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Pathology

Mai Gu, MD

Sees patients in Yorba Linda, CA · California

Summary

Mai Gu, MD (Pathology) is enrolled with Medicare at 1 practice location in Yorba Linda, CA. NPI 1821048257. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mai Gu, 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

PathologyPrimary specialty
YesAccepts Medicare assignment
38Years since medical school (graduated 1988)
FemaleGender (as listed)

Quick answers

Where does Mai Gu see patients?
Medicare's clinician data lists 1 practice location in Yorba Linda, CA. Call before your visit to confirm the address.
What is Mai Gu's specialty?
Medicare lists Pathology as the primary specialty.
Does Mai Gu accept Medicare assignment?
Yes. Medicare's clinician data says Mai Gu 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 Mai Gu?
(951) 808-8863, as listed in official Medicare / NPI Registry data.
What is Mai Gu's NPI number?
1821048257. 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 Mai Gu is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Pathology doctors in California →

Other pathologists in California

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

All pathologists in California →

Clinician information

CredentialMD
Graduation year1988
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1821048257
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 2026-10-02, retrieved 2026-10-29
  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