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Home > OR Providers > Neurologists

Dr. Nizar Chahin, MD

Accepting New Patients

(129 Ratings)

Specializes in: Neurology (Brain & Spinal Cord Disease)

Professional interests include: dermatomyositis, muscle diseases (myopathies), inclusion body myositis (IBM), and more.

3303 S. Bond Avenue Eighth Floor
Portland, OR 97239

(503) 494-7772

Dr. Nizar Chahin, MD is a neurologist in Portland, OR specializing in neurology (brain & spinal cord disease). Dr. Nizar Chahin, MD is affiliated with OHSU Healthcare and UNIVERSITY PROFESSIONAL SERVICES.

Office Locations

3303 S. Bond Avenue Eighth Floor
Portland, OR 97239

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In The News

“Diagnosed with bulbar-onset ALS in February 2021 by Dr. Nizar Chahin at Oregon Health Sciences University, he told her "only nice people get ALS."”—"Caroline Emmons", The Denver Post, January 2023

“About 10 days later, Emmons saw Nizar Chahin and a young doctor working with...”—"Medical mystery: A novelist's labored speech signaled an unimaginable diagnosis", Philadelphia Inquirer, August 2021

Noteworthy Medicare Patient Procedures Performed by Dr. Nizar Chahin, MD in 2023

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

Top 10%

By Affordability:

electrodiagnostic testing

electrophysiological study

nerve conduction studies

In 2023, Dr. Nizar Chahin, MD had a list price for electrodiagnostic testing, electrophysiological (EP) study, and nerve conduction studies (NCS) that was lower than the list prices billed to Medicare by 90% 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. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2012 were diagnostic procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	716
doctor visit	375
hospital care	135
inpatient care	135

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2013 were diagnostic procedures.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	75
doctor visit	346

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	123
Female	154

**Ethnicity**
Non-Hispanic White	203
Black	59
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	61
85 and over	20
Less than 65	97

Conditions of Medicare patients treated by Dr. Nizar Chahin, MD in 2013

Hypertension	63
High Cholesterol	52
Stroke	5
Ischemic Heart Disease	27
Depression	28
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	5
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2014 were hospital care, inpatient care and diagnostic procedures.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	25
doctor visit	238
hospital care	106
inpatient care	106

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	118
Female	147

**Ethnicity**
Non-Hispanic White	179
Black	71
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	48
85 and over	28
Less than 65	112

Conditions of Medicare patients treated by Dr. Nizar Chahin, MD in 2014

Hypertension	68
High Cholesterol	46
Stroke	17
Ischemic Heart Disease	34
Depression	38
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	12
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2015 were diagnostic procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	47
doctor visit	158
hospital care	43
inpatient care	43

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	166
Female	288

**Ethnicity**
Non-Hispanic White	338
Black	0
Hispanic	52
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	96
85 and over	52
Less than 65	170

Conditions of Medicare patients treated by Dr. Nizar Chahin, MD in 2015

Hypertension	59
High Cholesterol	46
Stroke	15
Ischemic Heart Disease	25
Depression	38
Chronic Kidney Disease	26
Asthma	15
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	35
Dementia	17
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2016 were diagnostic procedures.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	77
doctor visit	97

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	79
Female	100

**Ethnicity**
Non-Hispanic White	152
Black	12
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	59
From 75 to 84	35
85 and over	11
Less than 65	74

Conditions of Medicare patients treated by Dr. Nizar Chahin, MD in 2016

Hypertension	59
High Cholesterol	39
Stroke	9
Ischemic Heart Disease	26
Depression	35
Chronic Kidney Disease	26
Asthma	19
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	15
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2017 were diagnostic procedures.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	121
doctor visit	179

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	114
Female	98

**Ethnicity**
Non-Hispanic White	195
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	92
From 75 to 84	0
85 and over	0
Less than 65	58

Conditions of Medicare patients treated by Dr. Nizar Chahin, MD in 2017

Hypertension	49
High Cholesterol	33
Stroke	0
Ischemic Heart Disease	23
Depression	32
Chronic Kidney Disease	25
Asthma	8
Osteoperosis	5
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	27
Dementia	5
Cancer	6

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2018 were diagnostic procedures.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	118
doctor visit	201

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	110
Female	105

**Ethnicity**
Non-Hispanic White	201
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	0
85 and over	0
Less than 65	61

Conditions of Medicare patients treated by Dr. Nizar Chahin, MD in 2018

Hypertension	50
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	27
Depression	32
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	5
Atrial Fibrilation	10
Heart Failure	19
Chronic Obstructive Pulmonary Disease	8
Diabetes	27
Dementia	6
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2019 were diagnostic procedures.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	96
doctor visit	173

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	112
Female	110

**Ethnicity**
Non-Hispanic White	198
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	98
From 75 to 84	62
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Nizar Chahin, MD in 2019

Hypertension	54
High Cholesterol	41
Stroke	5
Ischemic Heart Disease	32
Depression	27
Chronic Kidney Disease	26
Asthma	8
Osteoperosis	15
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	22
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2020 were diagnostic procedures.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	128
doctor visit	221

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	157
Female	131

**Ethnicity**
Non-Hispanic White	263
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	141
From 75 to 84	70
85 and over	12
Less than 65	65

Conditions of Medicare patients treated by Dr. Nizar Chahin, MD in 2020

Hypertension	55
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	28
Depression	36
Chronic Kidney Disease	26
Asthma	8
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	7
Diabetes	27
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2021 were diagnostic procedures.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	124
doctor visit	292

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	170
Female	144

**Ethnicity**
Non-Hispanic White	276
Black	0
Hispanic	13
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	134
From 75 to 84	94
85 and over	13
Less than 65	73

Conditions of Medicare patients treated by Dr. Nizar Chahin, MD in 2021

Hypertension	51
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	27
Depression	26
Chronic Kidney Disease	23
Asthma	9
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	7
Diabetes	24
Dementia	8
Cancer	7

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR during 2022 were diagnostic procedures.

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

diagnostic procedures	12
doctor visit	178

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	97
Female	87

**Ethnicity**
Non-Hispanic White	164
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	60
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Nizar Chahin, MD in 2022

Hypertension	57
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	19
Depression	23
Chronic Kidney Disease	16
Asthma	11
Osteoperosis	21
Atrial Fibrilation	17
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Nizar Chahin, MD for Medicare patients.

The highest averages for the top procedures that Dr. Nizar Chahin, MD treated as a neurologist in Portland, OR were diagnostic procedures, hospital care and inpatient care.

diagnostic procedures	139
doctor visit	223
hospital care	94
inpatient care	94

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Nizar Chahin, MD.

**Gender**
Male	113
Female	124

**Ethnicity**
Black / African American	12
Asian / Pacific Islander	0
Non-Hispanic White	197
Native American / Alaskan Native	0
Hispanic	5
Other	1

**Age**
75 to 84	47
85 and over	12
Less than 65	64
65 to 74	92

Average of Total of Conditions of Medicare patients treated by Dr. Nizar Chahin, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Nizar Chahin, MD treated were hypertension, high cholesterol, depression and diabetes.

Hypertension	51
High Cholesterol	39
Stroke	4
Ischemic Heart Disease	24
Depression	28
Chronic Kidney Disease	21
Asthma	9
Osteoporosis	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	9
Diabetes	26
Atrial Fibrillation	10
Dementia	7
Cancer	6

Education & Training

He completed residency at University of Missouri Health System. He is certified by the Certifications: American Board of Psychiatry and Neurology and has a state license in Oregon.

Residency: University of Missouri Health System

Board Certification: Certifications: American Board of Psychiatry and Neurology

Licensed In: Oregon

Affiliations & Hospitals

Dr. Nizar Chahin, MD is associated with these hospitals and organizations:

OHSU Healthcare

UNIVERSITY PROFESSIONAL SERVICES

Ratings & Reviews

Dr. Nizar Chahin, MD has an exceptional overall rating with an average of 4.8 out of 5 stars based on 129 ratings. We collect ratings and reviews of Dr. Nizar Chahin, MD from all over the web to help you find the right in Portland, OR.

4.8

Overall Rating

(129 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Sarepta Therapeutics, Inc.	$28,764 EXONDYS 51 $17,345	$11,419
GENZYME CORPORATION	$17,453 LUMIZYME $10,903	DISEASE STATE $2,018	MYOZYME $87	$4,445
ARGENX US, INC.	$7,775 VYVGART $1,616	VYVGART HYTRULO $121	$6,038
Strongbridge US INC.	$2,125 Keveyis $2,125
PTC Therapeutics, Inc.	$1,351 Emflaza $1,311	$39
Other	$1,533 NO PRODUCT DISCUSSED $1,220	Hizentra $180	ULTOMIRIS $105	BMN044 $29

**Types of Payments**
Consulting Fee	$46,130
Travel and Lodging	$8,245
Food and Beverage	$2,486
Honoraria	$2,000
Education	$140

Research Payments

Dr. Nizar Chahin, MD has received 72 research payments totaling $420,670.

Biography

Dr. Nizar Chahin practices neurology (brain & spinal cord disease). He completed his residency training at the University of Missouri Health System. In Dr. Chahin's practice, he is particularly interested in polymyositis, dermatomyositis, and inclusion body myositis (IBM). His average rating from his patients is 5.0 stars (out of 5). Dr. Chahin is professionally affiliated with OHSU Healthcare. He has an open panel in Portland, OR according to OHSU Healthcare.