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Dr. Mary Joan J. O'Neill, MD

(Dr. Mary Joan O'Neill, M.D.)

(No ratings)

Specializes in: Pediatric Emergency Medicine

University of Massachusetts Medical School (1994)

14 Prospect Street
Milford, MA 01757

(508) 422-2240

Dr. Mary Joan J. O'Neill, MD is an emergency medicine doctor in Milford, MA specializing in pediatric emergency medicine. She graduated from University of Massachusetts Medical School in 1994 and has 32 years of experience. Dr. Mary Joan J. O'Neill, MD is affiliated with Milford Regional Medical Center and Boston Children's Hospital.

Office Locations

Milford Regional Medical Center

14 Prospect Street
Milford, MA 01757

(508) 422-2240

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Boston Children's Hospital

300 Longwood Avenue
Boston, MA 02115

(617) 355-6000

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA during 2012 were emergency care.

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

emergency care	275

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA during 2013 were emergency care.

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

emergency care	278

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	132
Female	171

**Ethnicity**
Non-Hispanic White	289
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	77
85 and over	57
Less than 65	92

Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD in 2013

Hypertension	71
High Cholesterol	62
Stroke	9
Ischemic Heart Disease	43
Depression	43
Chronic Kidney Disease	32
Asthma	14
Osteoperosis	10
Atrial Fibrilation	23
Heart Failure	33
Chronic Obstructive Pulmonary Disease	25
Diabetes	37
Dementia	23
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA during 2014 were emergency care.

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

emergency care	212

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	98
Female	140

**Ethnicity**
Non-Hispanic White	225
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	62
From 75 to 84	59
85 and over	44
Less than 65	73

Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD in 2014

Hypertension	73
High Cholesterol	67
Stroke	11
Ischemic Heart Disease	46
Depression	46
Chronic Kidney Disease	35
Asthma	14
Osteoperosis	11
Atrial Fibrilation	26
Heart Failure	30
Chronic Obstructive Pulmonary Disease	24
Diabetes	34
Dementia	22
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA during 2015 were emergency care.

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

emergency care	239

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	238
Female	280

**Ethnicity**
Non-Hispanic White	486
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	132
From 75 to 84	132
85 and over	136
Less than 65	118

Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD in 2015

Hypertension	75
High Cholesterol	63
Stroke	14
Ischemic Heart Disease	51
Depression	45
Chronic Kidney Disease	42
Asthma	18
Osteoperosis	9
Atrial Fibrilation	26
Heart Failure	35
Chronic Obstructive Pulmonary Disease	19
Diabetes	35
Dementia	29
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA during 2016 were emergency care.

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

emergency care	266

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	108
Female	179

**Ethnicity**
Non-Hispanic White	273
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	77
85 and over	61
Less than 65	63

Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD in 2016

Hypertension	75
High Cholesterol	64
Stroke	14
Ischemic Heart Disease	48
Depression	47
Chronic Kidney Disease	46
Asthma	33
Osteoperosis	10
Atrial Fibrilation	24
Heart Failure	33
Chronic Obstructive Pulmonary Disease	26
Diabetes	39
Dementia	29
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA during 2017 were emergency care.

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

emergency care	275

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	113
Female	176

**Ethnicity**
Non-Hispanic White	271
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	76
From 75 to 84	76
85 and over	74
Less than 65	63

Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD in 2017

Hypertension	73
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	43
Depression	36
Chronic Kidney Disease	42
Asthma	12
Osteoperosis	7
Atrial Fibrilation	27
Heart Failure	28
Chronic Obstructive Pulmonary Disease	23
Diabetes	34
Dementia	25
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	134
Female	186

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

**Age**
From 65 to 74	93
From 75 to 84	79
85 and over	69
Less than 65	79

Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD in 2018

Hypertension	74
High Cholesterol	63
Stroke	7
Ischemic Heart Disease	43
Depression	41
Chronic Kidney Disease	42
Asthma	15
Osteoperosis	6
Atrial Fibrilation	21
Heart Failure	33
Chronic Obstructive Pulmonary Disease	30
Diabetes	33
Dementia	21
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA during 2019 were emergency care.

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

emergency care	224

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	106
Female	147

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

**Age**
From 65 to 74	69
From 75 to 84	69
85 and over	56
Less than 65	59

Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD in 2019

Hypertension	75
High Cholesterol	70
Stroke	11
Ischemic Heart Disease	47
Depression	43
Chronic Kidney Disease	54
Asthma	9
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	32
Chronic Obstructive Pulmonary Disease	33
Diabetes	32
Dementia	23
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA during 2020 were emergency care, outpatient care and hospital care.

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

emergency care	182
hospital care	16
outpatient care	16

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	90
Female	126

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

**Age**
From 65 to 74	71
From 75 to 84	59
85 and over	43
Less than 65	43

Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD in 2020

Hypertension	74
High Cholesterol	66
Stroke	8
Ischemic Heart Disease	46
Depression	45
Chronic Kidney Disease	54
Asthma	11
Osteoperosis	13
Atrial Fibrilation	19
Heart Failure	38
Chronic Obstructive Pulmonary Disease	24
Diabetes	37
Dementia	24
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA during 2021 were emergency care.

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

emergency care	242

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	113
Female	153

**Ethnicity**
Non-Hispanic White	255
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	63
From 75 to 84	93
85 and over	57
Less than 65	53

Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD in 2021

Hypertension	75
High Cholesterol	71
Stroke	11
Ischemic Heart Disease	40
Depression	46
Chronic Kidney Disease	53
Asthma	10
Osteoperosis	11
Atrial Fibrilation	26
Heart Failure	35
Chronic Obstructive Pulmonary Disease	17
Diabetes	35
Dementia	27
Cancer	17

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA during 2022 were emergency care.

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

emergency care	242

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	109
Female	169

**Ethnicity**
Non-Hispanic White	255
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	93
85 and over	69
Less than 65	36

Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	22
Ischemic Heart Disease	31
Depression	42
Chronic Kidney Disease	35
Asthma	12
Osteoperosis	15
Atrial Fibrilation	29
Heart Failure	30
Chronic Obstructive Pulmonary Disease	24
Diabetes	39
Dementia	22
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mary Joan J. O'Neill, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mary Joan J. O'Neill, MD treated as an emergency medicine doctor in Milford, MA were emergency care, hospital care and outpatient care.

emergency care	243
hospital care	16
outpatient care	16

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mary Joan J. O'Neill, MD.

**Gender**
Male	112
Female	157

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	253
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	74
85 and over	60
Less than 65	61
65 to 74	73

Average of Total of Conditions of Medicare patients treated by Dr. Mary Joan J. O'Neill, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Mary Joan J. O'Neill, MD treated were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	67
High Cholesterol	59
Stroke	10
Ischemic Heart Disease	39
Depression	39
Chronic Kidney Disease	39
Asthma	13
Osteoporosis	9
Heart Failure	29
Chronic Obstructive Pulmonary Disease	22
Diabetes	32
Atrial Fibrillation	22
Dementia	22
Cancer	13

Education & Training

Dr. Mary Joan J. O'Neill, MD graduated from University of Massachusetts Medical School in 1994. She completed residency at UMass Memorial Medical Center. She is certified by the Board Certification: Emergency Medicine and has a state license in Massachusetts.

Medical School: University of Massachusetts Medical School (1994)

Residency: UMass Memorial Medical Center

Board Certification: Board Certification: Emergency Medicine

Licensed In: Massachusetts

Affiliations & Hospitals

Dr. Mary Joan J. O'Neill, MD is associated with these hospitals and organizations:

Milford Regional Medical Center

Boston Children's Hospital

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Biography

Dr. Mary O'Neill is a pediatric emergency medicine specialist. She attended the University of Massachusetts Medical School and subsequently trained at UMass Memorial Medical Center for residency. Dr. O'Neill is affiliated with Boston Children's Hospital and Milford Regional Medical Center.