Dr. Oscar H. Grandas
- Gender: Male
- Experience: 35 years
- Graduation year: 1986
- Sole propriator: Yes
- NPI: 1366550014
Dr. Oscar H. Grandas MD
Vascular Surgeon
He is located at 1940 Alcoa Highway Ste E 120 in Knoxville, TN 37920. Can help patients with the following: Atherosclerosis, Bleeding Varices, Cancer, Cyst, Hemorrhoids, Peripheral Artery Disease (PAD). His National Provider Identifier (NPI) number is 1366550014. Appointment can be made via the phone number (865) 305-8040. He is affiliated with 1 practices and 4 hospitals.
Conditions treated
Dr. Oscar H. Grandas, being an vascular surgeon, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Oscar H. Grandas.
- Abdominal Aortic Aneurysm (AAA)
- Achalasia
- Anal Fissure
- Aneurysm
- Aortic Dissection
- Appendicitis
- Atherosclerosis
- Bleeding Varices
- Blood Clots
- Boils
- Cancer
- Chronic Venous Insufficiency
- Claudication
- Colon Cancer
- Crohn's Disease
- Cyst
- Diverticulosis
- Embolism
- Enlarged Spleen
- Esophageal Cancer
- Gallstones
- Gangrene
- Heart Disease
- Hemorrhoids
- Hernia
- Inflammatory Bowel Disease (IBD)
- Ischemia
- Kidney Transplant
- Liver Transplant
- Lymphedema
- May-Thurner Syndrome
- Pancreas Transplant
- Pancreatitis
- Peptic Ulcer
- Peripheral Artery Disease (PAD)
- Pilonidal Cyst
- Renal Vascular Disease
- Sebaceous Cyst
- Stroke
- Ulcerative Colitis
- Venous Ulcer
Procedures Performed by Dr. Oscar H. Grandas
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Oscar H. Grandas as in-network for the following 2026 plans.
Health plans
BlueCross BlueShield of Tennessee
Network data as of Aug 25, 2026, as reported by the insurer.
Show all 12 plans from BlueCross BlueShield of Tennessee
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| BlueCross B15E $0 virtual care from Teladoc Health® (8 plan variants) | EPO · Bronze | Blue Network E | Accepting new patients |
| BlueCross B16E $50 PCP Copay + $0 virtual care from Teladoc Health® (8 plan variants) | EPO · Expanded Bronze | Blue Network E | Accepting new patients |
| BlueCross B16S $50 PCP Copay + $0 virtual care from Teladoc Health® (8 plan variants) | EPO · Expanded Bronze | Blue Network S | Accepting new patients |
| BlueCross B17E $0 virtual care from Teladoc Health® + Adult Dental (8 plan variants) | EPO · Bronze | Blue Network E | Accepting new patients |
| BlueCross B19E $60 PCP Copay + $0 virtual care from Teladoc Health® (8 plan variants) | EPO · Expanded Bronze | Blue Network E | Accepting new patients |
| BlueCross G08E $30 PCP Copay + $0 virtual care from Teladoc Health ® (8 plan variants) | EPO · Gold | Blue Network E | Accepting new patients |
| BlueCross G08S $30 PCP Copay + $0 virtual care from Teladoc Health ® (8 plan variants) | EPO · Gold | Blue Network S | Accepting new patients |
| BlueCross S26E $40 PCP Copay + $0 virtual care from Teladoc Health® (8 plan variants) | EPO · Silver | Blue Network E | Accepting new patients |
| BlueCross S26S $40 PCP Copay + $0 virtual care from Teladoc Health® (8 plan variants) | EPO · Silver | Blue Network S | Accepting new patients |
| BlueCross S27E $60 PCP Copay + $0 virtual care from Teladoc Health® (8 plan variants) | EPO · Silver | Blue Network E | Accepting new patients |
| BlueCross S29E $60 PCP Copay + $0 virtual care from Teladoc Health® + Adult Dental (8 plan variants) | EPO · Silver | Blue Network E | Accepting new patients |
| BlueCross S34E $45 PCP Copay + $0 virtual care from Teladoc Health® (8 plan variants) | EPO · Silver | Blue Network E | Accepting new patients |
Cigna Healthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 10 plans from Cigna Healthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Connect Bronze 7500 Indiv Med Deductible | EPO · Bronze | Preferred | Accepting new patients |
| Connect Bronze 8500 Indiv Med Deductible | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze CMS Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Gold 1500 Indiv Med Deductible | EPO · Gold | Preferred | Accepting new patients |
| Connect Gold CMS Standard | EPO · Gold | Preferred | Accepting new patients |
| Connect myDiabetesCare Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect myDiabetesCare Silver | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver 3000 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver 4500 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver CMS Standard | EPO · Silver | Preferred | Accepting new patients |
Oscar Insurance Company
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 15 plans from Oscar Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Elite + PCP Saver Plus | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Breathe Easy with Enhanced COPD Benefits | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Chronic Care CKM | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Diabetes | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Gold Classic Standard | EPO · Gold | Preferred | Accepting new patients |
| Gold Elite | EPO · Gold | Preferred | Accepting new patients |
| Silver Classic | EPO · Silver | Preferred | Accepting new patients |
| Silver Classic Standard | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Breathe Easy with Enhanced COPD Benefits | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Chronic Care CKM | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Diabetes | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Women's Health with Menopause Benefits | EPO · Silver | Preferred | Accepting new patients |
UnitedHealthcare
Network data as of Sep 16, 2026, as reported by the insurer.
Show all 12 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus (Virtual Urgent Care, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Copay Focus + (Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential (No Referrals) | EPO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard (No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage (Virtual Urgent Care, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage + (Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus (Virtual Urgent Care, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Advantage (Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Advantage + (Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Copay Focus (Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Oscar H. Grandas is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Oscar H. Grandas is enrolled to bill Medicare as a Practitioner - Vascular Surgery .
Bills through: University Health System, Inc.
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Medtronic | $1766 |
| Covidien | $1152 |
| W. L. Gore \u0026 Associates | $634 |
Other
| Food and Beverage | $4683 |
| Travel and Lodging | $722 |
Studies
Graduated in 1986Additional Specialities
- Surgeon
- Transplant Surgeon
Affiliated hospitals
Looking for more Vascular Surgeons?
There are 9 other vascular surgeons in this region.
- Gender: Male
- Address: Suite 120 1940 Alcoa Highway Knoxville, 37920, TN
- Gender: Male
- Address: Suite 800 101 East Blount Avenue Knoxville, 37920, TN
- Gender: Male
- Address: 1902 Forsyth Street Macon, 31201, GA
- Gender: Male
- Address: Suite 120 1940 Alcoa Highway Knoxville, 37920, TN
- Gender: Male
- Address: Suite E120 1940 Alcoa Highway Knoxville, 37920, TN
- Gender: Male
- Address: 1924 Alcoa Highway Knoxville, 37920, TN
- Gender: Male
- Address: 1924 Alcoa Highway Knoxville, 37920, TN
- Gender: Male
- Address: Suite E120 1940 Alcoa Highway Knoxville, 37920, TN
- Gender: Male
- Address: Suite 800 101 East Blount Avenue Knoxville, 37920, TN
Questions & Answers
Does Dr. Oscar H. Grandas accept patients with BlueCross BlueShield of Tennessee?
Yes, Dr. Oscar H. Grandas is listed in-network for BlueCross BlueShield of Tennessee through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Where can you meet with Dr. Oscar H. Grandas?
Dr. Oscar H. Grandas's office is located at 1940 Alcoa Highway Ste E 120 in Knoxville, TN 37920.
What conditions does Dr. Oscar H. Grandas treat?
Dr. Oscar H. Grandas provides treatment for Atherosclerosis, Bleeding Varices, Cancer, Cyst, Hemorrhoids, Peripheral Artery Disease (PAD). For the full list see this list.
Does Dr. Oscar H. Grandas have affiliation with practices?
Dr. Oscar H. Grandas is affiliated with UT Vascular & Transplant Surgeons.
Has Dr. Oscar H. Grandas affiliation with hospitals?
Dr. Oscar H. Grandas is affiliated with JOHNSON CITY MEDICAL CENTER. For the full list of hospitals see this list.