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Cardiovascular Disease (Cardiology)

Joseph W. Mularczyk, MD

Works at hospitals in Michigan City, IN · Oak Park, IL · Chicago, IL · Indiana, Illinois

Summary

Joseph W. Mularczyk, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 3 hospitals in Michigan City, IN, Oak Park, IL and Chicago, IL. NPI 1215950720. 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 Joseph W. Mularczyk, 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

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
YesOffers telehealth
48Years since medical school (graduated 1978)
University Of Illinois College Of Med (chi/peor/rock/chm-Urb)Medical school
MaleGender (as listed)
Rush University Medical GroupGroup practice

Quick answers

Which hospitals does Joseph W. Mularczyk work at?
Medicare's official clinician data lists Joseph W. Mularczyk at 3 hospitals: Franciscan Health Michigan City, Rush Oak Park Hospital and Rush University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Joseph W. Mularczyk see patients?
Medicare's clinician data lists 2 practice locations, including Chicago, IL and Munster, IN. Call before your visit to confirm the address.
What is Joseph W. Mularczyk's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
Does Joseph W. Mularczyk accept Medicare assignment?
Yes. Medicare's clinician data says Joseph W. Mularczyk 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 Joseph W. Mularczyk offer telehealth?
Medicare's clinician data says Joseph W. Mularczyk offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Joseph W. Mularczyk?
(312) 454-2700, as listed in official Medicare / NPI Registry data.
What is Joseph W. Mularczyk's NPI number?
1215950720. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Joseph W. Mularczyk works

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

Group practices

Medicare enrollment lists Joseph W. Mularczyk as a member of this group (CMS data updated 2026-10-02).

  • Rush University Medical Group1,551 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Illinois →

Other cardiologists in Chicago

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

All cardiologists in Chicago →

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year1978
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1215950720
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