Mark J Tatara, MD

Specialty: Internal Medicine

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Primary location

6840 South Main Street

Suite 200

Downers Grove, IL 60515

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Office: 630-869-5382

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3825 Highland Avenue

Tower 1 - Suite 5B

Downers Grove, IL 60515

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Office: 630-963-9667

Fax: 630-963-9936

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Meet Mark J Tatara, MD

About me

  • Primary Care for Adults 17 and Over
  • Congestive Heart FailureCOPDCoronary Artery DiseaseDiabetesDizzinessFatigueFibromyalgiaGeriatric CareHeadachesHypertension



  • Loyola University Medical Center, Internal Medicine
  • Loyola University Medical Center
  • Chicago Medical School

Board certifications

  • Internal Medicine

Hospital affiliations

  • Advocate Good Samaritan Hospital
  • Advocate Illinois Masonic Medical Center

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 737 patient ratings.


July 29, 2020 1:06 PM

Overall good experience.

July 28, 2020 10:29 AM

Dr. Tatara is always very personable. At the same time, he moves along and gets things done efficiently.

July 28, 2020 9:43 AM

Very good

July 27, 2020 4:46 PM

He diagnosed and prescribed accurately

July 27, 2020 2:40 PM

Very good experience.

July 27, 2020 2:40 PM

No problems. The physician was very helpful. Thank you.

July 27, 2020 1:56 PM

dr Tatara spent even more time with my dad than usual. He chatted with my dad about his work (from years ago) and dr T shared a bit about his fathers work. dr t is always very patient with my 98 year old father and gives good practical medical advice.

July 27, 2020 1:56 PM

always good.

July 19, 2020 12:08 PM

I was really impressed with Dr. Tatara. this was my first visit with him and he made me feel very comfortable.

July 13, 2020 6:32 PM

Excellent, very helpful

July 13, 2020 2:32 PM

I feel his medical knowledge is current and trustworthy

July 8, 2020 11:32 AM


July 8, 2020 11:32 AM

Good visit.

July 7, 2020 6:33 AM


July 7, 2020 6:33 AM

I love this Md. He is very professional and cares about the well being of his patients.

July 6, 2020 11:16 PM

it was a good experience. I like my doctor.

July 6, 2020 12:26 AM

Good experience very informative and helpful

July 4, 2020 9:33 AM

Dr Tatara is always pleasant and answers any questions I may have thoroughly.

July 2, 2020 12:00 AM

I am very satisfied with all services provided by Dr. Tatara.

July 2, 2020 12:00 AM

I have contacted via email Dr. Tatara and he has promptly responded.

June 29, 2020 10:22 PM

Dr. Tamara is overall helpful and interested in my health. He is efficient in the appointment.

June 29, 2020 4:01 PM

Dr. Tatara listened ! Made you feel cared for ! Very attentive!

June 23, 2020 11:55 PM

He's very professional. He makes your life easy. Overall, he's a solid doctor.

June 23, 2020 11:55 PM

He's just overall solid. I had a good experience with him.

June 8, 2020 2:33 PM

Very happy with provider - but - I called to have this video appointment. Still use certain the purpose! But did ask some questions about virus.

June 2, 2020 7:26 AM

The visit was very good.

June 2, 2020 7:26 AM

Everything was very good.

May 25, 2020 5:01 PM

all good

May 25, 2020 2:31 PM

I did not want to go in to a doctor's office during the pandemic but my ears were very clogged with wax and I needed to have them irrigated. (it is something that I have had to do in the past and because of the situation, kept putting it off) I felt that all precautions were taken and I am glad that I went in to see Dr. Tatara.

May 22, 2020 11:21 AM

Very good experience.

May 11, 2020 2:17 PM

I trust and feel confident in Dr. Tatara

May 4, 2020 1:39 PM

he is a good doctor

April 27, 2020 9:32 AM

Getting through to the office for appointment and for questions was impossible. I waited more than 1 HOUR & then left my # for call back which never came. Called next day & got someone in office. Apparently when office in Downers Grove forwards their phones. Call backs don't always happen.

April 22, 2020 8:11 AM

I am very happy with Dr. Tatara - he has taken over for Dr. X who retired. The people working at desk very friendly & helpful.

April 22, 2020 8:11 AM

I find my experience with Dr. Tatara very professional - having the blood test facility in same building very convenient -

April 3, 2020 12:00 AM

It was the first time visiting Dr. Tatara so we talked about my condition & problem I was having and gave me good solutions.

March 30, 2020 2:22 PM

I like my doctor

March 30, 2020 2:22 PM

dr.tatara i s the best... he anwers my questions and does a remarkable job..

March 29, 2020 2:28 PM


March 24, 2020 9:39 AM

The Dr is awesome. By chance, neighbor recommended Dr. Tataro. I'm am very happy with the Dr. He got me back on track with all my health concerns and even those that I took granted. Dr X picked a good one to take his practice over.

March 24, 2020 9:39 AM

Good experience. Received follow up call. His attention to detail is remarkable, and he was also up to date on my history.

March 23, 2020 10:22 PM

excellent expirence for that visit.

March 23, 2020 10:22 PM

very good

March 21, 2020 8:43 AM

It seems like healthcare has gotten away from the routine stuff when you go in for a visit. Doctors don't typically check for eyes ears nose and throat or listen to your chest unless you ask which is disappointing. I know it's time-consuming and I know in today's medical care that all takes extra time. But could that help prevent something or you might see the wax buildup in the ears of the elderly or see something in the throat that's coming on. So I find myself asking each time I come in for the doctor to check my chest. I have a heart problem.

March 18, 2020 3:35 PM

Very calm and pleasant manner.

March 16, 2020 2:39 PM

Everyone is always very pleasant and easy to work with. Very happy with them.

March 12, 2020 11:00 AM

Was squeezed into Dr. Tatara's schedule Sunday evening due to severe flu symptoms without difficulty - seen right on time. EVERYONE at office friendly & professional.

March 12, 2020 11:00 AM

Nurse that we spoke to Sunday evening way EXCELLENT! Dr. Tatara knew my wife, medical history & expressed concerns & introductory if she exhibited flu symptoms.

March 11, 2020 8:36 AM

There was no discrimination. How refreshing to have such a seasoned, thorough, thoughtful, understanding, & so qualified doctor to be an internist! We live in Chicago Land (Downer's Grove) but instead of feeling like big city felt small town visit with your doctor. He cares, non-judgmental, & great bed side manner.

March 7, 2020 5:51 AM

everything was great.

March 3, 2020 8:05 AM

This was my first visit as a new patient, and this doctor displayed all the qualities one would want in a health provider. He was friendly, seemed interested in me as a person as well as a patient, and discussed my health needs in a way I had no problem understanding. He was responsive to questions and made a point of assuring me that someone was always available for questions or urgent visits. All in all, he made me feel that I had made a good decision in choosing this doctor for my care.

February 29, 2020 3:28 PM

Very good.He was very Thorough

February 26, 2020 6:40 PM

I lost my primary care provider due to retirement and this was the first visit with this doctor. I am very pleased to be one of his patients and hope to have a long association with him.

February 26, 2020 6:40 PM

Excellent experience, it is sometimes stressful to begin a relationship with a new doctor and he made a very good experience.

February 24, 2020 8:46 PM

Dr. Tatara is a kind and caring provider. He takes time to listen and answer my questions.

February 24, 2020 8:46 PM

Dr. Tatara is not the closest doctor (distance), however, he is worth the drive.

February 24, 2020 6:15 PM

I use my patient portal to communicate questions or concerns to Dr. Tatara. Dr. T usually responds within hours.

February 24, 2020 5:16 PM

Above average

February 15, 2020 7:33 AM

I was satisfied with my first experience with this provider.

February 4, 2020 1:56 PM

Very professional, he was nice.

February 3, 2020 7:32 PM

A very good doctor. Listens to my questions.

February 3, 2020 2:35 PM

Good visit and good experience

February 3, 2020 1:51 PM

Dr. Tatara was very helpful.

February 3, 2020 1:51 PM


February 2, 2020 6:26 AM

dr Tatara is first rate. he is setting the standards that all doctors should follow

January 25, 2020 3:17 PM

very professional and courteous

January 25, 2020 3:17 PM

excellent experience as always when seeing this provider

January 21, 2020 7:40 AM

The provider is knowledgeable but I felt rushed and that the provider was dismissive of my concerns.

January 13, 2020 2:29 PM

dr Mark made me feel very comfortable, it was my first visit with him

January 13, 2020 2:29 PM

dr Mark is a very nice person, and great dr.

January 12, 2020 2:40 PM

I got a same day appointment with this doctor because my regular doctor was on vacation. I was impressed and grateful that I could see him that quickly.

January 6, 2020 4:20 PM

Dr. Tatara got me in for an appointment, saving me a possible trip to the urgent care or ER. We saved on the cost, the wait, testing and Medicine Hat might have been prescribed at the ER.

January 6, 2020 4:20 PM

We were thankful he called us and encouraged us to come in, and thankfully, correctly diagnosing the situation.

January 6, 2020 2:51 PM


January 4, 2020 5:12 AM

Very Professional and attentive.

January 4, 2020 5:12 AM

Excellent experience. I was treated with dignity and respect by all personal.

January 3, 2020 2:16 PM

Good experience.

December 31, 2019 1:09 PM

Very good experience, I was treated as person in need for medical attention. All people I had contacted are good professionals.

December 28, 2019 7:48 PM

This was a routine yearly wellness checkup, and was done professionally and satisfactorily.

December 28, 2019 7:48 PM

Overall very positive experience.

December 23, 2019 10:32 PM

HE was concerened about me as I had been ill for several days.

December 23, 2019 10:32 PM

I liked the idea that his staff took the time to even return my call.

December 23, 2019 2:29 PM

Thoughtful and considerate

December 23, 2019 9:52 AM


December 17, 2019 8:06 PM

Best doctor I've had in a very long time. No waiting to get in. He listened patiently to my long list of issues, providing thoughtful advice for each. Called promptly with lab results. I'm delighted to have found him. Far exceeded expectations.

December 14, 2019 6:05 PM

Dr Mark is an excellent doctor. he is very knowledgeable and personable. I have confidence in him as my heath care provider.

December 14, 2019 6:05 PM

great experience

December 9, 2019 7:13 PM

Dr. Tatara has an excellent "bedside" manner. He listens, provides information and is reassuring.

December 9, 2019 5:31 PM

I was very impressed that Dr. Tatara called me with the results of my urinalysis test.

December 9, 2019 5:31 PM

I feel that Dr. Tatara cares about his patients.

December 9, 2019 1:57 PM

It was my annual physical exam and it went well.

December 9, 2019 1:40 PM

Just fine. It was a check in to be sure that I needed the prescription meds that I was taking and was taking them appropriately. I appreciate that. I appreciate that Dr. T. doesn't "push" my meds and does talk with me about alternatives to medications and ways to keep a healthy lifestyle.

December 9, 2019 1:40 PM

Good experience overall. I'm just disappointed that all providers have so little time to spend with their patients. Dr. T. is no exception either way. He has great patient attentiveness, and I appreciate him. I wish insurance allowed more time.

December 2, 2019 8:23 PM

Dr Tatera was polite a good listener and helpful.

December 2, 2019 8:23 PM

Our visit was good.

December 1, 2019 6:42 PM

Thorough friendly Doctor. female PA not friendly & did not introduce herself to me. I had to ask the male PA what his name was; neither were very friendly

November 25, 2019 10:58 PM

had positive experience

November 23, 2019 11:08 AM

he was helpful and knowledgeable. Took time with me and not in a hurry.

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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.

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