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

Internal Medicine

Matthew Jankowski, MD

Works at hospitals in Lansing, MI · Michigan

Summary

Matthew Jankowski, MD (Internal Medicine) is listed by Medicare at 1 hospital in Lansing, MI. NPI 1679203954. 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 Matthew Jankowski, 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
7Years since medical school (graduated 2019)
MaleGender (as listed)

Quick answers

Which hospitals does Matthew Jankowski work at?
Medicare's official clinician data lists Matthew Jankowski at 1 hospital: Edward W Sparrow Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Matthew Jankowski see patients?
Medicare's clinician data lists 2 practice locations, including Lansing, MI and Flint, MI. Call before your visit to confirm the address.
What is Matthew Jankowski's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Matthew Jankowski accept Medicare assignment?
Yes. Medicare's clinician data says Matthew Jankowski 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 Matthew Jankowski?
(517) 374-7600, as listed in official Medicare / NPI Registry data.
What is Matthew Jankowski's NPI number?
1679203954. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Matthew Jankowski works

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

Group practices

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

  • McLaren Flint143 clinicians in the group
  • Capital Internal Medicine Associates P.C.65 clinicians in the group

Specialties

Find other Internal Medicine doctors in Michigan →

Other internal medicine doctors in Lansing

Clinicians with the same Medicare primary specialty in Lansing, MI — not a recommendation.

All internal medicine doctors in Lansing →

Clinician information

CredentialMD
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1679203954
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