Katherine Elizabeth Brennan, MD
Cardiovascular Disease Physician · Lafayette, LA
Katherine Elizabeth Brennan, MD is a cardiovascular disease physician with a practice address in Lafayette, Louisiana, and NPI 1497241020, issued on Jul 6, 2018. Check the license (Louisiana 343487, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Katherine Elizabeth Brennan
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 343487 LA
Self-reported in NPPES; status is on the state search - Practice location
- 441 Heymann Blvd, Lafayette, LA 70503
- Phone
- (337) 289-8429
- Enumerated
- Jul 6, 2018
- Record last updated
- Oct 2, 2024
- Medicare enrollment
- Enrolled (PECOS I20241021000108); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 441 Heymann Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laterica Antoine, FNPFamily Nurse Practitioner1609422724
- Mary Bryan, FNPFamily Nurse Practitioner1194207837
- Bose Cheeran, MDInterventional Cardiology Physician1649448598
- Kyle Duhon, APRN-FNPFamily Nurse Practitioner1013750967
- John Edavettal, M.D.Interventional Cardiology Physician1558333617
- Louise Frederick, APRN, CNSClinical Nurse Specialist1144223207
Verify Katherine Elizabeth Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 343487Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
53 Medicare Part D claims for 13 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
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: $110.54
6 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 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 4 group practices
- Cardiovascular Institute OF The South, LLCLafayette, LA
- Lafayette General Medical Center IncLafayette, LA
- Lafayette Health Ventures IncCrowley, LA
- St Martin Hospital IncBreaux Bridge, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cardiovascular Disease Physician providers in Louisiana
There are 327 cardiovascular disease physician records in Louisiana.
Other cardiovascular disease physician records in Louisiana
- Samy Abdelghani, MDCovington, LA1962778159
- Farah Abdulhai, MDNew Orleans, LA1093385486
- Niksad Abraham, MDGonzales, LA1033246970
- Christian Abrahim, MDShreveport, LA1316490824
- Godfrey Achilihu, MD FACCMonroe, LA1841274768
- Pratik AgrawalShreveport, LA1003267410
- Hamid AlaiNew Orleans, LA1881983211
- Usman Alam, M.D.,Opelousas, LA1174568208
- Gholam Ali, MDNew Orleans, LA1851493803
- Eckhard Alt, M.D., PH.D.New Orleans, LA1114196300
Common questions
What is Katherine Elizabeth Brennan, MD's NPI number?
Katherine Elizabeth Brennan, MD's National Provider Identifier (NPI) is 1497241020, issued on Jul 6, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Elizabeth Brennan, MD located?
The NPPES record lists a practice address at 441 Heymann Blvd, Lafayette, LA, 70503. Phone: (337) 289-8429. Providers update this record themselves, so call before visiting.
How can I verify Katherine Elizabeth Brennan, MD's license?
NPPES lists Louisiana license number 343487, 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 Katherine Elizabeth Brennan, MD prescribe under Medicare Part D?
In 2024, Katherine Elizabeth Brennan, MD had 53 Medicare Part D claims for 13 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.