NATHAN ALEGER MD
NPI 1417652546
Internal Medicine in Marrero, LA
About Nathan Aleger Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHAN ALEGER MD (NPI 1417652546) is an individual internal medicine provider in Marrero, Louisiana, licensed in Louisiana (350362) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS, is affiliated with West Jefferson Medical Center, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Nathan Aleger Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Nathan Aleger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Marrero, LA 70072
- Reassigned Medicare billing, Louisiana enrollment
- 291 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
West Jefferson Medical Center
Acute Care Hospitals · Marrero, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 70072 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MARRERO, LA 70072
MARRERO, LA 70072
MARRERO, LA 70072
MARRERO, LA 70072
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Nathan Aleger's NPI number?
The NPI number for Nathan Aleger is 1417652546. It was assigned to this individual provider in the NPPES registry on March 30, 2023.
Where is Nathan Aleger located?
Nathan Aleger practices at 1101 Medical Center Blvd, Marrero, LA 70072. The listed phone number is (504) 349-1656.
What is Nathan Aleger's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nathan Aleger enrolled in Medicare?
Yes. Nathan Aleger is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Nathan Aleger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Aleger reassigns Medicare benefits to New Orleans Physician Services Inc (Marrero, LA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nathan Aleger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathan Aleger accept?
Health plans from HMO Louisiana list Nathan Aleger as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Nathan Aleger affiliated with any hospitals?
According to CMS data, Nathan Aleger is affiliated with West Jefferson Medical Center.
When was this NPI record last updated?
The NPPES record for Nathan Aleger was last updated on June 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Nathan Aleger, MD · NPI 1417652546
Internal Medicine physician in Marrero, Louisiana. Individual provider, active in the CMS NPPES registry since March 30, 2023.
## Identity
- **NPI:** 1417652546 (Entity type: Individual)
- **Enumerated:** March 30, 2023
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 350362 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 1101 MEDICAL CENTER BLVD, Marrero, LA 70072-3147
- **Phone:** (504) 349-1656
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** New Orleans Physician Services Inc (NPI 1396169678, Marrero, LA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** June 5, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1417652546) · Data from the CMS NPPES public registry.