Alexandra Joseph Chastant, MD
Allergy & Immunology Physician · Lafayette, LA
Alexandra Joseph Chastant, MD is an allergy & immunology physician with a practice address in Lafayette, Louisiana, and NPI 1134623903, issued on Mar 19, 2018. Check the license (Louisiana 338387, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Alexandra Joseph Chastant
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 338387 LA
Self-reported in NPPES; status is on the state search - Practice location
- 320 Settlers Trace Blvd, Lafayette, LA 70508
- Phone
- (337) 981-9495
- Enumerated
- Mar 19, 2018
- Record last updated
- Jan 2, 2024
- Fax
- (337) 981-7451
- Medicare enrollment
- Enrolled (PECOS I20241018003771); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 2018
- Entity
- Type 1 · individual
Also registered at 320 Settlers Trace Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Collins, M.D.Allergy & Immunology Physician1932424660
- Bernard Fruge, MDAllergy & Immunology Physician1225034812
- Bina Joseph, MDAllergy & Immunology Physician1346232212
Verify Alexandra Joseph 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 338387Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
407 Medicare Part D claims for 81 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Azelastine Hcl97 claims
- Fluticasone Propionate56 claims
- Albuterol Sulfate Hfa50 claims
- Ipratropium Bromide36 claims
- Montelukast Sodium25 claims
- Epinephrine15 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: $405.75
10 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 2,496 providers of this specialty with any payment received $8,321.81 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
- Allergy Asthma And Immunology Center OF Southwest LouisianaLafayette, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allergy & Immunology Physician providers in Louisiana
There are 58 allergy & immunology physician records in Louisiana.
Other allergy & immunology physician records in Louisiana
- Gonzalo Alvarez Del Real, MDShreveport, LA1801853106
- Jada Armstrong, MDBaton Rouge, LA1265454045
- Evan Atkinson, M.D.New Orleans, LA1255655262
- Jibran Atwi, MDLafayette, LA1154322923
- Wilton Bergeron, M. D.Lafayette, LA1457680332
- Caroline Caperton, M.D., M.S.P.H.Shreveport, LA1861791592
- John Carlson, MD, PHDNew Orleans, LA1700058310
- Andrew Collins, M.D.Lafayette, LA1932424660
- William Davis, MDNew Orleans, LA1033212725
- Stephen Derbes, MDNew Orleans, LA1689763302
Common questions
What is Alexandra Joseph Chastant, MD's NPI number?
Alexandra Joseph Chastant, MD's National Provider Identifier (NPI) is 1134623903, issued on Mar 19, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Alexandra Joseph Chastant, MD located?
The NPPES record lists a practice address at 320 Settlers Trace Blvd, Lafayette, LA, 70508. Phone: (337) 981-9495. Providers update this record themselves, so call before visiting.
How can I verify Alexandra Joseph Chastant, MD's license?
NPPES lists Louisiana license number 338387, 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 Alexandra Joseph Chastant, MD prescribe under Medicare Part D?
In 2024, Alexandra Joseph Chastant, MD had 407 Medicare Part D claims for 81 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.