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Dr. Ronald John Rivera, MD

(Dr. Ronald J. Rivera, M.D.)

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Specializes in: Emergency Medicine

University of California, Los Angeles (UCLA), David Geffen School of Medicine (2016)

333 City Boulevard W Suite 640
Orange, CA 92868

(714) 509-7664

Dr. Ronald John Rivera, MD is an emergency medicine doctor in Orange, CA specializing in emergency medicine. He graduated from University of California, Los Angeles (UCLA), David Geffen School of Medicine in 2016 and has 9 years of experience. Dr. Ronald John Rivera, MD is affiliated with UCI Health and REGENTS OF THE UNIVERSITY OF.

Office Locations

101 The City Drive South
Orange, CA 92868

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19200 Jamboree Road Suite 1500
Irvine, CA 92612

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333 City Boulevard W Suite 640
Orange, CA 92868

(714) 509-7664

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Noteworthy Medicare Patient Procedures Performed by Dr. Ronald John Rivera, MD in 2023

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

Top 25%

By Volume:

ultrasound

By Affordability:

limited abdominal ultrasound

thoracic imaging

transthoracic echocardiography

In 2013, among providers in related specialties within California, Dr. Ronald John Rivera, MD performed more ultrasound (sonogram) procedures for Medicare patients than 75% of them and he also had a list price for cardiac imaging, chest ultrasound, echocardiogram (echo), emergency care, emergency room (ER) care, limited abdominal ultrasound, thoracic (chest) imaging, and transthoracic echocardiography (TTE) that was lower than the list prices billed to Medicare by 75% of them. 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

2020 Medicare Procedure Volume

The top procedures that Dr. Ronald John Rivera, MD treated as an emergency medicine doctor in Orange, CA during 2020 were emergency care.

Volume of procedures performed by Dr. Ronald John Rivera, MD for Medicare patients.

emergency care	67

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald John Rivera, MD.

**Gender**
Male	38
Female	50

**Ethnicity**
Non-Hispanic White	37
Black	0
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	25
From 75 to 84	24
85 and over	11
Less than 65	28

Conditions of Medicare patients treated by Dr. Ronald John Rivera, MD in 2020

The most common conditions of Medicare patients that Dr. Ronald John Rivera, MD treated during 2020 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	75
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	49
Depression	33
Chronic Kidney Disease	63
Asthma	0
Osteoperosis	0
Atrial Fibrilation	18
Heart Failure	44
Chronic Obstructive Pulmonary Disease	24
Diabetes	55
Dementia	19
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Ronald John Rivera, MD treated as an emergency medicine doctor in Orange, CA during 2021 were emergency care, ultrasound (sonogram), abdominal imaging and cardiac procedures.

Volume of procedures performed by Dr. Ronald John Rivera, MD for Medicare patients.

abdominal imaging	18
cardiac procedures	15
emergency care	162
ultrasound (sonogram)	33

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald John Rivera, MD.

**Gender**
Male	93
Female	106

**Ethnicity**
Non-Hispanic White	76
Black	0
Hispanic	41
Asian	64
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	61
85 and over	27
Less than 65	34

Conditions of Medicare patients treated by Dr. Ronald John Rivera, MD in 2021

The most common conditions of Medicare patients that Dr. Ronald John Rivera, MD treated during 2021 were high cholesterol, hypertension, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	62
Depression	34
Chronic Kidney Disease	59
Asthma	14
Osteoperosis	21
Atrial Fibrilation	18
Heart Failure	39
Chronic Obstructive Pulmonary Disease	24
Diabetes	52
Dementia	26
Cancer	17

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Ronald John Rivera, MD treated as an emergency medicine doctor in Orange, CA during 2022 were emergency care, ultrasound (sonogram), cardiac procedures and thoracic (chest) imaging.

Volume of procedures performed by Dr. Ronald John Rivera, MD for Medicare patients.

abdominal imaging	13
cardiac procedures	27
emergency care	197
thoracic (chest) imaging	13
ultrasound (sonogram)	53

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald John Rivera, MD.

**Gender**
Male	126
Female	116

**Ethnicity**
Non-Hispanic White	100
Black	0
Hispanic	60
Asian	71
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	66
85 and over	32
Less than 65	55

Conditions of Medicare patients treated by Dr. Ronald John Rivera, MD in 2022

The most common conditions of Medicare patients that Dr. Ronald John Rivera, MD treated during 2022 were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	75
High Cholesterol	75
Stroke	23
Ischemic Heart Disease	41
Depression	31
Chronic Kidney Disease	42
Asthma	17
Osteoperosis	19
Atrial Fibrilation	26
Heart Failure	37
Chronic Obstructive Pulmonary Disease	20
Diabetes	48
Dementia	13
Cancer	19

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Ronald John Rivera, MD treated as an emergency medicine doctor in Orange, CA during 2023 were emergency care, ultrasound (sonogram), cardiac procedures and abdominal imaging.

Volume of procedures performed by Dr. Ronald John Rivera, MD for Medicare patients.

abdominal imaging	21
cardiac procedures	26
emergency care	174
thoracic (chest) imaging	11
ultrasound (sonogram)	58

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald John Rivera, MD.

**Gender**
Male	114
Female	116

**Ethnicity**
Non-Hispanic White	91
Black	0
Hispanic	62
Asian	56
Other	0
Native American	0

**Age**
From 65 to 74	76
From 75 to 84	69
85 and over	49
Less than 65	36

Conditions of Medicare patients treated by Dr. Ronald John Rivera, MD in 2023

The most common conditions of Medicare patients that Dr. Ronald John Rivera, MD treated during 2023 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	43
Depression	33
Chronic Kidney Disease	42
Asthma	15
Osteoperosis	20
Atrial Fibrilation	30
Heart Failure	35
Chronic Obstructive Pulmonary Disease	27
Diabetes	49
Dementia	21
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2020 - 2023

Volume of procedures performed by Dr. Ronald John Rivera, MD for Medicare patients.

The highest averages for the top procedures that Dr. Ronald John Rivera, MD treated as an emergency medicine doctor in Orange, CA were emergency care, ultrasound (sonogram), cardiac procedures and abdominal imaging.

abdominal imaging	17
cardiac procedures	22
emergency care	150
thoracic (chest) imaging	12
ultrasound (sonogram)	48

Average Medicare Patient Data From 2020 - 2023

Information about Medicare patients treated by Dr. Ronald John Rivera, MD.

**Gender**
Male	92
Female	97

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	47
Non-Hispanic White	76
Native American / Alaskan Native	0
Hispanic	46
Other	0

**Age**
75 to 84	55
85 and over	29
Less than 65	38
65 to 74	66

Average of Total of Conditions of Medicare patients treated by Dr. Ronald John Rivera, MD From 2020 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Ronald John Rivera, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	75
High Cholesterol	73
Stroke	13
Ischemic Heart Disease	48
Depression	32
Chronic Kidney Disease	51
Asthma	11
Osteoporosis	15
Heart Failure	38
Chronic Obstructive Pulmonary Disease	23
Diabetes	51
Atrial Fibrillation	23
Cancer	18
Dementia	19

Education & Training

Dr. Ronald John Rivera, MD graduated from University of California, Los Angeles (UCLA), David Geffen School of Medicine in 2016. He completed residency at SUNY Downstate Medical Center and Affiliated Hospitals. He is certified by the American Board of Emergency Medicine - Emergency Medicine and has a state license in California.

Medical School: University of California, Los Angeles (UCLA), David Geffen School of Medicine (2016)

Residency: SUNY Downstate Medical Center and Affiliated Hospitals

Board Certification: American Board of Emergency Medicine - Emergency Medicine

Licensed In: California

Affiliations & Hospitals

Dr. Ronald John Rivera, MD is associated with these hospitals and organizations:

UCI Health

REGENTS OF THE UNIVERSITY OF

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Biography

Dr. Ronald Rivera is a specialist in emergency medicine in Orange, CA and Irvine, CA. He obtained his medical school training at the University of California, Los Angeles (UCLA), David Geffen School of Medicine and performed his residency at a hospital affiliated with SUNY Downstate Medical Center. In addition to English, Dr. Rivera speaks Spanish. He is professionally affiliated with UCI Health.