Gregory Allen Thomas, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Huntsville, AL
Gregory Allen Thomas, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Huntsville, Alabama, and NPI 1083624357, issued on Aug 9, 2006. Check the license (Alabama 25181, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Gregory Allen Thomas
- Credential
- M.D.
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- 25181 AL
Self-reported in NPPES; status is on the state search - Practice location
- 201 Sivley RD SW Ste 300, Huntsville, AL 35801
- Phone
- (256) 536-5594
- Enumerated
- Aug 9, 2006
- Record last updated
- Mar 16, 2022
- Fax
- (256) 533-3379
- Medicaid IDs
- 09923075 AL
051553265 AL - Medicare enrollment
- Enrolled (PECOS I20050110000342); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 75 in Alabama → Look up another NPI →
Also registered at 201 Sivley RD SW Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tara Bustos, CRNPAcute Care Nurse Practitioner1235948480
- Juan Gallegos, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1073809778
- Kathryne Peplinski, CRNPNurse Practitioner1437700317
- Andres Samayoa, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1699038497
- Paul Speicher, M.D.Surgery Physician1811213887
- Frans Vanwagenberg, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1982999728
Verify Gregory Allen Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license 25181Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.5 times the Medicare Part D claims of the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
659 Medicare Part D claims for 147 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. 93 claims were for opioids.
Most prescribed
- Metoprolol Tartrate68 claims
- Furosemide61 claims
- Potassium Chloride61 claims
- Hydrocodone-Acetaminophen53 claims
- Amiodarone Hcl33 claims
- Methocarbamol29 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $3,235.94
15 payments; by number, the most common kind was food and beverage; the largest payer was Baxter Healthcare. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- HH Heart Center, LLCHuntsville, AL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Allen Thomas among 75 thoracic surgery (cardiothoracic vascular surgery) physician records in Alabama
Gregory Allen Thomas, M.D. is one of 75 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Alabama. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 20% of them.
- NPI issued2006 · 20% of these records are older, 47% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated1988 · median 1996 among the 59 with a school on file
- Record last updated2022 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Alabama
There are 75 thoracic surgery (cardiothoracic vascular surgery) physician records in Alabama.
All 75 in Alabama → Every provider in Huntsville → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Richard Clay, MDHuntsville, AL 358011619960549
- Evan Cohen, M.D.Huntsville, AL 358011235122177
- Juan Gallegos, MDHuntsville, AL 358011073809778
- Shaf Holden, MDHuntsville, AL 358011518161397
- Andres Samayoa, M.D.Huntsville, AL 358011699038497
- Frans Vanwagenberg, M.D.Huntsville, AL 358011982999728
- Thomas Washburn, M.D.Huntsville, AL 358011639162571
- Peter Yu, MDHuntsville, AL 358011134393507
Common questions
What is Gregory Allen Thomas, M.D.'s NPI number?
Gregory Allen Thomas, M.D.'s National Provider Identifier (NPI) is 1083624357, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Allen Thomas, M.D. located?
The NPPES record lists a practice address at 201 Sivley RD SW Ste 300, Huntsville, AL, 35801. Phone: (256) 536-5594. Providers update this record themselves, so call before visiting.
How can I verify Gregory Allen Thomas, M.D.'s license?
NPPES lists Alabama license number 25181, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Allen Thomas, M.D. prescribe under Medicare Part D?
In 2024, Gregory Allen Thomas, M.D. had 659 Medicare Part D claims for 147 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.