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Dr. Mary Jo Johnstone, MD

(Dr. Mary Jo Johnstone, M.D.)

(No ratings)

Specializes in: Emergency Medicine

259 1st Street
Mineola, NY 11501

(516) 663-2211

Dr. Mary Jo Johnstone, MD is an emergency medicine doctor in Mineola, NY specializing in emergency medicine. Dr. Mary Jo Johnstone, MD is affiliated with NYU Langone Health.

Office Locations

NYU Langone Health

259 1st Street
Mineola, NY 11501

(516) 663-2211

(516) 663-8549

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Noteworthy Medicare Patient Procedures Performed by Dr. Mary Jo Johnstone, MD in 2023

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

Top 25%

By Volume:

emergency room care

In 2012, Dr. Mary Jo Johnstone, MD performed more emergency room (ER) care procedures for Medicare patients than 75% of providers in related specialties within New York.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2012 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	262

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2013 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	639

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	246
Female	379

**Ethnicity**
Non-Hispanic White	502
Black	84
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	127
From 75 to 84	206
85 and over	224
Less than 65	68

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2013

Hypertension	75
High Cholesterol	69
Stroke	19
Ischemic Heart Disease	70
Depression	31
Chronic Kidney Disease	40
Asthma	14
Osteoperosis	13
Atrial Fibrilation	28
Heart Failure	51
Chronic Obstructive Pulmonary Disease	28
Diabetes	48
Dementia	30
Cancer	24

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2014 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	644

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	284
Female	353

**Ethnicity**
Non-Hispanic White	499
Black	89
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	191
85 and over	234
Less than 65	65

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2014

Hypertension	75
High Cholesterol	73
Stroke	14
Ischemic Heart Disease	69
Depression	27
Chronic Kidney Disease	43
Asthma	12
Osteoperosis	15
Atrial Fibrilation	29
Heart Failure	52
Chronic Obstructive Pulmonary Disease	25
Diabetes	51
Dementia	28
Cancer	18

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2015 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	447

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	370
Female	514

**Ethnicity**
Non-Hispanic White	676
Black	120
Hispanic	56
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	250
85 and over	312
Less than 65	106

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2015

Hypertension	75
High Cholesterol	74
Stroke	15
Ischemic Heart Disease	70
Depression	36
Chronic Kidney Disease	45
Asthma	21
Osteoperosis	12
Atrial Fibrilation	29
Heart Failure	52
Chronic Obstructive Pulmonary Disease	28
Diabetes	53
Dementia	31
Cancer	22

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2016 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	388

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	147
Female	247

**Ethnicity**
Non-Hispanic White	291
Black	68
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	95
From 75 to 84	136
85 and over	115
Less than 65	48

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2016

Hypertension	75
High Cholesterol	74
Stroke	16
Ischemic Heart Disease	61
Depression	31
Chronic Kidney Disease	50
Asthma	33
Osteoperosis	13
Atrial Fibrilation	26
Heart Failure	47
Chronic Obstructive Pulmonary Disease	25
Diabetes	54
Dementia	31
Cancer	21

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2017 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	321

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	144
Female	185

**Ethnicity**
Non-Hispanic White	253
Black	46
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	100
From 75 to 84	105
85 and over	90
Less than 65	34

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	64
Depression	38
Chronic Kidney Disease	53
Asthma	13
Osteoperosis	14
Atrial Fibrilation	26
Heart Failure	49
Chronic Obstructive Pulmonary Disease	27
Diabetes	56
Dementia	34
Cancer	20

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2018 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	373

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	171
Female	218

**Ethnicity**
Non-Hispanic White	303
Black	46
Hispanic	18
Asian	11
Other	11
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	110
85 and over	130
Less than 65	33

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	65
Depression	36
Chronic Kidney Disease	53
Asthma	10
Osteoperosis	14
Atrial Fibrilation	29
Heart Failure	48
Chronic Obstructive Pulmonary Disease	31
Diabetes	51
Dementia	36
Cancer	24

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2019 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	384

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	165
Female	219

**Ethnicity**
Non-Hispanic White	291
Black	51
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	124
85 and over	120
Less than 65	41

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	59
Depression	36
Chronic Kidney Disease	51
Asthma	11
Osteoperosis	11
Atrial Fibrilation	28
Heart Failure	45
Chronic Obstructive Pulmonary Disease	24
Diabetes	45
Dementia	33
Cancer	18

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2020 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	393

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	173
Female	222

**Ethnicity**
Non-Hispanic White	296
Black	53
Hispanic	18
Asian	11
Other	17
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	114
85 and over	110
Less than 65	48

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	71
Depression	34
Chronic Kidney Disease	57
Asthma	14
Osteoperosis	15
Atrial Fibrilation	26
Heart Failure	43
Chronic Obstructive Pulmonary Disease	22
Diabetes	48
Dementia	30
Cancer	20

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2021 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	496

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	209
Female	280

**Ethnicity**
Non-Hispanic White	357
Black	72
Hispanic	29
Asian	12
Other	19
Native American	0

**Age**
From 65 to 74	163
From 75 to 84	150
85 and over	131
Less than 65	45

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	67
Depression	29
Chronic Kidney Disease	58
Asthma	13
Osteoperosis	17
Atrial Fibrilation	25
Heart Failure	38
Chronic Obstructive Pulmonary Disease	19
Diabetes	44
Dementia	29
Cancer	20

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2022 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	368

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	159
Female	211

**Ethnicity**
Non-Hispanic White	282
Black	42
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	111
From 75 to 84	125
85 and over	103
Less than 65	31

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	26
Ischemic Heart Disease	50
Depression	31
Chronic Kidney Disease	53
Asthma	16
Osteoperosis	17
Atrial Fibrilation	37
Heart Failure	39
Chronic Obstructive Pulmonary Disease	28
Diabetes	42
Dementia	30
Cancer	24

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY during 2023 were emergency care.

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

emergency care	334

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	153
Female	185

**Ethnicity**
Non-Hispanic White	265
Black	44
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	117
From 75 to 84	111
85 and over	89
Less than 65	21

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	28
Ischemic Heart Disease	50
Depression	28
Chronic Kidney Disease	44
Asthma	14
Osteoperosis	19
Atrial Fibrilation	30
Heart Failure	33
Chronic Obstructive Pulmonary Disease	32
Diabetes	47
Dementia	22
Cancer	24

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Mary Jo Johnstone, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mary Jo Johnstone, MD treated as an emergency medicine doctor in Mineola, NY were emergency care.

emergency care	420

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Mary Jo Johnstone, MD.

**Gender**
Male	185
Female	251

**Ethnicity**
Black / African American	59
Asian / Pacific Islander	2
Non-Hispanic White	334
Hispanic	21
Native American / Alaskan Native	0
Other	4

**Age**
75 to 84	135
85 and over	138
Less than 65	45
65 to 74	117

Average of Total of Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Mary Jo Johnstone, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	68
High Cholesterol	67
Stroke	16
Ischemic Heart Disease	58
Depression	29
Chronic Kidney Disease	45
Asthma	14
Osteoporosis	13
Heart Failure	41
Chronic Obstructive Pulmonary Disease	24
Diabetes	44
Atrial Fibrillation	26
Cancer	19
Dementia	27

Education & Training

She completed residency at The Brooklyn Hospital Center. She is certified by the American Board of Emergency Medicine - Emergency Medicine and has a state license in New York.

Residency: The Brooklyn Hospital Center (2012)

Board Certification: American Board of Emergency Medicine - Emergency Medicine (2013)

Licensed In: New York

Affiliations & Hospitals

Dr. Mary Jo Johnstone, MD is associated with these hospitals and organizations:

NYU Langone Health

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. Mary Jo Johnstone, MD appears to accept the following insurance providers: GHI HMO, Oscar, Aetna Medicare, CIGNA PPO, PHCS PPO, WellCare Medicare, EmblemHealth, Local 1199 PPO, Elderplan, GHI CBP, United Healthcare PPO, United Healthcare POS, United Healthcare HMO, United Healthcare EPO, Railroad Medicare, Aetna Indemnity, Aetna POS, Oxford Liberty, United Healthcare, HIP Child Health, HIP Access II, HIP Access I, Medicare, Medicaid, Oxford Freedom, Humana, Fidelis Medicaid, Cigna, Fidelis Care, TRICARE, HIP PPO, HIP POS, Healthfirst, HIP Medicaid, HIP HMO, MagnaCare PPO, HIP Medicare, Empire BlueCross BlueShield PPO, MetroPlus Medicare, Oxford Medicare Advantage, Empire BlueCross BlueShield, MetroPlus Medicaid, MetroPlus Health, Aetna HMO, Oxford Mosaic, Hotel Trades, The Empire Plan, Longevity Health Plan Medicare, US Department of Labor, Village Caremax, Senior Whole Health, Aetna PPO/EPO, Visiting Nurse Service (VNS) Medicare, Oxford Metro, Amidacare, Centerlight, WTC Health Program and Hamaspik Choice Medicare DSNP.

Insurance Accepted by Provider includes:

According to our sources, Dr. Mary Jo Johnstone, MD accepts the following insurance providers:

GHI HMO

Oscar

Aetna Medicare

CIGNA PPO

PHCS PPO

WellCare Medicare

EmblemHealth

Local 1199 PPO

Elderplan

GHI CBP

United Healthcare PPO

United Healthcare POS

United Healthcare HMO

United Healthcare EPO

Railroad Medicare

Aetna Indemnity

Aetna POS

Oxford Liberty

United Healthcare

HIP Child Health

HIP Access II

HIP Access I

Medicare

Medicaid

Oxford Freedom

Humana

Fidelis Medicaid

Cigna

Fidelis Care

TRICARE

HIP PPO

HIP POS

Healthfirst

HIP Medicaid

HIP HMO

MagnaCare PPO

HIP Medicare

Empire BlueCross BlueShield PPO

MetroPlus Medicare

Oxford Medicare Advantage

Empire BlueCross BlueShield

MetroPlus Medicaid

MetroPlus Health

Aetna HMO

Oxford Mosaic

Hotel Trades

The Empire Plan

Longevity Health Plan Medicare

US Department of Labor

Village Caremax

Senior Whole Health

Aetna PPO/EPO

Visiting Nurse Service (VNS) Medicare

Oxford Metro

Amidacare

Centerlight

WTC Health Program

Hamaspik Choice Medicare DSNP

Ratings & Reviews

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General Payments

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

**Payments by Company**
Merck Sharp & Dohme Corporation	$76 BRIDION $76

**Types of Payments**
Food and Beverage	$76

Biography

Dr. Mary Jo Johnstone is a medical specialist in emergency medicine. She speaks French. Dr. Johnstone is affiliated with NYU Langone Health. She completed her residency training at The Brooklyn Hospital Center. She appears to be in-network for Blue California, Healthfirst, and TRICARE, in addition to other insurance carriers.

Select Year:

Dr. Mary Jo Johnstone, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Mary Jo Johnstone, MD in 2023

By Volume:

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. Mary Jo Johnstone, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Mary Jo Johnstone, MD From 2012 - 2023

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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