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Internal Medicine

Mason Marcus, MD

Sees patients in Albuquerque, NM · New Mexico

Summary

Mason Marcus, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Albuquerque, NM. NPI 1003300617. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mason Marcus, 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
8Years since medical school (graduated 2018)
University Of Illinois College Of Med (chi/peor/rock/chm-Urb)Medical school
MaleGender (as listed)

Quick answers

Where does Mason Marcus see patients?
Medicare's clinician data lists 1 practice location in Albuquerque, NM. Call before your visit to confirm the address.
What is Mason Marcus's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Cardiovascular Disease (Cardiology).
Does Mason Marcus accept Medicare assignment?
Medicare's clinician data says Mason Marcus may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is Mason Marcus's NPI number?
1003300617. 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 Mason Marcus is enrolled with Medicare (CMS data updated 2026-10-02).

  • 4101 Indian School Rd NE, Suite 110Albuquerque, NM 87110

Specialties

Find other Internal Medicine doctors in New Mexico →

Other internal medicine doctors in Albuquerque

Clinicians with the same Medicare primary specialty in Albuquerque, NM — not a recommendation.

All internal medicine doctors in Albuquerque →

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year2018
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1003300617
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