In 2012, among providers in related specialties within California, Dr. Erik Paul Gierahn, MD performed more emergency room (ER) care procedures for Medicare patients than 75% of them and he also had a list price for emergency care, and emergency room (ER) care that was lower than the list prices billed to Medicare by 75% 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. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2012 were emergency care.

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

emergency care	564

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2013 were emergency care, minor procedures and wound repair (e.g. stitches).

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

doctor visit	13
emergency care	699
minor procedures	15
wound repair (e.g. stitches)	15

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	322
Female	433

**Ethnicity**
Non-Hispanic White	723
Black	18
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	212
85 and over	218
Less than 65	142

Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD in 2013

Hypertension	69
High Cholesterol	57
Stroke	8
Ischemic Heart Disease	43
Depression	32
Chronic Kidney Disease	34
Asthma	16
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	32
Chronic Obstructive Pulmonary Disease	22
Diabetes	28
Dementia	22
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2014 were emergency care.

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

doctor visit	17
emergency care	662

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	268
Female	464

**Ethnicity**
Non-Hispanic White	680
Black	36
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	181
From 75 to 84	215
85 and over	178
Less than 65	158

Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD in 2014

Hypertension	72
High Cholesterol	57
Stroke	8
Ischemic Heart Disease	42
Depression	32
Chronic Kidney Disease	36
Asthma	16
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	34
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	19
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2015 were emergency care, minor procedures, wound repair (e.g. stitches) and outpatient care.

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

doctor visit	50
emergency care	742
hospital care	11
minor procedures	11
outpatient care	11
wound repair (e.g. stitches)	11

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	672
Female	936

**Ethnicity**
Non-Hispanic White	1486
Black	56
Hispanic	0
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	476
From 75 to 84	426
85 and over	430
Less than 65	276

Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD in 2015

Hypertension	69
High Cholesterol	54
Stroke	10
Ischemic Heart Disease	40
Depression	34
Chronic Kidney Disease	40
Asthma	22
Osteoperosis	12
Atrial Fibrilation	21
Heart Failure	36
Chronic Obstructive Pulmonary Disease	26
Diabetes	32
Dementia	23
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2016 were emergency care, outpatient care and hospital care.

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

doctor visit	60
emergency care	602
hospital care	13
outpatient care	13

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	294
Female	392

**Ethnicity**
Non-Hispanic White	642
Black	14
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	198
From 75 to 84	211
85 and over	164
Less than 65	113

Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD in 2016

Hypertension	74
High Cholesterol	52
Stroke	9
Ischemic Heart Disease	41
Depression	33
Chronic Kidney Disease	45
Asthma	28
Osteoperosis	12
Atrial Fibrilation	17
Heart Failure	33
Chronic Obstructive Pulmonary Disease	24
Diabetes	35
Dementia	26
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2017 were emergency care, outpatient care and hospital care.

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

emergency care	671
hospital care	20
outpatient care	20

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	287
Female	417

**Ethnicity**
Non-Hispanic White	665
Black	19
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	197
85 and over	156
Less than 65	146

Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD in 2017

Hypertension	70
High Cholesterol	51
Stroke	8
Ischemic Heart Disease	42
Depression	36
Chronic Kidney Disease	46
Asthma	12
Osteoperosis	10
Atrial Fibrilation	18
Heart Failure	33
Chronic Obstructive Pulmonary Disease	24
Diabetes	34
Dementia	23
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2018 were emergency care, outpatient care and hospital care.

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

emergency care	741
hospital care	33
outpatient care	33

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	297
Female	428

**Ethnicity**
Non-Hispanic White	687
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	220
85 and over	178
Less than 65	120

Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD in 2018

Hypertension	74
High Cholesterol	58
Stroke	8
Ischemic Heart Disease	45
Depression	34
Chronic Kidney Disease	48
Asthma	12
Osteoperosis	10
Atrial Fibrilation	20
Heart Failure	34
Chronic Obstructive Pulmonary Disease	24
Diabetes	34
Dementia	23
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2019 were emergency care.

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

doctor visit	34
emergency care	636

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	264
Female	380

**Ethnicity**
Non-Hispanic White	609
Black	0
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	204
From 75 to 84	182
85 and over	155
Less than 65	103

Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD in 2019

Hypertension	74
High Cholesterol	58
Stroke	8
Ischemic Heart Disease	41
Depression	35
Chronic Kidney Disease	45
Asthma	11
Osteoperosis	11
Atrial Fibrilation	18
Heart Failure	33
Chronic Obstructive Pulmonary Disease	23
Diabetes	33
Dementia	21
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2020 were emergency care.

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

emergency care	527

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	232
Female	299

**Ethnicity**
Non-Hispanic White	508
Black	0
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	181
85 and over	94
Less than 65	78

Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD in 2020

Hypertension	72
High Cholesterol	56
Stroke	9
Ischemic Heart Disease	42
Depression	33
Chronic Kidney Disease	53
Asthma	12
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	34
Chronic Obstructive Pulmonary Disease	26
Diabetes	34
Dementia	24
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2021 were emergency care.

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

emergency care	393

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	191
Female	255

**Ethnicity**
Non-Hispanic White	427
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	144
From 75 to 84	135
85 and over	97
Less than 65	70

Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD in 2021

Hypertension	75
High Cholesterol	61
Stroke	11
Ischemic Heart Disease	41
Depression	32
Chronic Kidney Disease	46
Asthma	10
Osteoperosis	12
Atrial Fibrilation	23
Heart Failure	30
Chronic Obstructive Pulmonary Disease	21
Diabetes	31
Dementia	22
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA during 2022 were emergency care.

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

emergency care	355

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	171
Female	221

**Ethnicity**
Non-Hispanic White	354
Black	0
Hispanic	0
Asian	0
Other	26
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	140
85 and over	86
Less than 65	56

Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD in 2022

Hypertension	75
High Cholesterol	74
Stroke	14
Ischemic Heart Disease	37
Depression	35
Chronic Kidney Disease	38
Asthma	15
Osteoperosis	19
Atrial Fibrilation	33
Heart Failure	33
Chronic Obstructive Pulmonary Disease	22
Diabetes	33
Dementia	19
Cancer	22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Erik Paul Gierahn, MD for Medicare patients.

The highest averages for the top procedures that Dr. Erik Paul Gierahn, MD treated as an emergency medicine doctor in Van Nuys, CA were emergency care, hospital care, outpatient care and minor procedures.

doctor visit	34
emergency care	599
hospital care	19
minor procedures	13
outpatient care	19
wound repair (e.g. stitches)	13

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Erik Paul Gierahn, MD.

**Gender**
Male	272
Female	384

**Ethnicity**
Black / African American	14
Asian / Pacific Islander	0
Non-Hispanic White	616
Native American / Alaskan Native	0
Hispanic	0
Other	8

**Age**
75 to 84	192
85 and over	159
Less than 65	114
65 to 74	189

Average of Total of Conditions of Medicare patients treated by Dr. Erik Paul Gierahn, MD From 2012 - 2022

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

Hypertension	65
High Cholesterol	52
Stroke	8
Ischemic Heart Disease	37
Depression	30
Chronic Kidney Disease	39
Asthma	14
Osteoporosis	11
Heart Failure	30
Chronic Obstructive Pulmonary Disease	21
Diabetes	29
Atrial Fibrillation	18
Dementia	20
Cancer	13

Education & Training

He has a state license in Wisconsin.

Licensed In: Wisconsin

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Biography

Dr. Erik Gierahn's medical specialty is emergency medicine. He attended medical school at the University of Wisconsin School of Medicine and Public Health.