Bradley John Chastant, M.D.
Internal Medicine Physician · Lafayette, LA
Bradley John Chastant, M.D. is an internal medicine physician with a practice address in Lafayette, Louisiana, and NPI 1003074907, issued on May 28, 2008. Check the license (Louisiana 204845, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Bradley John Chastant
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 204845 LA
Self-reported in NPPES; status is on the state search - Practice location
- 461 Heymann Blvd, Lafayette, LA 70503
- Phone
- (337) 289-8717
- Enumerated
- May 28, 2008
- Record last updated
- May 7, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (337) 289-8718
- Medicare enrollment
- Enrolled (PECOS I20111003000263); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,749 in Louisiana → Look up another NPI →
Also registered at 461 Heymann Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Bradley John Chastant in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 204845Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.2 times the Medicare Part D claims of the average internal medicine physician in 2024
13,238 Medicare Part D claims for 897 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 308 claims were for opioids.
Most prescribed
- Levothyroxine Sodium575 claims
- Amlodipine Besylate517 claims
- Atorvastatin Calcium454 claims
- Rosuvastatin Calcium412 claims
- Alprazolam397 claims
- Gabapentin337 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: $1,163.60
64 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Lafayette Health Ventures IncLafayette, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bradley John Chastant among 1,749 internal medicine physician records in Louisiana
Bradley John Chastant, M.D. is one of 1,749 internal medicine physician records with a practice address in Louisiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 47% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2011 · median 2008 among the 1,216 with a school on file
- Record last updated2013 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
107 internal medicine physician records list a practice address in Lafayette
They are 107 of the 5,181 NPPES records with a practice address in Lafayette, and 1,749 internal medicine physician records in Louisiana.
All 1,749 in Louisiana → Every provider in Lafayette → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Michael Alexander, MDLafayette, LA 705031649352261
- Brian Barnes, M.D.Lafayette, LA 705031700039450
- Brad Broussard, MDLafayette, LA 705031275551509
- Julio Castro-Quero, MDLafayette, LA 705031972695724
- Kelly Cobb, M.D.Lafayette, LA 705031598732349
- Eric Fontenot, MDLafayette, LA 705031437228657
- Shankaraiah Kothapalli, M.D.,Lafayette, LA 705031477554996
- Amanda Logue, M.D.Lafayette, LA 705031821211269
Common questions
What is Bradley John Chastant, M.D.'s NPI number?
Bradley John Chastant, M.D.'s National Provider Identifier (NPI) is 1003074907, issued on May 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Bradley John Chastant, M.D. located?
The NPPES record lists a practice address at 461 Heymann Blvd, Lafayette, LA, 70503. Phone: (337) 289-8717. Providers update this record themselves, so call before visiting.
How can I verify Bradley John Chastant, M.D.'s license?
NPPES lists Louisiana license number 204845, 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 Bradley John Chastant, M.D. prescribe under Medicare Part D?
In 2024, Bradley John Chastant, M.D. had 13,238 Medicare Part D claims for 897 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.