In 2023, among providers in related specialties within Montana, Dr. Richard Thomas Dahlen, MD performed more brain imaging (neuroimaging), MRI (magnetic resonance imaging), neck imaging, orbit (eye socket) MRI, and spine imaging procedures for Medicare patients than 95% of them and he also had a list price for neck MRI, and X-rays 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.

Top 25%

By Affordability:

brain MRI

CT scan

face MRI

orbit MRI

In 2012, Dr. Richard Thomas Dahlen, MD had a list price for brain MRI, CT scan, face MRI, and orbit (eye socket) MRI that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Montana. 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. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2012 were X-rays, thoracic (chest) imaging, spinal procedures and CT scan.

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

abdominal imaging	274
brain imaging (neuroimaging)	447
catheterization	26
CT scan	556
gastrointestinal procedures	15
hip imaging	98
MRI (magnetic resonance imaging)	509
musculoskeletal imaging	244
neck imaging	57
pelvic imaging	208
spinal procedures	575
thoracic (chest) imaging	1300
ultrasound (sonogram)	255
vascular procedures	179
X-rays	1895

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2013 were X-rays, thoracic (chest) imaging, spinal procedures and MRI (magnetic resonance imaging).

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

abdominal imaging	213
aspiration	11
brain imaging (neuroimaging)	422
catheterization	22
CT scan	469
gastrointestinal procedures	18
hip imaging	74
MRI (magnetic resonance imaging)	536
musculoskeletal imaging	184
neck imaging	34
nuclear scan	16
pelvic imaging	167
pleural drainage	11
spinal procedures	563
thoracic (chest) imaging	1049
ultrasound (sonogram)	230
vascular procedures	175
X-rays	1516

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Male	1204
Female	1468

**Ethnicity**
Non-Hispanic White	2510
Black	0
Hispanic	23
Asian	0
Other	30
Native American	92

**Age**
From 65 to 74	1070
From 75 to 84	772
85 and over	398
Less than 65	432

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2013

Hypertension	61
High Cholesterol	42
Stroke	7
Ischemic Heart Disease	34
Depression	30
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	24
Diabetes	25
Dementia	12
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2014 were X-rays, thoracic (chest) imaging, CT scan and MRI (magnetic resonance imaging).

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

abdominal imaging	254
brain imaging (neuroimaging)	496
catheterization	25
CT scan	634
gastrointestinal procedures	26
hip imaging	63
MRI (magnetic resonance imaging)	564
musculoskeletal imaging	143
neck imaging	67
nuclear scan	12
pelvic imaging	169
spinal procedures	560
thoracic (chest) imaging	875
ultrasound (sonogram)	207
vascular procedures	133
X-rays	1218

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Male	1215
Female	1378

**Ethnicity**
Non-Hispanic White	2412
Black	0
Hispanic	28
Asian	0
Other	25
Native American	112

**Age**
From 65 to 74	1028
From 75 to 84	748
85 and over	369
Less than 65	448

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2014

Hypertension	62
High Cholesterol	42
Stroke	8
Ischemic Heart Disease	32
Depression	30
Chronic Kidney Disease	26
Asthma	8
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	22
Chronic Obstructive Pulmonary Disease	21
Diabetes	26
Dementia	11
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2015 were X-rays, thoracic (chest) imaging, CT scan and spinal procedures.

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

abdominal imaging	282
aspiration	16
brain imaging (neuroimaging)	629
catheterization	32
CT scan	686
gastrointestinal procedures	18
hip imaging	54
MRI (magnetic resonance imaging)	652
musculoskeletal imaging	168
neck imaging	57
nuclear scan	21
pelvic imaging	177
pleural drainage	16
spinal procedures	656
thoracic (chest) imaging	1005
ultrasound (sonogram)	214
vascular procedures	135
X-rays	1442

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Male	2642
Female	3086

**Ethnicity**
Non-Hispanic White	5324
Black	0
Hispanic	0
Asian	0
Other	82
Native American	264

**Age**
From 65 to 74	2282
From 75 to 84	1594
85 and over	838
Less than 65	1014

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2015

Hypertension	62
High Cholesterol	42
Stroke	10
Ischemic Heart Disease	32
Depression	32
Chronic Kidney Disease	26
Asthma	15
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	22
Chronic Obstructive Pulmonary Disease	21
Diabetes	27
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2016 were X-rays, thoracic (chest) imaging, MRI (magnetic resonance imaging) and spinal procedures.

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

abdominal imaging	237
aspiration	29
brain imaging (neuroimaging)	530
catheterization	28
CT scan	602
diagnostic procedures	11
gastrointestinal procedures	18
MRI (magnetic resonance imaging)	757
musculoskeletal imaging	73
neck imaging	94
nuclear scan	17
pelvic imaging	115
pleural drainage	17
spinal procedures	740
thoracic (chest) imaging	974
ultrasound (sonogram)	240
vascular procedures	113
X-rays	1218

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Male	1277
Female	1603

**Ethnicity**
Non-Hispanic White	2690
Black	0
Hispanic	29
Asian	0
Other	41
Native American	104

**Age**
From 65 to 74	1198
From 75 to 84	827
85 and over	374
Less than 65	481

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2016

Hypertension	63
High Cholesterol	44
Stroke	8
Ischemic Heart Disease	32
Depression	28
Chronic Kidney Disease	27
Asthma	21
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	20
Diabetes	24
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2017 were X-rays, MRI (magnetic resonance imaging), spinal procedures and thoracic (chest) imaging.

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

abdominal imaging	74
aspiration	29
brain imaging (neuroimaging)	438
catheterization	12
CT scan	355
diagnostic procedures	15
gastrointestinal procedures	20
image guided procedures	15
minimally invasive procedures	15
minor procedures	15
MRI (magnetic resonance imaging)	711
musculoskeletal imaging	11
neck imaging	82
nuclear scan	11
pelvic imaging	40
pleural drainage	14
spinal procedures	683
thoracic (chest) imaging	531
ultrasound (sonogram)	126
vascular procedures	85
X-rays	755

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Male	997
Female	1174

**Ethnicity**
Non-Hispanic White	2008
Black	0
Hispanic	27
Asian	0
Other	36
Native American	78

**Age**
From 65 to 74	911
From 75 to 84	639
85 and over	249
Less than 65	372

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2017

Hypertension	61
High Cholesterol	39
Stroke	9
Ischemic Heart Disease	30
Depression	31
Chronic Kidney Disease	27
Asthma	8
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	20
Diabetes	25
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2018 were spinal procedures, MRI (magnetic resonance imaging), brain imaging (neuroimaging) and CT scan.

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

aspiration	57
brain imaging (neuroimaging)	588
catheterization	13
CT scan	418
diagnostic procedures	15
eye procedures	14
gastrointestinal procedures	15
image guided procedures	15
minimally invasive procedures	15
minor procedures	15
MRI (magnetic resonance imaging)	1026
neck imaging	115
pleural drainage	21
spinal procedures	1027
ultrasound (sonogram)	45
vascular procedures	58
X-rays	329

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Male	1092
Female	1283

**Ethnicity**
Non-Hispanic White	2194
Black	0
Hispanic	30
Asian	0
Other	58
Native American	75

**Age**
From 65 to 74	1081
From 75 to 84	669
85 and over	266
Less than 65	359

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2018

Hypertension	60
High Cholesterol	44
Stroke	9
Ischemic Heart Disease	29
Depression	30
Chronic Kidney Disease	25
Asthma	7
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	24
Dementia	11
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2019 were MRI (magnetic resonance imaging), spinal procedures, brain imaging (neuroimaging) and CT scan.

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

aspiration	25
brain imaging (neuroimaging)	777
CT scan	466
eye procedures	42
gastrointestinal procedures	21
MRI (magnetic resonance imaging)	1391
neck imaging	103
pleural drainage	25
spinal procedures	1377
ultrasound (sonogram)	31
vascular procedures	59
X-rays	426

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Male	1209
Female	1398

**Ethnicity**
Non-Hispanic White	2410
Black	0
Hispanic	32
Asian	0
Other	51
Native American	101

**Age**
From 65 to 74	1180
From 75 to 84	799
85 and over	253
Less than 65	375

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2019

Hypertension	61
High Cholesterol	44
Stroke	9
Ischemic Heart Disease	31
Depression	31
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	23
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2020 were MRI (magnetic resonance imaging), spinal procedures, brain imaging (neuroimaging) and CT scan.

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

aspiration	22
brain imaging (neuroimaging)	635
CT scan	385
eye procedures	16
MRI (magnetic resonance imaging)	1234
neck imaging	85
pleural drainage	22
spinal procedures	1123
vascular procedures	15
X-rays	229

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Male	884
Female	1073

**Ethnicity**
Non-Hispanic White	1790
Black	0
Hispanic	40
Asian	0
Other	53
Native American	59

**Age**
From 65 to 74	903
From 75 to 84	581
85 and over	187
Less than 65	286

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2020

Hypertension	57
High Cholesterol	44
Stroke	10
Ischemic Heart Disease	28
Depression	33
Chronic Kidney Disease	27
Asthma	6
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	25
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2021 were MRI (magnetic resonance imaging), spinal procedures, brain imaging (neuroimaging) and CT scan.

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

brain imaging (neuroimaging)	743
CT scan	440
eye procedures	28
MRI (magnetic resonance imaging)	1620
neck imaging	113
spinal procedures	1526
vascular procedures	22
X-rays	335

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Male	957
Female	1245

**Ethnicity**
Non-Hispanic White	2013
Black	0
Hispanic	46
Asian	0
Other	54
Native American	62

**Age**
From 65 to 74	1057
From 75 to 84	658
85 and over	203
Less than 65	284

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2021

Hypertension	57
High Cholesterol	44
Stroke	9
Ischemic Heart Disease	26
Depression	29
Chronic Kidney Disease	26
Asthma	6
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	22
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT during 2022 were MRI (magnetic resonance imaging), spinal procedures, brain imaging (neuroimaging) and CT scan.

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

brain imaging (neuroimaging)	879
CT scan	612
eye procedures	43
MRI (magnetic resonance imaging)	1649
neck imaging	116
spinal procedures	1619
vascular procedures	16
X-rays	387

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Male	1048
Female	1394

**Ethnicity**
Non-Hispanic White	2271
Black	0
Hispanic	40
Asian	0
Other	62
Native American	45

**Age**
From 65 to 74	1098
From 75 to 84	823
85 and over	267
Less than 65	254

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2022

Hypertension	68
High Cholesterol	63
Stroke	15
Ischemic Heart Disease	22
Depression	28
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	16
Atrial Fibrilation	17
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	23
Dementia	9
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Richard Thomas Dahlen, MD for Medicare patients.

The highest averages for the top procedures that Dr. Richard Thomas Dahlen, MD treated as a diagnostic radiologist in Missoula, MT were MRI (magnetic resonance imaging), thoracic (chest) imaging, spinal procedures and X-rays.

abdominal imaging	222
aspiration	27
brain imaging (neuroimaging)	598
catheterization	22
CT scan	511
diagnostic procedures	13
eye procedures	28
gastrointestinal procedures	18
hip imaging	72
image guided procedures	15
minimally invasive procedures	15
minor procedures	15
MRI (magnetic resonance imaging)	968
musculoskeletal imaging	137
neck imaging	83
nuclear scan	15
pelvic imaging	146
pleural drainage	18
spinal procedures	949
thoracic (chest) imaging	955
ultrasound (sonogram)	168
vascular procedures	90
X-rays	886

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Richard Thomas Dahlen, MD.

**Gender**
Female	1372
Male	1138

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	2329
Native American / Alaskan Native	90
Hispanic	26
Other	44

**Age**
85 and over	309
75 to 84	737
Less than 65	391
65 to 74	1073

Average of Total of Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD From 2012 - 2022

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

Hypertension	55
High Cholesterol	40
Stroke	8
Ischemic Heart Disease	26
Depression	27
Chronic Kidney Disease	23
Asthma	8
Osteoporosis	9
Heart Failure	16
Chronic Obstructive Pulmonary Disease	16
Diabetes	22
Atrial Fibrillation	12
Dementia	10
Cancer	12

Education & Training

He has a state license in Montana.

Licensed In: Montana

Ratings & Reviews

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General Payments

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

**Payments by Company**
Stryker Corporation	$196 Trevo $150	CATALYST $46
Inari Medical, Inc.	$121 CT THROMBECTOMY SYSTEM KIT $121

**Types of Payments**
Food and Beverage	$317

Biography

Dr. Richard Dahlen practices neuroradiology and diagnostic radiology in Missoula, MT. He is a graduate of Uniformed Services University of the Health Sciences, F. Edward Hébert School of Medicine. He is professionally affiliated with Inland Imaging Associates.

Select Year:

Dr. Richard Thomas Dahlen, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Richard Thomas Dahlen, MD in 2023

By Volume:

By Affordability:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Richard Thomas Dahlen, MD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

Diagnostic Radiologists in Nearby Locations

Other Providers in Missoula, MT