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Family Practice

Matthew J. Spiewak, DO

Works at hospitals in Naperville, IL · Elmhurst, IL · Illinois

Summary

Matthew J. Spiewak, DO (Family Practice) is listed by Medicare at 2 hospitals in Naperville, IL and Elmhurst, IL. NPI 1417908583. 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 J. Spiewak, 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

Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
30Years since medical school (graduated 1996)
Midwestern University, Chicago College Of Osteopathic MedMedical school
MaleGender (as listed)
Endeavor Health Medical GroupGroup practice

Quick answers

Which hospitals does Matthew J. Spiewak work at?
Medicare's official clinician data lists Matthew J. Spiewak at 2 hospitals: Edward Hospital and Elmhurst Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Matthew J. Spiewak see patients?
Medicare's clinician data lists 4 practice locations, including Lombard, IL, Elmhurst, IL and Evanston, IL. Call before your visit to confirm the address.
What is Matthew J. Spiewak's specialty?
Medicare lists Family Practice as the primary specialty.
Does Matthew J. Spiewak accept Medicare assignment?
Yes. Medicare's clinician data says Matthew J. Spiewak 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 Matthew J. Spiewak offer telehealth?
Medicare's clinician data says Matthew J. Spiewak offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Matthew J. Spiewak?
(331) 221-9001, as listed in official Medicare / NPI Registry data.
What is Matthew J. Spiewak's NPI number?
1417908583. 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 J. Spiewak works

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

Group practices

Medicare enrollment lists Matthew J. Spiewak as a member of this group (CMS data updated 2026-10-02).

  • Endeavor Health Medical Group3,350 clinicians in the group

Specialties

Find other Family Practice doctors in Illinois →

Other family doctors in Lombard

Clinicians with the same Medicare primary specialty in Lombard, IL — not a recommendation.

All family doctors in Lombard →

Clinician information

CredentialDO
Medical schoolMidwestern University, Chicago College Of Osteopathic Med
Graduation year1996
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1417908583
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