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Dr. Ryan Christopher Knoper, MD

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Specializes in: General Surgery and Thoracic Surgery

University of Arizona College of Medicine

Professional interests include: thoracic (chest) surgery procedures, heart problems

4403 Harrison Boulevard Suite 3835
Ogden, UT 84403

(801) 387-3475

Dr. Ryan Christopher Knoper, MD is a general surgeon in Maplewood, MN specializing in general surgery and thoracic surgery. He graduated from University of Arizona College of Medicine. Dr. Ryan Christopher Knoper, MD is affiliated with Optum, University of Minnesota Physicians, IHC HEALTH SERVICES INC and OptumCare Utah.

Office Locations

2945 Hazelwood Street Suite 100
Maplewood, MN 55109

(651) 227-6351

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OptumCare Utah

4403 Harrison Boulevard Suite 3835
Ogden, UT 84403

(801) 387-3475

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6401-6405 France Avenue S
Edina, MN 55435

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909 Fulton Street Se
Minneapolis, MN 55455

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Some issues Dr. Ryan Christopher Knoper, 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. Ryan Christopher Knoper, MD in 2023

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

Top 10%

By Affordability:

fully percutaneous transfemoral TAVR

minimally invasive aortic valve replacement

minimally invasive heart valve treatment

minimally invasive valve replacement

non-surgical aortic valve replacement

non-surgical heart valve treatment

non-surgical valve replacement

percutaneous valve treatment

transcatheter aortic valve replacement

transcatheter valve treatment

transfemoral TAVR

In 2023, Dr. Ryan Christopher Knoper, MD had a list price for fully percutaneous (incisionless) transfemoral TAVR, minimally invasive aortic valve replacement, minimally invasive heart valve treatment, minimally invasive valve replacement, non-surgical aortic valve replacement, non-surgical heart valve treatment, non-surgical valve replacement, percutaneous valve treatment, transcatheter aortic valve replacement (TAVR), transcatheter valve treatment, and transfemoral TAVR (through the groin) that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Minnesota. 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 25%

By Volume:

heart bypass surgery

By Affordability:

aortic valve replacement

coronary bypass surgery with artery graft

heart valve replacement

single bypass surgery

In 2013, among providers in related specialties within Minnesota, Dr. Ryan Christopher Knoper, MD performed more heart bypass surgery (CABG) procedures for Medicare patients than 75% of them and he also had a list price for aortic valve replacement, coronary bypass surgery with artery graft, heart valve replacement, and single bypass surgery 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

2019 Medicare Procedure Volume

The top procedures that Dr. Ryan Christopher Knoper, MD treated as a general surgeon in Maplewood, MN during 2019 were cardiac procedures, minimally invasive procedures and vascular procedures.

Volume of procedures performed by Dr. Ryan Christopher Knoper, MD for Medicare patients.

cardiac procedures	30
minimally invasive procedures	15
vascular procedures	15

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Christopher Knoper, MD.

**Gender**
Male	34
Female	19

**Age**
From 65 to 74	22
From 75 to 84	18
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryan Christopher Knoper, MD in 2019

The most common conditions of Medicare patients that Dr. Ryan Christopher Knoper, MD treated during 2019 were high cholesterol, hypertension, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	25
Chronic Kidney Disease	62
Asthma	0
Osteoperosis	0
Atrial Fibrilation	26
Heart Failure	62
Chronic Obstructive Pulmonary Disease	26
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Ryan Christopher Knoper, MD treated as a general surgeon in Maplewood, MN during 2020 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Ryan Christopher Knoper, MD for Medicare patients.

bypass surgery	15
cardiac procedures	52
doctor visit	12
hospital care	11
inpatient care	11
minimally invasive procedures	11
open surgery	30
thoracic (chest) surgery procedures	30
vascular procedures	11

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Christopher Knoper, MD.

**Gender**
Male	42
Female	28

**Ethnicity**
Non-Hispanic White	57
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	29
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryan Christopher Knoper, MD in 2020

The most common conditions of Medicare patients that Dr. Ryan Christopher Knoper, MD treated during 2020 were heart failure, high cholesterol, hypertension and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	34
Chronic Kidney Disease	53
Asthma	0
Osteoperosis	0
Atrial Fibrilation	39
Heart Failure	75
Chronic Obstructive Pulmonary Disease	33
Diabetes	40
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Ryan Christopher Knoper, MD treated as a general surgeon in Maplewood, MN during 2021 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and minimally invasive procedures.

Volume of procedures performed by Dr. Ryan Christopher Knoper, MD for Medicare patients.

bypass surgery	12
cardiac procedures	70
doctor visit	25
hospital care	17
inpatient care	17
minimally invasive procedures	23
open surgery	24
thoracic (chest) surgery procedures	24
vascular procedures	23

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Christopher Knoper, MD.

**Gender**
Male	61
Female	37

**Age**
From 65 to 74	39
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryan Christopher Knoper, MD in 2021

The most common conditions of Medicare patients that Dr. Ryan Christopher Knoper, MD treated during 2021 were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	24
Chronic Kidney Disease	66
Asthma	0
Osteoperosis	0
Atrial Fibrilation	34
Heart Failure	69
Chronic Obstructive Pulmonary Disease	18
Diabetes	41
Dementia	13
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Ryan Christopher Knoper, MD treated as a general surgeon in Maplewood, MN during 2022 were cardiac procedures, minimally invasive procedures and vascular procedures.

Volume of procedures performed by Dr. Ryan Christopher Knoper, MD for Medicare patients.

cardiac procedures	34
doctor visit	25
minimally invasive procedures	17
vascular procedures	17

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Christopher Knoper, MD.

**Gender**
Male	53
Female	23

**Age**
From 65 to 74	29
From 75 to 84	22
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryan Christopher Knoper, MD in 2022

The most common conditions of Medicare patients that Dr. Ryan Christopher Knoper, MD treated during 2022 were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	75
Depression	25
Chronic Kidney Disease	51
Asthma	0
Osteoperosis	0
Atrial Fibrilation	46
Heart Failure	64
Chronic Obstructive Pulmonary Disease	20
Diabetes	43
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Ryan Christopher Knoper, MD treated as a general surgeon in Maplewood, MN during 2023 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and minimally invasive procedures.

Volume of procedures performed by Dr. Ryan Christopher Knoper, MD for Medicare patients.

bypass surgery	19
cardiac procedures	90
doctor visit	34
hospital care	23
inpatient care	23
minimally invasive procedures	26
open surgery	38
thoracic (chest) surgery procedures	38
vascular procedures	26

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Christopher Knoper, MD.

**Gender**
Male	55
Female	37

**Age**
From 65 to 74	38
From 75 to 84	31
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryan Christopher Knoper, MD in 2023

The most common conditions of Medicare patients that Dr. Ryan Christopher Knoper, MD treated during 2023 were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	17
Ischemic Heart Disease	75
Depression	29
Chronic Kidney Disease	53
Asthma	12
Osteoperosis	14
Atrial Fibrilation	42
Heart Failure	65
Chronic Obstructive Pulmonary Disease	20
Diabetes	47
Dementia	0
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2019 - 2023

Volume of procedures performed by Dr. Ryan Christopher Knoper, MD for Medicare patients.

The highest averages for the top procedures that Dr. Ryan Christopher Knoper, MD treated as a general surgeon in Maplewood, MN were cardiac procedures, thoracic (chest) surgery procedures, open surgery and minimally invasive procedures.

bypass surgery	15
cardiac procedures	55
doctor visit	24
hospital care	17
inpatient care	17
minimally invasive procedures	18
open surgery	30
thoracic (chest) surgery procedures	30
vascular procedures	18

Average Medicare Patient Data From 2019 - 2023

Information about Medicare patients treated by Dr. Ryan Christopher Knoper, MD.

**Gender**
Male	49
Female	28

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	11
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	23
85 and over	0
Less than 65	0
65 to 74	31

Average of Total of Conditions of Medicare patients treated by Dr. Ryan Christopher Knoper, MD From 2019 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Ryan Christopher Knoper, MD treated were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	75
Depression	27
Chronic Kidney Disease	57
Asthma	2
Osteoporosis	2
Heart Failure	67
Chronic Obstructive Pulmonary Disease	23
Diabetes	42
Atrial Fibrillation	37
Dementia	2
Cancer	10

Education & Training

Dr. Ryan Christopher Knoper, MD graduated from University of Arizona College of Medicine. He completed residency at Rush University Medical Center. He is certified by the American Board of Surgery and has a state license in Illinois.

Medical School: University of Arizona College of Medicine

Residency: Rush University Medical Center

Board Certification: American Board of Surgery

Licensed In: Illinois

Affiliations & Hospitals

Dr. Ryan Christopher Knoper, MD is associated with these hospitals and organizations:

Optum

University of Minnesota Physicians

IHC HEALTH SERVICES INC

OptumCare Utah

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General Payments

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

**Payments by Company**
Medtronic, Inc.	$3,965 Avalus $137	$3,828
Edwards Lifesciences Corporation	$3,429 Edwards SAPIEN 3 Transcatheter Heart Valve $1,844	EDWARDS INTUITY Elite valve system $914	Carpentier-Edwards Physio II Annuloplasty Ring $480	SAPIEN 3 Ultra RESILIA $166	Carpentier-Edwards PERIMOUNT Magna Ease Pericardial Aortic Bioprosthesis $10	Other $16
Abbott Laboratories	$3,184 HeartMate PHP $1,571	HeartMate 3 Left Ventricular Dev $1,170	HeartMate $225	CardioMEMS HF System $137	MitraClip $74	Other $8
AtriCure, Inc.	$2,470 DISSECTOR $1,116	ATRICURE SYNERGY ABLATION SYSTEM $478	SYNERGY ABLATION SYSTEM $163	AtriCure AtriClip LAA Exclusion $119	Epi-Sense Guided Coagulation Sys $13	Other $580
Medtronic Vascular, Inc.	$2,349 $2,349
Other	$1,401 STERNALOCK BLU SYSTEM $319	SERI $126	HeartMate PHP $102	STRYKER $61	OFIRMEV $45	Other $748

**Types of Payments**
Travel and Lodging	$8,539
Food and Beverage	$4,315
Consulting Fee	$3,750
Education	$195

Biography

Dr. Ryan Knoper is a general surgery and thoracic surgery specialist in Minneapolis, MN, Maplewood, MN, and Edina, MN. Before performing his residency at Rush University Medical Center, Dr. Knoper attended the University of Arizona College of Medicine for medical school. He is professionally affiliated with the University of Minnesota Physicians.