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

Colorectal Surgery (Proctology)

Wendy Y. Liu, MD

Works at hospitals in Woodland Hills, CA · California

Summary

Dr. Wendy Y. Liu, MD is a colorectal surgeon at 5601 De Soto Ave, Woodland Hills, CA 91367. Phone: (818) 719-2000. Accepts Medicare assignment. NPI 1992952741. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Colorectal surgeon (Medicare lists Colorectal Surgery (Proctology))
  • Address: 5601 De Soto Ave, Woodland Hills, CA 91367 · Directions
  • Phone: (818) 719‑2000
  • Medicare: Accepts Medicare assignment
  • Hospital: Kaiser Foundation Hospital - Woodland Hills
  • Group practice: Southern California Permanente Medical Group
  • Medical school: University Of California, Geffen School Of Medicine · graduated 2008 (18 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Wendy Y. Liu, 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 Wendy Y. Liu accept Medicare assignment?
Yes. Medicare's clinician data says Wendy Y. Liu 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 Wendy Y. Liu's NPI number?
1992952741. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Wendy Y. Liu works

Medicare's Facility Affiliation Data lists Wendy Y. Liu 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 Wendy Y. Liu is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Wendy Y. Liu 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 Colorectal Surgery (Proctology) doctors in California →

Other colorectal surgeons in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All colorectal surgeons in California →

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 schoolUniversity Of California, Geffen School Of Medicine
Graduation year2008 (18 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1992952741
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