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Internal Medicine

Michael C. Zaslow, MD

Works at hospitals in Boston, MA · Burlington, MA · Melrose, MA … · Massachusetts

Summary

Michael C. Zaslow, MD (Internal Medicine) is listed by Medicare at 4 hospitals in Boston, MA, Burlington, MA and Melrose, MA and other places. NPI 1588662985. 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 Michael C. Zaslow, 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
49Years since medical school (graduated 1977)
Harvard Medical SchoolMedical school
MaleGender (as listed)

Quick answers

Which hospitals does Michael C. Zaslow work at?
Medicare's official clinician data lists Michael C. Zaslow at 4 hospitals: Beth Israel Deaconess Medical Center, Lahey Hospital & Medical Center, Burlington, Melrosewakefield Healthcare and Winchester Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael C. Zaslow see patients?
Medicare's clinician data lists 1 practice location in Winchester, MA. Call before your visit to confirm the address.
What is Michael C. Zaslow's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Pulmonary Disease.
Does Michael C. Zaslow accept Medicare assignment?
Yes. Medicare's clinician data says Michael C. Zaslow 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 Michael C. Zaslow offer telehealth?
Medicare's clinician data says Michael C. Zaslow offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Michael C. Zaslow?
(781) 729-8070, as listed in official Medicare / NPI Registry data.
What is Michael C. Zaslow's NPI number?
1588662985. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael C. Zaslow works

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

Specialties

Find other Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in Winchester

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

All internal medicine doctors in Winchester →

Clinician information

CredentialMD
Medical schoolHarvard Medical School
Graduation year1977
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1588662985
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