Nathan Aleger, MD
Internal Medicine Physician · Marrero, LA
Nathan Aleger, MD is an internal medicine physician with a practice address in Marrero, Louisiana, and NPI 1417652546, issued on Mar 30, 2023. Check the license (Louisiana 350362, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Nathan Aleger
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 350362 LA
Self-reported in NPPES; status is on the state search - Practice location
- 1101 Medical Center Blvd, Marrero, LA 70072
- Phone
- (504) 349-1656
- Enumerated
- Mar 30, 2023
- Record last updated
- Jun 5, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,749 in Louisiana → Look up another NPI →
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Verify Nathan Aleger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 350362Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
208 Medicare Part D claims for 26 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Amlodipine Besylate26 claims
- Atorvastatin Calcium21 claims
- Pantoprazole Sodium21 claims
- Tamsulosin Hcl18 claims
- Losartan Potassium16 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.
Nathan Aleger among 1,749 internal medicine physician records in Louisiana
Nathan Aleger, MD 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 2023, is newer than 96% of them.
- NPI issued2023 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2026 · 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).
46 internal medicine physician records list a practice address in Marrero
They are 46 of the 1,117 NPPES records with a practice address in Marrero, and 1,749 internal medicine physician records in Louisiana.
All 1,749 in Louisiana → Every provider in Marrero → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Scott Acosta, MDMarrero, LA 700721023018199
- Lauren Barial, M.D.Marrero, LA 700721699758821
- Walter Bortz, M.D.Marrero, LA 700721225012016
- Alan Bowers, MDMarrero, LA 700721306832886
- Craig Ehrensing, MDMarrero, LA 700721538127618
- Constance Gistand, MDMarrero, LA 700721225014327
- Shaunda Jones, M.D.Marrero, LA 700721891734190
- Yvens Laborde, MDMarrero, LA 700721891744264
Common questions
What is Nathan Aleger, MD's NPI number?
Nathan Aleger, MD's National Provider Identifier (NPI) is 1417652546, issued on Mar 30, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Aleger, MD located?
The NPPES record lists a practice address at 1101 Medical Center Blvd, Marrero, LA, 70072. Phone: (504) 349-1656. Providers update this record themselves, so call before visiting.
How can I verify Nathan Aleger, MD's license?
NPPES lists Louisiana license number 350362, 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 Nathan Aleger, MD prescribe under Medicare Part D?
In 2024, Nathan Aleger, MD had 208 Medicare Part D claims for 26 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.