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Dr. Daniel Patrick O'Brien Jr., M.D.

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Specializes in: Adult Gastroenterology

111 Osborne Street
Danbury, CT 06810

(203) 739-7038

Dr. Daniel Patrick O'Brien Jr., M.D. is a gastroenterologist in Danbury, CT specializing in adult gastroenterology. Dr. Daniel Patrick O'Brien Jr., M.D. is affiliated with NUVANCE HEALTH MEDICAL PRACTICE CT INC and NUVANCE HEALTH MEDICAL PRACTICE, PC.

Office Locations

Address:

111 Osborne Street
Danbury, CT 06810

diagnostic procedures	73
doctor visit	50
gastrointestinal procedures	81
hospital care	250
inpatient care	250
minimally invasive procedures	81
removal of lesion (e.g. growth)	73

**Gender**
Male	86
Female	123

**Ethnicity**
Non-Hispanic White	193
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	58
From 75 to 84	66
85 and over	59
Less than 65	26

Hypertension	75
High Cholesterol	73
Stroke	12
Ischemic Heart Disease	53
Depression	35
Chronic Kidney Disease	50
Asthma	11
Osteoperosis	20
Atrial Fibrilation	26
Heart Failure	39
Chronic Obstructive Pulmonary Disease	29
Diabetes	30
Dementia	17
Cancer	22

diagnostic procedures	222
doctor visit	253
gastrointestinal procedures	274
hospital care	265
inpatient care	265
minimally invasive procedures	286
preventive care	19
removal of lesion (e.g. growth)	222

**Gender**
Male	324
Female	458

**Ethnicity**
Non-Hispanic White	684
Black	32
Hispanic	30
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	242
From 75 to 84	238
85 and over	216
Less than 65	86

Hypertension	75
High Cholesterol	74
Stroke	13
Ischemic Heart Disease	57
Depression	37
Chronic Kidney Disease	45
Asthma	19
Osteoperosis	15
Atrial Fibrilation	25
Heart Failure	37
Chronic Obstructive Pulmonary Disease	27
Diabetes	37
Dementia	22
Cancer	21

diagnostic procedures	177
doctor visit	277
gastrointestinal procedures	199
hospital care	69
inpatient care	69
minimally invasive procedures	211
preventive care	13
removal of lesion (e.g. growth)	177

**Gender**
Male	139
Female	159

**Ethnicity**
Non-Hispanic White	259
Black	0
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	97
85 and over	61
Less than 65	47

Hypertension	75
High Cholesterol	72
Stroke	7
Ischemic Heart Disease	49
Depression	30
Chronic Kidney Disease	42
Asthma	25
Osteoperosis	13
Atrial Fibrilation	20
Heart Failure	30
Chronic Obstructive Pulmonary Disease	23
Diabetes	39
Dementia	15
Cancer	18

diagnostic procedures	204
doctor visit	305
gastrointestinal procedures	210
hospital care	119
injections	10
inpatient care	119
minimally invasive procedures	222
removal of lesion (e.g. growth)	204

**Gender**
Male	150
Female	172

**Ethnicity**
Non-Hispanic White	282
Black	0
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	124
From 75 to 84	98
85 and over	57
Less than 65	43

Hypertension	75
High Cholesterol	61
Stroke	9
Ischemic Heart Disease	46
Depression	34
Chronic Kidney Disease	45
Asthma	12
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	28
Chronic Obstructive Pulmonary Disease	19
Diabetes	30
Dementia	19
Cancer	19

diagnostic procedures	186
doctor visit	285
gastrointestinal procedures	200
hospital care	78
inpatient care	78
minimally invasive procedures	200
removal of lesion (e.g. growth)	186

**Gender**
Male	118
Female	140

**Ethnicity**
Non-Hispanic White	218
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	90
85 and over	42
Less than 65	30

Hypertension	72
High Cholesterol	68
Stroke	4
Ischemic Heart Disease	45
Depression	33
Chronic Kidney Disease	43
Asthma	8
Osteoperosis	14
Atrial Fibrilation	24
Heart Failure	26
Chronic Obstructive Pulmonary Disease	16
Diabetes	30
Dementia	16
Cancer	13

diagnostic procedures	160
doctor visit	275
gastrointestinal procedures	210
hospital care	127
hydrogen breath test	15
inpatient care	127
methane breath test	15
minimally invasive procedures	199
removal of lesion (e.g. growth)	160

**Gender**
Male	141
Female	170

**Ethnicity**
Non-Hispanic White	270
Black	0
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	101
85 and over	54
Less than 65	46

Hypertension	75
High Cholesterol	71
Stroke	7
Ischemic Heart Disease	48
Depression	33
Chronic Kidney Disease	44
Asthma	7
Osteoperosis	12
Atrial Fibrilation	22
Heart Failure	30
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	15
Cancer	17

diagnostic procedures	158
doctor visit	196
gastrointestinal procedures	166
hospital care	59
inpatient care	59
minimally invasive procedures	166
removal of lesion (e.g. growth)	158

**Gender**
Male	113
Female	129

**Ethnicity**
Non-Hispanic White	198
Black	0
Hispanic	16
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	74
85 and over	35
Less than 65	32

Hypertension	74
High Cholesterol	71
Stroke	9
Ischemic Heart Disease	47
Depression	35
Chronic Kidney Disease	43
Asthma	10
Osteoperosis	12
Atrial Fibrilation	21
Heart Failure	28
Chronic Obstructive Pulmonary Disease	21
Diabetes	38
Dementia	12
Cancer	15

diagnostic procedures	327
doctor visit	327
gastrointestinal procedures	322
hospital care	72
inpatient care	72
minimally invasive procedures	333
removal of lesion (e.g. growth)	327

Average Medicare Procedure Volume From 2014 - 2021

Volume of procedures performed by Dr. Daniel Patrick O'Brien Jr., M.D. for Medicare patients.

The highest averages for the top procedures that Dr. Daniel Patrick O'Brien Jr., M.D. treated as a gastroenterologist in Danbury, CT were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

diagnostic procedures	188
doctor visit	246
gastrointestinal procedures	211
hospital care	129
hydrogen breath test	15
injections	10
inpatient care	129
methane breath test	15
minimally invasive procedures	215
preventive care	16
removal of lesion (e.g. growth)	188

Average Medicare Patient Data From 2014 - 2021

Information about Medicare patients treated by Dr. Daniel Patrick O'Brien Jr., M.D..

**Gender**
Female	135
Male	107

**Ethnicity**
Black / African American	3
Asian / Pacific Islander	0
Non-Hispanic White	210
Native American / Alaskan Native	0
Hispanic	11
Other	1

**Age**
85 and over	52
75 to 84	76
Less than 65	31
65 to 74	82

Average of Total of Conditions of Medicare patients treated by Dr. Daniel Patrick O'Brien Jr., M.D. From 2014 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. Daniel Patrick O'Brien Jr., M.D. treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	52
High Cholesterol	49
Stroke	6
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	31
Asthma	9
Osteoporosis	9
Heart Failure	21
Chronic Obstructive Pulmonary Disease	15
Diabetes	23
Atrial Fibrillation	15
Cancer	12
Dementia	11

Education & Training

He has a state license in Connecticut.

Licensed In: Connecticut

Affiliations & Hospitals

Dr. Daniel Patrick O'Brien Jr., M.D. is associated with these hospitals and organizations:

NUVANCE HEALTH MEDICAL PRACTICE CT INC

NUVANCE HEALTH MEDICAL PRACTICE, PC

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General Payments

These charts describe general payments received by Dr. Daniel Patrick O'Brien Jr., M.D.. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Stryker Corporation	$275 TRIATHLON $109	Mako $95	NA $40	Insignia $31
AbbVie Inc.	$201 Skyrizi $125	Humira $52	Rinvoq $24
Janssen Biotech, Inc.	$137 STELARA $100	SIMPONI $23	DARZALEX $14
Braintree Laboratories, Inc.	$136 SUPREP $136
Ironwood Pharmaceuticals, Inc	$128 COLOGUARD $49	CANASA $43	VIBERZI $18	$18
Other	$886 ONIVYDE $91	LINZESS $71	Humira $62	Cimzia $49	AMITIZA $47	Other $566

**Types of Payments**
Food and Beverage	$1,633
Education	$129

Biography

Dr. Daniel Obrien sees patients in Danbury, CT. His medical specialty is adult gastroenterology. Dr. Obrien obtained a license to practice in Connecticut.