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

Internal Medicine

Louisa Xie, MD

Works at hospitals in San Francisco, CA · California

Summary

Dr. Louisa Xie, MD is an internal medicine doctor at 375 Laguna Honda Blvd, San Francisco, CA 94116. May accept Medicare assignment. NPI 1548962871. 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: 375 Laguna Honda Blvd, San Francisco, CA 94116 · Directions (3 more locations)
  • Medicare: May accept Medicare assignment
  • Hospital: Zuckerberg San Francisco General Hospital & Trauma Center
  • Medical school: University Of Texas Medical School At San Antonio · graduated 2023 (3 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Louisa Xie, 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 Louisa Xie accept Medicare assignment?
Medicare's clinician data says Louisa Xie may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Louisa Xie's NPI number?
1548962871. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Louisa Xie works

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

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Francisco

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

All internal medicine doctors in San Francisco →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At San Antonio
Graduation year2023 (3 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1548962871
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