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Dr. Gregory George Zaharchuck, PhD, MD

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Specializes in: Diagnostic Radiology and Neuroradiology

Harvard Medical School (2000)

Professional interests include: brain imaging (neuroimaging), diagnostic evaluation

1201 Welch Road #5488
Stanford, CA 94305

(650) 723-4000

Dr. Gregory George Zaharchuck, PhD, MD is a diagnostic radiologist in Stanford, CA specializing in diagnostic radiology and neuroradiology. He graduated from Harvard Medical School in 2000 and has 26 years of experience. Dr. Gregory George Zaharchuck, PhD, MD is affiliated with Stanford Medicine Children's Health and Stanford Health Care.

Office Locations

1201 Welch Road #5488
Stanford, CA 94305

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300 Pasteur Drive
Palo Alto, CA 94305

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300 Pasteur Drive Mc 5105
Stanford, CA 94305

(650) 723-4000

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500 Pasteur Drive 300
Stanford, CA 94304

(650) 723-4000

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In The News

“At Stanford during the summer, Khankari worked with professors Michael E. Moseley and Greg Zaharchuk to study AI in medical imaging, including how AI can decrease treatment time associated with...”—"Oak Brook teen, U.S. Presidential Scholar accepted into mind-boggling 18 universities: I d have to turn down Harvard or Princeton!", Chicago Tribune, May 2022

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory George Zaharchuck, PhD, MD in 2024

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

Top 10%

By Volume:

MRI angiogram

In 2024, Dr. Gregory George Zaharchuck, PhD, MD performed more MRI angiogram (MRA) procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

brain imaging

spine imaging

By Affordability:

maxillofacial CT scan

In 2012, among providers in related specialties within California, Dr. Gregory George Zaharchuck, PhD, MD performed more brain imaging (neuroimaging), and spine imaging procedures for Medicare patients than 75% of them and he also had a list price for maxillofacial (jaw/face) CT scan 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

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2012 were brain imaging (neuroimaging), CT scan, MRI (magnetic resonance imaging) and spinal procedures.

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	777
CT scan	581
eye procedures	27
MRI (magnetic resonance imaging)	469
neck imaging	80
spinal procedures	288
vascular procedures	130

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2013 were brain imaging (neuroimaging), MRI (magnetic resonance imaging), CT scan and spinal procedures.

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	731
CT scan	527
eye procedures	43
MRI (magnetic resonance imaging)	544
neck imaging	80
spinal procedures	318
vascular procedures	106

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Male	408
Female	411

**Ethnicity**
Non-Hispanic White	527
Black	37
Hispanic	94
Asian	133
Other	0
Native American	0

**Age**
From 65 to 74	302
From 75 to 84	235
85 and over	126
Less than 65	156

Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD in 2013

Hypertension	69
High Cholesterol	55
Stroke	17
Ischemic Heart Disease	36
Depression	29
Chronic Kidney Disease	31
Asthma	11
Osteoperosis	11
Atrial Fibrilation	17
Heart Failure	24
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	18
Cancer	17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2014 were brain imaging (neuroimaging), CT scan, MRI (magnetic resonance imaging) and spinal procedures.

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	754
CT scan	543
eye procedures	39
MRI (magnetic resonance imaging)	526
neck imaging	93
spinal procedures	299
vascular procedures	122

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Male	381
Female	442

**Ethnicity**
Non-Hispanic White	540
Black	37
Hispanic	97
Asian	110
Other	0
Native American	0

**Age**
From 65 to 74	300
From 75 to 84	250
85 and over	138
Less than 65	135

Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD in 2014

Hypertension	68
High Cholesterol	57
Stroke	20
Ischemic Heart Disease	33
Depression	32
Chronic Kidney Disease	33
Asthma	12
Osteoperosis	13
Atrial Fibrilation	17
Heart Failure	20
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Dementia	18
Cancer	21

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2015 were brain imaging (neuroimaging), CT scan, MRI (magnetic resonance imaging) and spinal procedures.

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	429
CT scan	299
eye procedures	11
MRI (magnetic resonance imaging)	230
neck imaging	34
spinal procedures	137
vascular procedures	86

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Male	384
Female	462

**Ethnicity**
Non-Hispanic White	584
Black	34
Hispanic	74
Asian	124
Other	0
Native American	0

**Age**
From 65 to 74	276
From 75 to 84	274
85 and over	186
Less than 65	110

Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD in 2015

Hypertension	73
High Cholesterol	54
Stroke	25
Ischemic Heart Disease	36
Depression	34
Chronic Kidney Disease	41
Asthma	13
Osteoperosis	11
Atrial Fibrilation	17
Heart Failure	27
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	25
Cancer	19

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2016 were brain imaging (neuroimaging), CT scan, MRI (magnetic resonance imaging) and spinal procedures.

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	504
CT scan	375
eye procedures	17
MRI (magnetic resonance imaging)	256
neck imaging	45
spinal procedures	163
vascular procedures	97

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Male	228
Female	283

**Ethnicity**
Non-Hispanic White	344
Black	0
Hispanic	43
Asian	74
Other	24
Native American	0

**Age**
From 65 to 74	168
From 75 to 84	153
85 and over	104
Less than 65	86

Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD in 2016

Hypertension	72
High Cholesterol	57
Stroke	23
Ischemic Heart Disease	40
Depression	35
Chronic Kidney Disease	41
Asthma	20
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	27
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	30
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2017 were brain imaging (neuroimaging), CT scan, MRI (magnetic resonance imaging) and spinal procedures.

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	384
CT scan	355
MRI (magnetic resonance imaging)	160
neck imaging	12
spinal procedures	136
vascular procedures	40

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Male	246
Female	218

**Ethnicity**
Non-Hispanic White	325
Black	21
Hispanic	49
Asian	56
Other	0
Native American	0

**Age**
From 65 to 74	163
From 75 to 84	126
85 and over	98
Less than 65	77

Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD in 2017

Hypertension	74
High Cholesterol	56
Stroke	23
Ischemic Heart Disease	38
Depression	32
Chronic Kidney Disease	43
Asthma	11
Osteoperosis	12
Atrial Fibrilation	20
Heart Failure	29
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	30
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Male	252
Female	272

**Ethnicity**
Non-Hispanic White	342
Black	0
Hispanic	53
Asian	80
Other	27
Native American	0

**Age**
From 65 to 74	192
From 75 to 84	154
85 and over	101
Less than 65	77

Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD in 2018

Hypertension	75
High Cholesterol	67
Stroke	27
Ischemic Heart Disease	45
Depression	35
Chronic Kidney Disease	49
Asthma	13
Osteoperosis	14
Atrial Fibrilation	20
Heart Failure	33
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	32
Cancer	21

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2019 were brain imaging (neuroimaging), CT scan, MRI (magnetic resonance imaging) and spinal procedures.

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	718
CT scan	604
eye procedures	18
MRI (magnetic resonance imaging)	355
neck imaging	60
spinal procedures	265
vascular procedures	109

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Male	357
Female	402

**Ethnicity**
Non-Hispanic White	489
Black	0
Hispanic	75
Asian	116
Other	40
Native American	0

**Age**
From 65 to 74	255
From 75 to 84	260
85 and over	155
Less than 65	89

Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD in 2019

Hypertension	75
High Cholesterol	64
Stroke	24
Ischemic Heart Disease	47
Depression	32
Chronic Kidney Disease	49
Asthma	12
Osteoperosis	16
Atrial Fibrilation	20
Heart Failure	32
Chronic Obstructive Pulmonary Disease	13
Diabetes	35
Dementia	35
Cancer	18

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2020 were brain imaging (neuroimaging), CT scan, MRI (magnetic resonance imaging) and spinal procedures.

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	690
CT scan	560
eye procedures	14
MRI (magnetic resonance imaging)	425
neck imaging	69
spinal procedures	335
vascular procedures	130

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2022 were brain imaging (neuroimaging), CT scan, MRI (magnetic resonance imaging) and spinal procedures.

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	843
CT scan	776
eye procedures	22
MRI (magnetic resonance imaging)	415
neck imaging	72
spinal procedures	371
vascular procedures	136

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Male	424
Female	533

**Ethnicity**
Non-Hispanic White	586
Black	34
Hispanic	112
Asian	175
Other	50
Native American	0

**Age**
From 65 to 74	319
From 75 to 84	323
85 and over	220
Less than 65	95

Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	35
Ischemic Heart Disease	36
Depression	31
Chronic Kidney Disease	39
Asthma	16
Osteoperosis	23
Atrial Fibrilation	32
Heart Failure	30
Chronic Obstructive Pulmonary Disease	18
Diabetes	37
Dementia	28
Cancer	23

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2023 were brain imaging (neuroimaging), CT scan, spinal procedures and MRI (magnetic resonance imaging).

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	698
CT scan	671
MRI (magnetic resonance imaging)	295
neck imaging	46
spinal procedures	307
vascular procedures	112

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Male	366
Female	428

**Ethnicity**
Non-Hispanic White	465
Black	0
Hispanic	87
Asian	153
Other	46
Native American	0

**Age**
From 65 to 74	251
From 75 to 84	279
85 and over	189
Less than 65	75

Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	35
Ischemic Heart Disease	38
Depression	35
Chronic Kidney Disease	40
Asthma	15
Osteoperosis	26
Atrial Fibrilation	33
Heart Failure	29
Chronic Obstructive Pulmonary Disease	19
Diabetes	36
Dementia	31
Cancer	25

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA during 2024 were CT scan, brain imaging (neuroimaging), spinal procedures and MRI (magnetic resonance imaging).

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

brain imaging (neuroimaging)	669
CT scan	715
eye procedures	11
MRI (magnetic resonance imaging)	281
neck imaging	39
spinal procedures	352
vascular procedures	98

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Male	346
Female	420

**Ethnicity**
Non-Hispanic White	458
Black	0
Hispanic	82
Asian	142
Other	51
Native American	0

**Age**
From 65 to 74	247
From 75 to 84	277
85 and over	177
Less than 65	65

Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	38
Ischemic Heart Disease	43
Depression	33
Chronic Kidney Disease	42
Asthma	17
Osteoperosis	27
Atrial Fibrilation	35
Heart Failure	34
Chronic Obstructive Pulmonary Disease	21
Diabetes	38
Dementia	31
Cancer	23

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Gregory George Zaharchuck, PhD, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory George Zaharchuck, PhD, MD treated as a diagnostic radiologist in Stanford, CA were brain imaging (neuroimaging), CT scan, MRI (magnetic resonance imaging) and spinal procedures.

brain imaging (neuroimaging)	654
CT scan	546
eye procedures	22
MRI (magnetic resonance imaging)	359
neck imaging	57
spinal procedures	270
vascular procedures	106

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD.

**Gender**
Female	322
Male	282

**Ethnicity**
Black / African American	13
Asian / Pacific Islander	96
Non-Hispanic White	388
Native American / Alaskan Native	0
Hispanic	63
Other	19

**Age**
75 to 84	194
85 and over	124
Less than 65	80
65 to 74	206

Average of Total of Conditions of Medicare patients treated by Dr. Gregory George Zaharchuck, PhD, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Gregory George Zaharchuck, PhD, MD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	60
High Cholesterol	52
Stroke	22
Ischemic Heart Disease	32
Depression	27
Chronic Kidney Disease	34
Asthma	11
Osteoporosis	13
Heart Failure	23
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Atrial Fibrillation	19
Dementia	23
Cancer	16

Education & Training

Dr. Gregory George Zaharchuck, PhD, MD graduated from Harvard Medical School in 2000. He completed residency at University of California, San Francisco (UCSF) Affiliated Hospitals. He is certified by the American Board of Radiology, Diagnostic Radiology and has a state license in California.

Medical School: Harvard Medical School (2000)

Residency: University of California, San Francisco (UCSF) Affiliated Hospitals (2005)

Board Certification: American Board of Radiology, Diagnostic Radiology (2023)

Licensed In: California

Affiliations & Hospitals

Dr. Gregory George Zaharchuck, PhD, MD is associated with these hospitals and organizations:

Stanford Medicine Children's Health

Stanford Health Care

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General Payments

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

**Payments by Company**
Siemens Medical Solutions USA, Inc.	$10,592 MR - MRI $10,465	MI - Molecular Imaging $87	$39
Biogen, Inc.	$7,550 ADUHELM $3,775	$3,775
GE Healthcare	$6,275 Magnetic Resonance Imaging $3,740	$2,535
GUERBET LLC	$1,136 DOTAREM $1,136
FUJIFILM Medical Systems USA, Inc.	$172 WH Products $172
Other	$144 Swoop $102	$42

**Types of Payments**
Travel and Lodging	$11,791
Consulting Fee	$7,683
Compensation for serving as faculty or as a speaker for a non-accredited and noncertified continuing education program	$2,107
Food and Beverage	$1,920
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$1,467
Other	$900

Research Payments

Dr. Gregory George Zaharchuck, PhD, MD has received 5 research payments totaling $243,108.

Biography

Dr. Gregory Zaharchuk, who practices in Palo Alto, CA and Stanford, CA, is a medical specialist in neuroradiology and diagnostic radiology. He graduated from Harvard Medical School and then he performed his residency at a hospital affiliated with the University of California, San Francisco (UCSF). Dr. Zaharchuk's areas of expertise include brain imaging (neuroimaging) and diagnostic evaluation. He has received the following distinctions: Distinguished Investigator Award, The Academy for Radiology & Biomedical Imaging Research; Executive Council Award, American Roentgen Ray Society; and Fellow, American Institute for Medical and Biological Engineering (AIMBE). He is professionally affiliated with Stanford Medicine Children's Health and Stanford Health Care.