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Dr. Michael B. Horowitz, MD

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Specializes in: Neurosurgery
University of Rochester School of Medicine and Dentistry
Professional interests include: brain surgery, stroke, minimally invasive surgery, and more.
1825 Kingsley Avenue Suite 170
Orange Park, FL 32073

Dr. Michael B. Horowitz, MD is a neurosurgeon in Orange Park, FL specializing in neurosurgery. He graduated from University of Rochester School of Medicine and Dentistry. Dr. Michael B. Horowitz, MD is affiliated with HCA Florida Healthcare and HCA Florida Orange Park Hospital.

View Doctor's Full Profile (904) 276-7336

Office Locations

HCA Florida Orange Park Hospital

1825 Kingsley Avenue Suite 170
Orange Park, FL 32073
(904) 276-7336
open_in_new

Some issues Dr. Michael B. Horowitz, MD can help you with:

Hydrocephalus

Normally, the brain is bathed in a liquid called cerebrospinal fluid. This fluid cushions and nurtures the brain cells as it flows around and through the brain. Sometimes, cerebrospinal fluid does not get reabsorbed into the body properly, or a blockage in the brain can stop it from flowing. This causes a buildup of pressure called hydrocephalus. This condition affects a wide range of people, but it is much more prevalent among infants and older adults. Left untreated, hydrocephalus can cause uncomfortable symptoms, such as headaches and blurred vision, and eventually may cause brain damage.

Hydrocephalus is most often treated with an implanted device called a shunt. A shunt is a long, thin tube that is used to drain excess fluid. One end is placed within the brain. The tube runs under the skin, along the neck behind the ear, and to another part of the body where the fluid can be reabsorbed. Most often this is the abdomen, but the chest or other areas can also be used. Shunts have a valve that allows doctors to monitor and control the pressure within the brain. Insertion of a shunt is a surgical procedure that takes one to two hours. Incisions are made in the head and the abdomen, and the shunt is threaded into place before the openings are stitched closed.

In cases where hydrocephalus is caused by a blockage, a procedure called endoscopic third ventriculostomy, or ETV, may be performed. During this procedure, a surgeon makes a dime-sized hole in the skull and uses a thin tube with a camera on the end (called an endoscope) to see inside the brain. The surgeon punctures a hole in the floor of the third ventricle, a fluid-filled space within the brain. The hole provides an opening for cerebrospinal fluid to flow around the blockage, normalizing pressure. The entire procedure usually takes less than an hour and patients can often go home the following day. ETV can provide a permanent and safe alternative to a shunt, but it is only useful for patients whose hydrocephalus is caused by a blockage.

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.

Noteworthy Medicare Patient Procedures Performed by Dr. Michael B. Horowitz, MD in 2023

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

Top 5%

By Affordability:

hospital care
inpatient care
inpatient hospital care

In 2023, Dr. Michael B. Horowitz, MD had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Florida. 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.

Top 25%

By Affordability:

vertebral angiogram
vertebral arteriogram

In 2012, Dr. Michael B. Horowitz, MD had a list price for vertebral angiogram, and vertebral arteriogram that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Florida. 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. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2012 were vascular procedures and brain imaging (neuroimaging).

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

brain imaging (neuroimaging) 57
doctor visit 54
vascular procedures 323

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

hospital care 29
inpatient care 29

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 28
Female 36
Age
From 65 to 74 19
From 75 to 84 27
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2013

Hypertension 75
High Cholesterol 61
Stroke 45
Ischemic Heart Disease 55
Depression 30
Chronic Kidney Disease 30
Asthma 0
Osteoperosis 0
Atrial Fibrilation 17
Heart Failure 28
Chronic Obstructive Pulmonary Disease 20
Diabetes 36
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2014 were vascular procedures, hospital care, inpatient care and nerve procedures.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

decompression surgery 11
doctor visit 46
hospital care 17
inpatient care 17
nerve procedures 11
spinal procedures 11
vascular procedures 74

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 47
Female 49
Age
From 65 to 74 34
From 75 to 84 0
85 and over 0
Less than 65 28

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2014

Hypertension 74
High Cholesterol 59
Stroke 42
Ischemic Heart Disease 51
Depression 36
Chronic Kidney Disease 26
Asthma 11
Osteoperosis 0
Atrial Fibrilation 19
Heart Failure 22
Chronic Obstructive Pulmonary Disease 34
Diabetes 49
Dementia 18
Cancer 11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2015 were vascular procedures.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

doctor visit 30
vascular procedures 40

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 94
Female 76
Age
From 65 to 74 56
From 75 to 84 0
85 and over 0
Less than 65 60

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2015

Hypertension 65
High Cholesterol 62
Stroke 29
Ischemic Heart Disease 29
Depression 33
Chronic Kidney Disease 28
Asthma 29
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 20
Chronic Obstructive Pulmonary Disease 28
Diabetes 35
Dementia 15
Cancer 0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2016 were vascular procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

doctor visit 136
hospital care 11
inpatient care 11
vascular procedures 159

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 85
Female 76
Age
From 65 to 74 56
From 75 to 84 41
85 and over 23
Less than 65 41

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2016

Hypertension 75
High Cholesterol 66
Stroke 37
Ischemic Heart Disease 44
Depression 40
Chronic Kidney Disease 37
Asthma 27
Osteoperosis 10
Atrial Fibrilation 15
Heart Failure 22
Chronic Obstructive Pulmonary Disease 25
Diabetes 39
Dementia 21
Cancer 14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2017 were vascular procedures.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

doctor visit 53
vascular procedures 140

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 51
Female 66
Age
From 65 to 74 49
From 75 to 84 26
85 and over 13
Less than 65 29

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2017

Hypertension 75
High Cholesterol 61
Stroke 37
Ischemic Heart Disease 44
Depression 46
Chronic Kidney Disease 45
Asthma 0
Osteoperosis 0
Atrial Fibrilation 14
Heart Failure 21
Chronic Obstructive Pulmonary Disease 24
Diabetes 48
Dementia 21
Cancer 0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2018 were vascular procedures.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

doctor visit 30
vascular procedures 64

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 25
Female 24
Age
From 65 to 74 21
From 75 to 84 0
85 and over 0
Less than 65 15

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2018

Hypertension 75
High Cholesterol 75
Stroke 35
Ischemic Heart Disease 53
Depression 41
Chronic Kidney Disease 39
Asthma 0
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 27
Chronic Obstructive Pulmonary Disease 29
Diabetes 31
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2019 were vascular procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

hospital care 22
inpatient care 22
vascular procedures 59

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 38
Female 42
Age
From 65 to 74 37
From 75 to 84 25
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2019

Hypertension 75
High Cholesterol 75
Stroke 41
Ischemic Heart Disease 49
Depression 36
Chronic Kidney Disease 44
Asthma 0
Osteoperosis 16
Atrial Fibrilation 21
Heart Failure 20
Chronic Obstructive Pulmonary Disease 23
Diabetes 38
Dementia 24
Cancer 19

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2020 were vascular procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

hospital care 52
inpatient care 52
vascular procedures 154

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 41
Female 63
Ethnicity
Non-Hispanic White 87
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 46
From 75 to 84 32
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2020

Hypertension 75
High Cholesterol 75
Stroke 64
Ischemic Heart Disease 59
Depression 36
Chronic Kidney Disease 56
Asthma 0
Osteoperosis 17
Atrial Fibrilation 30
Heart Failure 41
Chronic Obstructive Pulmonary Disease 28
Diabetes 40
Dementia 34
Cancer 12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2021 were hospital care, inpatient care and vascular procedures.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

hospital care 82
inpatient care 82
vascular procedures 59

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 46
Female 52
Ethnicity
Non-Hispanic White 85
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 30
From 75 to 84 40
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2021

Hypertension 75
High Cholesterol 75
Stroke 67
Ischemic Heart Disease 61
Depression 48
Chronic Kidney Disease 65
Asthma 0
Osteoperosis 0
Atrial Fibrilation 30
Heart Failure 38
Chronic Obstructive Pulmonary Disease 27
Diabetes 45
Dementia 48
Cancer 21

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2022 were vascular procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

hospital care 58
inpatient care 58
vascular procedures 89

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 50
Female 56
Ethnicity
Non-Hispanic White 91
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 34
From 75 to 84 46
85 and over 12
Less than 65 14

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2022

Hypertension 75
High Cholesterol 75
Stroke 70
Ischemic Heart Disease 52
Depression 38
Chronic Kidney Disease 36
Asthma 15
Osteoperosis 0
Atrial Fibrilation 44
Heart Failure 29
Chronic Obstructive Pulmonary Disease 34
Diabetes 50
Dementia 27
Cancer 24

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL during 2023 were hospital care, inpatient care and vascular procedures.

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

doctor visit 13
hospital care 85
inpatient care 85
vascular procedures 48

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 54
Female 56
Ethnicity
Non-Hispanic White 94
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 33
From 75 to 84 46
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD in 2023

Hypertension 75
High Cholesterol 75
Stroke 75
Ischemic Heart Disease 47
Depression 37
Chronic Kidney Disease 42
Asthma 12
Osteoperosis 14
Atrial Fibrilation 35
Heart Failure 25
Chronic Obstructive Pulmonary Disease 37
Diabetes 40
Dementia 35
Cancer 18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Michael B. Horowitz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael B. Horowitz, MD treated as a neurosurgeon in Orange Park, FL were vascular procedures, brain imaging (neuroimaging), hospital care and inpatient care.

brain imaging (neuroimaging) 57
decompression surgery 11
doctor visit 51
hospital care 44
inpatient care 44
nerve procedures 11
spinal procedures 11
vascular procedures 109

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Michael B. Horowitz, MD.

Gender
Male 46
Female 49
Ethnicity
Black / African American 0
Asian / Pacific Islander 0
Non-Hispanic White 29
Hispanic 0
Native American / Alaskan Native 0
Other 0
Age
75 to 84 23
85 and over 4
Less than 65 15
65 to 74 34

Average of Total of Conditions of Medicare patients treated by Dr. Michael B. Horowitz, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Michael B. Horowitz, MD treated were hypertension, high cholesterol, ischemic heart disease and stroke.

Hypertension 67
High Cholesterol 63
Stroke 45
Ischemic Heart Disease 45
Depression 35
Chronic Kidney Disease 37
Asthma 7
Osteoporosis 4
Heart Failure 24
Chronic Obstructive Pulmonary Disease 25
Diabetes 37
Atrial Fibrillation 18
Cancer 9
Dementia 20

Education & Training

Dr. Michael B. Horowitz, MD graduated from University of Rochester School of Medicine and Dentistry. He completed residency at University of Pittsburgh Medical Center (UPMC). He has a state license in Pennsylvania.

Medical School: University of Rochester School of Medicine and Dentistry

Residency: University of Pittsburgh Medical Center (UPMC)

Licensed In: Pennsylvania

Affiliations & Hospitals

Dr. Michael B. Horowitz, MD is associated with these hospitals and organizations:

HCA Florida Healthcare
HCA Florida Orange Park Hospital

Ratings & Reviews

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General Payments

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

Payments by Company
KLS Martin L.P. $158,021 Osteosynthesis
$48,748
$109,274
KLS Martin LP $32,962
$32,962
Medtronic USA, Inc. $878 SpiderFX
$457 		PIPELINE
$421
Stryker Corporation $717 Trevo
$277 		Target
$160 		AXS VECTA
$100 		Adherus Autospray Dural Sealant
$65 		UNIVERSAL NEURO 3
$60 		Other
$54
Inspire Medical Systems, Inc. $666 Inspire
$666
Other $1,027 GammaTile
$289 		Exablate
$202 		ANDEXXA
$104 		Optima Thermal Coil System
$77 		neurovascular
$75 		Other
$279
Types of Payments
Royalty or License $190,798
Food and Beverage $2,595
Education $457
Travel and Lodging $421

Biography

Dr. Michael Horowitz's area of specialization is neurosurgery. He obtained his medical school training at the University of Rochester School of Medicine and Dentistry and performed his residency at the University of Pittsburgh Medical Center (UPMC). His clinical interests include hemifacial spasm, brain aneurysm, and skull base surgery. Dr. Horowitz is professionally affiliated with HCA Florida Healthcare.

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