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Home > AZ Providers > Emergency Physicians

Dr. John William Loewen, MD

(No ratings)

Specializes in: Emergency Medicine

10401 W. Thunderbird Boulevard
Sun City, AZ 85351

(623) 977-7211

Dr. John William Loewen, MD is an emergency medicine doctor in Sun City, AZ specializing in emergency medicine.

Office Locations

10401 W. Thunderbird Boulevard
Sun City, AZ 85351

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Noteworthy Medicare Patient Procedures Performed by Dr. John William Loewen, MD in 2023

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

Top 10%

By Volume:

emergency room care

In 2023, Dr. John William Loewen, MD performed more emergency room (ER) care procedures for Medicare patients than 90% of providers in related specialties within Arizona.

Top 25%

By Affordability:

emergency care

emergency room care

In 2012, Dr. John William Loewen, MD 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 providers in related specialties within Arizona. 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 William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2012 were emergency care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	648

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2013 were emergency care, outpatient care and hospital care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	646
hospital care	56
outpatient care	56

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	362
Female	450

**Ethnicity**
Non-Hispanic White	734
Black	32
Hispanic	33
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	241
From 75 to 84	292
85 and over	211
Less than 65	68

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2013

Hypertension	75
High Cholesterol	70
Stroke	17
Ischemic Heart Disease	51
Depression	31
Chronic Kidney Disease	34
Asthma	14
Osteoperosis	15
Atrial Fibrilation	25
Heart Failure	30
Chronic Obstructive Pulmonary Disease	26
Diabetes	32
Dementia	21
Cancer	18

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2014 were emergency care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	940

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	460
Female	576

**Ethnicity**
Non-Hispanic White	951
Black	25
Hispanic	39
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	326
From 75 to 84	366
85 and over	261
Less than 65	83

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2014

Hypertension	75
High Cholesterol	72
Stroke	14
Ischemic Heart Disease	51
Depression	33
Chronic Kidney Disease	37
Asthma	13
Osteoperosis	13
Atrial Fibrilation	25
Heart Failure	27
Chronic Obstructive Pulmonary Disease	26
Diabetes	32
Dementia	22
Cancer	20

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2015 were emergency care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	597

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	612
Female	704

**Ethnicity**
Non-Hispanic White	1198
Black	44
Hispanic	40
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	452
From 75 to 84	464
85 and over	310
Less than 65	90

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2015

Hypertension	75
High Cholesterol	69
Stroke	12
Ischemic Heart Disease	50
Depression	32
Chronic Kidney Disease	43
Asthma	18
Osteoperosis	15
Atrial Fibrilation	24
Heart Failure	28
Chronic Obstructive Pulmonary Disease	27
Diabetes	35
Dementia	23
Cancer	18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2016 were emergency care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	459

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	222
Female	275

**Ethnicity**
Non-Hispanic White	444
Black	0
Hispanic	31
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	164
From 75 to 84	159
85 and over	111
Less than 65	63

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2016

Hypertension	75
High Cholesterol	61
Stroke	14
Ischemic Heart Disease	46
Depression	35
Chronic Kidney Disease	45
Asthma	31
Osteoperosis	11
Atrial Fibrilation	23
Heart Failure	32
Chronic Obstructive Pulmonary Disease	27
Diabetes	33
Dementia	23
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2017 were emergency care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	783

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	363
Female	461

**Ethnicity**
Non-Hispanic White	705
Black	18
Hispanic	63
Asian	12
Other	13
Native American	13

**Age**
From 65 to 74	306
From 75 to 84	195
85 and over	155
Less than 65	168

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2017

Hypertension	72
High Cholesterol	46
Stroke	11
Ischemic Heart Disease	41
Depression	34
Chronic Kidney Disease	42
Asthma	15
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	31
Chronic Obstructive Pulmonary Disease	29
Diabetes	31
Dementia	21
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2018 were emergency care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	608

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	298
Female	379

**Ethnicity**
Non-Hispanic White	551
Black	12
Hispanic	67
Asian	11
Other	17
Native American	19

**Age**
From 65 to 74	249
From 75 to 84	157
85 and over	125
Less than 65	146

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2018

Hypertension	74
High Cholesterol	55
Stroke	12
Ischemic Heart Disease	44
Depression	38
Chronic Kidney Disease	48
Asthma	14
Osteoperosis	12
Atrial Fibrilation	20
Heart Failure	35
Chronic Obstructive Pulmonary Disease	29
Diabetes	32
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2019 were emergency care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	647

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	301
Female	388

**Ethnicity**
Non-Hispanic White	582
Black	0
Hispanic	66
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	247
From 75 to 84	198
85 and over	114
Less than 65	130

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2019

Hypertension	72
High Cholesterol	57
Stroke	10
Ischemic Heart Disease	44
Depression	40
Chronic Kidney Disease	43
Asthma	15
Osteoperosis	13
Atrial Fibrilation	19
Heart Failure	34
Chronic Obstructive Pulmonary Disease	29
Diabetes	32
Dementia	18
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2020 were emergency care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	627

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	320
Female	366

**Ethnicity**
Non-Hispanic White	563
Black	15
Hispanic	70
Asian	14
Other	12
Native American	12

**Age**
From 65 to 74	266
From 75 to 84	186
85 and over	106
Less than 65	128

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2020

Hypertension	73
High Cholesterol	54
Stroke	9
Ischemic Heart Disease	43
Depression	37
Chronic Kidney Disease	47
Asthma	12
Osteoperosis	10
Atrial Fibrilation	19
Heart Failure	33
Chronic Obstructive Pulmonary Disease	23
Diabetes	29
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2021 were emergency care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	574

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	257
Female	339

**Ethnicity**
Non-Hispanic White	483
Black	15
Hispanic	62
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	224
From 75 to 84	152
85 and over	109
Less than 65	111

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2021

Hypertension	66
High Cholesterol	52
Stroke	10
Ischemic Heart Disease	38
Depression	38
Chronic Kidney Disease	46
Asthma	13
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	32
Chronic Obstructive Pulmonary Disease	20
Diabetes	28
Dementia	19
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ during 2022 were emergency care.

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

emergency care	605

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	282
Female	320

**Ethnicity**
Non-Hispanic White	488
Black	0
Hispanic	63
Asian	18
Other	19
Native American	0

**Age**
From 65 to 74	242
From 75 to 84	180
85 and over	94
Less than 65	86

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2022

Hypertension	75
High Cholesterol	71
Stroke	18
Ischemic Heart Disease	34
Depression	36
Chronic Kidney Disease	29
Asthma	16
Osteoperosis	15
Atrial Fibrilation	28
Heart Failure	27
Chronic Obstructive Pulmonary Disease	23
Diabetes	30
Dementia	15
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John William Loewen, MD for Medicare patients.

The highest averages for the top procedures that Dr. John William Loewen, MD treated as an emergency medicine doctor in Sun City, AZ were emergency care, hospital care and outpatient care.

emergency care	648
hospital care	56
outpatient care	56

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John William Loewen, MD.

**Gender**
Male	316
Female	387

**Ethnicity**
Black / African American	14
Asian / Pacific Islander	6
Non-Hispanic White	609
Native American / Alaskan Native	4
Hispanic	48
Other	6

**Age**
75 to 84	213
85 and over	145
Less than 65	97
65 to 74	247

Average of Total of Conditions of Medicare patients treated by Dr. John William Loewen, MD From 2012 - 2022

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

Hypertension	66
High Cholesterol	55
Stroke	11
Ischemic Heart Disease	40
Depression	32
Chronic Kidney Disease	37
Asthma	14
Osteoporosis	11
Heart Failure	28
Chronic Obstructive Pulmonary Disease	23
Diabetes	28
Atrial Fibrillation	20
Dementia	18
Cancer	14

Education & Training

He has a state license in Arizona.

Licensed In: Arizona

Ratings & Reviews

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General Payments

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

**Payments by Company**
Actavis Pharma Inc	$239 DALVANCE $239
Janssen Pharmaceuticals, Inc	$140 XARELTO $140
Ethicon Inc.	$120 Monarch Platform $120
Boehringer Ingelheim Pharmaceuticals, Inc.	$29 Pradaxa $29
E.R. Squibb & Sons, L.L.C.	$14 ELIQUIS $14

**Types of Payments**
Food and Beverage	$543

Biography

Dr. John Loewen is an emergency medicine specialist in Sun City, AZ. He studied medicine at Loma Linda University School of Medicine.

Select Year:

Dr. John William Loewen, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. John William Loewen, 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 William Loewen, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Loewen, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. John William Loewen, MD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

Other Providers in Sun City, AZ