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Dr. Janet O'Mahony, MD

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(Janet O'Mahony, M.D.)

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Specializes in: Physician, Dermatology (Skin Disorders) and Primary Care

University of Maryland School of Medicine

301 St. Paul Place
Baltimore, MD 21202

(410) 951-7920

Dr. Janet O'Mahony, MD is a physician provider in Baltimore, MD specializing in physician, dermatology (skin disorders) and primary care. She graduated from University of Maryland School of Medicine. Dr. Janet O'Mahony, MD is affiliated with Mercy Hospital and Mercy Personal Physicians Downtown.

Office Locations

301 St. Paul Place
Baltimore, MD 21202

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2012 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

diabetes management	21
doctor visit	820
lab tests	21
preventive care	115
vaccines	115

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2013 were preventive care and vaccines.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

doctor visit	867
preventive care	121
vaccines	121

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	32
Female	239

**Ethnicity**
Non-Hispanic White	0
Black	143
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	81
85 and over	30
Less than 65	35

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2013

Hypertension	75
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	20
Depression	15
Chronic Kidney Disease	14
Asthma	5
Osteoperosis	0
Atrial Fibrilation	6
Heart Failure	13
Chronic Obstructive Pulmonary Disease	6
Diabetes	37
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2014 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

doctor visit	920
lab tests	14
preventive care	152
vaccines	152

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	38
Female	245

**Ethnicity**
Non-Hispanic White	0
Black	155
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	143
From 75 to 84	73
85 and over	35
Less than 65	32

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2014

Hypertension	71
High Cholesterol	45
Stroke	5
Ischemic Heart Disease	17
Depression	18
Chronic Kidney Disease	11
Asthma	8
Osteoperosis	4
Atrial Fibrilation	6
Heart Failure	8
Chronic Obstructive Pulmonary Disease	10
Diabetes	34
Dementia	7
Cancer	17

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2015 were preventive care, vaccines and ear procedures.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

doctor visit	1016
ear procedures	12
preventive care	239
vaccines	239

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	94
Female	556

**Ethnicity**
Non-Hispanic White	272
Black	356
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	346
From 75 to 84	162
85 and over	74
Less than 65	68

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2015

Hypertension	72
High Cholesterol	48
Stroke	6
Ischemic Heart Disease	20
Depression	21
Chronic Kidney Disease	16
Asthma	10
Osteoperosis	0
Atrial Fibrilation	6
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	34
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2016 were preventive care and vaccines.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

doctor visit	1036
preventive care	172
vaccines	172

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	48
Female	282

**Ethnicity**
Non-Hispanic White	0
Black	186
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	170
From 75 to 84	92
85 and over	31
Less than 65	37

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2016

Hypertension	69
High Cholesterol	42
Stroke	4
Ischemic Heart Disease	18
Depression	16
Chronic Kidney Disease	18
Asthma	13
Osteoperosis	0
Atrial Fibrilation	4
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	33
Dementia	5
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2017 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

diabetes management	17
doctor visit	928
lab tests	17
preventive care	141
vaccines	141

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	51
Female	267

**Ethnicity**
Non-Hispanic White	0
Black	180
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	164
From 75 to 84	88
85 and over	33
Less than 65	33

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2017

Hypertension	72
High Cholesterol	20
Stroke	5
Ischemic Heart Disease	19
Depression	19
Chronic Kidney Disease	19
Asthma	8
Osteoperosis	4
Atrial Fibrilation	5
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	32
Dementia	7
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2018 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

diabetes management	20
doctor visit	1030
lab tests	20
preventive care	126
vaccines	126

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	44
Female	284

**Ethnicity**
Non-Hispanic White	0
Black	177
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	160
From 75 to 84	102
85 and over	33
Less than 65	33

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2018

Hypertension	70
High Cholesterol	50
Stroke	5
Ischemic Heart Disease	21
Depression	17
Chronic Kidney Disease	19
Asthma	6
Osteoperosis	4
Atrial Fibrilation	7
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	29
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2019 were preventive care and vaccines.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

doctor visit	984
preventive care	144
vaccines	144

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	42
Female	270

**Ethnicity**
Non-Hispanic White	0
Black	171
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	155
From 75 to 84	96
85 and over	32
Less than 65	29

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2019

Hypertension	72
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	18
Depression	17
Chronic Kidney Disease	21
Asthma	8
Osteoperosis	0
Atrial Fibrilation	5
Heart Failure	8
Chronic Obstructive Pulmonary Disease	10
Diabetes	32
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2020 were preventive care and vaccines.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

doctor visit	709
preventive care	87
vaccines	76

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	39
Female	260

**Ethnicity**
Non-Hispanic White	0
Black	165
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	149
From 75 to 84	91
85 and over	31
Less than 65	28

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2020

Hypertension	63
High Cholesterol	43
Stroke	5
Ischemic Heart Disease	15
Depression	15
Chronic Kidney Disease	19
Asthma	6
Osteoperosis	4
Atrial Fibrilation	5
Heart Failure	7
Chronic Obstructive Pulmonary Disease	10
Diabetes	31
Dementia	5
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2021 were preventive care and vaccines.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

doctor visit	657
preventive care	88
vaccines	76

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	34
Female	230

**Ethnicity**
Non-Hispanic White	0
Black	133
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	129
From 75 to 84	86
85 and over	28
Less than 65	21

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2021

Hypertension	63
High Cholesterol	48
Stroke	6
Ischemic Heart Disease	20
Depression	19
Chronic Kidney Disease	20
Asthma	6
Osteoperosis	6
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2022 were preventive care and vaccines.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

doctor visit	741
preventive care	43
vaccines	43

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	38
Female	218

**Ethnicity**
Non-Hispanic White	0
Black	126
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	124
From 75 to 84	82
85 and over	28
Less than 65	22

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2022

Hypertension	73
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	13
Depression	17
Chronic Kidney Disease	9
Asthma	11
Osteoperosis	13
Atrial Fibrilation	7
Heart Failure	0
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	6
Cancer	21

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2023 were preventive care and cardiac procedures.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

cardiac procedures	14
doctor visit	823
preventive care	32

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	42
Female	222

**Ethnicity**
Non-Hispanic White	128
Black	125
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	92
85 and over	32
Less than 65	20

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2023

Hypertension	73
High Cholesterol	67
Stroke	8
Ischemic Heart Disease	11
Depression	18
Chronic Kidney Disease	13
Asthma	13
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	6
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Dementia	4
Cancer	20

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD during 2024 were preventive care and vaccines.

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

doctor visit	809
preventive care	73
vaccines	73

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Male	42
Female	226

**Ethnicity**
Non-Hispanic White	137
Black	119
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	93
85 and over	32
Less than 65	22

Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD in 2024

Hypertension	74
High Cholesterol	67
Stroke	7
Ischemic Heart Disease	13
Depression	22
Chronic Kidney Disease	12
Asthma	14
Osteoperosis	15
Atrial Fibrilation	8
Heart Failure	0
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	4
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Janet O'Mahony, MD for Medicare patients.

The highest averages for the top procedures that Dr. Janet O'Mahony, MD treated as a physician provider in Baltimore, MD were vaccines, preventive care, diabetes management and lab tests.

cardiac procedures	14
diabetes management	19
doctor visit	872
ear procedures	12
lab tests	18
preventive care	117
vaccines	123

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Janet O'Mahony, MD.

**Gender**
Female	253
Male	41

**Ethnicity**
Black / African American	156
Asian / Pacific Islander	0
Non-Hispanic White	41
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	32
75 to 84	87
Less than 65	29
65 to 74	146

Average of Total of Conditions of Medicare patients treated by Dr. Janet O'Mahony, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Janet O'Mahony, MD treated were hypertension, high cholesterol, diabetes and depression.

Hypertension	65
High Cholesterol	45
Stroke	4
Ischemic Heart Disease	15
Depression	16
Chronic Kidney Disease	14
Asthma	8
Osteoporosis	4
Heart Failure	6
Chronic Obstructive Pulmonary Disease	8
Diabetes	28
Atrial Fibrillation	5
Cancer	14
Dementia	5

Education & Training

Dr. Janet O'Mahony, MD graduated from University of Maryland School of Medicine. She completed residency at University of Maryland Medical Center. She has a state license in Maryland.

Medical School: University of Maryland School of Medicine

Residency: University of Maryland Medical Center

Licensed In: Maryland

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General Payments

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

**Payments by Company**
Novo Nordisk Inc	$2,963 Victoza $716	Ozempic $524	RYBELSUS $439	Tresiba $390	NovoLog $237	Other $657
AstraZeneca Pharmaceuticals LP	$2,503 FARXIGA $1,463	BREZTRI $373	SYMBICORT $195	BYDUREON WEEKLY $134	BEVESPI AEROSPHERE $114	Other $225
Lilly USA, LLC	$2,114 BASAGLAR $656	JARDIANCE $469	MOUNJARO $336	TRULICITY $240	ZEPBOUND $180	Other $232
GlaxoSmithKline, LLC.	$1,520 TRELEGY ELLIPTA $683	ANORO $346	BREO $255	SHINGRIX $75	TANZEUM $53	Other $107
Pfizer Inc.	$1,008 LYRICA $202	NURTEC ODT $195	ELIQUIS $107	CHANTIX $96	COLOGUARD $82	Other $327
Other	$7,578 TOUJEO $504	Kerendia $375	Trintellix $318	FREESTYLE LIBRE 3 $289	JARDIANCE $268	Other $5,823