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Internal Medicine

Nicholas E. Maalouf, DO

Sees patients in Las Vegas, NV · Fairfield, CA · Nevada, California

Summary

Nicholas E. Maalouf, DO (Internal Medicine) is enrolled with Medicare at 3 practice locations in Las Vegas, NV and Fairfield, CA. NPI 1538861281. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Nicholas E. Maalouf, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
May acceptAccepts Medicare assignment
3Years since medical school (graduated 2023)
West Virginia School Of Osteopathic MedicineMedical school
MaleGender (as listed)

Quick answers

Where does Nicholas E. Maalouf see patients?
Medicare's clinician data lists 3 practice locations, including Las Vegas, NV and Fairfield, CA. Call before your visit to confirm the address.
What is Nicholas E. Maalouf's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Nicholas E. Maalouf accept Medicare assignment?
Medicare's clinician data says Nicholas E. Maalouf may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is Nicholas E. Maalouf's NPI number?
1538861281. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Nicholas E. Maalouf is enrolled with Medicare (CMS data updated 2026-10-02).

  • 1701 W Charleston Blvd, Suite 230Las Vegas, NV 89102
  • 4500 Business Ctr DrFairfield, CA 94534
  • 7401 W Washington AveLas Vegas, NV 89128

Specialties

Find other Internal Medicine doctors in Nevada →

Other internal medicine doctors in Las Vegas

Clinicians with the same Medicare primary specialty in Las Vegas, NV — not a recommendation.

All internal medicine doctors in Las Vegas →

Clinician information

CredentialDO
Medical schoolWest Virginia School Of Osteopathic Medicine
Graduation year2023
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1538861281
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians