Karl David Matherne, RPH
Pharmacist · Marrero, LA
Karl David Matherne, RPH is a pharmacist with a practice address in Marrero, Louisiana, and NPI 1053627539, issued on Aug 23, 2010. Check the license (Louisiana 14133, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karl David Matherne
- Credential
- RPH
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 14133 LA
Self-reported in NPPES; status is on the state search - Practice location
- 4600 Westbank Expy, Marrero, LA 70072
- Phone
- (504) 340-6337
- Enumerated
- Aug 23, 2010
- Record last updated
- Aug 23, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (504) 340-1636
- Entity
- Type 1 · individual
Also registered at 4600 Westbank Expy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Veronica Gurley, RPHPharmacist1629964481
- Mohammad Jabr, PHARMDPharmacist1871273631
- Courtney LeblancPharmacist1215347794
- Dzuyen NguyenPharmacist1609182971
Verify Karl David Matherne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
Search for license 14133Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs
65 Medicare Part D claims for 55 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Arexvy28 claims
- Shingrix25 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.
68 pharmacist records list a practice address in Marrero
They are 68 of the 1,117 NPPES records with a practice address in Marrero, and 4,623 pharmacist records in Louisiana.
All 68 in Marrero → All 4,623 in Louisiana → Every provider in Marrero →
Other pharmacist records in Louisiana
- Martina Abd El Sayed, RPHWestwego, LA1174108708
- Fadi AbdallahBaton Rouge, LA1528886546
- Mahmoud Abdallah-HijazLuling, LA1376207522
- Hisham AbdelazizMandeville, LA1124700125
- Yasser AbdelazizPineville, LA1801307467
- Rana AbdelfattahNew Orleans, LA1821465436
- Rola Abdelmuhsen, PHARMDBaton Rouge, LA1184930224
- Ahmad AbdelsalamPineville, LA1114699766
- Ibrahim Abdelwahab, PHARM.DGretna, LA1013785427
- Kaleb AbebeNatchitoches, LA1386095180
Common questions
What is Karl David Matherne, RPH's NPI number?
Karl David Matherne, RPH's National Provider Identifier (NPI) is 1053627539, issued on Aug 23, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Karl David Matherne, RPH located?
The NPPES record lists a practice address at 4600 Westbank Expy, Marrero, LA, 70072. Phone: (504) 340-6337. Providers update this record themselves, so call before visiting.
How can I verify Karl David Matherne, RPH's license?
NPPES lists Louisiana license number 14133, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.
How much does Karl David Matherne, RPH prescribe under Medicare Part D?
In 2024, Karl David Matherne, RPH had 65 Medicare Part D claims for 55 beneficiaries; the average among pharmacist prescribers was 119. 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.