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Dr. Margaret M. Johnson, MD

(Dr. Margaret Johnson, MD)

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

Thomas Jefferson University, Jefferson Medical College

Professional interests include: asthma, lung cancer, bronchoscopy, and more.

4500 San Pablo Road S
Jacksonville, FL 32224

(904) 953-2000

Dr. Margaret M. Johnson, MD is a pulmonologist in Jacksonville, FL specializing in adult pulmonology and critical care (intensive care medicine). She graduated from Thomas Jefferson University, Jefferson Medical College. Dr. Margaret M. Johnson, MD is affiliated with Mayo Clinic.

Office Locations

4500 San Pablo Road S
Jacksonville, FL 32224

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Jacksonville, FL

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Some issues Dr. Margaret M. Johnson, 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.

Bronchoscopy

Bronchoscopy is a procedure in which a thin tube with a camera, called a bronchoscope, is inserted in the mouth or nose and slowly advanced to the lungs. This allows doctors to see the respiratory tract, which includes the throat, larynx (voice box), trachea (windpipe), bronchi (airways), and lungs. Doctors may recommend those who have or show signs of lung problems - for example, lung cancer or difficulty breathing - to undergo a bronchoscopy.

In performing a diagnostic bronchoscopy, doctors may only wish to visualize the respiratory tract, or doctors may also collect samples of tissue or fluid. The samples can help diagnose patients' conditions or, if patients have cancer, they can be used for staging purposes. One method for sample collection is bronchoalveolar lavage. In a bronchoalveolar lavage, doctors inject saline (salt water) through the bronchoscope and then suction it out of the airways. The washout collected is tested for lung disorders. Doctors can also insert a biopsy tool to collect tissue or mucus samples. The following are biopsies that can be performed by bronchoscopy:

Brush biopsy, which uses a brush to collect samples.
Endobronchial biopsy, which uses the bronchoscope to guide forceps to sample lung tissue.
Transbronchial biopsy, which uses forceps and image guidance - such as X-rays, CT scans, or fluoroscopy - to sample lung tissue.
Transbronchial fine needle aspiration (TBNA), which uses a small needle to take samples of the lymph nodes or lungs.

For visualization, bronchoscopy can be done alone, or it can be combined with ultrasound. Endobronchial ultrasound (EBUS) allows real-time imaging of the airway and is used for diagnosing and staging lung cancer, as well as for determining where the cancer has spread. EBUS can be performed with TBNA, a procedure known as endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA).

Doctors can also use bronchoscopy as a treatment for lung problems. For example, if a foreign body is trapped in the airway, doctors can insert forceps through the bronchoscope to remove it. If the airway has become narrowed - which may occur if patients have an infection, cancer, or some other inflammatory issue - bronchoscopy can be used to place a device called a stent in the area of constriction. The stent will keep the airway open, allowing the patient to breathe properly.

During a bronchoscopy, patients will be given medication (sedative) to help them relax. If it is only a diagnostic bronchoscopy, patients will be kept awake, but if the bronchoscopy is for therapeutic purposes, patients will be put to sleep by general anesthesia. After the procedure, patients will need to stay in the hospital for a few hours. They will not be able to eat or drink for about 2 hours. Some patients may experience discomfort, such as a sore throat or pain while swallowing. Throat lozenges and gargling may help alleviate these symptoms, which should go away after a few days. Patients will need to have someone drive them home once their doctor determines that they are ready.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2012 were hospital care, inpatient care and pulmonary testing.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

doctor visit	269
hospital care	114
inpatient care	114
pulmonary testing	48

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2013 were pulmonary testing, hospital care, inpatient care and bronchoscopy.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

aspiration	19
blood draw	41
breathing treatment	20
bronchoscopy	56
diagnostic procedures	19
doctor visit	295
hospital care	193
inpatient care	193
minimally invasive procedures	30
minor procedures	19
pulmonary testing	647

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	339
Female	355

**Ethnicity**
Non-Hispanic White	613
Black	44
Hispanic	0
Asian	15
Other	0
Native American	0

**Age**
From 65 to 74	319
From 75 to 84	227
85 and over	63
Less than 65	85

Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD in 2013

Hypertension	73
High Cholesterol	63
Stroke	8
Ischemic Heart Disease	62
Depression	23
Chronic Kidney Disease	36
Asthma	17
Osteoperosis	13
Atrial Fibrilation	22
Heart Failure	32
Chronic Obstructive Pulmonary Disease	48
Diabetes	33
Dementia	7
Cancer	18

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2014 were pulmonary testing, hospital care, inpatient care and bronchoscopy.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

aspiration	16
blood draw	43
breathing treatment	11
bronchoscopy	56
diagnostic procedures	16
doctor visit	295
hospital care	149
inpatient care	149
minimally invasive procedures	29
minor procedures	16
pulmonary testing	566

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	328
Female	362

**Ethnicity**
Non-Hispanic White	602
Black	57
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	316
From 75 to 84	209
85 and over	64
Less than 65	101

Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD in 2014

Hypertension	72
High Cholesterol	59
Stroke	6
Ischemic Heart Disease	58
Depression	24
Chronic Kidney Disease	36
Asthma	19
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	30
Chronic Obstructive Pulmonary Disease	48
Diabetes	30
Dementia	6
Cancer	18

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2015 were pulmonary testing, bronchoscopy, hospital care and inpatient care.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

aspiration	22
blood draw	23
breathing treatment	13
bronchoscopy	93
diagnostic procedures	22
doctor visit	318
hospital care	80
inpatient care	80
minimally invasive procedures	57
minor procedures	22
pulmonary testing	306

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	528
Female	582

**Ethnicity**
Non-Hispanic White	986
Black	86
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	472
From 75 to 84	380
85 and over	114
Less than 65	144

Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD in 2015

Hypertension	68
High Cholesterol	57
Stroke	7
Ischemic Heart Disease	56
Depression	25
Chronic Kidney Disease	39
Asthma	30
Osteoperosis	12
Atrial Fibrilation	20
Heart Failure	30
Chronic Obstructive Pulmonary Disease	53
Diabetes	31
Dementia	9
Cancer	23

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2016 were hospital care, inpatient care, pulmonary testing and bronchoscopy.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

bronchoscopy	89
doctor visit	381
hospital care	162
inpatient care	162
minimally invasive procedures	46
pulmonary testing	123

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	252
Female	254

**Ethnicity**
Non-Hispanic White	456
Black	23
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	230
From 75 to 84	176
85 and over	59
Less than 65	41

Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD in 2016

Hypertension	72
High Cholesterol	59
Stroke	6
Ischemic Heart Disease	56
Depression	22
Chronic Kidney Disease	43
Asthma	48
Osteoperosis	8
Atrial Fibrilation	25
Heart Failure	33
Chronic Obstructive Pulmonary Disease	55
Diabetes	30
Dementia	10
Cancer	25

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2017 were pulmonary testing, hospital care, inpatient care and bronchoscopy.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

blood draw	18
breathing treatment	21
bronchoscopy	55
doctor visit	439
hospital care	145
inpatient care	145
minimally invasive procedures	25
pulmonary testing	271

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	289
Female	319

**Ethnicity**
Non-Hispanic White	530
Black	40
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	259
From 75 to 84	200
85 and over	74
Less than 65	75

Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD in 2017

Hypertension	74
High Cholesterol	59
Stroke	6
Ischemic Heart Disease	59
Depression	23
Chronic Kidney Disease	41
Asthma	15
Osteoperosis	9
Atrial Fibrilation	23
Heart Failure	33
Chronic Obstructive Pulmonary Disease	50
Diabetes	32
Dementia	11
Cancer	24

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2018 were pulmonary testing, hospital care, inpatient care and bronchoscopy.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

blood draw	14
breathing treatment	20
bronchoscopy	53
doctor visit	411
hospital care	139
inpatient care	139
minimally invasive procedures	18
pulmonary testing	464

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	308
Female	403

**Ethnicity**
Non-Hispanic White	637
Black	36
Hispanic	14
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	339
From 75 to 84	243
85 and over	69
Less than 65	60

Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD in 2018

Hypertension	71
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	56
Depression	26
Chronic Kidney Disease	40
Asthma	15
Osteoperosis	13
Atrial Fibrilation	19
Heart Failure	32
Chronic Obstructive Pulmonary Disease	50
Diabetes	32
Dementia	10
Cancer	21

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2019 were pulmonary testing, hospital care, inpatient care and breathing treatment.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

breathing treatment	36
bronchoscopy	30
doctor visit	448
hospital care	102
inpatient care	102
pulmonary testing	514

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	331
Female	402

**Ethnicity**
Non-Hispanic White	642
Black	43
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	376
From 75 to 84	223
85 and over	55
Less than 65	79

Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD in 2019

Hypertension	72
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	52
Depression	25
Chronic Kidney Disease	42
Asthma	17
Osteoperosis	14
Atrial Fibrilation	18
Heart Failure	34
Chronic Obstructive Pulmonary Disease	52
Diabetes	30
Dementia	11
Cancer	20

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2020 were pulmonary testing, hospital care, inpatient care and breathing treatment.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

breathing treatment	30
bronchoscopy	17
doctor visit	554
hospital care	80
inpatient care	80
pulmonary testing	203

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	234
Female	328

**Ethnicity**
Non-Hispanic White	492
Black	36
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	267
From 75 to 84	181
85 and over	43
Less than 65	71

Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD in 2020

Hypertension	64
High Cholesterol	60
Stroke	4
Ischemic Heart Disease	44
Depression	22
Chronic Kidney Disease	37
Asthma	17
Osteoperosis	17
Atrial Fibrilation	15
Heart Failure	31
Chronic Obstructive Pulmonary Disease	50
Diabetes	25
Dementia	9
Cancer	22

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2021 were hospital care, inpatient care, pulmonary testing and breathing treatment.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

breathing treatment	38
bronchoscopy	24
doctor visit	653
hospital care	232
inpatient care	232
pulmonary testing	184

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	239
Female	373

**Ethnicity**
Non-Hispanic White	545
Black	30
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	283
From 75 to 84	217
85 and over	44
Less than 65	68

Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD in 2021

Hypertension	66
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	46
Depression	26
Chronic Kidney Disease	42
Asthma	17
Osteoperosis	23
Atrial Fibrilation	17
Heart Failure	33
Chronic Obstructive Pulmonary Disease	47
Diabetes	25
Dementia	13
Cancer	20

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL during 2022 were pulmonary testing, breathing treatment, hospital care and inpatient care.

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

breathing treatment	72
doctor visit	659
hospital care	63
inpatient care	63
pulmonary testing	366

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	272
Female	423

**Ethnicity**
Non-Hispanic White	616
Black	26
Hispanic	17
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	332
From 75 to 84	252
85 and over	51
Less than 65	60

Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD in 2022

Hypertension	74
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	38
Depression	23
Chronic Kidney Disease	30
Asthma	22
Osteoperosis	25
Atrial Fibrilation	24
Heart Failure	27
Chronic Obstructive Pulmonary Disease	56
Diabetes	27
Dementia	4
Cancer	26

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Margaret M. Johnson, MD for Medicare patients.

The highest averages for the top procedures that Dr. Margaret M. Johnson, MD treated as a pulmonologist in Jacksonville, FL were pulmonary testing, hospital care, inpatient care and bronchoscopy.

aspiration	19
blood draw	27
bronchoscopy	52
diagnostic procedures	19
doctor visit	429
hospital care	132
inpatient care	132
minimally invasive procedures	34
minor procedures	19
pulmonary testing	335

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Margaret M. Johnson, MD.

**Gender**
Male	283
Female	345

**Ethnicity**
Black / African American	38
Asian / Pacific Islander	1
Non-Hispanic White	556
Native American / Alaskan Native	0
Hispanic	10
Other	4

**Age**
75 to 84	209
85 and over	57
Less than 65	71
65 to 74	290

Average of Total of Conditions of Medicare patients treated by Dr. Margaret M. Johnson, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Margaret M. Johnson, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic obstructive pulmonary disease.

Hypertension	64
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	47
Depression	21
Chronic Kidney Disease	35
Asthma	19
Osteoporosis	13
Heart Failure	28
Chronic Obstructive Pulmonary Disease	46
Diabetes	26
Atrial Fibrillation	18
Dementia	8
Cancer	19

Education & Training

Dr. Margaret M. Johnson, MD graduated from Thomas Jefferson University, Jefferson Medical College. She completed residency at Jefferson University Hospitals. She is certified by the Pulmonary Disease American Board of Internal Medicine and has a state license in Florida.

Medical School: Thomas Jefferson University, Jefferson Medical College

Residency: Jefferson University Hospitals (1993)

Board Certification: Pulmonary Disease American Board of Internal Medicine (1996)

Licensed In: Florida

Affiliations & Hospitals

Dr. Margaret M. Johnson, MD is associated with these hospitals and organizations:

Mayo Clinic

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General Payments

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

**Payments by Company**
Bayer HealthCare Pharmaceuticals Inc.	$13,698 Cipro $13,698
Paratek Pharmaceuticals, Inc.	$1,360 NUZYRA $1,360
Cipla USA Inc.	$500 2 $500
Intuitive Surgical, Inc.	$127 Da Vinci Surgical System $127
Boehringer Ingelheim Pharmaceuticals, Inc.	$54 $54
Other	$55 NON-PRODUCT $29	Arikayce $26

**Types of Payments**
Consulting Fee	$15,558
Food and Beverage	$207
Education	$29

Research Payments

Dr. Margaret M. Johnson, MD has received 86 research payments totaling $363,753.

Biography

Dr. Margaret Johnson is a critical care (intensive care medicine) and adult pulmonology specialist. Clinical interests for Dr. Johnson include lung cancer, cystic fibrosis (CF), and bronchoscopy. She graduated from Thomas Jefferson University, Jefferson Medical College. For her residency, Dr. Johnson trained at Jefferson University Hospitals. She has received distinctions including Jacksonville Magazine "Top Doc" - Jacksonville Magazine: Top Doctor First Coast Physician Edition; Five year Top Performer Patient Experience Award - Mayo Clinic Patient Experience; and Top Doctor Jacksonville Magazine. She is professionally affiliated with Mayo Clinic.