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Home > CA Providers > Oncologists

Dr. Mohammadbagher Ziari, MD

(Mohammadbagher Ziari, MD - Closed)

(142 Ratings)

Specializes in: Oncology (Cancer Care) and Hematology (Blood Disorders)

Professional interests include: cancer, blood cancers

1640 Newport Boulevard Suite 400
Costa Mesa, CA 92627

(714) 456-8000

Dr. Mohammadbagher Ziari, MD is an oncologist in Costa Mesa, CA specializing in oncology (cancer care) and hematology (blood disorders). Dr. Mohammadbagher Ziari, MD is affiliated with AHMC Healthcare, UCI Health, UC REGENTS and UCI Health Chao Family Comprehensive Cancer Center — Yorba Linda.

Office Locations

1640 Newport Boulevard Suite 400
Costa Mesa, CA 92627

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101 The City Drive S Building 23
Orange, CA 92868

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19208 Jamboree Road
Irvine, CA 92612

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

doctor visit	124

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

doctor visit	470
hospital care	25
inpatient care	25

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	58
Female	86

**Ethnicity**
Non-Hispanic White	45
Black	30
Hispanic	57
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	68
From 75 to 84	0
85 and over	0
Less than 65	60

Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD in 2013

Hypertension	51
High Cholesterol	30
Stroke	0
Ischemic Heart Disease	19
Depression	19
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	0
Cancer	60

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

doctor visit	217
hospital care	14
inpatient care	14

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	42
Female	68

**Ethnicity**
Non-Hispanic White	34
Black	0
Hispanic	39
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	0
85 and over	0
Less than 65	42

Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD in 2014

Hypertension	54
High Cholesterol	24
Stroke	0
Ischemic Heart Disease	20
Depression	15
Chronic Kidney Disease	25
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	0
Cancer	57

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA during 2015 were minimally invasive procedures, hospital care, inpatient care and chemotherapy.

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

biological response modifier (BRM) therapy	76
chemotherapy	76
doctor visit	215
hospital care	99
inpatient care	99
minimally invasive procedures	103

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	148
Female	172

**Ethnicity**
Non-Hispanic White	194
Black	34
Hispanic	64
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	140
From 75 to 84	90
85 and over	46
Less than 65	44

Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD in 2015

Hypertension	74
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	38
Depression	19
Chronic Kidney Disease	44
Asthma	21
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	24
Chronic Obstructive Pulmonary Disease	29
Diabetes	44
Dementia	12
Cancer	51

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA during 2016 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and port flush.

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

aspiration	11
biological response modifier (BRM) therapy	245
bone marrow tests	22
chemotherapy	245
diagnostic procedures	22
doctor visit	539
hospital care	26
inpatient care	26
minimally invasive procedures	315
port flush	40

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	84
Female	108

**Ethnicity**
Non-Hispanic White	115
Black	21
Hispanic	44
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	43
85 and over	21
Less than 65	35

Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD in 2016

Hypertension	67
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	42
Asthma	25
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	25
Chronic Obstructive Pulmonary Disease	27
Diabetes	40
Dementia	13
Cancer	49

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA during 2017 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

aspiration	13
biological response modifier (BRM) therapy	296
bone marrow tests	26
chemotherapy	296
diagnostic procedures	26
doctor visit	724
hospital care	108
inpatient care	108
minimally invasive procedures	356
port flush	80

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	102
Female	156

**Ethnicity**
Non-Hispanic White	142
Black	32
Hispanic	65
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	60
85 and over	27
Less than 65	51

Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD in 2017

Hypertension	68
High Cholesterol	43
Stroke	9
Ischemic Heart Disease	36
Depression	24
Chronic Kidney Disease	42
Asthma	6
Osteoperosis	5
Atrial Fibrilation	10
Heart Failure	28
Chronic Obstructive Pulmonary Disease	20
Diabetes	41
Dementia	14
Cancer	55

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA during 2018 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

biological response modifier (BRM) therapy	344
chemotherapy	344
doctor visit	729
hormone therapy	89
hospital care	107
inpatient care	107
minimally invasive procedures	418
port flush	33

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	124
Female	182

**Ethnicity**
Non-Hispanic White	181
Black	32
Hispanic	62
Asian	19
Other	0
Native American	0

**Age**
From 65 to 74	148
From 75 to 84	79
85 and over	32
Less than 65	47

Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD in 2018

Hypertension	68
High Cholesterol	48
Stroke	5
Ischemic Heart Disease	33
Depression	18
Chronic Kidney Disease	47
Asthma	4
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	24
Chronic Obstructive Pulmonary Disease	21
Diabetes	35
Dementia	14
Cancer	53

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA during 2019 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

biological response modifier (BRM) therapy	325
chemotherapy	325
doctor visit	771
hormone therapy	79
hospital care	133
inpatient care	133
minimally invasive procedures	398

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	134
Female	223

**Ethnicity**
Non-Hispanic White	225
Black	35
Hispanic	63
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	163
From 75 to 84	103
85 and over	39
Less than 65	52

Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD in 2019

Hypertension	68
High Cholesterol	55
Stroke	6
Ischemic Heart Disease	33
Depression	23
Chronic Kidney Disease	44
Asthma	6
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	24
Chronic Obstructive Pulmonary Disease	21
Diabetes	38
Dementia	14
Cancer	54

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA during 2020 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

biological response modifier (BRM) therapy	529
chemotherapy	529
doctor visit	935
hormone therapy	113
hospital care	126
inpatient care	126
minimally invasive procedures	637
port flush	35

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	186
Female	243

**Ethnicity**
Non-Hispanic White	248
Black	39
Hispanic	98
Asian	27
Other	0
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	128
85 and over	33
Less than 65	61

Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD in 2020

Hypertension	60
High Cholesterol	45
Stroke	5
Ischemic Heart Disease	37
Depression	20
Chronic Kidney Disease	47
Asthma	5
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	24
Chronic Obstructive Pulmonary Disease	20
Diabetes	38
Dementia	11
Cancer	48

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA during 2021 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hormone therapy.

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

biological response modifier (BRM) therapy	514
chemotherapy	514
doctor visit	1114
hormone therapy	89
hospital care	65
inpatient care	65
minimally invasive procedures	625
port flush	34

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	206
Female	291

**Ethnicity**
Non-Hispanic White	299
Black	32
Hispanic	107
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	252
From 75 to 84	142
85 and over	39
Less than 65	64

Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD in 2021

Hypertension	63
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	31
Depression	22
Chronic Kidney Disease	41
Asthma	5
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	21
Chronic Obstructive Pulmonary Disease	16
Diabetes	33
Dementia	12
Cancer	48

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA during 2022 were hospital care, inpatient care, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

biological response modifier (BRM) therapy	63
chemotherapy	63
doctor visit	892
hospital care	72
inpatient care	72
minimally invasive procedures	63

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	151
Female	213

**Ethnicity**
Non-Hispanic White	220
Black	22
Hispanic	84
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	170
From 75 to 84	119
85 and over	28
Less than 65	47

Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD in 2022

Hypertension	74
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	22
Depression	25
Chronic Kidney Disease	34
Asthma	10
Osteoperosis	16
Atrial Fibrilation	17
Heart Failure	21
Chronic Obstructive Pulmonary Disease	23
Diabetes	39
Dementia	8
Cancer	50

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mohammadbagher Ziari, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mohammadbagher Ziari, MD treated as an oncologist in Costa Mesa, CA were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hormone therapy.

aspiration	12
biological response modifier (BRM) therapy	299
bone marrow tests	24
chemotherapy	299
diagnostic procedures	24
doctor visit	611
hormone therapy	92
hospital care	77
inpatient care	77
minimally invasive procedures	364

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mohammadbagher Ziari, MD.

**Gender**
Male	112
Female	158

**Ethnicity**
Black / African American	25
Asian / Pacific Islander	11
Non-Hispanic White	154
Native American / Alaskan Native	0
Hispanic	62
Other	0

**Age**
75 to 84	69
85 and over	24
Less than 65	45
65 to 74	128

Average of Total of Conditions of Medicare patients treated by Dr. Mohammadbagher Ziari, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Mohammadbagher Ziari, MD treated were hypertension, cancer, high cholesterol and chronic kidney disease.

Hypertension	58
High Cholesterol	42
Stroke	3
Ischemic Heart Disease	27
Depression	19
Chronic Kidney Disease	35
Asthma	7
Osteoporosis	6
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	33
Atrial Fibrillation	8
Dementia	8
Cancer	47

Education & Training

He completed residency at SLU - Internal Medicine. He is certified by the American Board of Internal Medicine - Hematology American Board of Internal Medicine - Medical Oncology and has a state license in Colorado.

Residency: SLU - Internal Medicine

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

Licensed In: Colorado

Affiliations & Hospitals

Dr. Mohammadbagher Ziari, MD is associated with these hospitals and organizations:

AHMC Healthcare

UCI Health

UC REGENTS

UCI Health Chao Family Comprehensive Cancer Center — Yorba Linda

Ratings & Reviews

Dr. Mohammadbagher Ziari, MD has an exceptional overall rating with an average of 4.8 out of 5 stars based on 142 ratings. We collect ratings and reviews of Dr. Mohammadbagher Ziari, MD from all over the web to help you find the right in Costa Mesa, CA.

4.8

Overall Rating

(142 Ratings)

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$826,932 LYNPARZA $235,384	TAGRISSO $217,006	IMFINZI $208,902	Enhertu $59,322	CALQUENCE $3,441	Other $102,877
Karyopharm Therapeutics Inc.	$275,557 XPOVIO $275,557
E.R. Squibb & Sons, L.L.C.	$219,465 OPDIVO $161,997	Pomalyst $43,838	Reblozyl $139	SPRYCEL $37	EMPLICITI $36	Other $13,417
Regeneron Healthcare Solutions, Inc.	$178,919 LIBTAYO $178,919
Merck Sharp & Dohme Corporation	$157,781 KEYTRUDA $143,904	Lenvima $34	NON-PRODUCT $14	$13,830
Other	$686,788 Enhertu $88,530	Revlimid $87,505	VERZENIO $76,788	LIBTAYO $74,819	Kyprolis $65,846	Other $293,300

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$1,599,016
Honoraria	$297,874
Travel and Lodging	$257,331
Consulting Fee	$136,436
Food and Beverage	$42,492
Other	$12,293

Research Payments

Dr. Mohammadbagher Ziari, MD has received 7 research payments totaling $4,840.

Biography

Dr. Mohammadbagher Ziari sees patients in Corona, CA, Moreno Valley, CA, and Costa Mesa, CA. His medical specialties are oncology (cancer care) and hematology (blood disorders). He is especially interested in blood cancers. Dr. Ziari's professional affiliations include UCI Health and AHMC Healthcare. He is rated 5.0 stars (out of 5) by his patients.