Dr. Gregory A. Thomas
- Gender: Male
- Experience: 33 years
- Graduated from: Wayne State University School Of Medicine
- Graduation year: 1988
- Sole propriator: No
- NPI: 1083624357
Dr. Gregory A. Thomas M.D.
Cardiothoracic Surgeon
He is located at 201 Sivley Road Southwest Suite 300 in Huntsville, AL 35801. Can help patients with the following: Anal Fissure, Collapsed Lung, Crohn's Disease, Pancreatitis, Thoracic Outlet Syndrome (TOS), Ventricular Septal Defect (VSD). His National Provider Identifier (NPI) number is 1083624357. Appointment can be made via the phone number (256) 536-5594. He is affiliated with 2 practices and 3 hospitals.
Conditions treated
Dr. Gregory Allen Thomas, being an cardiothoracic 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. Gregory A. Thomas.
- Abdominal Aortic Aneurysm (AAA)
- Achalasia
- Anal Fissure
- Aneurysm
- Aortic Dissection
- Aortic Stenosis
- Appendicitis
- Atherosclerosis
- Bleeding Varices
- Blood Clots
- Boils
- Cancer
- Chronic Venous Insufficiency
- Claudication
- Collapsed Lung
- Colon Cancer
- Crohn's Disease
- Cyst
- Diverticulosis
- Embolism
- Enlarged Spleen
- Esophageal Cancer
- Gallstones
- Gangrene
- Heart Disease
- Hemorrhoids
- Hernia
- Inflammatory Bowel Disease (IBD)
- Ischemia
- Lymphedema
- May-Thurner Syndrome
- Pancreatitis
- Peptic Ulcer
- Peripheral Artery Disease (PAD)
- Pilonidal Cyst
- Renal Vascular Disease
- Sebaceous Cyst
- Stroke
- Thoracic Outlet Syndrome (TOS)
- Ulcerative Colitis
- Venous Ulcer
- Ventricular Septal Defect (VSD)
Procedures Performed by Dr. Gregory A. Thomas
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Gregory A. Thomas as in-network for the following 2026 plans.
Health plans
Ambetter of Alabama
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 18 plans from Ambetter of Alabama
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Complete Gold | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Elite Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elite Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elite Gold | EPO · Gold | Preferred | Accepting new patients |
| Elite Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Enhanced Diabetes Care Silver with $0 Drug Options | EPO · Silver | Preferred | Accepting new patients |
| Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Everyday Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Focused Silver | EPO · Silver | Preferred | Accepting new patients |
| Focused Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Standard Expanded Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Gold | EPO · Gold | Preferred | Accepting new patients |
| Standard Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Silver | EPO · Silver | Preferred | Accepting new patients |
| Standard Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
UnitedHealthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 13 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, 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 Bronze Standard+ (Dental + Vision, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage ($0 Virtual Urgent Care, $5 Tier 2 Rx, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage+ ($0 Virtual Urgent Care, $5 Tier 2 Rx, Dental + Vision, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $5 Tier 2 Rx, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value ($0 Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value+ ($0 Virtual Urgent Care, Dental + Vision, 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. Gregory A. Thomas 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. Gregory A. Thomas is enrolled to bill Medicare as a Practitioner - Thoracic Surgery (also registered under: Practitioner - General Surgery, Practitioner - Vascular Surgery) .
Bills through: University Of Alabama Health Services Foundation, Pc
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
| Intuitive Surgical | $3780 |
| Edwards Lifesciences | $1695 |
| Medtronic | $1040 |
Other
| Food and Beverage | $4306 |
| Travel and Lodging | $3817 |
| Other | $25 |
Studies
WAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated in 1988Additional Specialities
- Surgeon
- Vascular Surgeon
Affiliated hospitals
Looking for more Cardiothoracic Surgeons?
There are 6 other cardiothoracic surgeons in this region.
- Gender: Male
- Address: Suite 300 201 Sivley Road Southwest Huntsville, 35801, AL
- Gender: Male
- Address: Suite 300 201 Sivley Road Southwest Huntsville, 35801, AL
- Gender: Male
- Address: Suite 300 201 Sivley Road Southwest Huntsville, 35801, AL
- Gender: Male
- Address: Suite 300 201 Sivley Road Southwest Huntsville, 35801, AL
- Gender: Male
- Address: Suite 300 201 Sivley Road Southwest Huntsville, 35801, AL
- Gender: Male
- Address: 1840 Medical Center Parkway Suite 405 Murfreesboro, 37129, TN
- Gender: Male
- Address: Suite 300 201 Sivley Road Southwest Huntsville, 35801, AL
Questions & Answers
Does Dr. Gregory Allen Thomas accept patients with UnitedHealthcare?
Yes, Dr. Gregory Allen Thomas is listed in-network for UnitedHealthcare through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. Gregory Allen Thomas treat?
Dr. Gregory Allen Thomas provides treatment for Anal Fissure, Collapsed Lung, Crohn's Disease, Pancreatitis, Thoracic Outlet Syndrome (TOS), Ventricular Septal Defect (VSD). For the full list see this list.
Where can you meet with Dr. Gregory Allen Thomas?
Dr. Gregory Allen Thomas's office is located at 201 Sivley Road Southwest Suite 300 in Huntsville, AL 35801.
Has Dr. Gregory Allen Thomas affiliation with hospitals?
Dr. Gregory Allen Thomas is affiliated with DECATUR MORGAN HOSPITAL - DECATUR CAMPUS. For the full list of hospitals see this list.
Does Dr. Gregory Allen Thomas have affiliation with practices?
Dr. Gregory Allen Thomas is affiliated with Heart Center. For the full list of practices see this list.