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Dr. Willem J. Van Der Werf, MD

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Specializes in: General Surgery and Transplant Surgery
500 W Thomas Road Suite 300
Phoenix, AZ 85013

Dr. Willem J. Van Der Werf, MD is a general surgeon in Phoenix, AZ specializing in general surgery and transplant surgery. Dr. Willem J. Van Der Werf, MD is affiliated with Phoenix Children's.

View Doctor's Full Profile (602) 406-8000

Office Locations

2218 N Third Street
Phoenix, AZ 85004
(602) 252-2543
open_in_new
500 W Thomas Road Suite 300
Phoenix, AZ 85013
(602) 406-8000
(602) 406-3111
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In The News (see more mentions in the news)

“Using a pair of electrosurgical scissors, Dr. Willem Van der Werf cuts away at the tissue around Hansen's kidney.”—"Everyday Angels", Desert News, May 2016
“Using a pair of electrosurgical scissors, Dr. Willem Van der Werf cuts away at the tissue around Hansen s kidney.”—"Everyday Angels", Desert News, May 2016
“"There is no greater act of courage and kindness and love than to donate an organ," said Willem Van der Werf, one of the transplant surgeons on the team at Intermountain Medical Center.”—"Rare live liver transplant from daughter gives mother new life", Desert News, December 2014

Noteworthy Medicare Patient Procedures Performed by Dr. Willem J. Van Der Werf, MD in 2024

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

Top 5%

By Affordability:

hospital care

In 2024, Dr. Willem J. Van Der Werf, MD had a list price for hospital care that was lower than the list prices billed to Medicare by 95% 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.

Top 10%

By Affordability:

inpatient care
inpatient hospital care

In 2024, Dr. Willem J. Van Der Werf, MD had a list price for inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 90% 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. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2012 were hospital care, inpatient care, transplant procedures and abdominal surgery.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

abdominal surgery 17
hospital care 112
inpatient care 112
transplant procedures 17
urologic procedures 17

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2013 were hospital care, inpatient care, urologic procedures and transplant procedures.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

abdominal surgery 32
doctor visit 18
hospital care 105
inpatient care 105
open surgery 27
stent placement (stenting) 27
transplant procedures 32
urologic procedures 59

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 54
Female 35
Ethnicity
Non-Hispanic White 58
Black 0
Hispanic 18
Asian 0
Other 0
Native American 0
Age
From 65 to 74 0
From 75 to 84 0
85 and over 0
Less than 65 65

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2013

Hypertension 75
High Cholesterol 55
Stroke 0
Ischemic Heart Disease 34
Depression 29
Chronic Kidney Disease 75
Asthma 0
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 25
Chronic Obstructive Pulmonary Disease 0
Diabetes 54
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2014 were hospital care, inpatient care, urologic procedures and open surgery.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

abdominal surgery 33
doctor visit 13
hospital care 158
inpatient care 158
open surgery 35
stent placement (stenting) 35
transplant procedures 33
urologic procedures 68

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 55
Female 41
Ethnicity
Non-Hispanic White 75
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 0
From 75 to 84 0
85 and over 0
Less than 65 53

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2014

Hypertension 75
High Cholesterol 44
Stroke 0
Ischemic Heart Disease 42
Depression 28
Chronic Kidney Disease 75
Asthma 0
Osteoperosis 14
Atrial Fibrilation 11
Heart Failure 30
Chronic Obstructive Pulmonary Disease 0
Diabetes 63
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2015 were hospital care, inpatient care, urologic procedures and transplant procedures.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

abdominal surgery 18
doctor visit 16
hospital care 150
inpatient care 150
open surgery 18
stent placement (stenting) 18
transplant procedures 18
urologic procedures 36

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 98
Female 80
Ethnicity
Non-Hispanic White 136
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 0
From 75 to 84 0
85 and over 0
Less than 65 98

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2015

Hypertension 75
High Cholesterol 51
Stroke 0
Ischemic Heart Disease 33
Depression 26
Chronic Kidney Disease 75
Asthma 0
Osteoperosis 16
Atrial Fibrilation 13
Heart Failure 37
Chronic Obstructive Pulmonary Disease 0
Diabetes 43
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2016 were hospital care, inpatient care, urologic procedures and abdominal surgery.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

abdominal surgery 28
dissection 11
doctor visit 48
excision 11
hospital care 246
inpatient care 246
lymph node procedures 11
open surgery 16
stent placement (stenting) 16
transplant procedures 17
urologic procedures 33

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 48
Female 50
Ethnicity
Non-Hispanic White 60
Black 0
Hispanic 16
Asian 0
Other 0
Native American 0
Age
From 65 to 74 42
From 75 to 84 0
85 and over 0
Less than 65 36

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2016

Hypertension 75
High Cholesterol 49
Stroke 0
Ischemic Heart Disease 32
Depression 22
Chronic Kidney Disease 73
Asthma 16
Osteoperosis 0
Atrial Fibrilation 15
Heart Failure 23
Chronic Obstructive Pulmonary Disease 12
Diabetes 35
Dementia 12
Cancer 0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

doctor visit 81
hospital care 240
inpatient care 240

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 73
Female 50
Ethnicity
Non-Hispanic White 82
Black 0
Hispanic 30
Asian 0
Other 0
Native American 0
Age
From 65 to 74 52
From 75 to 84 0
85 and over 0
Less than 65 37

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2017

Hypertension 75
High Cholesterol 56
Stroke 0
Ischemic Heart Disease 47
Depression 25
Chronic Kidney Disease 75
Asthma 0
Osteoperosis 10
Atrial Fibrilation 15
Heart Failure 30
Chronic Obstructive Pulmonary Disease 21
Diabetes 48
Dementia 15
Cancer 14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2018 were hospital care, inpatient care, open surgery and abdominal surgery.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

abdominal surgery 26
doctor visit 63
endocrine surgery 14
gastrointestinal procedures 14
hospital care 218
inpatient care 218
open surgery 26
stent placement (stenting) 12
transplant procedures 12
urologic procedures 24

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 72
Female 65
Ethnicity
Non-Hispanic White 96
Black 0
Hispanic 21
Asian 0
Other 0
Native American 0
Age
From 65 to 74 63
From 75 to 84 0
85 and over 0
Less than 65 39

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2018

Hypertension 75
High Cholesterol 61
Stroke 0
Ischemic Heart Disease 54
Depression 38
Chronic Kidney Disease 75
Asthma 8
Osteoperosis 15
Atrial Fibrilation 16
Heart Failure 25
Chronic Obstructive Pulmonary Disease 22
Diabetes 54
Dementia 9
Cancer 11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2019 were hospital care, inpatient care, urologic procedures and abdominal surgery.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

abdominal surgery 28
dissection 11
doctor visit 54
excision 11
hospital care 160
inpatient care 160
lymph node procedures 11
open surgery 17
stent placement (stenting) 17
transplant procedures 17
urologic procedures 34

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 56
Female 54
Ethnicity
Non-Hispanic White 68
Black 0
Hispanic 25
Asian 0
Other 0
Native American 0
Age
From 65 to 74 57
From 75 to 84 0
85 and over 0
Less than 65 30

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2019

Hypertension 75
High Cholesterol 57
Stroke 0
Ischemic Heart Disease 39
Depression 29
Chronic Kidney Disease 69
Asthma 10
Osteoperosis 11
Atrial Fibrilation 16
Heart Failure 24
Chronic Obstructive Pulmonary Disease 18
Diabetes 48
Dementia 0
Cancer 19

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

doctor visit 13
hospital care 187
inpatient care 187

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 45
Female 34
Ethnicity
Non-Hispanic White 53
Black 0
Hispanic 11
Asian 0
Other 0
Native American 0
Age
From 65 to 74 44
From 75 to 84 18
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2020

Hypertension 75
High Cholesterol 56
Stroke 0
Ischemic Heart Disease 44
Depression 25
Chronic Kidney Disease 68
Asthma 0
Osteoperosis 0
Atrial Fibrilation 16
Heart Failure 15
Chronic Obstructive Pulmonary Disease 0
Diabetes 48
Dementia 14
Cancer 15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2021 were hospital care, inpatient care, abdominal surgery and urologic procedures.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

abdominal surgery 23
dissection 12
doctor visit 18
excision 12
hospital care 116
inpatient care 116
lymph node procedures 12
open surgery 11
stent placement (stenting) 11
transplant procedures 11
urologic procedures 22

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 30
Female 38
Ethnicity
Non-Hispanic White 43
Black 0
Hispanic 13
Asian 0
Other 0
Native American 0
Age
From 65 to 74 34
From 75 to 84 0
85 and over 0
Less than 65 22

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2021

Hypertension 75
High Cholesterol 50
Stroke 0
Ischemic Heart Disease 35
Depression 21
Chronic Kidney Disease 75
Asthma 0
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 16
Chronic Obstructive Pulmonary Disease 0
Diabetes 34
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

doctor visit 15
hospital care 59
inpatient care 59

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 31
Female 26
Ethnicity
Non-Hispanic White 40
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 29
From 75 to 84 0
85 and over 0
Less than 65 15

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2022

Hypertension 75
High Cholesterol 63
Stroke 0
Ischemic Heart Disease 28
Depression 21
Chronic Kidney Disease 58
Asthma 0
Osteoperosis 0
Atrial Fibrilation 26
Heart Failure 30
Chronic Obstructive Pulmonary Disease 0
Diabetes 51
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2023 were hospital care and inpatient care.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

doctor visit 19
hospital care 83
inpatient care 83

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 49
Female 34
Ethnicity
Non-Hispanic White 54
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 51
From 75 to 84 15
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2023

Hypertension 75
High Cholesterol 75
Stroke 0
Ischemic Heart Disease 37
Depression 17
Chronic Kidney Disease 53
Asthma 0
Osteoperosis 0
Atrial Fibrilation 18
Heart Failure 19
Chronic Obstructive Pulmonary Disease 19
Diabetes 48
Dementia 0
Cancer 16

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ during 2024 were hospital care and inpatient care.

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

hospital care 41
inpatient care 41

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Male 34
Female 27
Ethnicity
Non-Hispanic White 37
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 38
From 75 to 84 0
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD in 2024

Hypertension 75
High Cholesterol 75
Stroke 0
Ischemic Heart Disease 30
Depression 0
Chronic Kidney Disease 56
Asthma 0
Osteoperosis 18
Atrial Fibrilation 0
Heart Failure 23
Chronic Obstructive Pulmonary Disease 0
Diabetes 54
Dementia 0
Cancer 23

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Willem J. Van Der Werf, MD for Medicare patients.

The highest averages for the top procedures that Dr. Willem J. Van Der Werf, MD treated as a general surgeon in Phoenix, AZ were hospital care, inpatient care, urologic procedures and abdominal surgery.

abdominal surgery 25
dissection 11
doctor visit 32
endocrine surgery 14
excision 11
gastrointestinal procedures 14
hospital care 144
inpatient care 144
lymph node procedures 11
open surgery 21
stent placement (stenting) 19
transplant procedures 19
urologic procedures 36

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Willem J. Van Der Werf, MD.

Gender
Female 41
Male 49
Ethnicity
Black / African American 0
Asian / Pacific Islander 0
Non-Hispanic White 61
Native American / Alaskan Native 0
Hispanic 10
Other 0
Age
85 and over 0
75 to 84 2
Less than 65 30
65 to 74 31

Average of Total of Conditions of Medicare patients treated by Dr. Willem J. Van Der Werf, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Willem J. Van Der Werf, MD treated were hypertension, chronic kidney disease, high cholesterol and diabetes.

Hypertension 69
High Cholesterol 53
Stroke 0
Ischemic Heart Disease 35
Depression 21
Chronic Kidney Disease 63
Asthma 2
Osteoporosis 6
Heart Failure 22
Chronic Obstructive Pulmonary Disease 7
Diabetes 44
Atrial Fibrillation 11
Dementia 3
Cancer 7

Education & Training

He has a state license in Arizona.

Licensed In: Arizona

Affiliations & Hospitals

Dr. Willem J. Van Der Werf, MD is associated with these hospitals and organizations:

Phoenix Children's

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Willem J. Van Der Werf, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
Intuitive Surgical, Inc. $3,041 DAVINCI XI
$3,000 		Da Vinci Surgical System
$41
Paragonix Technologies, Inc. $283 PancreasPak
$283
Ethicon US, LLC $13 Echelon Flex
$13
Types of Payments
Education $3,000
Food and Beverage $338

Biography

Dr. Willem Van Der Werf's specialties are general surgery and transplant surgery. He practices in Phoenix, AZ. Dr. Van Der Werf is affiliated with Phoenix Children's.

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