1. Vascular Surgeons
  2. TN
  3. Knoxville Vascular Surgeons
  4. Dr. Oscar Grandas, MD

Dr. Oscar Grandas, MD

Vascular Surgery •  Male • Age 56
  
Dr. Grandas
Arteriovenous Malformation (AVM), Peripheral Vascular Disorders, and More

University of Tennessee Medical Center

1924 Alcoa Hwy # U-11 Knoxville, TN 37920

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(865) 305-6050

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(865) 305-6050

Dr. Oscar Grandas, MD is a vascular surgery specialist in Knoxville, TN and has been practicing for 20 years. He graduated from U Natl de Colombia, Bogota in 1986 and specializes in vascular surgery.

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At a Glance

  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. • See hospitals
  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ • See hospitals

Insurance Check

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Dr. Grandas accepts

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(865) 305-6050

Dr. Grandas accepts the following insurance:

Aetna
Choice Plus POS II
Blue Cross Blue Shield
Blue Card PPO
Cigna
Cigna HMO
Cigna PPO
LocalPlus
Open Access Plus
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Humana
Choice Care PPO
MultiPlan
MultiPlan PPO
PHCS Network PPO

Background Check

No malpractice claims found for Tennessee
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Practice Areas

Arteriovenous Malformation (AVM)

Arteriovenous malformation (AVM) specialists diagnose and treat abnormal blood vessel connections between arteries and veins that result in damage or death of body tissue and nerve cells.

Typically treats 94% more than their peers

Based on claims data for 1 condition or procedure

TreatmentsTreatment Frequency
Arteriovenous Shunt Creation
very high
very high

Treatment Frequency

Dr. Grandas performs Arteriovenous Shunt Creation more than 94% of their peers

Dr. Grandas performs this procedure more than 94% of their peers

Peripheral Vascular Disorders

Peripheral vascular disorder specialists diagnose and treat narrowing or blockages in the blood vessels outside the heart, most commonly caused by atherosclerosis, a buildup of plague inside the blood vessel wall.

Typically treats 75% more than their peers

Based on claims data for 14 conditions and procedures

TreatmentsTreatment Frequency
Peripheral Vascular Disease (PAD, PVD)
very high
very high

Treatment Frequency

Dr. Grandas treats Peripheral Vascular Disease (PAD, PVD) more than 100% of their peers

Dr. Grandas treats this condition more than 100% of their peers

Venous Embolism and Thrombosis
very high
very high

Treatment Frequency

Dr. Grandas treats Venous Embolism and Thrombosis more than 94% of their peers

Dr. Grandas treats this condition more than 94% of their peers

Chronic Deep Vein Thrombosis (DVT)
very high
very high

Treatment Frequency

Dr. Grandas treats Chronic Deep Vein Thrombosis (DVT) more than 94% of their peers

Dr. Grandas treats this condition more than 94% of their peers

View all Peripheral Vascular Disorders treatments

Aortic Aneurysm or Dissection

Aortic aneurym or dissection specialists diagnose and treat abnormal bulges or tears in the wall of the aorta, which are life-threatening and require immediate surgery.

Typically treats 68% more than their peers

Based on claims data for 3 conditions and procedures

TreatmentsTreatment Frequency
Aortic Aneurysm
very high
very high

Treatment Frequency

Dr. Grandas treats Aortic Aneurysm more than 96% of their peers

Dr. Grandas treats this condition more than 96% of their peers

Abdominal Aortic Aneurysm (AAA)
high
high

Treatment Frequency

Dr. Grandas treats Abdominal Aortic Aneurysm (AAA) more than 83% of their peers

Dr. Grandas treats this condition more than 83% of their peers

Aortic Dissection
normal
normal

Treatment Frequency

Dr. Grandas treats Aortic Dissection more than 25% of their peers

Dr. Grandas treats this condition more than 25% of their peers

Vascular Surgery

Vascular surgery is a subspecialty of general surgery that focuses on treating conditions of the lymphatic system and blood vessels outside the heart and brain.

Typically treats 74% more than their peers

Based on claims data for 3 conditions and procedures

TreatmentsTreatment Frequency
Vascular Duplex Ultrasonography and Plethysmography
very high
very high

Treatment Frequency

Dr. Grandas performs Vascular Duplex Ultrasonography and Plethysmography more than 96% of their peers

Dr. Grandas performs this procedure more than 96% of their peers

Vascular Surgical Procedure
very high
very high

Treatment Frequency

Dr. Grandas performs Vascular Surgical Procedure more than 95% of their peers

Dr. Grandas performs this procedure more than 95% of their peers

Arteriovenous Shunt Creation
very high
very high

Treatment Frequency

Dr. Grandas performs Arteriovenous Shunt Creation more than 94% of their peers

Dr. Grandas performs this procedure more than 94% of their peers

View all Vascular Surgery treatments
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Check Dr. Grandas' experience treating your condition or procedure

Dr. Grandas' Top Procedures and Conditions

Treatment Frequency
Peripheral Vascular Disease (PAD, PVD)
very high
very high

Treatment Frequency

Dr. Grandas treats Peripheral Vascular Disease (PAD, PVD) more than 100% of his peers

Dr. Grandas treats this condition more than 100% of his peers

Rating Includes other areas of care:

  • Atherosclerosis
  • Autoimmune Atherosclerosis
  • Buerger's Disease
  • Carotid Atherosclerosis
  • Coronary Artery Calcification
  • Coronary Artery Disease (CAD)
  • Coronary Artery Disease, Autosomal Dominant 1
  • Coronary Artery Disease, Autosomal Dominant 2
  • Coronary Atherosclerosis
  • Raynaud's Disease
  • Renal Artery Arteriosclerotic Disease
Hide other areas of care
>Learn more about Peripheral Vascular Disease (PAD, PVD)
Thrombosis
very high
very high

Treatment Frequency

Dr. Grandas treats Thrombosis more than 98% of his peers

Dr. Grandas treats this condition more than 98% of his peers

Rating Includes other areas of care:

  • Aortic Embolism and Thrombosis
  • Arterial Thrombosis
  • Budd-Chiari Syndrome
  • Cerebral Artery Thrombosis
  • Deep Vein Thrombosis (DVT)
  • Effort Vein Thrombosis
  • Intracranial Venous Thrombosis
  • Peripheral Arterial Embolism and Thrombosis
  • Portal Vein Thrombosis
  • Renal Vein Thrombosis
  • Thromboembolism
  • Venous Embolism and Thrombosis
  • Venous Thrombosis
Hide other areas of care
Vascular Disease
very high
very high

Treatment Frequency

Dr. Grandas treats Vascular Disease more than 97% of his peers

Dr. Grandas treats this condition more than 97% of his peers

Learn more about experience ratings

Dr. Grandas' conditions and procedures:

  • Abdominal Aortic Aneurysm (AAA)
  • Acute Deep Vein Thrombosis (DVT)
  • Acute Venous Embolism Thrombosis
  • Aneurysm
  • Aortic Aneurysm
  • Aortic Dissection
  • Aortic Ectasia
  • Aortic Embolism and Thrombosis
  • Aortic Repair, Open or Repair of Arterial Aneurysm, Open
  • Arteriovenous Fistula Repair
  • Arteriovenous Shunt Creation
  • Atherosclerosis
  • Atherosclerosis of Aorta
  • Brachial Plexus Palsy
  • Carotid Artery Disease
  • Carotid Artery Stent Placement
  • Carotid Endarterectomy (CEA) or Excision of Infected Graft
  • Chronic Deep Vein Thrombosis (DVT)
  • Chronic Venous Embolism Thrombosis
  • Congenital Heart Defects
  • Deep Vein Thrombosis (DVT)
  • Dialysis Access Procedures
  • Dressing and-or Debridement of Wound, Infection, or Burn (incl. Negative Pressure Wound Therapy)
  • Embolectomy, Thrombectomy, or Vessel Exploration
  • Endovascular Repair of Abdominal Aortic Aneurysm
  • Endovascular Repair of Aorta
  • Endovascular Repair of Visceral Aorta
  • Heart Disease
  • Heart Surgery
  • Hypertensive Encephalopathy
  • Laparotomy
  • Lung Surgery
  • Median Arcuate Ligament Syndrome (MALS)
  • Non-Coronary Angioplasty, Atherectomy, and Stenting
  • Peripheral Arterial Aneurysm
  • Peripheral Arterial Aneurysm and Dissection
  • Peripheral Arterial Disease of Extremities
  • Peripheral Arterial Dissection
  • Peripheral Arterial Embolism and Thrombosis
  • Peripheral Artery Bypass
  • Peripheral Artery Catheterization
  • Peripheral Autonomic Neuropathy
  • Peripheral Nerve Disorders
  • Peripheral Vascular Disease (PAD, PVD)
  • Phlebitis and Thrombophlebitis
  • Port Placements or Replacements
  • Removal of Arteriovenous Shunt for Renal Dialysis
  • Renal Artery Arteriosclerotic Disease
  • Revision of Arteriovenous Shunt for Renal Dialysis
  • Ruptured Aortic Aneurysm
  • Secondary Hypertension
  • Thoracoabdominal Aortic Aneurysm
  • Thromboendarterectomy or Excision of Infected Graft
  • Thrombosis
  • Transient Ischemic Attack (TIA)
  • Varicose Veins
  • Vascular Disease
  • Vascular Duplex Ultrasonography and Plethysmography
  • Vascular Surgical Procedure
  • Vascular Transcatheter Embolization
  • Venous Compression
  • Venous Embolism and Thrombosis
  • Venous Insufficiency
  • Venous Sclerotherapy
  • Video-Assisted Thoracoscopic Surgery (VATS) or Thoracotomy

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Dr. Grandas' Reviews

Likelihood to recommend Dr. Grandas

4.4

Based on 7 reviews

5 Stars
85.71428571428571%
(6)
4 Stars
0%
(0)
3 Stars
0%
(0)
2 Stars
0%
(0)
1 Star
14.285714285714286%
(1)

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Average Reported Wait Time
  • 10 – 15 minutes
Dr. Grandas' Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Oscar Grandas, MD
RecentHighestLowestMost Helpful
Reply Flag
Dr. Oscar Grandas performed a herograft on my right arm. I am 90, female, and 11 years if dialysis. Professional, skilled, compassionate, and thorough are only a few if the words to describe this gifted vascular surgeon. He has allowed me to continue my dialysis and live my life. He is a gift to any one needing a skilled vascular surgeon! He is simply the best. U.T. is so very fortunate to have his services. Thank you Dr. Grandas.
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Apr 17, 2019
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Excellent doctor has gone over and above taking care of me.
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Scotty in Knoxville, TN – Apr 20, 2016
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He did my husband's kidney transplant he is very good at what he does. He is encouraging and Profesional
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Deana musser in jefferson city tn – Dec 18, 2015
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About Me

Biography

Dr. Oscar Grandas, MD is a vascular surgery specialist in Knoxville, TN and has been practicing for 20 years. He graduated from U Natl de Colombia, Bogota in 1986 and specializes in vascular surgery.

Specialties

  • Vascular Surgery

Board Certifications

  • General Surgery
  • Vascular Surgery
Learn why a board certification matters

Education

2000
University of Tennessee Memorial Hospital
Fellowship Hospital
1998
Washington Hospital Center
Fellowship Hospital
1997
University TN
Residency Hospital
1994
Washington Hospital Center
Residency Hospital
1993
Washington Hospital Center
Internship Hospital
1986
U Natl de Colombia, Bogota
Medical School

Awards

  • Healthgrades Honor Roll
Learn more about recognized doctors

Frequently Asked Questions

Does Dr. Oscar Grandas, MD accept my insurance?

What are Dr. Oscar Grandas, MD's top areas of care?

Where is Dr. Oscar Grandas, MD's office located?

Locations

Practice

University of Tennessee Medical Center1924 Alcoa Hwy # U-11 Knoxville, TN 37920
1
University Vascular Surgeons1940 Alcoa Hwy Ste E120 Knoxville, TN 37920
2

Affiliated Hospitals

Check the quality of care at hospitals where Dr. Grandas treats patients.

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University of Tennessee Medical Center

Knoxville, TN

76% Patient experience rating, 7% higher than the national average

  • America's 250 Best Hospitals Award™ (2020)
  • Outstanding Patient Experience Award™ (2018, 2017)