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Dr. Gerard Stephen O'Connor, MD

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Specializes in: General Surgery

Georgetown University School of Medicine (1978)

100 Brown Street
Chestertown, MD 21620

(410) 778-6303

Dr. Gerard Stephen O'Connor, MD is a general surgeon in Chestertown, MD specializing in general surgery. He graduated from Georgetown University School of Medicine in 1978 and has 48 years of experience. Dr. Gerard Stephen O'Connor, MD is affiliated with EASTERN SHORE URGENT CARE LLC.

Office Locations

100 Brown Street
Chestertown, MD 21620

(410) 778-6303

(410) 778-6306

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD during 2012 were minimally invasive procedures, gastrointestinal procedures, ultrasound (sonogram) and vascular procedures.

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

abdominal surgery	13
aspiration	22
breast procedures	51
diagnostic procedures	182
doctor visit	550
gastrointestinal procedures	501
hospital care	412
image guided procedures	22
inpatient care	412
minimally invasive procedures	510
minor procedures	22
neck imaging	61
open surgery	13
preventive care	225
removal of lesion (e.g. growth)	160
ultrasound (sonogram)	499
vascular procedures	427
women's imaging	51

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD during 2013 were minimally invasive procedures, gastrointestinal procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

abdominal surgery	15
aspiration	19
breast procedures	80
catheterization	12
diagnostic procedures	187
doctor visit	519
excision	14
gastrointestinal procedures	437
hospital care	397
image guided procedures	33
inpatient care	397
minimally invasive procedures	455
minor procedures	33
neck imaging	44
open surgery	29
preventive care	191
removal of lesion (e.g. growth)	154
ultrasound (sonogram)	110
women's imaging	66

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	269
Female	365

**Ethnicity**
Non-Hispanic White	524
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	284
From 75 to 84	196
85 and over	106
Less than 65	48

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	39
Depression	21
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	20
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	10
Cancer	23

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD during 2014 were gastrointestinal procedures, minimally invasive procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

abdominal surgery	13
breast procedures	34
catheterization	11
diagnostic procedures	120
doctor visit	584
emergency care	17
gastrointestinal procedures	415
hospital care	392
inpatient care	392
minimally invasive procedures	402
neck imaging	46
open surgery	13
preventive care	208
removal of lesion (e.g. growth)	120
ultrasound (sonogram)	80
women's imaging	34

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	293
Female	357

**Ethnicity**
Non-Hispanic White	534
Black	103
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	273
From 75 to 84	203
85 and over	104
Less than 65	70

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2014

Hypertension	75
High Cholesterol	70
Stroke	5
Ischemic Heart Disease	38
Depression	22
Chronic Kidney Disease	29
Asthma	9
Osteoperosis	9
Atrial Fibrilation	17
Heart Failure	20
Chronic Obstructive Pulmonary Disease	22
Diabetes	32
Dementia	11
Cancer	21

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD during 2015 were minimally invasive procedures, gastrointestinal procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

abdominal surgery	15
aspiration	18
breast procedures	114
catheterization	13
diagnostic procedures	146
doctor visit	666
emergency care	22
gastrointestinal procedures	446
hospital care	407
image guided procedures	34
inpatient care	407
minimally invasive procedures	465
minor procedures	34
neck imaging	54
open surgery	15
preventive care	220
removal of lesion (e.g. growth)	112
ultrasound (sonogram)	152
women's imaging	98

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	610
Female	820

**Ethnicity**
Non-Hispanic White	1158
Black	226
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	614
From 75 to 84	426
85 and over	250
Less than 65	140

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2015

Hypertension	75
High Cholesterol	69
Stroke	5
Ischemic Heart Disease	38
Depression	23
Chronic Kidney Disease	30
Asthma	15
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	20
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	14
Cancer	20

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD during 2016 were minimally invasive procedures, gastrointestinal procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

abdominal surgery	14
aspiration	17
breast procedures	76
catheterization	12
diagnostic procedures	158
doctor visit	624
gastrointestinal procedures	438
hospital care	338
image guided procedures	17
inpatient care	338
minimally invasive procedures	441
minor procedures	17
neck imaging	62
open surgery	14
preventive care	206
removal of lesion (e.g. growth)	141
ultrasound (sonogram)	138
women's imaging	76

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	299
Female	387

**Ethnicity**
Non-Hispanic White	563
Black	103
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	286
From 75 to 84	231
85 and over	97
Less than 65	72

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2016

Hypertension	75
High Cholesterol	68
Stroke	5
Ischemic Heart Disease	33
Depression	29
Chronic Kidney Disease	34
Asthma	23
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	18
Chronic Obstructive Pulmonary Disease	19
Diabetes	32
Dementia	13
Cancer	20

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD during 2017 were minimally invasive procedures, gastrointestinal procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

abdominal surgery	20
aspiration	37
breast procedures	100
diagnostic procedures	182
doctor visit	639
gastrointestinal procedures	371
hospital care	214
image guided procedures	37
inpatient care	214
minimally invasive procedures	388
minor procedures	37
neck imaging	76
open surgery	20
preventive care	143
removal of lesion (e.g. growth)	145
ultrasound (sonogram)	176
women's imaging	100

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	281
Female	368

**Ethnicity**
Non-Hispanic White	543
Black	84
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	276
From 75 to 84	222
85 and over	94
Less than 65	57

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2017

Hypertension	75
High Cholesterol	46
Stroke	5
Ischemic Heart Disease	29
Depression	28
Chronic Kidney Disease	35
Asthma	8
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	16
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Dementia	11
Cancer	20

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD during 2018 were minimally invasive procedures, gastrointestinal procedures, preventive care and diagnostic procedures.

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

abdominal surgery	11
aspiration	15
breast procedures	68
diagnostic procedures	155
doctor visit	662
gastrointestinal procedures	409
hospital care	119
image guided procedures	15
inpatient care	119
minimally invasive procedures	413
minor procedures	15
neck imaging	47
open surgery	11
preventive care	170
removal of lesion (e.g. growth)	140
ultrasound (sonogram)	115
women's imaging	68

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	300
Female	336

**Ethnicity**
Non-Hispanic White	520
Black	92
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	271
From 75 to 84	222
85 and over	82
Less than 65	61

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2018

Hypertension	75
High Cholesterol	68
Stroke	4
Ischemic Heart Disease	30
Depression	30
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	16
Chronic Obstructive Pulmonary Disease	21
Diabetes	32
Dementia	12
Cancer	20

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD during 2019 were gastrointestinal procedures, minimally invasive procedures, preventive care and diagnostic procedures.

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

abdominal surgery	11
breast procedures	80
diagnostic procedures	148
doctor visit	651
gastrointestinal procedures	407
hospital care	128
inpatient care	128
minimally invasive procedures	396
neck imaging	31
open surgery	11
preventive care	196
removal of lesion (e.g. growth)	148
ultrasound (sonogram)	111
women's imaging	80

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	314
Female	320

**Ethnicity**
Non-Hispanic White	497
Black	104
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	285
From 75 to 84	206
85 and over	86
Less than 65	57

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2019

Hypertension	75
High Cholesterol	71
Stroke	8
Ischemic Heart Disease	26
Depression	25
Chronic Kidney Disease	38
Asthma	11
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	17
Chronic Obstructive Pulmonary Disease	18
Diabetes	32
Dementia	12
Cancer	22

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD during 2020 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

breast procedures	50
diagnostic procedures	90
doctor visit	461
gastrointestinal procedures	266
hospital care	140
inpatient care	140
minimally invasive procedures	266
neck imaging	26
preventive care	115
removal of lesion (e.g. growth)	90
ultrasound (sonogram)	76
women's imaging	50

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	236
Female	265

**Ethnicity**
Non-Hispanic White	406
Black	75
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	213
From 75 to 84	182
85 and over	54
Less than 65	52

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2020

Hypertension	75
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	27
Depression	26
Chronic Kidney Disease	39
Asthma	8
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	17
Chronic Obstructive Pulmonary Disease	19
Diabetes	31
Dementia	13
Cancer	19

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD during 2021 were minimally invasive procedures, gastrointestinal procedures, preventive care and hospital care.

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

diagnostic procedures	45
doctor visit	217
gastrointestinal procedures	137
hospital care	67
inpatient care	67
minimally invasive procedures	137
preventive care	68
removal of lesion (e.g. growth)	45

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	143
Female	126

**Ethnicity**
Non-Hispanic White	222
Black	36
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	88
From 75 to 84	118
85 and over	37
Less than 65	26

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2021

Hypertension	75
High Cholesterol	71
Stroke	4
Ischemic Heart Disease	29
Depression	26
Chronic Kidney Disease	33
Asthma	8
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	12
Cancer	22

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

doctor visit	57

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	26
Female	41

**Age**
From 65 to 74	24
From 75 to 84	25
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	0
Depression	22
Chronic Kidney Disease	16
Asthma	0
Osteoperosis	0
Atrial Fibrilation	18
Heart Failure	0
Chronic Obstructive Pulmonary Disease	18
Diabetes	27
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gerard Stephen O'Connor, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gerard Stephen O'Connor, MD treated as a general surgeon in Chestertown, MD were vascular procedures, minimally invasive procedures, gastrointestinal procedures and inpatient care.

abdominal surgery	14
aspiration	21
breast procedures	72
catheterization	12
diagnostic procedures	141
doctor visit	511
emergency care	19
excision	14
gastrointestinal procedures	382
hospital care	261
image guided procedures	26
inpatient care	261
minimally invasive procedures	387
minor procedures	26
neck imaging	49
open surgery	15
preventive care	174
removal of lesion (e.g. growth)	125
ultrasound (sonogram)	161
vascular procedures	427
women's imaging	69

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gerard Stephen O'Connor, MD.

**Gender**
Male	251
Female	307

**Ethnicity**
Black / African American	74
Asian / Pacific Islander	0
Non-Hispanic White	451
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	184
85 and over	82
Less than 65	53
65 to 74	237

Average of Total of Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Gerard Stephen O'Connor, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	68
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	26
Depression	22
Chronic Kidney Disease	28
Asthma	8
Osteoporosis	8
Heart Failure	14
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Atrial Fibrillation	14
Cancer	17
Dementia	9

Education & Training

Dr. Gerard Stephen O'Connor, MD graduated from Georgetown University School of Medicine in 1978. He has a state license in Maryland.

Medical School: Georgetown University School of Medicine (1978)

Licensed In: Maryland

Affiliations & Hospitals

Dr. Gerard Stephen O'Connor, MD is associated with these hospitals and organizations:

EASTERN SHORE URGENT CARE LLC

Ratings & Reviews

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General Payments

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

**Payments by Company**
Davol Inc.	$1,702 PHASIX $14	$1,688
LIFECELL CORPORATION	$199 STRATTICE $199
Ferring Pharmaceuticals Inc.	$193 CLENPIQ $103	PREPOPIK $90
Pfizer Inc.	$75 LYRICA $75
Genentech USA, Inc.	$33 Herceptin $33
Other	$38 Reveal LINQ $15	SUPREP $12	Surgical Energy Products $10

**Types of Payments**
Travel and Lodging	$1,349
Food and Beverage	$891

Biography

Dr. Gerard O'Connor's medical specialty is family medicine and general surgery. He graduated from Georgetown University School of Medicine.

Select Year:

Dr. Gerard Stephen O'Connor, MD

Office Locations

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. Gerard Stephen O'Connor, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Gerard Stephen O'Connor, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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