Thomas Gregory Chaisson, MD
General Practice Physician · Thibodaux, LA
Thomas Gregory Chaisson, MD is a general practice physician with a practice address in Thibodaux, Louisiana, and NPI 1902895279, issued on Oct 19, 2005. Check the license (Louisiana 09201R, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Thomas Gregory Chaisson
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License numbers
- 09201R LA
MD.09201R LA
Self-reported in NPPES; status is on the state search - Practice location
- 142 Rue Marguerite, Thibodaux, LA 70301
- Phone
- (985) 446-2131
- Enumerated
- Oct 19, 2005
- Record last updated
- Apr 3, 2025
- Fax
- (985) 447-3383
- Medicaid ID
- 1957879 LA
- Medicare enrollment
- Enrolled (PECOS I20041230000152); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1991
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 145 in Louisiana → Look up another NPI →
Also registered at 142 Rue Marguerite
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alyse Blanchard, PH.D.Clinical Psychologist1689124687
- Chester Boudreaux, MDGeneral Practice Physician1073502472
- Hayley ChatagnierFamily Nurse Practitioner1609589597
- Mary Esteve, LSSPSchool Psychologist1598158990
- Catherine Fangue, N.P.Family Nurse Practitioner1144461088
- James Soignet, MDGeneral Practice Physician1326037730
Verify Thomas Gregory Chaisson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 09201RCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.6 times the Medicare Part D claims of the average general practice physician in 2024
14,014 Medicare Part D claims for 940 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 104 claims were for opioids.
Most prescribed
- Levothyroxine Sodium1,040 claims
- Alprazolam446 claims
- Pantoprazole Sodium421 claims
- Amlodipine Besylate349 claims
- Gabapentin340 claims
- Montelukast Sodium270 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: $593.14
33 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,259 providers of this specialty with any payment received $1,273.40 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
- Thibodaux Internal Medicine Associates,inc.Thibodaux, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Gregory Chaisson among 145 general practice physician records in Louisiana
Thomas Gregory Chaisson, MD is one of 145 general practice physician records with a practice address in Louisiana. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 37% of these records are
- Graduated1991 · median 2005 among the 53 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in Louisiana
There are 145 general practice physician records in Louisiana.
All 145 in Louisiana → Every provider in Thibodaux → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Chester Boudreaux, MDThibodaux, LA 703011073502472
- James Soignet, MDThibodaux, LA 703011326037730
- Eddie Smith, MDCut Off, LA 703451700908241
- Lisa Alevizon, MDHoume, LA 703601295810570
- Arthur Ostheimer, M.D.Houma, LA 703601104261395
- Claudio Guillermo, M.D.Raceland, LA 703941861681504
- Derris Ray, M.D.Amite, LA 704221780679746
- Charles Rogers, M.D.Bogalusa, LA 704271902938657
Common questions
What is Thomas Gregory Chaisson, MD's NPI number?
Thomas Gregory Chaisson, MD's National Provider Identifier (NPI) is 1902895279, issued on Oct 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Gregory Chaisson, MD located?
The NPPES record lists a practice address at 142 Rue Marguerite, Thibodaux, LA, 70301. Phone: (985) 446-2131. Providers update this record themselves, so call before visiting.
How can I verify Thomas Gregory Chaisson, MD's license?
NPPES lists Louisiana license number 09201R, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas Gregory Chaisson, MD prescribe under Medicare Part D?
In 2024, Thomas Gregory Chaisson, MD had 14,014 Medicare Part D claims for 940 beneficiaries; the average among general practice physician prescribers was 3,030. 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.