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Dr. Donald Walter Theisen Wessel, MD

Specializes in: Internal Medicine (Adult Medicine)
University of California, San Diego (UCSD), School of Medicine (1989)
Professional interests include: chronic illness, diabetes, heart problems, and more.
1500 Curve Crest Boulevard W
Stillwater, MN 55082

Dr. Donald Walter Theisen Wessel, MD is an internist in Stillwater, MN specializing in internal medicine (adult medicine). He graduated from University of California, San Diego (UCSD), School of Medicine in 1989 and has 37 years of experience.

View Doctor's Full Profile (651) 439-1234

Office Locations

1500 Curve Crest Boulevard W
Stillwater, MN 55082
(651) 439-1234
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Some issues Dr. Donald Walter Theisen Wessel, MD can help you with:

Heart Problems

The heart is one of the most important organs in the body. This smooth muscle expands and contracts rhythmically an entire lifetime, pumping blood to the lungs and then to every other cell in the body. When heart problems occur, it becomes difficult for the body to get the nutrients and oxygen it needs via the blood. So while there are a variety of illnesses and disorders that affect the heart, most of them cause weakness, exhaustion and shortness of breath. The most common heart conditions include heart disease, angina, arrhythmia, and valve disorders.

Heart disease is the leading cause of death in the United States for both men and women. This includes coronary artery disease, heart attacks, congestive heart failure, and congenital heart disease. Some conditions, such as genetics, cannot be controlled. But there are many other things one can do to lower their risk for heart disease. Controlling high blood pressure and cholesterol levels, reducing or stopping smoking, exercising more and losing weight if needed, and eating a diet low in sodium can all protect the heart.

Angina is a squeezing type of chest pain that happens when the muscles around the heart don't get enough oxygen. It can be regular or infrequent. Usually, angina is caused by coronary heart disease. However, not all chest pain is angina. Chest pain can also be caused by a lung infection or panic attack, for example, so it is important to have any sudden pain checked.

Arrhythmia is the word for when the heart beats too fast, too slow, or irregularly with skipped beats. It can feel frightening, and depending on the type it can be dangerous, but in most cases arrhythmia is not serious and can be treated. It is very common, especially in older adults.

Heart valve problems can happen in any one of the the heart's four valves that keep blood flowing where it needs to go. Babies can be born with problems in their heart valves, or valves can be damaged by infections. The valves can stiffen and become less mobile, or they can stop closing properly and 'leak' when the heart beats. Valve problems can usually be repaired surgically.

Noteworthy Medicare Patient Procedures Performed by Dr. Donald Walter Theisen Wessel, MD in 2024

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

Top 5%

By Volume:

blood draw
flu shot
phlebotomy for lab tests

By Affordability:

flu shot
flu vaccine
immunization
vaccines

In 2024, among providers in related specialties within Minnesota, Dr. Donald Walter Theisen Wessel, MD performed more blood draw, flu shot, and phlebotomy for lab tests procedures for Medicare patients than 95% of them and he also had a list price for flu shot, flu vaccine, immunization (preventive vaccines), and vaccines 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. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2012 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

blood draw 490
doctor visit 786
lab tests 523
preventive care 221
thoracic (chest) imaging 21
vaccines 221
X-rays 21

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2013 were blood draw, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

blood draw 669
doctor visit 629
lab tests 558
preventive care 456
thoracic (chest) imaging 23
vaccines 456
X-rays 23

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 376
Female 413
Ethnicity
Non-Hispanic White 769
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 305
From 75 to 84 257
85 and over 150
Less than 65 77

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2013

Hypertension 47
High Cholesterol 37
Stroke 3
Ischemic Heart Disease 27
Depression 18
Chronic Kidney Disease 18
Asthma 4
Osteoperosis 6
Atrial Fibrilation 15
Heart Failure 9
Chronic Obstructive Pulmonary Disease 9
Diabetes 25
Dementia 9
Cancer 13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2014 were blood draw, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

blood draw 581
breast procedures 29
doctor visit 593
lab tests 556
preventive care 102
thoracic (chest) imaging 40
vaccines 73
women's imaging 29
X-rays 69

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 197
Female 196
Age
From 65 to 74 150
From 75 to 84 111
85 and over 83
Less than 65 49

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2014

Hypertension 51
High Cholesterol 33
Stroke 4
Ischemic Heart Disease 29
Depression 20
Chronic Kidney Disease 18
Asthma 6
Osteoperosis 6
Atrial Fibrilation 18
Heart Failure 11
Chronic Obstructive Pulmonary Disease 10
Diabetes 25
Dementia 7
Cancer 11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2015 were blood draw, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

blood draw 604
breast procedures 26
doctor visit 732
lab tests 426
preventive care 270
thoracic (chest) imaging 55
vaccines 244
women's imaging 26
X-rays 81

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 476
Female 488
Ethnicity
Non-Hispanic White 942
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 332
From 75 to 84 296
85 and over 196
Less than 65 140

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2015

Hypertension 55
High Cholesterol 36
Stroke 5
Ischemic Heart Disease 33
Depression 23
Chronic Kidney Disease 23
Asthma 10
Osteoperosis 7
Atrial Fibrilation 18
Heart Failure 16
Chronic Obstructive Pulmonary Disease 11
Diabetes 26
Dementia 9
Cancer 11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2016 were blood draw, lab tests, preventive care and X-rays.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

blood draw 733
breast procedures 29
doctor visit 671
lab tests 497
preventive care 109
thoracic (chest) imaging 65
vaccines 80
women's imaging 29
X-rays 94

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 278
Female 283
Ethnicity
Non-Hispanic White 536
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 207
From 75 to 84 176
85 and over 94
Less than 65 84

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2016

Hypertension 57
High Cholesterol 39
Stroke 5
Ischemic Heart Disease 34
Depression 24
Chronic Kidney Disease 29
Asthma 12
Osteoperosis 7
Atrial Fibrilation 19
Heart Failure 17
Chronic Obstructive Pulmonary Disease 10
Diabetes 26
Dementia 7
Cancer 8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2017 were blood draw, lab tests, preventive care and X-rays.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

blood draw 712
breast procedures 26
doctor visit 677
lab tests 350
musculoskeletal imaging 26
preventive care 115
thoracic (chest) imaging 61
vaccines 89
women's imaging 26
X-rays 113

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 274
Female 289
Ethnicity
Non-Hispanic White 541
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 192
From 75 to 84 197
85 and over 103
Less than 65 71

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2017

Hypertension 58
High Cholesterol 35
Stroke 5
Ischemic Heart Disease 31
Depression 24
Chronic Kidney Disease 29
Asthma 7
Osteoperosis 7
Atrial Fibrilation 17
Heart Failure 17
Chronic Obstructive Pulmonary Disease 14
Diabetes 24
Dementia 9
Cancer 11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2018 were blood draw, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

ambulatory monitoring 14
blood draw 779
breast procedures 38
cardiac procedures 14
doctor visit 647
lab tests 302
musculoskeletal imaging 44
preventive care 146
spinal procedures 14
vaccines 108
women's imaging 38
X-rays 96

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 292
Female 370
Ethnicity
Non-Hispanic White 638
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 237
From 75 to 84 241
85 and over 108
Less than 65 76

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2018

Hypertension 60
High Cholesterol 40
Stroke 4
Ischemic Heart Disease 32
Depression 26
Chronic Kidney Disease 29
Asthma 6
Osteoperosis 8
Atrial Fibrilation 19
Heart Failure 16
Chronic Obstructive Pulmonary Disease 12
Diabetes 23
Dementia 9
Cancer 12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2019 were blood draw, lab tests, preventive care and X-rays.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

ambulatory monitoring 34
blood draw 1590
breast procedures 89
cardiac procedures 34
doctor visit 942
lab tests 697
musculoskeletal imaging 78
preventive care 269
spinal procedures 17
vaccines 166
women's imaging 89
X-rays 184

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 586
Female 673
Ethnicity
Non-Hispanic White 1212
Black 0
Hispanic 0
Asian 0
Other 36
Native American 0
Age
From 65 to 74 501
From 75 to 84 445
85 and over 196
Less than 65 117

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2019

Hypertension 61
High Cholesterol 42
Stroke 5
Ischemic Heart Disease 35
Depression 26
Chronic Kidney Disease 29
Asthma 5
Osteoperosis 10
Atrial Fibrilation 20
Heart Failure 16
Chronic Obstructive Pulmonary Disease 11
Diabetes 24
Dementia 10
Cancer 11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2020 were blood draw, lab tests, X-rays and preventive care.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

ambulatory monitoring 18
blood draw 1952
breast procedures 74
cardiac procedures 18
doctor visit 815
lab tests 147
musculoskeletal imaging 50
preventive care 96
vaccines 22
women's imaging 74
X-rays 124

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 685
Female 805
Ethnicity
Non-Hispanic White 1426
Black 0
Hispanic 0
Asian 0
Other 41
Native American 0
Age
From 65 to 74 635
From 75 to 84 490
85 and over 226
Less than 65 139

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2020

Hypertension 55
High Cholesterol 40
Stroke 4
Ischemic Heart Disease 33
Depression 23
Chronic Kidney Disease 30
Asthma 6
Osteoperosis 9
Atrial Fibrilation 17
Heart Failure 15
Chronic Obstructive Pulmonary Disease 10
Diabetes 24
Dementia 8
Cancer 10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2021 were blood draw, preventive care, X-rays and breast procedures.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

blood draw 1065
breast procedures 38
doctor visit 966
musculoskeletal imaging 21
preventive care 61
vaccines 23
women's imaging 38
X-rays 59

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 497
Female 564
Ethnicity
Non-Hispanic White 1011
Black 0
Hispanic 0
Asian 0
Other 36
Native American 0
Age
From 65 to 74 460
From 75 to 84 349
85 and over 162
Less than 65 90

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2021

Hypertension 55
High Cholesterol 39
Stroke 4
Ischemic Heart Disease 27
Depression 22
Chronic Kidney Disease 26
Asthma 6
Osteoperosis 10
Atrial Fibrilation 16
Heart Failure 13
Chronic Obstructive Pulmonary Disease 8
Diabetes 23
Dementia 8
Cancer 10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2022 were blood draw, preventive care, X-rays and breast procedures.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

blood draw 654
breast procedures 37
doctor visit 662
musculoskeletal imaging 18
preventive care 62
vaccines 25
women's imaging 37
X-rays 55

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 323
Female 322
Ethnicity
Non-Hispanic White 614
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 264
From 75 to 84 253
85 and over 100
Less than 65 28

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2022

Hypertension 68
High Cholesterol 54
Stroke 6
Ischemic Heart Disease 21
Depression 13
Chronic Kidney Disease 16
Asthma 6
Osteoperosis 13
Atrial Fibrilation 20
Heart Failure 10
Chronic Obstructive Pulmonary Disease 10
Diabetes 22
Dementia 4
Cancer 14

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2023 were blood draw, X-rays, breast procedures and preventive care.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

blood draw 624
breast procedures 36
doctor visit 601
musculoskeletal imaging 14
preventive care 36
women's imaging 36
X-rays 50

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 332
Female 334
Ethnicity
Non-Hispanic White 626
Black 0
Hispanic 0
Asian 0
Other 26
Native American 0
Age
From 65 to 74 263
From 75 to 84 254
85 and over 118
Less than 65 31

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2023

Hypertension 68
High Cholesterol 59
Stroke 6
Ischemic Heart Disease 21
Depression 13
Chronic Kidney Disease 20
Asthma 6
Osteoperosis 15
Atrial Fibrilation 18
Heart Failure 9
Chronic Obstructive Pulmonary Disease 9
Diabetes 22
Dementia 4
Cancer 16

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN during 2024 were blood draw, preventive care, vaccines and X-rays.

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

blood draw 629
breast procedures 27
doctor visit 612
musculoskeletal imaging 12
preventive care 429
vaccines 402
women's imaging 27
X-rays 39

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 353
Female 336
Ethnicity
Non-Hispanic White 658
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 282
From 75 to 84 267
85 and over 106
Less than 65 34

Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD in 2024

Hypertension 65
High Cholesterol 59
Stroke 5
Ischemic Heart Disease 22
Depression 13
Chronic Kidney Disease 20
Asthma 7
Osteoperosis 12
Atrial Fibrilation 19
Heart Failure 10
Chronic Obstructive Pulmonary Disease 10
Diabetes 24
Dementia 3
Cancer 13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Donald Walter Theisen Wessel, MD for Medicare patients.

The highest averages for the top procedures that Dr. Donald Walter Theisen Wessel, MD treated as an internist in Stillwater, MN were blood draw, lab tests, preventive care and vaccines.

ambulatory monitoring 22
blood draw 852
breast procedures 40
cardiac procedures 22
doctor visit 717
lab tests 450
musculoskeletal imaging 32
preventive care 182
spinal procedures 15
thoracic (chest) imaging 44
vaccines 159
women's imaging 40
X-rays 77

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD.

Gender
Male 359
Female 390
Ethnicity
Black / African American 0
Asian / Pacific Islander 0
Non-Hispanic White 690
Hispanic 0
Native American / Alaskan Native 0
Other 10
Age
85 and over 126
75 to 84 256
Less than 65 72
65 to 74 294

Average of Total of Conditions of Medicare patients treated by Dr. Donald Walter Theisen Wessel, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Donald Walter Theisen Wessel, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension 53
High Cholesterol 39
Stroke 4
Ischemic Heart Disease 26
Depression 18
Chronic Kidney Disease 22
Asthma 6
Osteoporosis 8
Heart Failure 12
Chronic Obstructive Pulmonary Disease 9
Diabetes 22
Atrial Fibrillation 16
Cancer 10
Dementia 6

Education & Training

Dr. Donald Walter Theisen Wessel, MD graduated from University of California, San Diego (UCSD), School of Medicine in 1989. He completed residency at Hennepin County Medical Center. He is certified by the American Board of Internal Medicine and has a state license in Minnesota.

Medical School: University of California, San Diego (UCSD), School of Medicine (1989)

Residency: Hennepin County Medical Center (1993)

Board Certification: American Board of Internal Medicine

Licensed In: Minnesota

Ratings & Reviews

Dr. Donald Walter Theisen Wessel, MD has an exceptional overall rating with an average of 4.91 out of 5 stars based on 263 ratings. We collect ratings and reviews of Dr. Donald Walter Theisen Wessel, MD from all over the web to help you find the right in Stillwater, MN. 

4.91
Overall Rating
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Biography

Patients rated Dr. Donald Wessel highly, giving him an average of 5.0 stars (out of 5). Clinical interests for Dr. Wessel include diabetes, heart problems, and preventive care. He is a graduate of the University of California, San Diego (UCSD), School of Medicine. Dr. Wessel's medical residency was performed at Hennepin County Medical Center. He is professionally affiliated with Lakeview Hospital.

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