Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Carlos Macias, MD

Works at hospitals in Sylmar, CA · Los Angeles, CA · Santa Monica, CA · California

Summary

Carlos Macias, MD (Internal Medicine) is listed by Medicare at 4 hospitals in Sylmar, CA, Los Angeles, CA and Santa Monica, CA. NPI 1104965193. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Carlos Macias, 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
YesAccepts Medicare assignment
YesOffers telehealth
22Years since medical school (graduated 2004)
MaleGender (as listed)
The Regents of the University of CaliforniaGroup practice

Quick answers

Which hospitals does Carlos Macias work at?
Medicare's official clinician data lists Carlos Macias at 4 hospitals: Lac/Olive View-Ucla Medical Center, Ronald Reagan UCLA Medical Center, Saint John's Health Center and Santa Monica - UCLA Medical Center & Orthopaedic Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Carlos Macias see patients?
Medicare's clinician data lists 10 practice locations, including Los Angeles, CA and Santa Monica, CA. Call before your visit to confirm the address.
What is Carlos Macias's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Cardiovascular Disease (Cardiology).
Does Carlos Macias accept Medicare assignment?
Yes. Medicare's clinician data says Carlos Macias accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Carlos Macias offer telehealth?
Medicare's clinician data says Carlos Macias offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Carlos Macias?
(310) 825-7922, as listed in official Medicare / NPI Registry data.
What is Carlos Macias's NPI number?
1104965193. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Carlos Macias works

Medicare's Facility Affiliation Data lists Carlos Macias at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Carlos Macias is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.

Group practices

Medicare enrollment lists Carlos Macias as a member of this group (CMS data updated 2026-10-02).

  • The Regents of the University of California1,462 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Los Angeles

Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.

All internal medicine doctors in Los Angeles →

Clinician information

CredentialMD
Graduation year2004
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1104965193
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians