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Dr. Donald F. Frei, MD

(Dr. Donald Frei, M.D.)

(No ratings)

Specializes in: Interventional Radiology/Diagnostic Radiology (IR/DR), Diagnostic Radiology and Neuroradiology
Professional interests include: stroke, gastrointestinal cancer, brain problems, and more.
499 E Hampden Avenue Suite 380
Englewood, CO 80113

Dr. Donald F. Frei, MD is a radiologist in Englewood, CO specializing in interventional radiology/diagnostic radiology (ir/dr), diagnostic radiology and neuroradiology. Dr. Donald F. Frei, MD is affiliated with HealthOne and HCA HealthONE Swedish.

View Doctor's Full Profile (720) 493-3345

Office Locations

HCA HealthONE Swedish

10700 East Geddes Avenue Suite 200
Englewood, CO 80112
(720) 493-3700
open_in_new
499 E Hampden Avenue Suite 380
Englewood, CO 80113
(720) 493-3345
(720) 874-4437
open_in_new

Some issues Dr. Donald F. Frei, MD 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.

In The News (see more mentions in the news)

“WASHINGTON -- State laws need to require that emergency medical technicians (EMTs) take patients with suspected severe strokes to a hospital with a Level 1 stroke center, even if that's not the...”—"EMS Stroke Protocols Questioned", MedPage Today, January 2020
“Dr. Donald Frei, a stroke surgeon at the Swedish Medical Center in Colorado, calls stroke "the most time sensitive disease we have."”—"Film director's death highlights stroke risk at any age", WCPO Cincinnati, April 2019
“Patients suffering some strokes due to blockages in arteries or other large blood vessels in the brain, though, would benefit most from being taken directly to a hospital designated as...”—"Change to stroke emergency protocols could save lives, Colorado doctor says", The Denver Post, December 2016

Noteworthy Medicare Patient Procedures Performed by Dr. Donald F. Frei, MD in 2023

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

Top 5%

By Volume:

vertebral arteriogram

By Affordability:

CT scan

In 2023, among providers in related specialties within Colorado, Dr. Donald F. Frei, MD performed more vertebral arteriogram procedures for Medicare patients than 95% of them and he also had a list price for CT scan that was lower than the list prices billed to Medicare by 95% 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.

Top 10%

By Volume:

angiogram

In 2023, Dr. Donald F. Frei, MD performed more angiogram (angiography) procedures for Medicare patients than 90% of providers in related specialties within Colorado.

Top 25%

By Volume:

carotid arteriogram
cervicocerebral arteriogram
vascular procedures

In 2012, Dr. Donald F. Frei, MD performed more carotid arteriogram, cervicocerebral arteriogram, and vascular procedures procedures for Medicare patients than 75% of providers in related specialties within Colorado.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2012 were brain imaging (neuroimaging), vascular procedures, CT scan and MRI (magnetic resonance imaging).

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

brain imaging (neuroimaging) 291
CT scan 178
doctor visit 16
MRI (magnetic resonance imaging) 141
spinal procedures 131
thoracic (chest) imaging 72
vascular procedures 217
X-rays 91

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2013 were brain imaging (neuroimaging), CT scan, vascular procedures and MRI (magnetic resonance imaging).

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

brain imaging (neuroimaging) 275
CT scan 232
doctor visit 14
MRI (magnetic resonance imaging) 113
neck imaging 11
spinal procedures 95
thoracic (chest) imaging 38
vascular procedures 200
X-rays 65

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 287
Female 379
Ethnicity
Non-Hispanic White 585
Black 18
Hispanic 43
Asian 0
Other 0
Native American 0
Age
From 65 to 74 226
From 75 to 84 217
85 and over 119
Less than 65 104

Conditions of Medicare patients treated by Dr. Donald F. Frei, MD in 2013

Hypertension 73
High Cholesterol 54
Stroke 21
Ischemic Heart Disease 38
Depression 36
Chronic Kidney Disease 35
Asthma 10
Osteoperosis 14
Atrial Fibrilation 18
Heart Failure 25
Chronic Obstructive Pulmonary Disease 24
Diabetes 27
Dementia 20
Cancer 15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2014 were brain imaging (neuroimaging), CT scan, vascular procedures and spinal procedures.

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

brain imaging (neuroimaging) 181
CT scan 175
doctor visit 13
MRI (magnetic resonance imaging) 83
spinal procedures 85
ultrasound (sonogram) 11
vascular procedures 162
X-rays 11

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 208
Female 271
Ethnicity
Non-Hispanic White 422
Black 0
Hispanic 28
Asian 0
Other 0
Native American 0
Age
From 65 to 74 192
From 75 to 84 138
85 and over 80
Less than 65 69

Conditions of Medicare patients treated by Dr. Donald F. Frei, MD in 2014

Hypertension 73
High Cholesterol 50
Stroke 28
Ischemic Heart Disease 37
Depression 33
Chronic Kidney Disease 33
Asthma 10
Osteoperosis 11
Atrial Fibrilation 18
Heart Failure 22
Chronic Obstructive Pulmonary Disease 24
Diabetes 28
Dementia 20
Cancer 14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2015 were vascular procedures, CT scan, brain imaging (neuroimaging) and spinal procedures.

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

brain imaging (neuroimaging) 125
catheterization 21
CT scan 135
doctor visit 12
hospital care 18
inpatient care 18
minimally invasive procedures 37
MRI (magnetic resonance imaging) 62
spinal procedures 124
thoracic (chest) imaging 14
thrombectomy (blood clot removal) 16
vascular procedures 206
X-rays 45

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 388
Female 524
Ethnicity
Non-Hispanic White 810
Black 26
Hispanic 48
Asian 0
Other 0
Native American 0
Age
From 65 to 74 372
From 75 to 84 232
85 and over 150
Less than 65 158

Conditions of Medicare patients treated by Dr. Donald F. Frei, MD in 2015

Hypertension 71
High Cholesterol 53
Stroke 29
Ischemic Heart Disease 37
Depression 32
Chronic Kidney Disease 31
Asthma 16
Osteoperosis 11
Atrial Fibrilation 16
Heart Failure 21
Chronic Obstructive Pulmonary Disease 18
Diabetes 27
Dementia 21
Cancer 13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2016 were vascular procedures, CT scan, spinal procedures and brain imaging (neuroimaging).

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

brain imaging (neuroimaging) 87
catheterization 19
CT scan 99
minimally invasive procedures 37
MRI (magnetic resonance imaging) 54
spinal procedures 98
stent placement (stenting) 18
ultrasound (sonogram) 16
vascular procedures 151
X-rays 13

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 157
Female 189
Ethnicity
Non-Hispanic White 294
Black 0
Hispanic 23
Asian 0
Other 12
Native American 0
Age
From 65 to 74 142
From 75 to 84 106
85 and over 52
Less than 65 46

Conditions of Medicare patients treated by Dr. Donald F. Frei, MD in 2016

Hypertension 72
High Cholesterol 56
Stroke 28
Ischemic Heart Disease 42
Depression 34
Chronic Kidney Disease 39
Asthma 26
Osteoperosis 10
Atrial Fibrilation 15
Heart Failure 25
Chronic Obstructive Pulmonary Disease 25
Diabetes 26
Dementia 18
Cancer 13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2017 were vascular procedures, minimally invasive procedures, stent placement (stenting) and catheterization.

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

catheterization 15
minimally invasive procedures 32
spinal procedures 15
stent placement (stenting) 17
vascular procedures 215

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 52
Female 63
Ethnicity
Non-Hispanic White 94
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 49
From 75 to 84 34
85 and over 18
Less than 65 14

Conditions of Medicare patients treated by Dr. Donald F. Frei, MD in 2017

Hypertension 75
High Cholesterol 60
Stroke 56
Ischemic Heart Disease 44
Depression 37
Chronic Kidney Disease 29
Asthma 0
Osteoperosis 0
Atrial Fibrilation 18
Heart Failure 28
Chronic Obstructive Pulmonary Disease 26
Diabetes 30
Dementia 17
Cancer 14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2018 were vascular procedures, minimally invasive procedures, stent placement (stenting) and catheterization.

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

catheterization 21
doctor visit 30
hospital care 21
inpatient care 21
minimally invasive procedures 54
spinal procedures 21
stent placement (stenting) 33
vascular procedures 350

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 59
Female 72
Ethnicity
Non-Hispanic White 105
Black 0
Hispanic 13
Asian 0
Other 0
Native American 0
Age
From 65 to 74 59
From 75 to 84 41
85 and over 12
Less than 65 19

Conditions of Medicare patients treated by Dr. Donald F. Frei, MD in 2018

Hypertension 75
High Cholesterol 75
Stroke 58
Ischemic Heart Disease 44
Depression 30
Chronic Kidney Disease 37
Asthma 0
Osteoperosis 0
Atrial Fibrilation 11
Heart Failure 21
Chronic Obstructive Pulmonary Disease 21
Diabetes 31
Dementia 18
Cancer 14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2019 were vascular procedures, minimally invasive procedures, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

brain imaging (neuroimaging) 19
catheterization 16
CT scan 19
doctor visit 16
minimally invasive procedures 30
spinal procedures 16
stent placement (stenting) 14
vascular procedures 268

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 55
Female 65
Ethnicity
Non-Hispanic White 90
Black 0
Hispanic 12
Asian 0
Other 0
Native American 0
Age
From 65 to 74 62
From 75 to 84 31
85 and over 14
Less than 65 13

Conditions of Medicare patients treated by Dr. Donald F. Frei, MD in 2019

Hypertension 0
High Cholesterol 0
Stroke 58
Ischemic Heart Disease 45
Depression 29
Chronic Kidney Disease 43
Asthma 16
Osteoperosis 0
Atrial Fibrilation 15
Heart Failure 25
Chronic Obstructive Pulmonary Disease 26
Diabetes 30
Dementia 17
Cancer 16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2020 were vascular procedures, CT scan, brain imaging (neuroimaging) and minimally invasive procedures.

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

brain imaging (neuroimaging) 35
CT scan 35
doctor visit 17
minimally invasive procedures 14
stent placement (stenting) 14
vascular procedures 207

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 47
Female 61
Ethnicity
Non-Hispanic White 90
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 52
From 75 to 84 38
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Donald F. Frei, MD in 2020

Hypertension 75
High Cholesterol 70
Stroke 64
Ischemic Heart Disease 50
Depression 25
Chronic Kidney Disease 37
Asthma 0
Osteoperosis 0
Atrial Fibrilation 26
Heart Failure 27
Chronic Obstructive Pulmonary Disease 15
Diabetes 27
Dementia 13
Cancer 10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2021 were vascular procedures, CT scan, brain imaging (neuroimaging) and minimally invasive procedures.

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

brain imaging (neuroimaging) 51
catheterization 21
CT scan 51
doctor visit 12
minimally invasive procedures 33
spinal procedures 21
stent placement (stenting) 12
vascular procedures 325

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 50
Female 78
Ethnicity
Non-Hispanic White 103
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 59
From 75 to 84 47
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Donald F. Frei, MD in 2021

Hypertension 75
High Cholesterol 68
Stroke 63
Ischemic Heart Disease 38
Depression 37
Chronic Kidney Disease 48
Asthma 0
Osteoperosis 10
Atrial Fibrilation 20
Heart Failure 29
Chronic Obstructive Pulmonary Disease 23
Diabetes 31
Dementia 16
Cancer 12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO during 2022 were vascular procedures, CT scan, brain imaging (neuroimaging) and minimally invasive procedures.

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

brain imaging (neuroimaging) 34
CT scan 34
doctor visit 15
minimally invasive procedures 14
stent placement (stenting) 14
vascular procedures 215

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 37
Female 62
Ethnicity
Non-Hispanic White 72
Black 0
Hispanic 14
Asian 0
Other 0
Native American 0
Age
From 65 to 74 48
From 75 to 84 34
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Donald F. Frei, MD in 2022

Hypertension 75
High Cholesterol 75
Stroke 73
Ischemic Heart Disease 27
Depression 22
Chronic Kidney Disease 30
Asthma 11
Osteoperosis 16
Atrial Fibrilation 26
Heart Failure 20
Chronic Obstructive Pulmonary Disease 18
Diabetes 27
Dementia 13
Cancer 16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Donald F. Frei, MD for Medicare patients.

The highest averages for the top procedures that Dr. Donald F. Frei, MD treated as a radiologist in Englewood, CO were vascular procedures, brain imaging (neuroimaging), CT scan and MRI (magnetic resonance imaging).

brain imaging (neuroimaging) 122
catheterization 18
CT scan 106
doctor visit 16
hospital care 19
inpatient care 19
minimally invasive procedures 31
MRI (magnetic resonance imaging) 90
neck imaging 11
spinal procedures 67
stent placement (stenting) 17
thoracic (chest) imaging 41
thrombectomy (blood clot removal) 16
ultrasound (sonogram) 13
vascular procedures 228
X-rays 45

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Donald F. Frei, MD.

Gender
Male 121
Female 160
Ethnicity
Black / African American 4
Asian / Pacific Islander 0
Non-Hispanic White 242
Native American / Alaskan Native 0
Hispanic 16
Other 1
Age
75 to 84 83
85 and over 40
Less than 65 38
65 to 74 114

Average of Total of Conditions of Medicare patients treated by Dr. Donald F. Frei, MD From 2012 - 2022

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

Hypertension 60
High Cholesterol 51
Stroke 43
Ischemic Heart Disease 36
Depression 28
Chronic Kidney Disease 32
Asthma 8
Osteoporosis 6
Heart Failure 22
Chronic Obstructive Pulmonary Disease 20
Diabetes 25
Atrial Fibrillation 16
Dementia 15
Cancer 12

Education & Training

He completed residency at Tulane University Affiliated Hospitals. He has a state license in Colorado.

Residency: Tulane University Affiliated Hospitals (1994)

Licensed In: Colorado

Affiliations & Hospitals

Dr. Donald F. Frei, MD is associated with these hospitals and organizations:

HealthOne
HCA HealthONE Swedish

Ratings & Reviews

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General Payments

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

Payments by Company
Penumbra, Inc. $1,612,129 Penumbra Coil 400
$635,669 		Penumbra System
$359,322 		ACE
$121,949 		Benchmark
$106,307 		SMART
$26,197 		Other
$362,686
Stryker Corporation $221,945 Target
$40,454 		SURPASS EVOLVE
$32,918 		Neuroform EZ
$28,672 		Trevo
$20,123 		ATLAS
$14,754 		Other
$85,024
Medical Device Business Services, Inc. $71,483 EMBOTRAP
$8,000 		Enterprise 2
$2,055 		PulseRider
$500 		ENTERPRISE
$42 		EMBOTRAP II Revascularization Device
$18 		Other
$60,868
Genentech USA, Inc. $46,015 Activase
$30,718 		Tnkase
$9,200
$6,097
Siemens Medical Solutions USA, Inc. $44,606 Artis icono
$10,448 		CorPath Imaging System
$3,115 		ARTIS icono biplane
$1,495 		AX Angiography Fluoroscopy Radiology Systems
$1,337 		AX - Angiography Fluoroscopy-Radiology Systems
$700 		Other
$27,510
Other $49,141 IGT Systems Und
$11,168 		Thrombectomy
$7,492 		REVIVE
$7,024 		NEUROLOGICAL PRODUCT
$6,587 		TrelliX
$2,975 		Other
$13,895
Types of Payments
Consulting Fee $1,143,665
Travel and Lodging $430,546
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $223,021
Current or prospective ownership or investment interest $184,800
Food and Beverage $55,308
Other $7,981

Research Payments

Dr. Donald F. Frei, MD has received 179 research payments totaling $488,790.

Ownership and Interest Payments

This table describes ownership payments received by Dr. Donald F. Frei, MD.

Penumbra, Inc. 2014 $184,800.00 Physician Covered Recipient all shares repurchased by Penumbra in May 2014 and no current ownership
Penumbra, Inc. 2013 $108,500.00 Physician Covered Recipient common stock
Viz.ai, Inc. 2022 $24,237.00 Physician Covered Recipient PREFERRED STOCK
Viz.ai, Inc. 2021 $19,632.00 Physician Covered Recipient PREFERRED STOCK

Biography

Dr. Donald Frei's specialties are interventional radiology/diagnostic radiology (IR/DR), neuroradiology, and diagnostic radiology. Clinical interests for Dr. Frei include stroke, liver cancer, and gastrointestinal cancer. He is affiliated with HealthOne. Dr. Frei obtained his medical school training at the University of Cincinnati College of Medicine and performed his residency at a hospital affiliated with Tulane University.

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