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Nephrology

John Danziger, MD

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

Summary

John Danziger, MD (Nephrology) is listed by Medicare at 4 hospitals in Milton, MA, Needham, MA and Boston, MA. NPI 1730161142. 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 John Danziger, 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

NephrologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
27Years since medical school (graduated 1999)
University Of Texas Southwestern Medical School At DallasMedical school
MaleGender (as listed)
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr IncGroup practice (+2 more)

Quick answers

Which hospitals does John Danziger work at?
Medicare's official clinician data lists John Danziger at 4 hospitals: Beth Israel Deaconess Hospital - Milton, Beth Israel Deaconess Hospital - Needham, Beth Israel Deaconess Medical Center and Boston Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Danziger see patients?
Medicare's clinician data lists 11 practice locations, including Boston, MA, Dedham, MA and Burlington, MA. Call before your visit to confirm the address.
What is John Danziger's specialty?
Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
Does John Danziger accept Medicare assignment?
Yes. Medicare's clinician data says John Danziger 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 John Danziger offer telehealth?
Medicare's clinician data says John Danziger offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for John Danziger?
(781) 983-9088, as listed in official Medicare / NPI Registry data.
What is John Danziger's NPI number?
1730161142. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John Danziger works

Medicare's Facility Affiliation Data lists John Danziger 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 John Danziger is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 11; the Medicare profile lists all.

Group practices

Medicare enrollment lists John Danziger 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
  • Atrius Health Inc1,222 clinicians in the group
  • Malik MD Health Services, LLC3 clinicians in the group

Specialties

Find other Nephrology doctors in Massachusetts →

Other nephrologists in Boston

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

All nephrologists in Boston →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Southwestern Medical School At Dallas
Graduation year1999
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1730161142
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