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Dr. Michael John Lefor, MD

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Specializes in: Adult Pulmonology, Sleep Medicine and Critical Care (Intensive Care Medicine)

Oregon Health & Science University School of Medicine (1996)

Professional interests include: chronic obstructive pulmonary disease (COPD), sleep disorders, asthma

1111 Northeast 99th Avenue Suite 200
Portland, OR 97220

(503) 963-3030

Dr. Michael John Lefor, MD is a pulmonologist in Portland, OR specializing in adult pulmonology, sleep medicine and critical care (intensive care medicine). He graduated from Oregon Health & Science University School of Medicine in 1996 and has 30 years of experience. Dr. Michael John Lefor, MD is affiliated with Providence, The Oregon Clinic and Providence Medical Group - Oregon.

Office Locations

1111 Northeast 99th Avenue Suite 200
Portland, OR 97220

(503) 963-3030

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Some issues Dr. Michael John Lefor, MD can help you with:

Asthma

Asthma is a chronic lung disease where the tissue and airways of the lungs become extremely sensitive to certain substances. When these substances are breathed in, the lungs become inflamed. The muscles around the airways tighten and squeeze the lungs, and passages within the lungs swell and tighten. The airways themselves produce mucus, which further clogs the tightened, swollen airways. A person having an asthma attack finds it very difficult to breathe, and a severe attack can even be fatal.

Asthma affects people of all ages, but people with asthma are most often diagnosed as children. Symptoms can include wheezing, a tight feeling in the chest, shortness of breath, and coughing. Some people have mild symptoms all the time, and some people have no symptoms at all, but everyone with asthma is susceptible to occasional severe attacks or flare-ups of symptoms when they are exposed to triggers. Triggers vary widely but can include:

Allergens (dust mites, pet fur, mold, pollen, grass)
Irritants (smoke, pollution, dust, chemicals)
Viral infections
Physical activity, especially outdoors
Certain medications or chemicals in foods (aspirin, sulfites)

Treatment for most asthma patients involves three steps. Patients learn what their asthma triggers are and avoid them. They take a daily control medication, usually an inhaled corticosteroid, to reduce inflammation in the lungs. Also, they have rescue medication with them at all times to take in case of a severe attack. These quick-acting inhaled medications relax the muscles around the airways and allow the lungs to open up for air.

There is no cure for asthma, but with treatment it should not interfere with daily life and activities.

Noteworthy Medicare Patient Procedures Performed by Dr. Michael John Lefor, MD in 2024

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

Top 25%

By Volume:

inpatient hospital care

In 2012, Dr. Michael John Lefor, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of providers in related specialties within Oregon.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2012 were sleep study, hospital care, inpatient care and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	99
doctor visit	188
hospital care	100
inpatient care	100
pulmonary testing	61
sleep study	148
thoracic (chest) imaging	12
X-rays	12

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2013 were sleep study, airway management, hospital care and inpatient care.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	80
doctor visit	208
hospital care	71
inpatient care	71
pulmonary testing	34
sleep study	120
tracheal (windpipe) procedures	11

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	149
Female	156

**Ethnicity**
Non-Hispanic White	260
Black	15
Hispanic	0
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	109
From 75 to 84	65
85 and over	30
Less than 65	101

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2013

Hypertension	65
High Cholesterol	50
Stroke	8
Ischemic Heart Disease	33
Depression	41
Chronic Kidney Disease	34
Asthma	21
Osteoperosis	6
Atrial Fibrilation	23
Heart Failure	34
Chronic Obstructive Pulmonary Disease	33
Diabetes	47
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2014 were hospital care, inpatient care, sleep study and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	53
doctor visit	135
hospital care	128
inpatient care	128
pulmonary testing	25
sleep study	76
thoracic (chest) imaging	19
X-rays	19

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	163
Female	114

**Ethnicity**
Non-Hispanic White	238
Black	15
Hispanic	0
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	100
From 75 to 84	79
85 and over	18
Less than 65	80

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2014

Hypertension	67
High Cholesterol	46
Stroke	6
Ischemic Heart Disease	39
Depression	34
Chronic Kidney Disease	42
Asthma	22
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	33
Chronic Obstructive Pulmonary Disease	31
Diabetes	40
Dementia	13
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2015 were sleep study, hospital care, inpatient care and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	92
doctor visit	153
hospital care	105
inpatient care	105
preventive care	13
pulmonary testing	28
sleep study	150
vaccines	13

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	332
Female	344

**Ethnicity**
Non-Hispanic White	580
Black	42
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	122
85 and over	48
Less than 65	228

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2015

Hypertension	71
High Cholesterol	48
Stroke	8
Ischemic Heart Disease	33
Depression	35
Chronic Kidney Disease	38
Asthma	23
Osteoperosis	6
Atrial Fibrilation	18
Heart Failure	33
Chronic Obstructive Pulmonary Disease	33
Diabetes	42
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2016 were sleep study, hospital care, inpatient care and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	96
doctor visit	137
hospital care	165
inpatient care	165
pulmonary testing	22
sleep study	201

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	196
Female	209

**Ethnicity**
Non-Hispanic White	350
Black	17
Hispanic	16
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	171
From 75 to 84	94
85 and over	24
Less than 65	116

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2016

Hypertension	70
High Cholesterol	47
Stroke	11
Ischemic Heart Disease	34
Depression	35
Chronic Kidney Disease	45
Asthma	32
Osteoperosis	7
Atrial Fibrilation	23
Heart Failure	36
Chronic Obstructive Pulmonary Disease	29
Diabetes	39
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2017 were sleep study, hospital care, inpatient care and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	96
doctor visit	116
hospital care	184
inpatient care	184
sleep study	188
thoracic (chest) imaging	15
X-rays	15

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	198
Female	159

**Ethnicity**
Non-Hispanic White	305
Black	20
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	76
85 and over	30
Less than 65	104

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2017

Hypertension	73
High Cholesterol	41
Stroke	10
Ischemic Heart Disease	38
Depression	34
Chronic Kidney Disease	46
Asthma	13
Osteoperosis	6
Atrial Fibrilation	21
Heart Failure	37
Chronic Obstructive Pulmonary Disease	31
Diabetes	38
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2018 were sleep study, hospital care, inpatient care and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	73
doctor visit	126
hospital care	100
inpatient care	100
pulmonary testing	25
sleep study	155

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	202
Female	153

**Ethnicity**
Non-Hispanic White	297
Black	18
Hispanic	0
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	143
From 75 to 84	96
85 and over	29
Less than 65	87

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2018

Hypertension	75
High Cholesterol	41
Stroke	8
Ischemic Heart Disease	36
Depression	33
Chronic Kidney Disease	50
Asthma	12
Osteoperosis	4
Atrial Fibrilation	20
Heart Failure	41
Chronic Obstructive Pulmonary Disease	34
Diabetes	37
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2019 were sleep study, hospital care, inpatient care and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	70
doctor visit	125
hospital care	76
inpatient care	76
pulmonary testing	23
sleep study	142

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	174
Female	164

**Ethnicity**
Non-Hispanic White	287
Black	20
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	149
From 75 to 84	81
85 and over	25
Less than 65	83

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2019

Hypertension	69
High Cholesterol	46
Stroke	9
Ischemic Heart Disease	36
Depression	32
Chronic Kidney Disease	46
Asthma	15
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	37
Chronic Obstructive Pulmonary Disease	31
Diabetes	38
Dementia	11
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2020 were hospital care, inpatient care, sleep study and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	44
doctor visit	74
hospital care	167
inpatient care	167
sleep study	108

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	163
Female	128

**Ethnicity**
Non-Hispanic White	243
Black	14
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	131
From 75 to 84	67
85 and over	24
Less than 65	69

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2020

Hypertension	73
High Cholesterol	52
Stroke	12
Ischemic Heart Disease	46
Depression	34
Chronic Kidney Disease	53
Asthma	13
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	38
Chronic Obstructive Pulmonary Disease	29
Diabetes	38
Dementia	13
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2021 were hospital care, inpatient care, sleep study and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	38
doctor visit	80
hospital care	146
inpatient care	146
sleep study	80

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	123
Female	141

**Ethnicity**
Non-Hispanic White	223
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	71
85 and over	16
Less than 65	56

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2021

Hypertension	71
High Cholesterol	55
Stroke	11
Ischemic Heart Disease	41
Depression	33
Chronic Kidney Disease	53
Asthma	14
Osteoperosis	6
Atrial Fibrilation	20
Heart Failure	39
Chronic Obstructive Pulmonary Disease	25
Diabetes	37
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2022 were hospital care, inpatient care, sleep study and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	28
doctor visit	97
hospital care	151
inpatient care	151
pulmonary testing	23
sleep study	103

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	142
Female	144

**Ethnicity**
Non-Hispanic White	251
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	139
From 75 to 84	74
85 and over	25
Less than 65	48

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2022

Hypertension	75
High Cholesterol	64
Stroke	13
Ischemic Heart Disease	26
Depression	34
Chronic Kidney Disease	30
Asthma	17
Osteoperosis	10
Atrial Fibrilation	33
Heart Failure	34
Chronic Obstructive Pulmonary Disease	31
Diabetes	39
Dementia	11
Cancer	21

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2023 were sleep study, airway management, hospital care and inpatient care.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	56
doctor visit	105
hospital care	42
inpatient care	42
sleep study	162

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	147
Female	152

**Ethnicity**
Non-Hispanic White	265
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	160
From 75 to 84	74
85 and over	22
Less than 65	43

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2023

Hypertension	70
High Cholesterol	61
Stroke	13
Ischemic Heart Disease	22
Depression	32
Chronic Kidney Disease	27
Asthma	20
Osteoperosis	12
Atrial Fibrilation	29
Heart Failure	26
Chronic Obstructive Pulmonary Disease	23
Diabetes	29
Dementia	9
Cancer	21

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR during 2024 were sleep study, hospital care, inpatient care and airway management.

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

airway management	38
doctor visit	80
hospital care	97
inpatient care	97
pulmonary testing	23
sleep study	132

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Male	151
Female	148

**Ethnicity**
Non-Hispanic White	261
Black	0
Hispanic	12
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	150
From 75 to 84	64
85 and over	32
Less than 65	53

Conditions of Medicare patients treated by Dr. Michael John Lefor, MD in 2024

Hypertension	75
High Cholesterol	67
Stroke	19
Ischemic Heart Disease	29
Depression	32
Chronic Kidney Disease	29
Asthma	17
Osteoperosis	12
Atrial Fibrilation	31
Heart Failure	30
Chronic Obstructive Pulmonary Disease	27
Diabetes	33
Dementia	8
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Michael John Lefor, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael John Lefor, MD treated as a pulmonologist in Portland, OR were sleep study, hospital care, inpatient care and airway management.

airway management	66
doctor visit	124
hospital care	117
inpatient care	117
preventive care	13
pulmonary testing	29
sleep study	135
thoracic (chest) imaging	15
tracheal (windpipe) procedures	11
vaccines	13
X-rays	15

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Michael John Lefor, MD.

**Gender**
Female	154
Male	164

**Ethnicity**
Black / African American	13
Asian / Pacific Islander	4
Non-Hispanic White	273
Hispanic	5
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	24
75 to 84	74
Less than 65	82
65 to 74	138

Average of Total of Conditions of Medicare patients treated by Dr. Michael John Lefor, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Michael John Lefor, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	65
High Cholesterol	47
Stroke	9
Ischemic Heart Disease	31
Depression	31
Chronic Kidney Disease	37
Asthma	16
Osteoporosis	7
Heart Failure	32
Chronic Obstructive Pulmonary Disease	27
Diabetes	35
Atrial Fibrillation	21
Cancer	12
Dementia	9

Education & Training

Dr. Michael John Lefor, MD graduated from Oregon Health & Science University School of Medicine in 1996. He completed residency at Virginia Mason Medical Center. He is certified by the Board Certification: Sleep Medicine and has a state license in Oregon.

Medical School: Oregon Health & Science University School of Medicine (1996)

Residency: Virginia Mason Medical Center (1999)

Board Certification: Board Certification: Sleep Medicine

Licensed In: Oregon

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Michael John Lefor, MD appears to accept the following insurance providers: First Choice Health, TRICARE Prime, TRICARE For Life, CIGNA PPO, CIGNA Open Access Plus, United Healthcare, Medicaid, Blue Cross/Blue Shield, CHAMPVA, United Healthcare PPO, United Healthcare POS, Providence, Regence, US Family Health Plan, Tricare West, Medicare AB, Aetna PROV Employee POS, Tricare Select, Moda Connexus Network, Age Right Marquis Advantage and Samaritan Health Plan Med Advantage.

Insurance Accepted by Provider includes:

According to our sources, Dr. Michael John Lefor, MD accepts the following insurance providers:

First Choice Health

TRICARE Prime

TRICARE For Life

CIGNA PPO

CIGNA Open Access Plus

United Healthcare

Medicaid

Blue Cross/Blue Shield

CHAMPVA

United Healthcare PPO

United Healthcare POS

Providence

Regence

US Family Health Plan

Tricare West

Medicare AB

Aetna PROV Employee POS

Tricare Select

Moda Connexus Network

Age Right Marquis Advantage

Samaritan Health Plan Med Advantage

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General Payments

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

**Payments by Company**
Resmed Corp	$28 Sleep Disorder Breathing $28
Boehringer Ingelheim Pharmaceuticals, Inc.	$19 OFEV $19
Itamar Medical Inc	$17 WatchPATONE $17

**Types of Payments**
Food and Beverage	$64

Biography

Dr. Michael Lefor's specialties are critical care (intensive care medicine), sleep medicine, and adult pulmonology. He practices in Portland, OR. In his practice, Dr. Lefor focuses on sleep disorders, asthma, and chronic obstructive pulmonary disease (COPD). He is professionally affiliated with Providence Milwaukie Hospital, Providence Portland Medical Center, and The Oregon Clinic. Dr. Lefor graduated from Oregon Health & Science University School of Medicine and then he performed his residency at Virginia Mason Medical Center. Dr. Lefor is an in-network provider for several insurance carriers, including Regence, Blue Cross/Blue Shield, and United Healthcare POS. Distinctions awarded to Dr. Lefor include: “Top Doctors,” and Portland Monthly Magazine. According to Providence, he is currently accepting new patients at his office in Portland, OR.