In 2024, Dr. Nels Loyal Carlson, MD had a list price for diagnostic procedures, electrodiagnostic testing, electrophysiological (EP) study, and nerve conduction studies (NCS) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Oregon. 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. Nels Loyal Carlson, MD treated as in Portland, OR during 2012 were diagnostic procedures, aspiration and injections.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

aspiration	18
diagnostic procedures	232
doctor visit	349
injections	18

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2013 were diagnostic procedures, aspiration and injections.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

aspiration	34
diagnostic procedures	42
doctor visit	400
injections	34

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	89
Female	129

**Ethnicity**
Non-Hispanic White	193
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	59
85 and over	12
Less than 65	45

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2013

Hypertension	56
High Cholesterol	44
Stroke	6
Ischemic Heart Disease	25
Depression	27
Chronic Kidney Disease	13
Asthma	11
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	11
Diabetes	21
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2014 were diagnostic procedures, aspiration and injections.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

aspiration	26
diagnostic procedures	33
doctor visit	405
injections	26

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	86
Female	139

**Ethnicity**
Non-Hispanic White	212
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	61
85 and over	17
Less than 65	43

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2014

Hypertension	43
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	19
Depression	25
Chronic Kidney Disease	16
Asthma	8
Osteoperosis	8
Atrial Fibrilation	7
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	18
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2015 were aspiration, injections and diagnostic procedures.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

aspiration	39
diagnostic procedures	14
doctor visit	417
injections	39

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	184
Female	286

**Ethnicity**
Non-Hispanic White	440
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	234
From 75 to 84	124
85 and over	22
Less than 65	90

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2015

Hypertension	44
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	22
Depression	31
Chronic Kidney Disease	18
Asthma	13
Osteoperosis	8
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	6
Diabetes	19
Dementia	5
Cancer	7

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2016 were aspiration, injections and diagnostic procedures.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

aspiration	34
diagnostic procedures	27
doctor visit	380
injections	34

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	104
Female	140

**Ethnicity**
Non-Hispanic White	225
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	108
From 75 to 84	73
85 and over	19
Less than 65	44

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2016

Hypertension	50
High Cholesterol	30
Stroke	0
Ischemic Heart Disease	23
Depression	33
Chronic Kidney Disease	20
Asthma	16
Osteoperosis	11
Atrial Fibrilation	7
Heart Failure	11
Chronic Obstructive Pulmonary Disease	12
Diabetes	19
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2017 were aspiration, injections and diagnostic procedures.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

aspiration	17
diagnostic procedures	16
doctor visit	272
injections	17

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	71
Female	144

**Ethnicity**
Non-Hispanic White	196
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	95
From 75 to 84	59
85 and over	19
Less than 65	42

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2017

Hypertension	47
High Cholesterol	26
Stroke	0
Ischemic Heart Disease	20
Depression	36
Chronic Kidney Disease	22
Asthma	10
Osteoperosis	8
Atrial Fibrilation	0
Heart Failure	7
Chronic Obstructive Pulmonary Disease	7
Diabetes	20
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2018 were aspiration, injections and diagnostic procedures.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

aspiration	21
diagnostic procedures	11
doctor visit	276
injections	21

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	58
Female	109

**Ethnicity**
Non-Hispanic White	152
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	43
85 and over	13
Less than 65	30

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2018

Hypertension	49
High Cholesterol	41
Stroke	0
Ischemic Heart Disease	26
Depression	28
Chronic Kidney Disease	19
Asthma	14
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	0
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2019 were diagnostic procedures.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

diagnostic procedures	13
doctor visit	280

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	60
Female	96

**Age**
From 65 to 74	70
From 75 to 84	48
85 and over	14
Less than 65	24

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2019

Hypertension	52
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	31
Depression	31
Chronic Kidney Disease	21
Asthma	10
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	14
Chronic Obstructive Pulmonary Disease	0
Diabetes	21
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2020 were aspiration, injections and diagnostic procedures.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

aspiration	14
diagnostic procedures	12
doctor visit	185
injections	14

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	48
Female	86

**Ethnicity**
Non-Hispanic White	116
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	40
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2020

Hypertension	43
High Cholesterol	37
Stroke	0
Ischemic Heart Disease	21
Depression	40
Chronic Kidney Disease	17
Asthma	14
Osteoperosis	14
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	21
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2021 were diagnostic procedures.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

diagnostic procedures	11
doctor visit	239

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	50
Female	84

**Ethnicity**
Non-Hispanic White	118
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	51
From 75 to 84	52
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2021

Hypertension	51
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	28
Depression	28
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	13
Atrial Fibrilation	0
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	13
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

doctor visit	207

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	44
Female	74

**Ethnicity**
Non-Hispanic White	106
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	42
From 75 to 84	43
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2022

Hypertension	60
High Cholesterol	56
Stroke	12
Ischemic Heart Disease	19
Depression	22
Chronic Kidney Disease	12
Asthma	14
Osteoperosis	22
Atrial Fibrilation	11
Heart Failure	0
Chronic Obstructive Pulmonary Disease	9
Diabetes	16
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2023 were diagnostic procedures.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

diagnostic procedures	16
doctor visit	205

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	52
Female	86

**Ethnicity**
Non-Hispanic White	126
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	46
From 75 to 84	46
85 and over	14
Less than 65	32

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2023

Hypertension	54
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	20
Depression	26
Chronic Kidney Disease	11
Asthma	18
Osteoperosis	28
Atrial Fibrilation	16
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	15
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR during 2024 were diagnostic procedures.

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

diagnostic procedures	14
doctor visit	246

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Male	63
Female	86

**Ethnicity**
Non-Hispanic White	126
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	47
From 75 to 84	49
85 and over	20
Less than 65	33

Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD in 2024

Hypertension	49
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	21
Depression	32
Chronic Kidney Disease	13
Asthma	13
Osteoperosis	34
Atrial Fibrilation	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	0
Diabetes	17
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Nels Loyal Carlson, MD for Medicare patients.

The highest averages for the top procedures that Dr. Nels Loyal Carlson, MD treated as in Portland, OR were diagnostic procedures, aspiration and injections.

aspiration	25
diagnostic procedures	36
doctor visit	297
injections	25

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Nels Loyal Carlson, MD.

**Gender**
Female	112
Male	69

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	154
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	11
75 to 84	53
Less than 65	29
65 to 74	79

Average of Total of Conditions of Medicare patients treated by Dr. Nels Loyal Carlson, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Nels Loyal Carlson, MD treated were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	46
High Cholesterol	37
Stroke	1
Ischemic Heart Disease	21
Depression	27
Chronic Kidney Disease	15
Asthma	10
Osteoporosis	12
Heart Failure	7
Chronic Obstructive Pulmonary Disease	4
Diabetes	16
Atrial Fibrillation	6
Cancer	10
Dementia	1

Education & Training

Dr. Nels Loyal Carlson, MD graduated from Oregon Health & Science University School of Medicine in 1992. He has a state license in Oregon.

Medical School: Oregon Health & Science University School of Medicine (1992)

Licensed In: Oregon

Ratings & Reviews

Dr. Nels Loyal Carlson, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Nels Loyal Carlson, MD from all over the web to help you find the right in Portland, OR.

Overall Rating

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General Payments

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

**Payments by Company**
E.R. Squibb & Sons, L.L.C.	$23 YERVOY $23

**Types of Payments**
Food and Beverage	$23

Biography

Dr. Nels Carlson sees patients in Portland, OR. His medical specialty is orthopedics/orthopedic surgery. Dr. Carlson's areas of expertise consist of sports health, spine problems, and electromyography (EMG). Before completing his residency at Spaulding Rehabilitation Hospital, Dr. Carlson attended medical school at Oregon Health & Science University School of Medicine. He is affiliated with OHSU Healthcare. His practice in Portland, OR is open to new patients as reported by OHSU Healthcare.