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Dr. Leo E. Orr JR., MD

Accepting New Patients

(5 Ratings)

Specializes in: Medical Oncology, Adult Oncology and Adult Hematology

Baylor College of Medicine

1127 WILSHIRE BOULEVARD SUITE 900
LOS ANGELES, CA 90017

(213) 481-3948

Dr. Leo E. Orr JR., MD is a medical oncologist in LOS ANGELES, CA specializing in medical oncology, adult oncology and adult hematology. He graduated from Baylor College of Medicine. Dr. Leo E. Orr JR., MD is affiliated with California Hospital Medical Center, Dignity Health, PIH Health, The Oncology Institute of Hope and Innovation and THE ONCOLOGY INSTITUTE CA, A PROFESSIONAL CORPORATION.

Office Locations

PIH Health

1127 WILSHIRE BOULEVARD SUITE 900
LOS ANGELES, CA 90017

(213) 481-3948

(213) 481-1697

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In The News

“"Many patients know that transfusions carry risks that they simply don't want to incur," says Dr. Leo Orr, co-director of the transfusion-free program at Good Samaritan Hospital in Los Angeles, one...”—"Every drop counts", Los Angeles Times, February 2008

Noteworthy Medicare Patient Procedures Performed by Dr. Leo E. Orr JR., MD in 2023

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

Top 25%

By Affordability:

blood draw

hospital care

inpatient care

inpatient hospital care

intravenous infusion therapy

intravenous infusion

venipuncture

In 2012, Dr. Leo E. Orr JR., MD had a list price for blood draw, hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), intravenous infusion therapy, intravenous (IV) infusion, and venipuncture (phlebotomy) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within California. 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. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2012 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	539
blood draw	729
chemotherapy	539
doctor visit	1363
hospital care	821
inpatient care	821
lab tests	1071
minimally invasive procedures	663

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2013 were lab tests, minimally invasive procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	599
blood draw	644
chemotherapy	599
doctor visit	1265
hospital care	682
inpatient care	682
lab tests	1012
minimally invasive procedures	701

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	119
Female	181

**Ethnicity**
Non-Hispanic White	36
Black	138
Hispanic	106
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	127
From 75 to 84	77
85 and over	46
Less than 65	50

Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD in 2013

Hypertension	75
High Cholesterol	40
Stroke	8
Ischemic Heart Disease	46
Depression	23
Chronic Kidney Disease	40
Asthma	14
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	37
Chronic Obstructive Pulmonary Disease	24
Diabetes	48
Dementia	17
Cancer	46

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2014 were lab tests, minimally invasive procedures, blood draw and hospital care.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	520
blood draw	645
chemotherapy	520
doctor visit	1266
hospital care	634
inpatient care	634
lab tests	985
minimally invasive procedures	696

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	104
Female	184

**Ethnicity**
Non-Hispanic White	36
Black	144
Hispanic	89
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	84
85 and over	45
Less than 65	54

Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD in 2014

Hypertension	75
High Cholesterol	45
Stroke	9
Ischemic Heart Disease	47
Depression	24
Chronic Kidney Disease	45
Asthma	14
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	42
Chronic Obstructive Pulmonary Disease	24
Diabetes	48
Dementia	16
Cancer	47

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2015 were lab tests, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	359
blood draw	533
chemotherapy	359
doctor visit	1255
hospital care	720
inpatient care	720
lab tests	993
minimally invasive procedures	562

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	182
Female	398

**Ethnicity**
Non-Hispanic White	76
Black	250
Hispanic	210
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	172
85 and over	84
Less than 65	108

Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD in 2015

Hypertension	75
High Cholesterol	42
Stroke	8
Ischemic Heart Disease	45
Depression	20
Chronic Kidney Disease	43
Asthma	20
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	38
Chronic Obstructive Pulmonary Disease	24
Diabetes	47
Dementia	15
Cancer	43

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2016 were lab tests, blood draw, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	307
blood draw	568
chemotherapy	307
doctor visit	1069
hospital care	484
inpatient care	484
lab tests	800
minimally invasive procedures	507

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	88
Female	188

**Ethnicity**
Non-Hispanic White	30
Black	119
Hispanic	98
Asian	15
Other	14
Native American	0

**Age**
From 65 to 74	111
From 75 to 84	73
85 and over	45
Less than 65	47

Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD in 2016

Hypertension	75
High Cholesterol	49
Stroke	9
Ischemic Heart Disease	42
Depression	22
Chronic Kidney Disease	50
Asthma	24
Osteoperosis	9
Atrial Fibrilation	8
Heart Failure	33
Chronic Obstructive Pulmonary Disease	25
Diabetes	54
Dementia	16
Cancer	38

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2017 were lab tests, minimally invasive procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	192
blood draw	11
chemotherapy	192
doctor visit	1050
hospital care	377
inpatient care	377
lab tests	698
minimally invasive procedures	437

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	85
Female	180

**Ethnicity**
Non-Hispanic White	29
Black	109
Hispanic	107
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	106
From 75 to 84	68
85 and over	39
Less than 65	52

Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD in 2017

Hypertension	75
High Cholesterol	44
Stroke	5
Ischemic Heart Disease	41
Depression	21
Chronic Kidney Disease	50
Asthma	7
Osteoperosis	10
Atrial Fibrilation	6
Heart Failure	34
Chronic Obstructive Pulmonary Disease	22
Diabetes	55
Dementia	18
Cancer	41

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2018 were hospital care, inpatient care, lab tests and minimally invasive procedures.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	145
chemotherapy	145
doctor visit	883
hospital care	494
inpatient care	494
lab tests	456
minimally invasive procedures	344

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	95
Female	161

**Ethnicity**
Non-Hispanic White	36
Black	103
Hispanic	94
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	67
85 and over	40
Less than 65	45

Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD in 2018

Hypertension	75
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	42
Depression	23
Chronic Kidney Disease	51
Asthma	9
Osteoperosis	7
Atrial Fibrilation	9
Heart Failure	38
Chronic Obstructive Pulmonary Disease	21
Diabetes	54
Dementia	20
Cancer	43

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2019 were hospital care, inpatient care, lab tests and minimally invasive procedures.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	122
chemotherapy	122
doctor visit	679
hospital care	396
inpatient care	396
lab tests	377
minimally invasive procedures	254

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	96
Female	150

**Ethnicity**
Non-Hispanic White	24
Black	87
Hispanic	111
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	75
85 and over	36
Less than 65	42

Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD in 2019

Hypertension	75
High Cholesterol	55
Stroke	7
Ischemic Heart Disease	46
Depression	28
Chronic Kidney Disease	48
Asthma	12
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	38
Chronic Obstructive Pulmonary Disease	23
Diabetes	55
Dementia	19
Cancer	39

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2020 were lab tests, minimally invasive procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	126
chemotherapy	126
doctor visit	755
hospital care	174
inpatient care	174
lab tests	459
minimally invasive procedures	273

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	85
Female	147

**Ethnicity**
Non-Hispanic White	31
Black	69
Hispanic	106
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	67
85 and over	33
Less than 65	30

Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD in 2020

Hypertension	75
High Cholesterol	54
Stroke	6
Ischemic Heart Disease	41
Depression	18
Chronic Kidney Disease	47
Asthma	0
Osteoperosis	21
Atrial Fibrilation	8
Heart Failure	31
Chronic Obstructive Pulmonary Disease	20
Diabetes	51
Dementia	14
Cancer	35

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2021 were lab tests, minimally invasive procedures, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	238
blood draw	35
chemotherapy	238
doctor visit	875
hospital care	175
inpatient care	175
lab tests	530
minimally invasive procedures	396

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	70
Female	150

**Ethnicity**
Non-Hispanic White	38
Black	65
Hispanic	84
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	97
From 75 to 84	55
85 and over	35
Less than 65	33

Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD in 2021

Hypertension	75
High Cholesterol	59
Stroke	9
Ischemic Heart Disease	34
Depression	20
Chronic Kidney Disease	46
Asthma	8
Osteoperosis	25
Atrial Fibrilation	8
Heart Failure	30
Chronic Obstructive Pulmonary Disease	22
Diabetes	48
Dementia	13
Cancer	35

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA during 2022 were minimally invasive procedures, blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

biological response modifier (BRM) therapy	107
blood draw	133
chemotherapy	107
doctor visit	591
hospital care	125
inpatient care	125
lab tests	50
minimally invasive procedures	208

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	70
Female	161

**Ethnicity**
Non-Hispanic White	32
Black	66
Hispanic	97
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	66
85 and over	31
Less than 65	29

Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD in 2022

Hypertension	75
High Cholesterol	73
Stroke	17
Ischemic Heart Disease	23
Depression	20
Chronic Kidney Disease	38
Asthma	9
Osteoperosis	25
Atrial Fibrilation	14
Heart Failure	26
Chronic Obstructive Pulmonary Disease	19
Diabetes	52
Dementia	7
Cancer	44

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Leo E. Orr JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. Leo E. Orr JR., MD treated as a medical oncologist in LOS ANGELES, CA were lab tests, hospital care, inpatient care and minimally invasive procedures.

biological response modifier (BRM) therapy	295
blood draw	412
chemotherapy	295
doctor visit	1004
hospital care	462
inpatient care	462
lab tests	675
minimally invasive procedures	458

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Leo E. Orr JR., MD.

**Gender**
Male	90
Female	172

**Ethnicity**
Black / African American	104
Asian / Pacific Islander	3
Non-Hispanic White	33
Hispanic	100
Native American / Alaskan Native	0
Other	1

**Age**
75 to 84	73
85 and over	39
Less than 65	44
65 to 74	106

Average of Total of Conditions of Medicare patients treated by Dr. Leo E. Orr JR., MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Leo E. Orr JR., MD treated were hypertension, diabetes, high cholesterol and chronic kidney disease.

Hypertension	68
High Cholesterol	46
Stroke	7
Ischemic Heart Disease	37
Depression	19
Chronic Kidney Disease	41
Asthma	10
Osteoporosis	12
Heart Failure	31
Chronic Obstructive Pulmonary Disease	20
Diabetes	46
Atrial Fibrillation	8
Cancer	37
Dementia	14

Education & Training

Dr. Leo E. Orr JR., MD graduated from Baylor College of Medicine. He completed residency at Parkland Health & Hospital System. He is certified by the Board Certification: Medical Oncology and has a state license in California.

Medical School: Baylor College of Medicine

Residency: Parkland Health & Hospital System

Board Certification: Board Certification: Medical Oncology

Licensed In: California

Affiliations & Hospitals

Dr. Leo E. Orr JR., MD is associated with these hospitals and organizations:

California Hospital Medical Center

Dignity Health

PIH Health

The Oncology Institute of Hope and Innovation

THE ONCOLOGY INSTITUTE CA, A PROFESSIONAL CORPORATION

Ratings & Reviews

Dr. Leo E. Orr JR., MD has a high overall rating with an average of 4.2 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Leo E. Orr JR., MD from all over the web to help you find the right in LOS ANGELES, CA.

4.2

Overall Rating

(5 Ratings)

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General Payments

These charts describe general payments received by Dr. Leo E. Orr JR., MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Alexion Pharmaceuticals, Inc.	$1,638 SOLIRIS $1,613	ULTOMIRIS $25
Novartis Pharmaceuticals Corporation	$1,574 AFINITOR $481	PROMACTA $189	TASIGNA $160	MEKINIST $152	FEMARA $123	Other $469
Janssen Biotech, Inc.	$1,246 Erleada $371	IMBRUVICA $229	DARZALEX $185	ZYTIGA $145	Balversa $117	Other $200
Pfizer Inc.	$1,144 TALZENNA $190	BOSULIF $137	XTANDI $126	IBRANCE $122	ORGOVYX $116	Other $452
COMSORT, Inc	$850 KEYTRUDA $650	EMEND $200
Other	$10,708 OPDIVO $734	Lenvima $479	DOPTELET $399	Revlimid $394	XGEVA $380	Other $8,322

**Types of Payments**
Food and Beverage	$14,274
Consulting Fee	$2,050
Education	$653
Honoraria	$175
Travel and Lodging	$8

Research Payments

Dr. Leo E. Orr JR., MD has received 1 research payments totaling $2,125.

Biography

Dr. Leo Orr is a specialist in adult hematology, adult oncology, and medical oncology. Dr. Orr is rated highly by his patients. He attended medical school at Baylor College of Medicine. For his professional training, Dr. Orr completed residency programs at Methodist Health System and Parkland Health & Hospital System. Dr. Orr is professionally affiliated with The Oncology Institute of Hope and Innovation, PIH Health Good Samaritan Hospital, and California Hospital Medical Center. According to Doctor.com, he is currently accepting new patients at his office in LOS ANGELES, CA.