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Physician Assistant

Alexandra Masullo, PA

Sees patients in Brookline, MA · Massachusetts

Summary

Alexandra Masullo, PA (Physician Assistant) is enrolled with Medicare at 1 practice location in Brookline, MA. NPI 1528776465. Source: CMS National Downloadable File, updated 2026-10-02.

Call(888) 980‑0505 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Alexandra Masullo, 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

1Practice location
Physician AssistantPrimary specialty
May acceptAccepts Medicare assignment
4Years since medical school (graduated 2022)
FemaleGender (as listed)
Mass General Brigham Urgent Care LLCGroup practice

Quick answers

Where does Alexandra Masullo see patients?
Medicare's clinician data lists 1 practice location in Brookline, MA. Call before your visit to confirm the address.
What is Alexandra Masullo's specialty?
Medicare lists Physician Assistant as the primary specialty.
Does Alexandra Masullo accept Medicare assignment?
Medicare's clinician data says Alexandra Masullo may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is the phone number for Alexandra Masullo?
(888) 980-0505, as listed in official Medicare / NPI Registry data.
What is Alexandra Masullo's NPI number?
1528776465. 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 Alexandra Masullo is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Mass General Brigham Urgent Care LLC102 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Massachusetts →

Other physician assistants in Brookline

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

All physician assistants in Brookline →

Clinician information

CredentialPA
Graduation year2022
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1528776465
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