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Internal Medicine

Thomas Xu, MD

Works at hospitals in Stamford, CT · Connecticut

Summary

Thomas Xu, MD (Internal Medicine) is listed by Medicare at 1 hospital in Stamford, CT. NPI 1972881050. 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 Thomas 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
15Years since medical school (graduated 2011)
New York Medical CollegeMedical school
MaleGender (as listed)
Stamford Health Medical Group IncGroup practice

Quick answers

Which hospitals does Thomas Xu work at?
Medicare's official clinician data lists Thomas Xu at 1 hospital: Stamford Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Thomas Xu see patients?
Medicare's clinician data lists 1 practice location in Wilton, CT. Call before your visit to confirm the address.
What is Thomas Xu's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Thomas Xu accept Medicare assignment?
Yes. Medicare's clinician data says Thomas 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.
Does Thomas Xu offer telehealth?
Medicare's clinician data says Thomas Xu offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Thomas Xu?
(203) 276-3366, as listed in official Medicare / NPI Registry data.
What is Thomas Xu's NPI number?
1972881050. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Thomas Xu works

Medicare's Facility Affiliation Data lists Thomas 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 Thomas Xu is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Stamford Health Medical Group Inc444 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Wilton

Clinicians with the same Medicare primary specialty in Wilton, CT — not a recommendation.

All internal medicine doctors in Wilton →

Clinician information

CredentialMD
Medical schoolNew York Medical College
Graduation year2011
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1972881050
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