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

Internal Medicine

Kiet V. Lieu, MD

Works at hospitals in Baldwin Park, CA · California

Summary

Dr. Kiet V. Lieu, MD is an internal medicine doctor at 1011 Balwin Park Blvd, Baldwin Park, CA 91706. Phone: (626) 851-1011. Accepts Medicare assignment. NPI 1750440400. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1011 Balwin Park Blvd, Baldwin Park, CA 91706 · Directions (1 more location)
  • Phone: (626) 851‑1011
  • Medicare: Accepts Medicare assignment
  • Hospital: Kaiser Foundation Hospital - Baldwin Park
  • Group practice: Southern California Permanente Medical Group
  • Medical school: New York Medical College · graduated 2001 (25 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Kiet V. Lieu, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kiet V. Lieu accept Medicare assignment?
Yes. Medicare's clinician data says Kiet V. Lieu accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Kiet V. Lieu's NPI number?
1750440400. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Kiet V. Lieu works

Medicare's Facility Affiliation Data lists Kiet V. Lieu at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Kiet V. Lieu is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kiet V. Lieu as a member of this group (CMS data updated October 2, 2026).

  • 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 →

Other clinicians in Southern California Permanente Medical Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolNew York Medical College
Graduation year2001 (25 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1750440400
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians