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Cardiac Electrophysiology

William Sauer, MD

Works at hospitals in Jamaica Plain, MA · Boston, MA · Chicago, IL · Massachusetts, Illinois

Summary

William Sauer, MD (Cardiac Electrophysiology) is listed by Medicare at 4 hospitals in Jamaica Plain, MA, Boston, MA and Chicago, IL. NPI 1609827583. 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 William Sauer, 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

Cardiac ElectrophysiologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
27Years since medical school (graduated 1999)
MaleGender (as listed)
Brigham and Womens Physicians Organization IncGroup practice

Quick answers

Which hospitals does William Sauer work at?
Medicare's official clinician data lists William Sauer at 4 hospitals: Brigham and Women Faulkner Hospital, Brigham and Women's Hospital, Massachusetts General Hospital and The University of Chicago Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does William Sauer see patients?
Medicare's clinician data lists 2 practice locations, including Jamaica Plain, MA and Boston, MA. Call before your visit to confirm the address.
What is William Sauer's specialty?
Medicare lists Cardiac Electrophysiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
Does William Sauer accept Medicare assignment?
Yes. Medicare's clinician data says William Sauer 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 William Sauer offer telehealth?
Medicare's clinician data says William Sauer offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for William Sauer?
(617) 983-7000, as listed in official Medicare / NPI Registry data.
What is William Sauer's NPI number?
1609827583. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where William Sauer works

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

Group practices

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

  • Brigham and Womens Physicians Organization Inc2,994 clinicians in the group

Specialties

Find other Cardiac Electrophysiology doctors in Massachusetts →

Other cardiac electrophysiologists in Massachusetts

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

All cardiac electrophysiologists in Massachusetts →

Clinician information

CredentialMD
Graduation year1999
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1609827583
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