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NATHAN ALEGER MD
NPI 1417652546
Internal Medicine in Marrero, LA

Active since March 30, 2023PECOS Enrolled
1101 MEDICAL CENTER BLVD, MARRERO, LA 70072(504) 349-1656 Get Directions Write a Review

NPPES record last updated: June 5, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jun 5, 2026, Mar 30, 2023 (2 updates tracked since 2023).

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 and is a graduate of Other (2023).

NPPES Registry Identity

NPI1417652546
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameNATHAN ALEGERCredential: MD
Location Address1101 MEDICAL CENTER BLVDMarrero, LA 70072-3147
Mailing Address1100 Poydras St Ste 2500New Orleans, LA 70163-2500 · (504) 527-9953 · Fax (504) 527-9950
Phone(504) 349-1656
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateMarch 30, 2023
Last NPPES UpdateJune 5, 20262 updates tracked since enumeration
NPPES CertifiedJune 5, 2026
✔ NPI 1417652546 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in LA · 350362
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1101 MEDICAL CENTER BLVD, Marrero, LA 70072
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nathan Aleger Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1850754904
PECOS Enrollment IDI20260707004185
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician 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.

New Patient
$128.88 typical visit price
range $55.50 – $170.30
Typical copayment $32.22 (range $13.87 – $42.57)
Most-billed visit code 99204
Established Patient
$98.35 typical visit price
range $17.42 – $138.03
Typical copayment $24.58 (range $4.35 – $34.50)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

LAURA KATHLEEN BROWN MSN-APRN
Nurse Practitioner (Acute Care)
1101 MEDICAL CENTER BLVD
MARRERO, LA 70072
Jefferson Parish (504) 349-2351
MS. ROSALIE MARIE LARSON MSN, RN
Registered Nurse (Critical Care Medicine)
1101 MEDICAL CENTER BLVD
MARRERO, LA 70072
Jefferson Parish (504) 349-2400
DR. KENNETH C. MALMSTROM MD
Hospitalist
1101 MEDICAL CENTER BLVD
MARRERO, LA 70072
Jefferson Parish (504) 349-1656
DR. JAMES W CALLAGHAN MD
Emergency Medicine
1101 MEDICAL CENTER BLVD, EMERGENCY DEPARTMENT
MARRERO, LA 70072
Jefferson Parish (504) 349-1533
HERNAN ADAMES MD
Internal Medicine
1101 MEDICAL CENTER BLVD
MARRERO, LA 70072
Jefferson Parish (504) 349-1656
JAHNAVI RUDRAKSHALA MD
Internal Medicine
1101 MEDICAL CENTER BLVD
MARRERO, LA 70072
Jefferson Parish (504) 349-1656
DR. JAMIESON GLASSER M.D.
Student in an Organized Health Care Education/Training Program
1101 MEDICAL CENTER BLVD
MARRERO, LA 70072
Jefferson Parish (504) 347-5511
ELIZABETH COCHRANE RITZ M.D.
Emergency Medicine
1101 MEDICAL CENTER BLVD
MARRERO, LA 70072
Jefferson Parish (504) 349-1533

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 enrollment system.

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 3 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.