Joseph Marek, MD

Specialty: Cardiology

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801 South Washington Street

4th Floor

Naperville, IL 60540

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Office: 630-527-2730

Fax: 630-527-2754

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Primary location

3825 South Highland Avenue

Tower 2 - Suite 400

Downers Grove, IL 60515

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Office: 630-719-4799

Fax: 630-963-7420

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1512 North Naper Boulevard

Suite 176

Naperville, IL 60563

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Office: 630-526-2730

Fax: 630-526-2726

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Meet Joseph Marek, MD

About me

  • Cardiovascular Disease
  • Familial HypercholesterolemiaHypertensionHypertrophic CardiomyopathyLong QT SyndromePrevention of Coronary Heart DiseaseSports CardiologySudden Cardiac Death Prevention



  • Loyola University Medical Center
  • Cleveland Clinic Foundation
  • Cleveland Clinic Hospital
  • Loyola University Medical Center

Board certifications

  • Cardiology

Hospital affiliations

  • Advocate Good Samaritan Hospital

Insurance accepted

  • AAH Preferred – Team Member Plan
  • AAH Select – Team Member Plan
  • AARP Medicare Advantage Access HMO
  • Aetna Better Health Premier Plan MMAI
  • Aetna Coventry (Aetna Medicare) HMO
  • Aetna EPO
  • Aetna HMO
  • Aetna Managed Choice (MC) POS
  • Aetna Medicare HMO
  • Aetna Medicare POS
  • Aetna Medicare PPO
  • Aetna Medicare Value Plan PPO
  • Aetna NAP - PPO
  • Aetna Open Choice PPO
  • Aetna POS
  • Aetna Premier Care Network
  • Aetna Select
  • Aetna Signature Administrators PPO
  • Aetna State of Illinois HMO
  • Aetna State of Illinois Open Access Plus
  • Aetna State of Illinois PPO
  • Aetna Value Performance Network
  • Beech Street Network PPO
  • Benefit Plan Administrators (BPA)
  • Benefits Services and Systems, Inc
  • Blue Advantage HMO
  • Blue Cross Community FHP
  • Blue Cross Community ICP
  • Blue Cross Community MMAI
  • Blue Cross HMO Illinois
  • Blue Cross Med Select PPO
  • Blue Cross Medicare Advantage HMO
  • Blue Cross Medicare Advantage HMO-POS
  • Blue Cross Medicare Advantage PFFS
  • Blue Cross Medicare Advantage PPO
  • Blue Cross Medicare Supplement PPO
  • Blue Medicare Advocate Health HMO
  • Blue Precision HMO
  • BlueCare Direct
  • Cigna APWU Health Plan Open Access Plus
  • Cigna EPO
  • Cigna Health Partners POS
  • Cigna Healthspring True Choice PPO
  • Cigna HMO
  • Cigna NALC Health Benefits Plan
  • Cigna Open Access Plus
  • Cigna Open Access POS
  • Cigna POS
  • Cigna PPO
  • Cigna-HealthSpring Medicare Advantage HMO
  • Cofinity PPO
  • Coventry / FirstHealth
  • Coventry Health Care HMO
  • Coventry Health Care Open Access POS
  • Coventry Health Care POS
  • Coventry Health Care PPO
  • First Health Network PPO
  • FirstHealth / Coventry Personal Care
  • Galaxy Health Network PPO
  • Great West Healthcare - Cigna EPO
  • Great West Healthcare - Cigna PPO
  • HealthLink PPO
  • HealthSmart Preferred PPO
  • HST Care Connect EPO
  • HST Care Connect PPO
  • Humana Choice POS
  • Humana Community Select HMO
  • Humana HMO
  • Humana Illinois CCN HMO
  • Humana Medicare Advantage HMO
  • Humana Medicare Choice PPO
  • Humana Medicare Gold Plus HMO
  • Humana Medicare Supplement Plan
  • Humana MMAI
  • Humana National HMO
  • Humana National POS
  • Humana National POS - Open Access
  • Humana POS
  • Humana PPO
  • Medicare
  • Meridian
  • Meridian MMAI
  • MultiPlan PPO
  • SEIU – Local 4 HMO
  • SEIU – Local 4 PPO
  • Tricare Prime
  • UFCW Local 1546 Health and Welfare Fund (UMC)
  • UHC / AARP Medicare Advantage Value HMO - POS
  • UHC / AARP Medicare Complete HMO
  • UHC / AARP Medicare Complete Plan 1 HMO
  • UHC / AARP Medicare Complete Plan 2 HMO
  • UHC / AARP Medicare Supplement
  • UHC National Railway Carriers & United Transportation Union Health and Welfare
  • UHC Railroad Employees National Health & Welfare Plan
  • UHC/ AARP Medicare Advantage Choice PPO
  • UniCare PPO
  • Union Health Services, Inc.
  • Union Medical Care PPO
  • United Health One Golden Rule
  • United Healthcare Charter HMO
  • United Healthcare Choice Plus PPO
  • United Healthcare Choice PPO
  • United Healthcare Core PPO
  • United Healthcare Group Medicare Advantage PPO
  • United Healthcare Indemnity
  • United Healthcare Medica
  • United Healthcare Medicare Complete Assure PPO
  • United Healthcare Navigate HMO
  • United Healthcare NexusACO OA
  • United Healthcare NexusACO R
  • United Healthcare Options PPO
  • United Healthcare Oxford
  • Wellcare Health Plans HMO

Ratings and reviews

Overall rating

based on 551 patient ratings.


July 27, 2020 8:31 PM

very easy to talk to

July 27, 2020 8:31 PM

I actually look forward to seeing Dr Marek. I feel very comfortable with him.

July 27, 2020 1:32 PM

Dr. Marek is a great doctor!

July 27, 2020 1:32 PM

I've been with Midwest Heart 40 plus years. I miss Dr. X. Their will never be another doctor like him though I'm very happy with Dr. Marek.

July 26, 2020 2:31 PM

Dr. Marek is, as always, excellent. He is organized, efficient, and professional. He is positive and encouraging. While he is careful about the amount of time spent in the exam room with me I never feel rushed.

July 26, 2020 2:31 PM

The front desk and check out staff are very indifferent and frequently make me feel like patients are bothering them. They are not good ambassadors of the cardiovascular or Advocate brand.

July 24, 2020 9:53 AM

Very good, as usual.

July 24, 2020 9:53 AM

Good experience.

July 21, 2020 7:46 AM

Dr. Marek is a very well versed and always answers my extra questions.

July 21, 2020 12:00 AM

dr marek has always been a good listener. he always listens to what you have to say first.

July 17, 2020 12:00 AM

I always feel better after seeing this provider because he is able to hear out my concerns and have the answers to my questions. Also, I appreciate the fact that I am able to set an appointment right away.

July 15, 2020 9:03 AM

I am very well satisfied with my health care providers.

July 9, 2020 12:00 PM

Excellent care as always and Dr. Marek takes time to explain all aspects of my health and treatments.

July 9, 2020 7:59 AM

Speaks normally - no doctor speak.

July 9, 2020 7:59 AM

Easy to ask questions.

July 8, 2020 10:12 AM


July 8, 2020 10:12 AM


July 6, 2020 3:10 PM

I feel very blessed to have a physician of Dr. Mareks ability as an advisor.

July 6, 2020 1:28 PM

Marrick and his nurses did a great job and I'm very happy with them

July 6, 2020 1:28 PM

I had a great experience

July 1, 2020 7:46 AM

very good visit

June 30, 2020 10:05 AM

Dr Joe Marek knows his stuff.

June 29, 2020 1:49 PM

Dr Joseph Marek is my regular cardiologist. He is very smart. He is thorough (i.e. he covers all the bases during our office visits). He volunteers his time to check high school students in the Chicago area who may be in danger of unknown heart disease. He is easy to talk with. And he is kind and warm-hearted. (It makes good sense that as a cardiologist he is warm-hearted. The two go together.)

June 16, 2020 10:09 AM

Dr. Marek is always very informative and pleasant to talk with. I trust him completely with my healthcare. He also has a positive attitude and a great sense of humor!

June 8, 2020 2:32 PM

This office & provider (Dr. Joseph Marek) is the best run office & doctor I ever had.

June 1, 2020 10:02 AM

Dr. Marek is great!!

May 28, 2020 2:02 PM

This was a telephone visit that replaced a scheduled office visit due to the coronavirus pandemic. The visit was very helpful.

May 28, 2020 2:02 PM

Very good experience.

May 28, 2020 1:57 PM

I have been Dr. Marek's patient for almost 20 years. He is a kind, compassionate, and very knowledgeable GENTLEMAN.

May 24, 2020 9:51 PM

calm, respectful , takes time needed, small talks, educates advises.

May 24, 2020 9:51 PM

always a good experience

May 18, 2020 3:24 PM

phone visitall was good

May 18, 2020 3:24 PM

as always great experience

May 14, 2020 8:11 AM


May 11, 2020 1:01 PM

Dr. Marek has kept my heart in working order for over 30 years I look forward to our visit.

May 2, 2020 8:09 AM

informative professional caring

May 2, 2020 8:09 AM

very good experience

April 28, 2020 8:49 AM

as usual it was excellent

April 20, 2020 9:18 AM

Very professional, thorough, informative, and kind.

April 20, 2020 9:18 AM

It was a very good experience.

March 30, 2020 7:33 PM

every thing was very perfessional

March 29, 2020 5:31 AM

Dr. Marek is the best we could ask for, we refer everyone needing his expertise to see him.

March 29, 2020 5:31 AM


March 26, 2020 9:04 AM

Dr. Marek is an amazing doctor!

March 15, 2020 6:23 AM

Everybody seems courteous & respectful.

March 15, 2020 6:23 AM

No bad experience for me - only good!

March 12, 2020 9:46 AM

Very pleasant doctor. My only issue was the amount of time it took to get an appointment.

February 29, 2020 3:46 PM

Regarding questions about procedure - this is a routine procedure that is required for my cardiac condition so I do not have a reason to question or discuss it further with Dr. Marek. I consider Dr. Marek to be efficient, respectful, takes the time to listen if I have issues or questions and is an expert in his field.

February 29, 2020 3:46 PM

I have been treated by Dr. Marek for years and I have no complaints. I have confidence in him and his staff. The support staff, the nursing staff - have always been professional and respectful as has Dr. Marek himself.

February 24, 2020 4:19 PM

Dr Marek by far is the very best physician I have ever seen. listens to what I say, asks relevant questions & very caring. I hope to find a primary care physician who could come close to Dr Marek's caliber.

February 22, 2020 3:51 AM

thank you Dr. Marek for your professionalism, expertise, and caring attitude.

February 21, 2020 5:22 AM

Everything was fine!

February 18, 2020 8:49 AM

the best cardiologist I've ever worked with. He really listens and addresses concerns and gives options.

February 17, 2020 3:13 PM

took time to explain tests. never felt rushed

February 17, 2020 1:55 PM

Dr. Marek is very thorough in his diagnosis and recommended action plan.

February 17, 2020 9:23 AM

Always feel comfortable with Dr. Marek. He is interested in what I say and will advise how best to proceed to improve my health and lifestyle.

February 15, 2020 7:53 AM

Dr. Marek is excellent. He has always been so thorough and goes above and beyond educating me on my condition and expressing to me the pros and cons of all different kinds of testing and medications, diet and physical exercise. I highly recommend him to anyone needing a cardiologist. He not only has been excellent to me, but also my husband and daughter when cardiology issues have arisen. Advocate is very lucky to have him as one of their physicians.

February 13, 2020 12:18 PM

He is by far the very best all around doctor - He spends enough time, is very thorough and most pleasant.

February 13, 2020 12:18 PM

He is without any doubts THE best cardiac doctors available - He has done an excellent job keeping me in good health.

February 9, 2020 8:29 PM

I've been seeing Dr. Joseph Marek for many years and am very pleased with him.

February 7, 2020 3:27 PM

Dr. Marek is good at explaining complicated issues and is an excellent doctor.

February 7, 2020 3:27 PM

I would recommend Dr. Marek to family and friends.

February 6, 2020 11:25 AM

I need to have my aortic valve replaced. I think it would be helpful if there would be a packet or handout that would. Give details on the procedure and how to proceed other than the verbal conversation regarding. Verbally it's a lot of information to absorb and try to understand.

February 5, 2020 7:08 AM

Overall the visit was good - the nurse was excellent & Dr. Marek is excellent. Very pleased.

January 27, 2020 1:38 PM

Good experience; staff was professional as was the doctor. He was clear, easy to understand. Gave me good justification for treatment for the issue that I experienced.

January 25, 2020 10:39 AM

excellent provider

January 25, 2020 10:39 AM


January 21, 2020 9:54 PM

Drs. Marek and X are EXCELLENT

January 11, 2020 11:23 PM

Dr. Joseph Marek is an amazing doctor...kind, patient and very knowledgeable. He is able to communicate clearly and calmly which is important to a nervous patient.

January 11, 2020 12:24 PM

He is the most approachable Dr I have ever had. I have always believed he really cares about me and my health in a personal way. Not just any patient. There is no way he could possibly be more caring and concerned.

January 11, 2020 12:24 PM

He has always gone out of his way to help me in any way he possibly could. That care and concern goes for all the folks on his team also. I have never had any issue at all with the folks there.

January 6, 2020 12:28 PM

Dr. Marek is always very thorough and willing to answer my questions - his nurse is very courteous and covers all the concerns I may have.

January 6, 2020 12:28 PM

The front desk has become very unprofessional - will not stand up to speak and are hard to understand. The woman on thew right asked questions I felt were inappropriate. The phone service is not professional.

January 1, 2020 8:20 AM

Dr Marek is an outstanding MD that is exceptionally knowledgeable , thorough, and generous with his time. Thank you Dr Marek for the excellent care you provide!

December 28, 2019 9:38 AM

I had a bad EKG reading compared to previous one. Dr. Marek was all over it and tests that needed to be done, called promptly with results and next steps. Unbelievable care and concern.

December 28, 2019 9:38 AM

Dr. Marek knew for my last test my concern, he called with the results as I was leaving the hospital after the test with results. He was all over it. Great physician. Very caring and compassionate.

December 26, 2019 9:19 AM


December 26, 2019 9:19 AM


December 21, 2019 11:20 AM

Professional - courteous - kind - caring.

December 19, 2019 3:05 PM

Dr Marek always takes time to answer my questions and discuss my health/heart condition. He is never rushed to see the next patient.

December 5, 2019 1:27 PM

The exam was pretty thorough.

November 23, 2019 10:24 AM


November 17, 2019 11:00 PM

I see Dr. Marek for blood clots.

November 17, 2019 11:00 PM

Very good experience

November 17, 2019 11:00 PM

Dr Marek and his staff are very good and courteous

November 11, 2019 5:13 PM

I really like this doctor. He takes the time to really talk to you about things you want to talk about. He is direct and tells you straight what's going on. I really appreciate that.

November 8, 2019 11:00 PM

Very good doctor

November 5, 2019 11:00 PM


November 4, 2019 6:00 PM

Dr, Marek and nurse treated me very good

November 2, 2019 7:00 PM

I have given quality and caring health care be Dr. Marek for over 20 years.

October 29, 2019 7:00 PM

Dr. Marek is an exceptional provider I put my trust in him.

October 27, 2019 7:00 PM

He is the best. Period.

October 21, 2019 7:00 PM

Very nice.

October 21, 2019 7:00 PM

always a great experience.

October 11, 2019 7:00 PM

always good

October 8, 2019 7:00 PM

This visit was very good and I feel as if it was to my benefit

October 2, 2019 7:00 PM

If there was a higher rating for Dr. Marek & staff, I would definitely go high than a - 10 -

September 29, 2019 7:00 PM


September 28, 2019 7:00 PM


September 26, 2019 7:00 PM

Very fortunate to have Dr. Marek as my cardiologist outstanding reputation.

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Information listed under the "clinical interests" columns was supplied by the physicians. It is provided to you for informational purposes only, and neither Advocate Health Care nor the Advocate facility has independently verified the information. If you wish to confirm the information contained herein, or if you have any other questions about a particular physician, please contact the physician’s office.

Unless otherwise stated, physicians are independent practitioners who are not employees or agents of Advocate Health Care or the Advocate facility where the care is being provided. Neither Advocate Health Care nor the Advocate facility shall be liable for the medical care provided or decisions made by these independent physicians.

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