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

Pediatric Medicine

Peter Hsu, MD

Works at hospitals in Milton, MA · Needham, MA · Boston, MA … · Massachusetts

Summary

Peter Hsu, MD (Pediatric Medicine) is listed by Medicare at 4 hospitals in Milton, MA, Needham, MA and Boston, MA and other places. NPI 1003173592. 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 Peter Hsu, 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

Pediatric MedicinePrimary specialty
YesAccepts Medicare assignment
14Years since medical school (graduated 2012)
Northeastern Ohio University College Of MedicineMedical school
MaleGender (as listed)
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr IncGroup practice (+3 more)

Quick answers

Which hospitals does Peter Hsu work at?
Medicare's official clinician data lists Peter Hsu at 4 hospitals: Beth Israel Deaconess Hospital - Milton, Beth Israel Deaconess Hospital - Needham, Beth Israel Deaconess Medical Center and Metrowest Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Peter Hsu see patients?
Medicare's clinician data lists 5 practice locations, including Framingham, MA, Worcester, MA and Milton, MA. Call before your visit to confirm the address.
What is Peter Hsu's specialty?
Medicare lists Pediatric Medicine as the primary specialty, and also Hematology/Oncology and Internal Medicine.
Does Peter Hsu accept Medicare assignment?
Yes. Medicare's clinician data says Peter Hsu 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 Peter Hsu?
(508) 383-1000, as listed in official Medicare / NPI Registry data.
What is Peter Hsu's NPI number?
1003173592. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Peter Hsu works

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

Group practices

Medicare enrollment lists Peter Hsu as a member of these groups (CMS data updated 2026-10-02).

  • Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc1,740 clinicians in the group
  • Associated Physicians of Harvard Medical Faculty Physicians at Beth Is565 clinicians in the group
  • Hospitalist Physicians of Massachusetts PC85 clinicians in the group
  • Massachusetts Acute Care Specialists PC43 clinicians in the group

Specialties

Find other Pediatric Medicine doctors in Massachusetts →

Other pediatricians in Massachusetts

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

All pediatricians in Massachusetts →

Clinician information

CredentialMD
Medical schoolNortheastern Ohio University College Of Medicine
Graduation year2012
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003173592
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