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

Cardiovascular Disease (Cardiology)

Mark Balek, MD

Works at hospitals in Elk Grove Village, IL · Chicago, IL · Evanston, IL … · Illinois

Summary

Mark Balek, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 5 hospitals in Elk Grove Village, IL, Chicago, IL and Evanston, IL and other places. NPI 1952557316. 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 Mark Balek, 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
22Years since medical school (graduated 2004)
MaleGender (as listed)
Chicago Cardiology Institute SCGroup practice

Quick answers

Which hospitals does Mark Balek work at?
Medicare's official clinician data lists Mark Balek at 5 hospitals: Alexian Brothers Medical Center 1, AMITA Health Resurrection Medical Center, Community First Medical Center, Saint Francis Hospital-Evanston and West Suburban Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mark Balek see patients?
Medicare's clinician data lists 1 practice location in Oak Park, IL. Call before your visit to confirm the address.
What is Mark Balek's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
Does Mark Balek accept Medicare assignment?
Yes. Medicare's clinician data says Mark Balek 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 Mark Balek offer telehealth?
Medicare's clinician data says Mark Balek offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mark Balek?
(708) 680-3800, as listed in official Medicare / NPI Registry data.
What is Mark Balek's NPI number?
1952557316. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mark Balek works

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

Group practices

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

  • Chicago Cardiology Institute SC24 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Illinois →

Other cardiologists in Oak Park

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

All cardiologists in Oak Park →

Clinician information

CredentialMD
Graduation year2004
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1952557316
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