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Dr. Susan M. O'Brien, MD

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Specializes in: Medical Oncology, Adult Oncology and Adult Hematology

University of Medicine and Dentistry of New Jersey (UMDNJ)

Professional interests include: blood cancers

101 The City Drive South Building 23
Orange, CA 92868

(714) 456-8000

Dr. Susan M. O'Brien, MD is a medical oncologist in Orange, CA specializing in medical oncology, adult oncology and adult hematology. She graduated from University of Medicine and Dentistry of New Jersey (UMDNJ). Dr. Susan M. O'Brien, MD is affiliated with UCI Health.

Office Locations

101 The City Drive South Building 23
Orange, CA 92868

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In The News (see more mentions in the news)

“Patients with relapsed or refractory B cell non-Hodgkin lymphoma are in need of treatments that are immediately available and do not require burdensome or ineffective bridging therapies," said...”—"Caribou Biosciences Reports CB-010 ANTLER Phase 1 Trial Progress", KRON4, December 2022

“MedPage Today has brought together three expert leaders in their field: Moderator Susan O'Brien, MD, of Chao Family Comprehensive Cancer Center, University of California Irvine Health, is joined by...”—"CLL at ASH 2020: The CAPTIVATE trial", MedPage Today, December 2020

“MedPage Today brought together three expert leaders in their field: Moderator Susan O'Brien, MD, of Chao Family Comprehensive Cancer Center, University of California Irvine Health, is joined by...”—"Where U2 Will Fit in CLL Treatment Landscape?", MedPage Today, December 2020

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Susan M. O'Brien, MD treated as a medical oncologist in Orange, CA during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	401
hospital care	534
inpatient care	534

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Susan M. O'Brien, MD treated as a medical oncologist in Orange, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	391
hospital care	493
inpatient care	493

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	165
Female	98

**Ethnicity**
Non-Hispanic White	235
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	150
From 75 to 84	71
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2013

Hypertension	67
High Cholesterol	50
Stroke	7
Ischemic Heart Disease	44
Depression	22
Chronic Kidney Disease	38
Asthma	6
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	23
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Dementia	4
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Susan M. O'Brien, MD treated as a medical oncologist in Orange, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	399
hospital care	428
inpatient care	428

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	141
Female	107

**Ethnicity**
Non-Hispanic White	221
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	131
From 75 to 84	77
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2014

Hypertension	68
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	38
Depression	25
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	12
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	23
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	13

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	42
Female	26

**Age**
From 65 to 74	40
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2015

Hypertension	62
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	44
Depression	0
Chronic Kidney Disease	38
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	32
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Susan M. O'Brien, MD treated as a medical oncologist in Orange, CA during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	23
hospital care	178
inpatient care	178

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	49
Female	37

**Ethnicity**
Non-Hispanic White	66
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	47
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2016

Hypertension	66
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	41
Depression	24
Chronic Kidney Disease	43
Asthma	20
Osteoperosis	13
Atrial Fibrilation	0
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	136

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	24
Female	27

**Ethnicity**
Non-Hispanic White	39
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	23
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2017

Hypertension	67
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	37
Depression	35
Chronic Kidney Disease	39
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	29
Dementia	0
Cancer	24

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	164

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	47
Female	32

**Ethnicity**
Non-Hispanic White	59
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	40
From 75 to 84	26
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2018

Hypertension	62
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	37
Depression	20
Chronic Kidney Disease	37
Asthma	15
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	19
Chronic Obstructive Pulmonary Disease	14
Diabetes	24
Dementia	0
Cancer	20

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Susan M. O'Brien, MD treated as a medical oncologist in Orange, CA during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	202
hospital care	43
inpatient care	43

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	55
Female	41

**Ethnicity**
Non-Hispanic White	68
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	48
From 75 to 84	33
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2019

Hypertension	60
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	34
Depression	21
Chronic Kidney Disease	32
Asthma	0
Osteoperosis	0
Atrial Fibrilation	18
Heart Failure	16
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	18

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Susan M. O'Brien, MD treated as a medical oncologist in Orange, CA during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	191
hospital care	46
inpatient care	46

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	54
Female	40

**Ethnicity**
Non-Hispanic White	69
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	49
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2020

Hypertension	65
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	32
Depression	29
Chronic Kidney Disease	35
Asthma	0
Osteoperosis	0
Atrial Fibrilation	13
Heart Failure	20
Chronic Obstructive Pulmonary Disease	0
Diabetes	17
Dementia	0
Cancer	20

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Susan M. O'Brien, MD treated as a medical oncologist in Orange, CA during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	229
hospital care	97
inpatient care	97

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	48
Female	53

**Ethnicity**
Non-Hispanic White	77
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	46
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2021

Hypertension	68
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	36
Depression	20
Chronic Kidney Disease	35
Asthma	0
Osteoperosis	17
Atrial Fibrilation	14
Heart Failure	16
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	0
Cancer	22

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	132

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	46
Female	39

**Ethnicity**
Non-Hispanic White	70
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	42
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2022

Hypertension	68
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	26
Depression	19
Chronic Kidney Disease	25
Asthma	0
Osteoperosis	20
Atrial Fibrilation	24
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	27

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

doctor visit	162

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	46
Female	39

**Ethnicity**
Non-Hispanic White	69
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	42
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD in 2023

Hypertension	72
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	28
Depression	18
Chronic Kidney Disease	31
Asthma	0
Osteoperosis	19
Atrial Fibrilation	24
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	24

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Susan M. O'Brien, MD for Medicare patients.

The highest averages for the top procedures that Dr. Susan M. O'Brien, MD treated as a medical oncologist in Orange, CA were hospital care and inpatient care.

doctor visit	203
hospital care	259
inpatient care	259

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Susan M. O'Brien, MD.

**Gender**
Male	59
Female	44

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	0
Non-Hispanic White	81
Hispanic	1
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	21
85 and over	0
Less than 65	0
65 to 74	54

Average of Total of Conditions of Medicare patients treated by Dr. Susan M. O'Brien, MD From 2012 - 2023

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

Hypertension	60
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	33
Depression	19
Chronic Kidney Disease	32
Asthma	3
Osteoporosis	7
Heart Failure	11
Chronic Obstructive Pulmonary Disease	5
Diabetes	21
Atrial Fibrillation	9
Cancer	16
Dementia	0

Education & Training

Dr. Susan M. O'Brien, MD graduated from University of Medicine and Dentistry of New Jersey (UMDNJ). She completed residency at University of Medicine and Dentistry of New Jersey (UMDNJ) Affiliated Hospitals. She is certified by the American Board of Internal Medicine - Medical Oncology American Board of Internal Medicine - Internal Medicine and has a state license in Texas.

Medical School: University of Medicine and Dentistry of New Jersey (UMDNJ)

Residency: University of Medicine and Dentistry of New Jersey (UMDNJ) Affiliated Hospitals

Board Certification: American Board of Internal Medicine - Medical Oncology American Board of Internal Medicine - Internal Medicine

Licensed In: Texas

Affiliations & Hospitals

Dr. Susan M. O'Brien, MD is associated with these hospitals and organizations:

UCI Health

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General Payments

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

**Payments by Company**
Celgene Corporation	$91,766 None $19,006	Revlimid $11,523	CC-292 $1,688	$59,550
Pharmacyclics LLC, An AbbVie Company	$73,405 IMBRUVICA $73,293	EPKINLY $112
Pfizer Inc.	$72,601 BESPONSA $39,800	Non-Covered Product $8,751	MYLOTARG $2,500	BOSULIF $1,337	$20,213
AbbVie, Inc.	$62,310 Venclexta $45,638	Lupron $5,350	$11,321
AbbVie Inc.	$46,534 Venclexta $30,167	IMBRUVICA $5,850	Epkinly $54	$10,463
Other	$359,687 CALQUENCE $36,642	IMBRUVICA $32,853	BRUKINSA $26,120	Oncology TA $19,239	NonCovered Product $19,162	Other $225,671

**Types of Payments**
Consulting Fee	$538,887
Travel and Lodging	$63,628
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$56,458
Honoraria	$25,270
Food and Beverage	$14,007
Other	$8,054

Research Payments

Dr. Susan M. O'Brien, MD has received 264 research payments totaling $4,379,187.

Biography

Dr. Susan Obrien specializes in adult hematology, adult oncology, and medical oncology. Areas of expertise for Dr. Obrien include blood cancers. Dr. Obrien graduated from the University of Medicine and Dentistry of New Jersey (UMDNJ). Her residency was performed at a hospital affiliated with the University of Medicine and Dentistry of New Jersey (UMDNJ). She has received distinctions including Southern California Super Doctors; Texas Super Doctors; and Best Doctors in America - Medical Oncology and Hematology. Dr. Obrien is professionally affiliated with UCI Health.