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

Internal Medicine

John Kim, MD

Works at hospitals in Cambridge, MA · Boston, MA · Massachusetts

Summary

John Kim, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Cambridge, MA and Boston, MA. NPI 1871835181. 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 Kim, 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
13Years since medical school (graduated 2013)
Boston University School Of MedicineMedical school
MaleGender (as listed)
Cambridge Public Health CommissionGroup practice

Quick answers

Which hospitals does John Kim work at?
Medicare's official clinician data lists John Kim at 2 hospitals: Cambridge Health Alliance and Massachusetts General Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Kim see patients?
Medicare's clinician data lists 2 practice locations, including Everett, MA and Cambridge, MA. Call before your visit to confirm the address.
What is John Kim's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does John Kim accept Medicare assignment?
Yes. Medicare's clinician data says John Kim 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 John Kim?
(617) 389-6270, as listed in official Medicare / NPI Registry data.
What is John Kim's NPI number?
1871835181. 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 Kim works

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

Group practices

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

  • Cambridge Public Health Commission656 clinicians in the group

Specialties

Find other Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in Everett

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

All internal medicine doctors in Everett →

Clinician information

CredentialMD
Medical schoolBoston University School Of Medicine
Graduation year2013
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871835181
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