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Dr. Lakshminarayan Srinivasan, MD, PhD

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Specializes in: Diagnostic Radiology and Neuroradiology

Harvard Medical School (2009)

Professional interests include: stroke, X-rays, myelogram (spinal cord imaging), and more.

500 Redwood Boulevard Suite 300
Novato, CA 94947

(415) 884-3415

Dr. Lakshminarayan Srinivasan, MD, PhD is a diagnostic radiologist in San Francisco, CA specializing in diagnostic radiology and neuroradiology. He graduated from Harvard Medical School in 2009 and has 16 years of experience. Dr. Lakshminarayan Srinivasan, MD, PhD is affiliated with NewYork-Presbyterian, El Camino Health, Sutter Health, Weill Cornell Medicine, Marin General Hospital and SILICON VALLEY DIAGNOSTIC IMAGING INC.

Office Locations

Address:

1101 Van Ness Avenue
San Francisco, CA 94109

Address:

2330 Utah Avenue
El Segundo, CA 90245

Address:

500 Redwood Boulevard Suite 300
Novato, CA 94947

Unable to locate address.

Address:

506 6th Street
Brooklyn, NY 11215

Address:

525 East 68th Street
New York, NY 10065

Some issues Dr. Lakshminarayan Srinivasan, MD, PhD can help you with:

Stroke

A stroke is a medical emergency that occurs when a blood vessel supplying oxygen and nutrients to the brain is ruptured or blocked. The brain cannot function without a steady supply of oxygen and nutrients, so when the blood supply to the brain is interrupted, even for a brief moment, brain cells begin to die. When a sufficient number of brain cells die, the brain itself can no longer function, meaning that strokes are very dangerous. Strokes can result in impaired movement, speech, cognitive ability, the impairment of important physical functions, and even death.

Anyone can have a stroke, regardless of age and health. Strokes are known to happen at random. However, certain conditions and behaviors can increase one's risk of stroke over time.

Risk factors for stroke include:

Heart disease
Older age
Smoking
Diabetes
High blood pressure
High blood cholesterol and lipids

There are two main types of stroke: ischemic stroke and hemorrhagic stroke. Ischemic stroke occurs more commonly and is when a blood vessel in the brain becomes blocked. Blockages are caused by blood clots and built-up plaque (deposits of fat and cholesterol), which leads to atherosclerosis, a condition where the blood vessels narrow and harden. The resultant restricted blood flow may lead to an ischemic stroke by blocking essential oxygen to the brain, causing the heart to exert more effort to pump blood.

Hemorrhagic stroke occurs when a blood vessel in or around the brain ruptures. The burst vessel leaks blood into surrounding brain tissue, causing irreparable brain damage.

Hemorrhagic strokes are less common and may occur from head injuries, brain aneurysms, brain tumors, and bleeding disorders, amongst other conditions.

Both ischemic and hemorrhagic strokes require immediate medical treatment. Medical intervention can prevent severe and life-threatening brain damage. Signs of stroke include:

-Disorientation or confusion

-Difficulty speaking

-Difficulty walking

-Impaired vision

-Weakness in the face, legs, or arms

-Severe headaches

When someone suspected of having a stroke reaches the hospital, the patient will usually receive a CT or other scan that provides an image of the brain. The scan results can reveal clotted or leaking blood in the brain. Physical exams, neurological exams, and blood tests may also be used to check for blood clotting and sugar. Treatment begins generally immediately if a stroke is detected.

Medical treatment for ischemic strokes includes a thrombolytic medicine which breaks up and disperses blood clots. This medicine can greatly improve stroke recovery and long-term health. However, the thrombolytic medicine must be administered as soon as possible to achieve these results. Other treatments for ischemic strokes are blood thinners and thrombectomy, a surgical procedure to remove a blood clot in the brain. Thrombectomy is performed by inserting a catheter (thin needle) into the artery to reach the blood clot and mechanically remove it. With the clot removed, normal blood flow to the brain resumes. Thrombectomy is typically performed at most six hours after a patient shows signs of a stroke.

Hemorrhagic strokes are treated with blood-saving medication and surgery. For a hemorrhagic stroke caused by the rupture of an aneurysm (blood vessel bulges), surgery to stem the bleeding aneurysm and vessel may be used. One surgical technique is stent-assisted coiling, which adds a stent (small wire-meshed tube) into the blood vessel to block the leaking opening of the aneurysm. A non-surgical procedure is endovascular coiling, where a catheter (thin, hollow needle) places a platinum wire coil at the spot of the aneurysm. The coil blocks bleeding and prevents the aneurysm from continuing to leak blood. These procedures are usually combined with blood-thickening medications. Blood transfusions may be administered if substantial blood loss has occurred.

Since stroke patients may have lost some essential functions while the blood flow to their brains was obstructed, both ischemic stroke and hemorrhage stroke patients may receive post-stroke rehabilitation to rebuild their physical and mental abilities. Some restorative treatments include occupational, physical, and speech therapy. Patients may also receive care from neurologists, who can assist patients in recovering certain brain functions and cognitive abilities, and rehabilitation psychologists, who may help patients with their emotional, behavioral, and cognitive recovery. Some stroke patients require lengthy rehabilitation and may never fully regain function, while others may recover more quickly. While the fastest recovery improvements are usually seen in the first three or four months, stroke rehabilitation can last for years.

If someone begins to show signs of stroke, contact emergency services and call 9-1-1 immediately since blood flow must be restored as soon as possible to help avoid significant brain damage. If an ambulance takes the person to the hospital, paramedics can initiate stroke treatment as soon as the patient enters the ambulance, allowing for more prompt medical intervention and care.

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

Hypertension	75
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	68
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	44
Dementia	0
Cancer	0

abdominal imaging	189
brain imaging (neuroimaging)	262
breast procedures	69
CT scan	435
MRI (magnetic resonance imaging)	91
musculoskeletal imaging	9
neck imaging	7
pelvic imaging	176
preventive care	56
spinal procedures	59
thoracic (chest) imaging	545
ultrasound (sonogram)	119
vascular procedures	33
women's imaging	80
X-rays	542

**Gender**
Male	513
Female	772

**Ethnicity**
Non-Hispanic White	915
Black	80
Hispanic	113
Asian	142
Other	0
Native American	0

**Age**
From 65 to 74	458
From 75 to 84	397
85 and over	292
Less than 65	138

Hypertension	75
High Cholesterol	62
Stroke	14
Ischemic Heart Disease	41
Depression	29
Chronic Kidney Disease	46
Asthma	28
Osteoperosis	13
Atrial Fibrilation	21
Heart Failure	31
Chronic Obstructive Pulmonary Disease	23
Diabetes	34
Dementia	22
Cancer	17

abdominal imaging	312
brain imaging (neuroimaging)	372
breast procedures	89
CT scan	639
diagnostic imaging	10
MRI (magnetic resonance imaging)	98
musculoskeletal imaging	49
pelvic imaging	252
preventive care	64
spinal procedures	102
thoracic (chest) imaging	1422
ultrasound (sonogram)	193
vascular procedures	71
women's imaging	101
X-rays	1536

**Gender**
Male	936
Female	1329

**Ethnicity**
Non-Hispanic White	1426
Black	283
Hispanic	222
Asian	266
Other	0
Native American	0

**Age**
From 65 to 74	696
From 75 to 84	724
85 and over	553
Less than 65	292

Hypertension	75
High Cholesterol	56
Stroke	13
Ischemic Heart Disease	42
Depression	30
Chronic Kidney Disease	53
Asthma	14
Osteoperosis	12
Atrial Fibrilation	23
Heart Failure	39
Chronic Obstructive Pulmonary Disease	27
Diabetes	38
Dementia	26
Cancer	15

abdominal imaging	233
brain imaging (neuroimaging)	350
breast procedures	14
CT scan	637
MRI (magnetic resonance imaging)	108
musculoskeletal imaging	53
neck imaging	24
pelvic imaging	228
preventive care	16
spinal procedures	122
thoracic (chest) imaging	108
ultrasound (sonogram)	116
vascular procedures	85
women's imaging	13
X-rays	156

**Gender**
Male	946
Female	1254

**Ethnicity**
Non-Hispanic White	1502
Black	0
Hispanic	168
Asian	370
Other	92
Native American	0

**Age**
From 65 to 74	639
From 75 to 84	735
85 and over	675
Less than 65	151

Hypertension	75
High Cholesterol	65
Stroke	13
Ischemic Heart Disease	47
Depression	31
Chronic Kidney Disease	51
Asthma	11
Osteoperosis	15
Atrial Fibrilation	26
Heart Failure	38
Chronic Obstructive Pulmonary Disease	20
Diabetes	35
Dementia	27
Cancer	19

abdominal imaging	104
brain imaging (neuroimaging)	315
CT scan	392
MRI (magnetic resonance imaging)	100
musculoskeletal imaging	28
neck imaging	33
pelvic imaging	143
spinal procedures	87
thoracic (chest) imaging	26
vascular procedures	69
X-rays	101

**Gender**
Male	462
Female	598

**Ethnicity**
Non-Hispanic White	550
Black	288
Hispanic	100
Asian	79
Other	0
Native American	0

**Age**
From 65 to 74	302
From 75 to 84	336
85 and over	286
Less than 65	136

Hypertension	75
High Cholesterol	74
Stroke	20
Ischemic Heart Disease	65
Depression	37
Chronic Kidney Disease	61
Asthma	15
Osteoperosis	17
Atrial Fibrilation	25
Heart Failure	50
Chronic Obstructive Pulmonary Disease	25
Diabetes	55
Dementia	36
Cancer	18

abdominal imaging	101
brain imaging (neuroimaging)	154
CT scan	248
MRI (magnetic resonance imaging)	32
musculoskeletal imaging	12
neck imaging	8
pelvic imaging	120
spinal procedures	33
ultrasound (sonogram)	25
vascular procedures	46
X-rays	14

**Gender**
Male	477
Female	578

**Ethnicity**
Non-Hispanic White	604
Black	187
Hispanic	118
Asian	106
Other	40
Native American	0

**Age**
From 65 to 74	323
From 75 to 84	359
85 and over	256
Less than 65	117

Hypertension	75
High Cholesterol	72
Stroke	15
Ischemic Heart Disease	55
Depression	33
Chronic Kidney Disease	60
Asthma	13
Osteoperosis	15
Atrial Fibrilation	22
Heart Failure	45
Chronic Obstructive Pulmonary Disease	23
Diabetes	48
Dementia	32
Cancer	18

abdominal imaging	10
brain imaging (neuroimaging)	193
CT scan	55
MRI (magnetic resonance imaging)	292
musculoskeletal imaging	13
pelvic imaging	22
spinal procedures	152
vascular procedures	5
X-rays	13

Average Medicare Procedure Volume From 2015 - 2021

Volume of procedures performed by Dr. Lakshminarayan Srinivasan, MD, PhD for Medicare patients.

The highest averages for the top procedures that Dr. Lakshminarayan Srinivasan, MD, PhD treated as a diagnostic radiologist in San Francisco, CA were thoracic (chest) imaging, CT scan, X-rays and brain imaging (neuroimaging).

abdominal imaging	161
brain imaging (neuroimaging)	276
breast procedures	58
CT scan	407
diagnostic imaging	10
MRI (magnetic resonance imaging)	121
musculoskeletal imaging	30
neck imaging	20
pelvic imaging	159
preventive care	45
spinal procedures	96
thoracic (chest) imaging	527
ultrasound (sonogram)	117
vascular procedures	54
women's imaging	66
X-rays	404

Average Medicare Patient Data From 2015 - 2021

Information about Medicare patients treated by Dr. Lakshminarayan Srinivasan, MD, PhD.

**Gender**
Female	453
Male	333

**Ethnicity**
Black / African American	83
Asian / Pacific Islander	96
Non-Hispanic White	502
Hispanic	72
Native American / Alaskan Native	0
Other	13

**Age**
85 and over	206
75 to 84	255
Less than 65	83
65 to 74	241

Average of Total of Conditions of Medicare patients treated by Dr. Lakshminarayan Srinivasan, MD, PhD From 2015 - 2021

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

Hypertension	45
High Cholesterol	39
Stroke	7
Ischemic Heart Disease	25
Depression	16
Chronic Kidney Disease	33
Asthma	8
Osteoporosis	7
Heart Failure	20
Chronic Obstructive Pulmonary Disease	11
Diabetes	25
Atrial Fibrillation	11
Dementia	14
Cancer	8

Education & Training

Dr. Lakshminarayan Srinivasan, MD, PhD graduated from Harvard Medical School in 2009. He completed residency at University of California, Los Angeles (UCLA) Affiliated Hospitals. He is certified by the Diagnostic Radiology and has a state license in New York.

Medical School: Harvard Medical School (2009)

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

Board Certification: Diagnostic Radiology

Licensed In: New York

Affiliations & Hospitals

Dr. Lakshminarayan Srinivasan, MD, PhD is associated with these hospitals and organizations:

NewYork-Presbyterian

El Camino Health

Sutter Health

Weill Cornell Medicine

Marin General Hospital

SILICON VALLEY DIAGNOSTIC IMAGING INC

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General Payments

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

**Payments by Company**
Scientia Vascular	$79 $79

**Types of Payments**
Food and Beverage	$79

Biography

Dr. Lakshminarayan Srinivasan practices neuroradiology and diagnostic radiology. Dr. Srinivasan graduated from Harvard Medical School and then he performed his residency at a hospital affiliated with the University of California, Los Angeles (UCLA). Areas of expertise for Dr. Srinivasan include brain aneurysm, myelogram (spinal cord imaging), and brain MRI. He is professionally affiliated with Weill Cornell Medicine, California Pacific Medical Center (CPMC), and Marin General Hospital. Dr. Srinivasan's practice in El Segundo, CA is open to new patients as reported by El Camino Health.