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

Pathology

Guangwu Xu, MD

Works at hospitals in Melrose, MA · Massachusetts

Summary

Guangwu Xu, MD (Pathology) is listed by Medicare at 1 hospital in Melrose, MA. NPI 1538691894. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Guangwu Xu, 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
30Years since medical school (graduated 1996)
MaleGender (as listed)
Pratt Pathology Associates IncGroup practice

Quick answers

Which hospitals does Guangwu Xu work at?
Medicare's official clinician data lists Guangwu Xu at 1 hospital: Melrosewakefield Healthcare. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Guangwu Xu see patients?
Medicare's clinician data lists 1 practice location in Boston, MA. Call before your visit to confirm the address.
What is Guangwu Xu's specialty?
Medicare lists Pathology as the primary specialty.
Does Guangwu Xu accept Medicare assignment?
Yes. Medicare's clinician data says Guangwu Xu 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 Guangwu Xu?
(617) 636-5000, as listed in official Medicare / NPI Registry data.
What is Guangwu Xu's NPI number?
1538691894. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Guangwu Xu works

Medicare's Facility Affiliation Data lists Guangwu Xu at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Guangwu Xu is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Guangwu Xu as a member of this group (CMS data updated 2026-10-02).

  • Pratt Pathology Associates Inc25 clinicians in the group

Specialties

Find other Pathology doctors in Massachusetts →

Other pathologists in Boston

Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.

All pathologists in Boston →

Clinician information

CredentialMD
Graduation year1996
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538691894
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians