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Dr. Roham Tahmaseb Zamanian, MD

(2 Ratings)

Specializes in: Adult Pulmonology and Critical Care (Intensive Care Medicine)

University of California, Irvine, School of Medicine (1999)

Professional interests include: pulmonary hypertension, pulmonary embolism, hereditary hemorrhagic telangiectasia (HHT)

300 Pasteur Drive Floor 1 Room A175
Palo Alto, CA 94305

(650) 725-7061

Dr. Roham Tahmaseb Zamanian, MD is a pulmonologist in Palo Alto, CA specializing in adult pulmonology and critical care (intensive care medicine). He graduated from University of California, Irvine, School of Medicine in 1999 and has 27 years of experience. Dr. Roham Tahmaseb Zamanian, MD is affiliated with Stanford Health Care.

Office Locations

Stanford Health Care

300 Pasteur Drive Floor 1 Room A175
Palo Alto, CA 94305

(650) 725-7061

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Noteworthy Medicare Patient Procedures Performed by Dr. Roham Tahmaseb Zamanian, MD in 2023

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

Top 25%

By Volume:

right heart catheterization

In 2012, Dr. Roham Tahmaseb Zamanian, MD performed more right heart catheterization procedures for Medicare patients than 75% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2012 were pulmonary testing, minimally invasive procedures, catheterization and cardiac procedures.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	47
catheterization	47
diagnostic procedures	47
doctor visit	103
minimally invasive procedures	47
pulmonary testing	223

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2013 were pulmonary testing, minimally invasive procedures, catheterization and cardiac procedures.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	68
catheterization	68
diagnostic procedures	68
doctor visit	81
hospital care	55
inpatient care	55
minimally invasive procedures	68
pulmonary testing	102

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	48
Female	133

**Ethnicity**
Non-Hispanic White	121
Black	0
Hispanic	32
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	61
From 75 to 84	0
85 and over	0
Less than 65	73

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2013

Hypertension	64
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	44
Depression	32
Chronic Kidney Disease	48
Asthma	19
Osteoperosis	10
Atrial Fibrilation	20
Heart Failure	75
Chronic Obstructive Pulmonary Disease	36
Diabetes	33
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2014 were minimally invasive procedures, catheterization, cardiac procedures and diagnostic procedures.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	56
catheterization	56
diagnostic procedures	56
doctor visit	64
minimally invasive procedures	56
pulmonary testing	17

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	30
Female	78

**Ethnicity**
Non-Hispanic White	63
Black	0
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	47
From 75 to 84	0
85 and over	0
Less than 65	35

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2014

Hypertension	73
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	41
Depression	28
Chronic Kidney Disease	45
Asthma	20
Osteoperosis	0
Atrial Fibrilation	21
Heart Failure	75
Chronic Obstructive Pulmonary Disease	31
Diabetes	40
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2015 were minimally invasive procedures, catheterization, cardiac procedures and diagnostic procedures.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	54
catheterization	54
diagnostic procedures	54
doctor visit	94
hospital care	33
inpatient care	33
minimally invasive procedures	54

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	64
Female	160

**Ethnicity**
Non-Hispanic White	150
Black	0
Hispanic	0
Asian	34
Other	0
Native American	0

**Age**
From 65 to 74	76
From 75 to 84	0
85 and over	0
Less than 65	76

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2015

Hypertension	75
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	49
Depression	22
Chronic Kidney Disease	52
Asthma	21
Osteoperosis	0
Atrial Fibrilation	21
Heart Failure	75
Chronic Obstructive Pulmonary Disease	40
Diabetes	38
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2016 were minimally invasive procedures, catheterization, hospital care and cardiac procedures.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	33
catheterization	33
diagnostic procedures	33
doctor visit	31
hospital care	33
inpatient care	33
minimally invasive procedures	33

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	22
Female	47

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

**Age**
From 65 to 74	24
From 75 to 84	0
85 and over	0
Less than 65	28

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2016

Hypertension	64
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	38
Depression	28
Chronic Kidney Disease	57
Asthma	32
Osteoperosis	0
Atrial Fibrilation	17
Heart Failure	71
Chronic Obstructive Pulmonary Disease	30
Diabetes	23
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2017 were minimally invasive procedures, catheterization, cardiac procedures and diagnostic procedures.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	28
catheterization	28
diagnostic procedures	28
doctor visit	37
minimally invasive procedures	28

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	23
Female	43

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

**Age**
From 65 to 74	27
From 75 to 84	0
85 and over	0
Less than 65	25

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2017

Hypertension	70
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	30
Depression	35
Chronic Kidney Disease	45
Asthma	0
Osteoperosis	17
Atrial Fibrilation	21
Heart Failure	73
Chronic Obstructive Pulmonary Disease	36
Diabetes	29
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2018 were hospital care, inpatient care, minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	25
catheterization	25
diagnostic procedures	25
doctor visit	47
hospital care	33
inpatient care	33
minimally invasive procedures	25

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	23
Female	48

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

**Age**
From 65 to 74	27
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2018

Hypertension	72
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	45
Depression	38
Chronic Kidney Disease	56
Asthma	23
Osteoperosis	0
Atrial Fibrilation	25
Heart Failure	72
Chronic Obstructive Pulmonary Disease	27
Diabetes	31
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2019 were minimally invasive procedures, catheterization, cardiac procedures and diagnostic procedures.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	29
catheterization	29
diagnostic procedures	29
doctor visit	48
minimally invasive procedures	29

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	23
Female	45

**Ethnicity**
Non-Hispanic White	43
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	23

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2019

Hypertension	75
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	46
Depression	29
Chronic Kidney Disease	59
Asthma	19
Osteoperosis	0
Atrial Fibrilation	25
Heart Failure	75
Chronic Obstructive Pulmonary Disease	35
Diabetes	31
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2020 were hospital care, inpatient care, minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	23
catheterization	23
diagnostic procedures	23
doctor visit	26
hospital care	38
inpatient care	38
minimally invasive procedures	23

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	11
Female	44

**Ethnicity**
Non-Hispanic White	40
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	28
From 75 to 84	13
85 and over	0
Less than 65	14

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2020

Hypertension	75
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	45
Depression	42
Chronic Kidney Disease	55
Asthma	0
Osteoperosis	0
Atrial Fibrilation	24
Heart Failure	75
Chronic Obstructive Pulmonary Disease	25
Diabetes	38
Dementia	22
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2021 were minimally invasive procedures, catheterization, cardiac procedures and diagnostic procedures.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	31
catheterization	31
diagnostic procedures	31
doctor visit	26
minimally invasive procedures	31

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	18
Female	40

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

**Age**
From 65 to 74	19
From 75 to 84	20
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2021

Hypertension	71
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	52
Depression	33
Chronic Kidney Disease	53
Asthma	0
Osteoperosis	21
Atrial Fibrilation	0
Heart Failure	75
Chronic Obstructive Pulmonary Disease	34
Diabetes	36
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2022 were minimally invasive procedures, catheterization, cardiac procedures and diagnostic procedures.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	23
catheterization	23
diagnostic procedures	23
doctor visit	41
minimally invasive procedures	23

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	21
Female	34

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

**Age**
From 65 to 74	20
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2022

Hypertension	75
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	47
Asthma	0
Osteoperosis	24
Atrial Fibrilation	35
Heart Failure	69
Chronic Obstructive Pulmonary Disease	35
Diabetes	31
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA during 2023 were hospital care, inpatient care, minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

cardiac procedures	20
catheterization	20
diagnostic procedures	20
doctor visit	16
hospital care	40
inpatient care	40
minimally invasive procedures	20

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	16
Female	36

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

**Age**
From 65 to 74	0
From 75 to 84	18
85 and over	0
Less than 65	21

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2023

Hypertension	75
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	25
Depression	23
Chronic Kidney Disease	42
Asthma	23
Osteoperosis	0
Atrial Fibrilation	35
Heart Failure	75
Chronic Obstructive Pulmonary Disease	25
Diabetes	50
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Roham Tahmaseb Zamanian, MD for Medicare patients.

The highest averages for the top procedures that Dr. Roham Tahmaseb Zamanian, MD treated as a pulmonologist in Palo Alto, CA were pulmonary testing, hospital care, inpatient care and minimally invasive procedures.

cardiac procedures	36
catheterization	36
diagnostic procedures	36
doctor visit	51
hospital care	38
inpatient care	38
minimally invasive procedures	36
pulmonary testing	114

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD.

**Gender**
Male	24
Female	59

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	4
Non-Hispanic White	54
Hispanic	4
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	0
75 to 84	5
Less than 65	24
65 to 74	29

Average of Total of Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Roham Tahmaseb Zamanian, MD treated were heart failure, hypertension, high cholesterol and chronic kidney disease.

Hypertension	65
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	37
Depression	27
Chronic Kidney Disease	46
Asthma	13
Osteoporosis	6
Heart Failure	67
Chronic Obstructive Pulmonary Disease	29
Diabetes	31
Atrial Fibrillation	20
Cancer	0
Dementia	1

Education & Training

Dr. Roham Tahmaseb Zamanian, MD graduated from University of California, Irvine, School of Medicine in 1999. He completed residency at University of California, Irvine Affiliated Hospitals. He is certified by the American Board of Internal Medicine, Pulmonary Disease and has a state license in California.

Medical School: University of California, Irvine, School of Medicine (1999)

Residency: University of California, Irvine Affiliated Hospitals (2002)

Board Certification: American Board of Internal Medicine, Pulmonary Disease (2024)

Licensed In: California

Affiliations & Hospitals

Dr. Roham Tahmaseb Zamanian, MD is associated with these hospitals and organizations:

Stanford Health Care

Ratings & Reviews

Dr. Roham Tahmaseb Zamanian, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 2 ratings. We collect ratings and reviews of Dr. Roham Tahmaseb Zamanian, MD from all over the web to help you find the right in Palo Alto, CA.

Overall Rating

(2 Ratings)

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General Payments

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

**Payments by Company**
Actelion Pharmaceuticals US, Inc.	$34,471 UPTRAVI $7,625	OPSUMIT MACITENTAN $7,050	MACITENTAN OPSUMIT--PRO $6,412	OPSUMIT $4,050	VELETRI EPOPROSTENOL $109	Other $9,226
Merck Sharp & Dohme LLC	$15,555 WINREVAIR $1,103	$14,452
Bayer HealthCare Pharmaceuticals Inc.	$14,153 Adempas $14,153
UPJOHN US 1 LLC	$11,544 VIAGRA $11,544
Actelion Pharmaceuticals, Ltd	$11,390 OPSUMIT MACITENTAN $1,399	$9,991
Other	$17,452 QSYMIA $4,584	ORENITRAM $2,463	Letairis $984	TYVASO $615	REMODULIN $207	Other $8,597

**Types of Payments**
Consulting Fee	$83,484
Travel and Lodging	$13,575
Food and Beverage	$4,101
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$3,300
Education	$105

Research Payments

Dr. Roham Tahmaseb Zamanian, MD has received 119 research payments totaling $876,212.

Biography

Dr. Roham Zamanian's specialties are critical care (intensive care medicine) and adult pulmonology. His clinical interests include hereditary hemorrhagic telangiectasia (HHT), pulmonary embolism, and pulmonary hypertension. Dr. Zamanian is a graduate of the University of California, Irvine, School of Medicine. He trained at a hospital affiliated with the University of California, Irvine for his residency. Dr. Zamanian has received the following distinctions: Case Presentation Award, ACCP - Chest 2000; Excellence in Research Award, University of California, Irvine School of Biological Sciences; and Faculty Teaching Award, Dept of Medicine, Stanford. He speaks Persian. He is affiliated with Stanford Health Care.

Select Year:

Dr. Roham Tahmaseb Zamanian, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Roham Tahmaseb Zamanian, MD in 2023

By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Roham Tahmaseb Zamanian, MD From 2012 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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