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Internal Medicine

Brandon Lui, DO

Works at hospitals in Downey, CA · California

Summary

Brandon Lui, DO (Internal Medicine) is listed by Medicare at 1 hospital in Downey, CA. NPI 1003443235. 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 Brandon Lui, 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
6Years since medical school (graduated 2020)
Arizona College Of Osteopathic Medicine Mid Western UniversityMedical school
MaleGender (as listed)
Southern California Permanente Medical GroupGroup practice

Quick answers

Which hospitals does Brandon Lui work at?
Medicare's official clinician data lists Brandon Lui at 1 hospital: Kaiser Foundation Hospital - Downey. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Brandon Lui see patients?
Medicare's clinician data lists 1 practice location in Downey, CA. Call before your visit to confirm the address.
What is Brandon Lui's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Brandon Lui accept Medicare assignment?
Yes. Medicare's clinician data says Brandon Lui 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.
What is the phone number for Brandon Lui?
(800) 923-4040, as listed in official Medicare / NPI Registry data.
What is Brandon Lui's NPI number?
1003443235. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Brandon Lui works

Medicare's Facility Affiliation Data lists Brandon Lui 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 Brandon Lui is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Downey

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

All internal medicine doctors in Downey →

Clinician information

CredentialDO
Medical schoolArizona College Of Osteopathic Medicine Mid Western University
Graduation year2020
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003443235
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