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Internal Medicine

Millie M. Leung, MD

Works at hospitals in Baldwin Park, CA · California

Summary

Millie M. Leung, MD (Internal Medicine) is listed by Medicare at 1 hospital in Baldwin Park, CA. NPI 1215085162. 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 Millie M. Leung, 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
31Years since medical school (graduated 1995)
University Of Southern California Keck School Of MedicineMedical school
FemaleGender (as listed)
Southern California Permanente Medical GroupGroup practice

Quick answers

Which hospitals does Millie M. Leung work at?
Medicare's official clinician data lists Millie M. Leung at 1 hospital: Kaiser Foundation Hospital - Baldwin Park. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Millie M. Leung see patients?
Medicare's clinician data lists 2 practice locations, including Baldwin Park, CA and San Dimas, CA. Call before your visit to confirm the address.
What is Millie M. Leung's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Hematology/Oncology.
Does Millie M. Leung accept Medicare assignment?
Yes. Medicare's clinician data says Millie M. Leung 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 Millie M. Leung?
(626) 851-1011, as listed in official Medicare / NPI Registry data.
What is Millie M. Leung's NPI number?
1215085162. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Millie M. Leung works

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

Group practices

Medicare enrollment lists Millie M. Leung 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 Baldwin Park

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

All internal medicine doctors in Baldwin Park →

Clinician information

CredentialMD
Medical schoolUniversity Of Southern California Keck School Of Medicine
Graduation year1995
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1215085162
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