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Dr. Mari Stephanie Machi, MD

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Specializes in: Emergency Medicine

University of Pittsburgh School of Medicine

4560 Admiralty Way Suite 100
Marina Del Rey, CA 90292

(310) 827-3700

Dr. Mari Stephanie Machi, MD is an emergency medicine doctor in Marina Del Rey, CA specializing in emergency medicine. She graduated from University of Pittsburgh School of Medicine. Dr. Mari Stephanie Machi, MD is affiliated with UCLA Health and Cedars-Sinai.

Office Locations

4560 Admiralty Way Suite 100
Marina Del Rey, CA 90292

(310) 827-3700

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UCLA Health

6000 Sepulveda Boulevard Suite E10
Culver City, CA 90230

(310) 313-0060

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8700 Beverly Boulevard North Tower, Cedars - Sinai Emergency Room - Los Angeles
Los Angeles, CA 90048

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Noteworthy Medicare Patient Procedures Performed by Dr. Mari Stephanie Machi, MD in 2023

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

Top 5%

By Volume:

emergency room care

In 2023, Dr. Mari Stephanie Machi, MD performed more emergency room (ER) care procedures for Medicare patients than 95% of providers in related specialties within California.

Top 25%

By Affordability:

emergency care

emergency room care

In 2013, Dr. Mari Stephanie Machi, MD had a list price for emergency care, and emergency room (ER) care 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

2014 Medicare Procedure Volume

The top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA during 2014 were emergency care.

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

emergency care	309

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	141
Female	179

**Ethnicity**
Non-Hispanic White	212
Black	54
Hispanic	25
Asian	15
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	79
85 and over	88
Less than 65	70

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2014

The most common conditions of Medicare patients that Dr. Mari Stephanie Machi, MD treated during 2014 were hypertension, high cholesterol, ischemic heart disease and depression.

Hypertension	75
High Cholesterol	67
Stroke	15
Ischemic Heart Disease	65
Depression	48
Chronic Kidney Disease	46
Asthma	12
Osteoperosis	16
Atrial Fibrilation	20
Heart Failure	48
Chronic Obstructive Pulmonary Disease	24
Diabetes	46
Dementia	24
Cancer	17

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA during 2015 were emergency care.

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

emergency care	728

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	612
Female	862

**Ethnicity**
Non-Hispanic White	944
Black	266
Hispanic	144
Asian	76
Other	0
Native American	0

**Age**
From 65 to 74	392
From 75 to 84	392
85 and over	400
Less than 65	290

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2015

The most common conditions of Medicare patients that Dr. Mari Stephanie Machi, MD treated during 2015 were hypertension, high cholesterol, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	67
Stroke	15
Ischemic Heart Disease	63
Depression	46
Chronic Kidney Disease	48
Asthma	22
Osteoperosis	18
Atrial Fibrilation	20
Heart Failure	51
Chronic Obstructive Pulmonary Disease	26
Diabetes	46
Dementia	28
Cancer	16

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA during 2016 were emergency care.

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

emergency care	814

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	382
Female	454

**Ethnicity**
Non-Hispanic White	509
Black	151
Hispanic	78
Asian	62
Other	0
Native American	0

**Age**
From 65 to 74	245
From 75 to 84	220
85 and over	233
Less than 65	138

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2016

The most common conditions of Medicare patients that Dr. Mari Stephanie Machi, MD treated during 2016 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	68
Stroke	14
Ischemic Heart Disease	64
Depression	43
Chronic Kidney Disease	58
Asthma	29
Osteoperosis	15
Atrial Fibrilation	23
Heart Failure	52
Chronic Obstructive Pulmonary Disease	26
Diabetes	50
Dementia	30
Cancer	19

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA during 2017 were emergency care.

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

emergency care	850

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	378
Female	462

**Ethnicity**
Non-Hispanic White	512
Black	152
Hispanic	91
Asian	49
Other	0
Native American	0

**Age**
From 65 to 74	256
From 75 to 84	199
85 and over	217
Less than 65	168

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2017

The most common conditions of Medicare patients that Dr. Mari Stephanie Machi, MD treated during 2017 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	64
Stroke	14
Ischemic Heart Disease	62
Depression	45
Chronic Kidney Disease	57
Asthma	17
Osteoperosis	17
Atrial Fibrilation	19
Heart Failure	52
Chronic Obstructive Pulmonary Disease	25
Diabetes	48
Dementia	32
Cancer	19

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA during 2018 were emergency care.

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

emergency care	632

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	312
Female	348

**Ethnicity**
Non-Hispanic White	391
Black	130
Hispanic	72
Asian	43
Other	0
Native American	0

**Age**
From 65 to 74	188
From 75 to 84	186
85 and over	164
Less than 65	122

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2018

The most common conditions of Medicare patients that Dr. Mari Stephanie Machi, MD treated during 2018 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	72
Stroke	15
Ischemic Heart Disease	68
Depression	45
Chronic Kidney Disease	62
Asthma	16
Osteoperosis	17
Atrial Fibrilation	22
Heart Failure	53
Chronic Obstructive Pulmonary Disease	28
Diabetes	48
Dementia	34
Cancer	18

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA during 2019 were emergency care.

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

emergency care	399

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	178
Female	240

**Ethnicity**
Non-Hispanic White	254
Black	78
Hispanic	42
Asian	26
Other	18
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	109
85 and over	109
Less than 65	75

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2019

The most common conditions of Medicare patients that Dr. Mari Stephanie Machi, MD treated during 2019 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	72
Stroke	11
Ischemic Heart Disease	68
Depression	42
Chronic Kidney Disease	60
Asthma	17
Osteoperosis	19
Atrial Fibrilation	18
Heart Failure	52
Chronic Obstructive Pulmonary Disease	22
Diabetes	47
Dementia	31
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA during 2020 were emergency care.

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

emergency care	915

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	433
Female	504

**Ethnicity**
Non-Hispanic White	557
Black	166
Hispanic	105
Asian	66
Other	0
Native American	0

**Age**
From 65 to 74	304
From 75 to 84	250
85 and over	226
Less than 65	157

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2020

The most common conditions of Medicare patients that Dr. Mari Stephanie Machi, MD treated during 2020 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	73
Stroke	14
Ischemic Heart Disease	65
Depression	47
Chronic Kidney Disease	64
Asthma	13
Osteoperosis	18
Atrial Fibrilation	21
Heart Failure	54
Chronic Obstructive Pulmonary Disease	23
Diabetes	48
Dementia	32
Cancer	18

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA during 2021 were emergency care.

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

emergency care	829

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	386
Female	462

**Ethnicity**
Non-Hispanic White	469
Black	164
Hispanic	117
Asian	63
Other	0
Native American	0

**Age**
From 65 to 74	263
From 75 to 84	249
85 and over	189
Less than 65	147

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2021

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

Hypertension	75
High Cholesterol	74
Stroke	16
Ischemic Heart Disease	67
Depression	44
Chronic Kidney Disease	61
Asthma	14
Osteoperosis	17
Atrial Fibrilation	22
Heart Failure	56
Chronic Obstructive Pulmonary Disease	23
Diabetes	50
Dementia	34
Cancer	20

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA during 2022 were emergency care.

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

emergency care	653

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	327
Female	349

**Ethnicity**
Non-Hispanic White	372
Black	131
Hispanic	81
Asian	55
Other	0
Native American	0

**Age**
From 65 to 74	231
From 75 to 84	186
85 and over	147
Less than 65	112

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2022

The most common conditions of Medicare patients that Dr. Mari Stephanie Machi, MD treated during 2022 were high cholesterol, hypertension, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	75
Stroke	25
Ischemic Heart Disease	53
Depression	41
Chronic Kidney Disease	44
Asthma	16
Osteoperosis	22
Atrial Fibrilation	30
Heart Failure	47
Chronic Obstructive Pulmonary Disease	27
Diabetes	49
Dementia	24
Cancer	24

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA during 2023 were emergency care.

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

emergency care	755

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	369
Female	400

**Ethnicity**
Non-Hispanic White	413
Black	140
Hispanic	96
Asian	78
Other	0
Native American	0

**Age**
From 65 to 74	255
From 75 to 84	227
85 and over	175
Less than 65	112

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2023

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

Hypertension	75
High Cholesterol	75
Stroke	22
Ischemic Heart Disease	58
Depression	45
Chronic Kidney Disease	45
Asthma	17
Osteoperosis	26
Atrial Fibrilation	30
Heart Failure	47
Chronic Obstructive Pulmonary Disease	29
Diabetes	53
Dementia	24
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2023

Volume of procedures performed by Dr. Mari Stephanie Machi, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mari Stephanie Machi, MD treated as an emergency medicine doctor in Marina Del Rey, CA were emergency care.

emergency care	688

Average Medicare Patient Data From 2014 - 2023

Information about Medicare patients treated by Dr. Mari Stephanie Machi, MD.

**Gender**
Male	351
Female	426

**Ethnicity**
Black / African American	143
Asian / Pacific Islander	53
Non-Hispanic White	463
Native American / Alaskan Native	0
Hispanic	85
Other	1

**Age**
75 to 84	209
85 and over	194
Less than 65	139
65 to 74	234

Average of Total of Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD From 2014 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Mari Stephanie Machi, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	70
Stroke	16
Ischemic Heart Disease	63
Depression	44
Chronic Kidney Disease	54
Asthma	17
Osteoporosis	18
Heart Failure	51
Chronic Obstructive Pulmonary Disease	25
Diabetes	48
Atrial Fibrillation	22
Cancer	18
Dementia	29

Education & Training

Dr. Mari Stephanie Machi, MD graduated from University of Pittsburgh School of Medicine. She completed residency at University of California, Los Angeles (UCLA) Affiliated Hospitals. She is certified by the Emergency Medicine, American Board of Emergency Medicine and has a state license in California.

Medical School: University of Pittsburgh School of Medicine

Residency: University of California, Los Angeles (UCLA) Affiliated Hospitals

Board Certification: Emergency Medicine, American Board of Emergency Medicine

Licensed In: California

Affiliations & Hospitals

Dr. Mari Stephanie Machi, MD is associated with these hospitals and organizations:

UCLA Health

Cedars-Sinai

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Mari Stephanie Machi, MD appears to accept the following insurance providers: TRICARE, Cigna, Private Healthcare Systems (PHCS), Aetna, Blue Shield of California, MultiPlan, UnitedHealthcare, Anthem, Medicare Advantage, Prime Health, First Health, HealthSmart, Health Net of California, Centivo and UFCM Health System.

Insurance Accepted by Provider includes:

According to our sources, Dr. Mari Stephanie Machi, MD accepts the following insurance providers:

TRICARE

Cigna

Private Healthcare Systems (PHCS)

Aetna

Blue Shield of California

MultiPlan

UnitedHealthcare

Anthem

Medicare Advantage

Prime Health

First Health

HealthSmart

Health Net of California

Centivo

UFCM Health System

Ratings & Reviews

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Biography

Dr. Mari Machi sees patients in Marina Del Rey, CA and Los Angeles, CA. Her medical specialty is emergency medicine. She takes Anthem, UnitedHealthcare, and Blue California, in addition to other insurance carriers. Dr. Machi's education and training includes medical school at the University of Pittsburgh School of Medicine and residency at a hospital affiliated with the University of California, Los Angeles (UCLA). She is affiliated with UCLA Health and Cedars-Sinai. Cedars-Sinai reports that she is not accepting new patients.

Select Year:

Dr. Mari Stephanie Machi, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Mari Stephanie Machi, MD in 2023

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2023

Average Medicare Patient Data From 2014 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Mari Stephanie Machi, MD From 2014 - 2023

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

Biography

Other Providers in Marina Del Rey, CA