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Home > CO Providers > Anesthesiologists

Dr. Ryan Lee Rathjen, MD

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Specializes in: Anesthesiology, Pain Medicine and Critical Care (Intensive Care Medicine)

9395 Crown Crest Boulevard
Parker, CO 80138

(303) 422-9438

Dr. Ryan Lee Rathjen, MD is an anesthesiologist in Aurora, CO specializing in anesthesiology, pain medicine and critical care (intensive care medicine).

Office Locations

12605 E 16th Avenue
Aurora, CO 80045

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9395 Crown Crest Boulevard
Parker, CO 80138

(303) 422-9438

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Noteworthy Medicare Patient Procedures Performed by Dr. Ryan Lee Rathjen, MD in 2023

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

Top 5%

By Volume:

brachial plexus nerve block injection

nerve block

By Affordability:

peripheral nerve block

In 2023, among providers in related specialties within Colorado, Dr. Ryan Lee Rathjen, MD performed more brachial plexus nerve block injection, and nerve block procedures for Medicare patients than 95% of them and he also had a list price for peripheral nerve block 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. Ryan Lee Rathjen, MD treated as an anesthesiologist in Aurora, CO during 2012 were catheterization.

Volume of procedures performed by Dr. Ryan Lee Rathjen, MD for Medicare patients.

catheterization	19

Medicare Procedure and Patient Information

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	107
Female	106

**Age**
From 65 to 74	78
From 75 to 84	63
85 and over	30
Less than 65	42

Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD in 2013

Hypertension	75
High Cholesterol	60
Stroke	7
Ischemic Heart Disease	45
Depression	32
Chronic Kidney Disease	35
Asthma	8
Osteoperosis	16
Atrial Fibrilation	21
Heart Failure	35
Chronic Obstructive Pulmonary Disease	30
Diabetes	37
Dementia	12
Cancer	16

Medicare Procedure and Patient Information

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	45
Female	73

**Ethnicity**
Non-Hispanic White	104
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	53
From 75 to 84	30
85 and over	13
Less than 65	22

Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD in 2014

Hypertension	69
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	45
Depression	36
Chronic Kidney Disease	35
Asthma	14
Osteoperosis	0
Atrial Fibrilation	18
Heart Failure	32
Chronic Obstructive Pulmonary Disease	30
Diabetes	30
Dementia	14
Cancer	17

Medicare Procedure and Patient Information

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	28
Female	54

**Age**
From 65 to 74	44
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD in 2015

Hypertension	51
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	0
Depression	29
Chronic Kidney Disease	27
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	27
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	23
Female	32

**Age**
From 65 to 74	33
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD in 2016

Hypertension	65
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	35
Depression	25
Chronic Kidney Disease	33
Asthma	25
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	20
Diabetes	27
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	21
Female	36

**Age**
From 65 to 74	24
From 75 to 84	21
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD in 2017

Hypertension	70
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	37
Depression	26
Chronic Kidney Disease	39
Asthma	0
Osteoperosis	0
Atrial Fibrilation	19
Heart Failure	25
Chronic Obstructive Pulmonary Disease	0
Diabetes	26
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Ryan Lee Rathjen, MD treated as an anesthesiologist in Aurora, CO during 2018 were nerve block, hospital care and inpatient care.

Volume of procedures performed by Dr. Ryan Lee Rathjen, MD for Medicare patients.

hospital care	14
inpatient care	14
nerve block	17

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	40
Female	74

**Age**
From 65 to 74	55
From 75 to 84	29
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD in 2018

Hypertension	65
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	34
Depression	32
Chronic Kidney Disease	39
Asthma	11
Osteoperosis	21
Atrial Fibrilation	18
Heart Failure	19
Chronic Obstructive Pulmonary Disease	17
Diabetes	24
Dementia	22
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Ryan Lee Rathjen, MD treated as an anesthesiologist in Aurora, CO during 2019 were hospital care, inpatient care and nerve block.

Volume of procedures performed by Dr. Ryan Lee Rathjen, MD for Medicare patients.

hospital care	24
inpatient care	24
nerve block	17

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	37
Female	59

**Ethnicity**
Non-Hispanic White	83
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	45
From 75 to 84	24
85 and over	12
Less than 65	15

Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD in 2019

Hypertension	58
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	35
Depression	32
Chronic Kidney Disease	44
Asthma	13
Osteoperosis	19
Atrial Fibrilation	11
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	34
Dementia	15
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Ryan Lee Rathjen, MD treated as an anesthesiologist in Aurora, CO during 2020 were nerve block and injections.

Volume of procedures performed by Dr. Ryan Lee Rathjen, MD for Medicare patients.

injections	11
nerve block	11

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	162
Female	170

**Ethnicity**
Non-Hispanic White	300
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	198
From 75 to 84	85
85 and over	14
Less than 65	35

Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD in 2020

Hypertension	67
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	36
Depression	28
Chronic Kidney Disease	38
Asthma	11
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	25
Dementia	8
Cancer	23

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Ryan Lee Rathjen, MD treated as an anesthesiologist in Aurora, CO during 2021 were nerve block and injections.

Volume of procedures performed by Dr. Ryan Lee Rathjen, MD for Medicare patients.

injections	49
nerve block	49

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	210
Female	249

**Ethnicity**
Non-Hispanic White	394
Black	0
Hispanic	28
Asian	0
Other	26
Native American	0

**Age**
From 65 to 74	248
From 75 to 84	139
85 and over	20
Less than 65	52

Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD in 2021

Hypertension	62
High Cholesterol	57
Stroke	3
Ischemic Heart Disease	37
Depression	25
Chronic Kidney Disease	39
Asthma	12
Osteoperosis	14
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	18
Dementia	8
Cancer	22

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Ryan Lee Rathjen, MD treated as an anesthesiologist in Aurora, CO during 2022 were nerve block and injections.

Volume of procedures performed by Dr. Ryan Lee Rathjen, MD for Medicare patients.

injections	23
nerve block	23

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	235
Female	211

**Ethnicity**
Non-Hispanic White	396
Black	0
Hispanic	11
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	245
From 75 to 84	143
85 and over	27
Less than 65	31

Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD in 2022

Hypertension	67
High Cholesterol	69
Stroke	6
Ischemic Heart Disease	25
Depression	26
Chronic Kidney Disease	26
Asthma	11
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	19
Dementia	7
Cancer	28

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Ryan Lee Rathjen, MD for Medicare patients.

The highest averages for the top procedures that Dr. Ryan Lee Rathjen, MD treated as an anesthesiologist in Aurora, CO were injections, nerve block, catheterization and hospital care.

catheterization	19
hospital care	19
injections	27
inpatient care	19
nerve block	23

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Ryan Lee Rathjen, MD.

**Gender**
Male	82
Female	96

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	116
Native American / Alaskan Native	0
Hispanic	4
Other	4

**Age**
75 to 84	48
85 and over	10
Less than 65	17
65 to 74	93

Average of Total of Conditions of Medicare patients treated by Dr. Ryan Lee Rathjen, MD From 2012 - 2022

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

Hypertension	59
High Cholesterol	51
Stroke	1
Ischemic Heart Disease	29
Depression	26
Chronic Kidney Disease	32
Asthma	9
Osteoporosis	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	24
Atrial Fibrillation	11
Dementia	7
Cancer	12

Education & Training

He has a state license in Nebraska.

Licensed In: Nebraska

Ratings & Reviews

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General Payments

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

**Payments by Company**
Edwards Lifesciences Corporation	$196 ClearSight System $196
Pacira Pharmaceuticals Incorporated	$123 Exparel $123
Merck Sharp & Dohme Corporation	$28 BRIDION $28

**Types of Payments**
Food and Beverage	$347

Biography

Dr. Ryan Rathjen is an anesthesiology, pain medicine, and critical care (intensive care medicine) specialist in Parker, CO and Aurora, CO. He studied medicine at the University of South Dakota, Sanford School of Medicine.