Summary

Dr. Joseph Marek is a cardiovascular disease specialist with over five decades of experience treating heart and vascular conditions. He earned his medical degree from Loyola University of Chicago Stritch School of Medicine and completed his residency at Loyola University Medical Center. Throughout his extensive career spanning 51 years, Dr. Marek has developed deep expertise in cardiovascular medicine. He is fluent in both English and Spanish.

Dr. Marek practices at multiple locations in Downers Grove and Naperville and maintains affiliations with Advocate Good Samaritan Hospital, Northwestern Medicine Central Dupage Hospital, Edward Hospital, and RML Specialty Hospital Hinsdale. He specializes in treating high cholesterol and lipid disorders, including familial conditions that run in families. His practice includes comprehensive cholesterol screening and blood testing to monitor heart health. Patients consistently rate his care highly, giving him an average rating of 4.9 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.9
  • 51 years of experience
  • speaks English, Spanish
  • Loyola University Medical Center
  • 1 written review
  • 1 specialty
  • 18 areas of expertise
  • 4 hospital affiliations
  • 4 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Joseph Clarence Marek has 4 locations

Advocate Medical Group Cardiology

3825 Highland Ave Ste 400Downers Grove, IL 60515
Mon8:00 am - 6:00 pm
Tue8:00 am - 6:00 pm
Wed8:00 am - 6:00 pm
Thu8:00 am - 6:00 pm
Fri8:00 am - 6:00 pm
SatClosed
SunClosed

Advocate Good Samaritan Hospital

3815 Highland AveDowners Grove, IL 60515

Edward Hospital

801 S Washington StNaperville, IL 60540

Advocate Heart Institute

1512 N Naper Blvd Ste 176Naperville, IL 60563
Mon7:00 am - 5:30 pm
Tue7:00 am - 5:30 pm
Wed7:00 am - 5:30 pm
Thu7:00 am - 5:30 pm
Fri7:00 am - 5:30 pm
SatClosed
SunClosed

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Dr. Joseph Clarence Marek, MDDr. Subir Bipin Shah, DODemetrios Doukas, DODr. Max Jacob Liebo, MD
Cardiovascular DiseaseCardiovascular DiseaseCardiovascular DiseaseCardiovascular Disease
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.9 
51 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Polish, Spanish Speaks English Speaks English, Polish, Spanish
Downers Grove , ILMaywood , ILMaywood , ILMaywood , IL
Med School: Loyola University Of Chicago Stritch School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Joseph Clarence Marek

  • Accepts Medicare

Medical Specialties

Dr. Joseph Clarence Marek has the following specialty

Specialty Expertise

Dr. Joseph Clarence Marek has the following 18 areas of expertise

  • Acute Coronary Syndrome (ACS)
  • Angioplasty
  • Arrhythmia
  • Atherosclerosis
  • Blood Clot
  • Coronary Disease
  • Heart Attack
  • Heart Block
  • Heart Diseases
  • Heart Failure
  • High Blood Pressure (Hypertension)
  • High Cholesterol
  • High Cholesterol (Hypercholesterolemia)
  • Hypertension
  • Myocardial Infarction
  • Stroke
  • Unstable Angina
  • Vascular Graft Occlusion

Certifications, License, & Education

51 Years Experience

Dr. Joseph Clarence Marek holds an expired medical license in the state of Illinois.

Medical License

Medical Doctor with an expired medical license in the state of Illinois that expired in 2026.

Education & Training

Residency

Completed their residency at Loyola University Medical Center.

Medical School

Graduated from Loyola University Of Chicago Stritch School Of Medicine in 1975.

NPI Number

Dr. Marek's NPI number is 1548216302.

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Frequently Asked Questions

What languages does Dr. Joseph Marek speak?
Dr. Joseph Marek speaks English and Spanish.
Which hospitals is Dr. Joseph Marek affiliated with?
Dr. Joseph Marek is affiliated with Advocate Good Samaritan Hospital, Northwestern Medicine Central Dupage Hospital, Edward Hospital, and Rml Specialty Hospital Hinsdale.
Does Dr. Joseph Marek accept my insurance?
You can see the insurance plans that Dr. Joseph Marek accepts on their Vitals profile.
Does Dr. Joseph Marek accept virtual/telehealth appointments?
Dr. Joseph Marek has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Joseph Marek's office located?
Dr. Joseph Marek's office is located at 3825 Highland Ave Ste 400, Downers Grove, IL, 60515.

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