5 stars based on 50 ratings. We collect ratings and reviews of Megan M. Johnson, APNP, NP from all over the web to help you find the right in Marshfield, WI.

4.98

Overall Rating

(50 Ratings)

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General Payments

These charts describe general payments received by Megan M. Johnson, APNP, NP. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Alexion Pharmaceuticals, Inc.	$1,529 ULTOMIRIS $1,529
Abbott Laboratories	$1,231 CardioMEMS $1,202	MitraClip $29
Boehringer Ingelheim Pharmaceuticals, Inc.	$109 JARDIANCE $109
Novo Nordisk Inc	$98 Wegovy $75	Ozempic $23
United Therapeutics Corporation	$92 ORENITRAM $92
Other	$344 Repatha $56	LEQVIO $43	CAMZYOS $40	ELIQUIS $39	XARELTO $37	Other $129

**Types of Payments**
Travel and Lodging	$2,321
Food and Beverage	$1,082

Biography

Ms. Megan Johnson specializes in cardiac electrophysiology (heart rhythm). Ms. Johnson is professionally affiliated with Aspirus Health. Patients rated her highly, giving her an average of 5.0 stars (out of 5).