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Family Practice

Mallorie Mai Lien T. Nguyen, MD

Sees patients in Pasedena, CA · Pasadena, CA · San Diego, CA · California

Summary

Dr. Mallorie Mai Lien T. Nguyen, MD is a family doctor at 393 E Walnut 3rd Fl, Pasedena, CA 91188. May accept Medicare assignment. NPI 1912609256. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 393 E Walnut 3rd Fl, Pasedena, CA 91188 · Directions (2 more locations)
  • Medicare: May accept Medicare assignment
  • Medical school: 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 Mallorie Mai Lien T. Nguyen, 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 Mallorie Mai Lien T. Nguyen accept Medicare assignment?
Medicare's clinician data says Mallorie Mai Lien T. Nguyen may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Mallorie Mai Lien T. Nguyen's NPI number?
1912609256. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Mallorie Mai Lien T. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

  • 393 E Walnut 3rd FlPasedena, CA 91188
  • 393 E Walnut St Fl, 3 Phr Group Provider Enrollment UnitPasadena, CA 91188
  • 823 Gateway Ctr WaySan Diego, CA 92102

Specialties

Find other Family Practice doctors in California →

Other family doctors in Pasedena

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

All family doctors in Pasedena →

Clinician information

CredentialMD
Graduation year2023 (3 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1912609256
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians