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Dr. Timothy C. O'Brien, MD

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Specializes in: General Surgery

Drexel University College of Medicine (1992)

4 Glen Cove Drive Suite 103
Rockport, ME 04856

(207) 301-5737

Dr. Timothy C. O'Brien, MD is a general surgeon in Rockport, ME specializing in general surgery. He graduated from Drexel University College of Medicine in 1992 and has 34 years of experience. Dr. Timothy C. O'Brien, MD is affiliated with MaineHealth, MaineHealth Pen Bay Hospital, MaineHealth Accountable Care Organization and MaineHealth Waldo Hospital.

Office Locations

MaineHealth Waldo Hospital

4 Glen Cove Drive Suite 103
Rockport, ME 04856

(207) 301-5737

(207) 301-5337

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Noteworthy Medicare Patient Procedures Performed by Dr. Timothy C. O'Brien, MD in 2023

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

Top 25%

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2012, Dr. Timothy C. O'Brien, MD had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Maine. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

doctor visit	114
hospital care	11
inpatient care	11

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME during 2013 were hospital care, inpatient care, catheterization and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

catheterization	14
diagnostic procedures	13
doctor visit	328
gastrointestinal procedures	13
hospital care	83
inpatient care	83
minimally invasive procedures	13
removal of lesion (e.g. growth)	13

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Male	178
Female	192

**Age**
From 65 to 74	125
From 75 to 84	111
85 and over	58
Less than 65	76

Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD in 2013

Hypertension	66
High Cholesterol	58
Stroke	6
Ischemic Heart Disease	31
Depression	31
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Dementia	7
Cancer	20

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME during 2014 were inpatient care, hospital care, gastrointestinal procedures and diagnostic procedures.

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

abdominal surgery	15
abscess drainage	13
catheterization	12
device removal	13
diagnostic procedures	55
doctor visit	420
excision	11
gastrointestinal procedures	70
hospital care	74
incision and drainage	13
inpatient care	74
minimally invasive procedures	55
minor procedures	13
open surgery	15
preventive care	28
removal of lesion (e.g. growth)	48
skin procedures	21
skin surgery	13
vascular procedures	11

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Male	212
Female	278

**Age**
From 65 to 74	167
From 75 to 84	147
85 and over	84
Less than 65	92

Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD in 2014

Hypertension	64
High Cholesterol	53
Stroke	8
Ischemic Heart Disease	33
Depression	28
Chronic Kidney Disease	20
Asthma	8
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	31
Dementia	13
Cancer	20

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME during 2015 were gastrointestinal procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

abdominal surgery	11
catheterization	11
diagnostic procedures	42
doctor visit	284
gastrointestinal procedures	88
hospital care	87
inpatient care	87
minimally invasive procedures	77
open surgery	11
preventive care	35
removal of lesion (e.g. growth)	42

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Male	354
Female	432

**Ethnicity**
Non-Hispanic White	764
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	276
From 75 to 84	222
85 and over	122
Less than 65	166

Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD in 2015

Hypertension	64
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	28
Depression	28
Chronic Kidney Disease	22
Asthma	13
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	24
Dementia	10
Cancer	20

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME during 2016 were hospital care, inpatient care, gastrointestinal procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

abdominal surgery	14
catheterization	15
diagnostic procedures	24
doctor visit	253
gastrointestinal procedures	38
hospital care	105
inpatient care	105
minimally invasive procedures	24
open surgery	14
removal of lesion (e.g. growth)	24

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Male	141
Female	190

**Ethnicity**
Non-Hispanic White	316
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	134
From 75 to 84	91
85 and over	36
Less than 65	70

Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD in 2016

Hypertension	67
High Cholesterol	52
Stroke	5
Ischemic Heart Disease	33
Depression	34
Chronic Kidney Disease	21
Asthma	27
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	19
Chronic Obstructive Pulmonary Disease	22
Diabetes	25
Dementia	8
Cancer	22

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME during 2017 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

catheterization	17
diagnostic procedures	25
doctor visit	228
gastrointestinal procedures	36
hospital care	47
inpatient care	47
minimally invasive procedures	36
preventive care	11
removal of lesion (e.g. growth)	25

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Male	136
Female	179

**Age**
From 65 to 74	127
From 75 to 84	96
85 and over	38
Less than 65	54

Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD in 2017

Hypertension	66
High Cholesterol	48
Stroke	6
Ischemic Heart Disease	38
Depression	36
Chronic Kidney Disease	27
Asthma	10
Osteoperosis	14
Atrial Fibrilation	18
Heart Failure	20
Chronic Obstructive Pulmonary Disease	17
Diabetes	27
Dementia	9
Cancer	22

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME during 2018 were hospital care, inpatient care and catheterization.

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

catheterization	14
doctor visit	175
hospital care	62
inpatient care	62

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Male	95
Female	105

**Age**
From 65 to 74	81
From 75 to 84	57
85 and over	33
Less than 65	29

Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD in 2018

Hypertension	70
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	44
Depression	39
Chronic Kidney Disease	31
Asthma	10
Osteoperosis	15
Atrial Fibrilation	16
Heart Failure	20
Chronic Obstructive Pulmonary Disease	20
Diabetes	26
Dementia	12
Cancer	28

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME during 2019 were hospital care, inpatient care and catheterization.

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

catheterization	19
doctor visit	193
hospital care	32
inpatient care	32

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Male	94
Female	106

**Age**
From 65 to 74	81
From 75 to 84	60
85 and over	27
Less than 65	32

Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD in 2019

Hypertension	64
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	46
Depression	36
Chronic Kidney Disease	27
Asthma	13
Osteoperosis	8
Atrial Fibrilation	21
Heart Failure	22
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Dementia	9
Cancer	28

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME during 2020 were catheterization, hospital care, inpatient care and open surgery.

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

abdominal surgery	11
catheterization	19
doctor visit	154
gastrointestinal procedures	11
hospital care	14
inpatient care	14
open surgery	11

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Male	97
Female	90

**Ethnicity**
Non-Hispanic White	176
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	75
From 75 to 84	59
85 and over	29
Less than 65	24

Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD in 2020

Hypertension	60
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	30
Depression	26
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	9
Cancer	29

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

doctor visit	137

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Male	84
Female	95

**Age**
From 65 to 74	82
From 75 to 84	58
85 and over	23
Less than 65	16

Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD in 2021

Hypertension	59
High Cholesterol	46
Stroke	7
Ischemic Heart Disease	29
Depression	25
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	9
Atrial Fibrilation	20
Heart Failure	21
Chronic Obstructive Pulmonary Disease	23
Diabetes	28
Dementia	11
Cancer	32

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME during 2022 were hospital care, inpatient care, open surgery and abdominal surgery.

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

abdominal surgery	13
doctor visit	190
gastrointestinal procedures	13
hospital care	31
inpatient care	31
open surgery	13

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Male	83
Female	110

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

**Age**
From 65 to 74	72
From 75 to 84	65
85 and over	33
Less than 65	23

Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD in 2022

Hypertension	65
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	21
Depression	23
Chronic Kidney Disease	26
Asthma	8
Osteoperosis	11
Atrial Fibrilation	25
Heart Failure	23
Chronic Obstructive Pulmonary Disease	24
Diabetes	24
Dementia	8
Cancer	31

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Timothy C. O'Brien, MD for Medicare patients.

The highest averages for the top procedures that Dr. Timothy C. O'Brien, MD treated as a general surgeon in Rockport, ME were inpatient care, hospital care, minimally invasive procedures and gastrointestinal procedures.

abdominal surgery	12
abscess drainage	13
catheterization	15
device removal	13
diagnostic procedures	31
doctor visit	225
excision	11
gastrointestinal procedures	38
hospital care	54
incision and drainage	13
inpatient care	54
minimally invasive procedures	41
minor procedures	13
open surgery	12
preventive care	24
removal of lesion (e.g. growth)	30
skin procedures	21
skin surgery	13
vascular procedures	11

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Timothy C. O'Brien, MD.

**Gender**
Female	161
Male	134

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	130
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
85 and over	43
75 to 84	87
Less than 65	52
65 to 74	110

Average of Total of Conditions of Medicare patients treated by Dr. Timothy C. O'Brien, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Timothy C. O'Brien, MD treated were hypertension, high cholesterol, ischemic heart disease and depression.

Hypertension	58
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	30
Depression	27
Chronic Kidney Disease	23
Asthma	9
Osteoporosis	9
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	24
Atrial Fibrillation	15
Dementia	8
Cancer	22

Education & Training

Dr. Timothy C. O'Brien, MD graduated from Drexel University College of Medicine in 1992. He completed residency at Beth Israel Deaconess Medical Center. He is certified by the Board Certification: Surgery (General Surgery) and has a state license in Maine.

Medical School: Drexel University College of Medicine (1992)

Residency: Beth Israel Deaconess Medical Center (1997)

Board Certification: Board Certification: Surgery (General Surgery) (1998)

Licensed In: Maine

Affiliations & Hospitals

Dr. Timothy C. O'Brien, MD is associated with these hospitals and organizations:

MaineHealth

MaineHealth Pen Bay Hospital

MaineHealth Accountable Care Organization

MaineHealth Waldo Hospital

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General Payments

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

**Payments by Company**
Baxter Healthcare	$136 BioTherapeutics - GAMMAGARD-KIOVIG $136

**Types of Payments**
Food and Beverage	$136

Biography

Dr. Timothy Obrien is a specialist in general surgery. He works in Rockport, ME. His education and training includes medical school at MCP Hahnemann School of Medicine and residency at Beth Israel Deaconess Medical Center. He is professionally affiliated with MaineHealth.