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Clinical Social Worker

Cassandra Xanthos

Sees patients in Cambridge, MA · Massachusetts

Summary

Cassandra Xanthos (Clinical Social Worker) is enrolled with Medicare at 1 practice location in Cambridge, MA. NPI 1982117743. 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 Cassandra Xanthos, 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

Clinical Social WorkerPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
15Years since medical school (graduated 2011)
FemaleGender (as listed)
President and Fellows of Harvard CollegeGroup practice

Quick answers

Where does Cassandra Xanthos see patients?
Medicare's clinician data lists 1 practice location in Cambridge, MA. Call before your visit to confirm the address.
What is Cassandra Xanthos's specialty?
Medicare lists Clinical Social Worker as the primary specialty.
Does Cassandra Xanthos accept Medicare assignment?
Yes. Medicare's clinician data says Cassandra Xanthos 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.
Does Cassandra Xanthos offer telehealth?
Medicare's clinician data says Cassandra Xanthos offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Cassandra Xanthos?
(617) 496-8700, as listed in official Medicare / NPI Registry data.
What is Cassandra Xanthos's NPI number?
1982117743. 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 Cassandra Xanthos is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • President and Fellows of Harvard College97 clinicians in the group

Specialties

Find other clinicians: Clinical Social Worker, Massachusetts →

Other clinical social workers in Cambridge

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

All clinical social workers in Cambridge →

Clinician information

Graduation year2011
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1982117743
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