Dr. Mariusz Milejczyk, MD | Libertyville, IL | Internal Medicine

.about .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Mariusz Milejczyk specializes in internal medicine, bringing over three decades of medical expertise to his practice. He earned his medical degree from the Medical University of Bialystok and completed his residency training at Sinai Grace Hospital. With 36 years of experience treating adult patients, Dr. Milejczyk provides comprehensive care for a wide range of internal medicine conditions. He speaks both Polish and Spanish, allowing him to communicate effectively with diverse patient populations.

Dr. Milejczyk practices at Advocate Condell Medical Center in Libertyville, Illinois, and maintains affiliations with both Advocate Condell Medical Center and Northwestern Medicine Lake Forest Hospital. His clinical focus includes managing high blood pressure and treating elevated cholesterol levels in children and teenagers. He regularly performs complete blood counts to assess overall health and orders lipid panels to monitor cholesterol and heart health. Patients rate Dr. Milejczyk …an average of 3.3 stars for his care.

Read More Read less

AI-generated from data on this provider profile.

3.3

35 Ratings
36 years of experience
speaks Polish, Spanish
Sinai Grace Hospital
10 written reviews
1 specialty
6 areas of expertise
1 board certification
2 hospital affiliations
1 office location
Male

35 ratings & reviews

Sort:

Showing 1 to 10 of 10 reviews

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

My husband had many visits with him. He found SO many things wrong with my husband during in office testing. My husband went to other doctors for follow-ups and testing since Dr. Milejczyk's office never followed-up. NONE of the original the diagnoses made by Dr. Milejczyk were correct.

November 1st, 2018

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

With Dr. schedules what they are today he does all he can to spend the time that is necessary . He is a fine balance between doing it his way and what works for the patient.

March 24th, 2017

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Doctor is NEVER on time and has an excuse as to why he is late instead of apologizing. You wait forever to be seen, and he spends no time with you and very little investigation goes into your problem. He can be rude and condescending. His staff is unappreciated by him; therefore, they're not the happiest. I would never recommend anyone to his practice.

December 9th, 2016

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I had the unfortunate experience of dealing with Dr. Milejczyk on the phone for a professional manner. He was rude to me and I could hear him being rude to his staff in the background. He treated me with a total lack of respect and demanded things from me when I don't even work for him. He is absolutely unfit to be interacting with the public and I would not recommend going to him for any health-related services unless you enjoy being yelled at and treated with a total lack of respect.

November 18th, 2016

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Doesn't care about you. In the profession for money only in my opinion. Never, never on time and when you are seen he rushes through and looks extremely bored, you can tell by the far away look in his,eyes. Worst and unprofessional, in other words don't waste your time

September 14th, 2016

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

He is extremely condescending. I am a very educated professional but he spoke to me as if I am an idiot. His diagnosis also makes no sense and I am getting a second opinion.

October 31st, 2015

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Blew through our visit and never got back to me about anything.

January 8th, 2015

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Nice at first, but refused to follow up , staff and the Doctor are Rude and unprofessional. Did not want to confirm insurance

June 16th, 2014

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

The doctor and the office staff is extremely rude. I was extremely frustrated with my experience.

November 17th, 2013

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Extremely upset, needed a letter typed and signed by the doctor for medical clearance and he and his staff would not do it. Extremely rude staff and just plain lazy. I would suggest finding another doctor.

May 2nd, 2013

Advocate Condell Medical Center

801 S Milwaukee AveLibertyville, IL 60048

Tel: (847) 362-2900


Dr. Mariusz Milejczyk, MD	Dr. Robert Saqueton, MD	Dr. Vanessa Sohn, MD	Dr. Firas Aubeid, MD, MBA, FACP
Internal Medicine	Internal Medicine	Internal Medicine	Internal Medicine
	Accepts New Patients	Accepts New Patients	Accepts New Patients
3.3 (35 Ratings)	5 (2 Ratings)	5 (2 Ratings)	5 (1 Rating)
36 Years of Experience		14 Years of Experience	19 Years of Experience
No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option	Virtual Visit Available
Speaks Polish, Spanish	Speaks Spanish, English	Speaks English	Speaks English
Libertyville , IL	Skokie , IL	Harwood Heights , IL	NEW LENOX , IL
Med School: Medical University Of Bialystok		Med School: University Of Illinois At Chicago College Of Medicine	Med School: University Of Aleppo Faculty Of Medicine
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Internal Medicine

Check-up
Heartburn
Immunization
Physical
Vaccination
Weight Loss

MEDICAL LICENSE

Medical Doctor, Illinois, 2026, Active

EDUCATION & TRAINING

Residency

Sinai Grace Hospital

Medical School

Medical University Of BialystokGraduated in 1990

Dr. David F Saldanha, MD
Vascular & Interventional Radiology
19 Years Exp | Rockford, IL
(7)
Dr. Juanita Mora, MD
Allergy & Immunology
23 Years Exp | Chicago, IL
(5)
Dr. Elton Mustafaraj, DO
Diagnostic Radiology
14 Years Exp | Burlington, WI
(0)
Dr. Neelima Divakaran, MD
Hospital Medicine
22 Years Exp | Evanston, IL
(0)
Dr. Douglas Jackson, MD
Emergency Medicine
49 Years Exp | ELGIN, IL
(2)
Dr. Mary Patricia Gallagher Rhodes, MD
Hospice & Palliative Medicine
17 Years Exp | Evanston, IL
(2)
Dr. Aaron Stachowiak, MD
Physical Medicine & Rehabilitation
22 Years Exp | Maywood, IL
(2)
Dr. Edward Joseph Gurza, MD
Hospital Medicine
54 Years Exp | Maywood, IL
(1)
Dr. Mary Ellen Acree, MD
Infectious Disease
17 Years Exp | Evanston, IL
(2)
Dr. George B Beranek, MD
Emergency Medicine
41 Years Exp | Rockford, IL
(0)

Where is Dr. Mariusz Milejczyk's office located?: Dr. Mariusz Milejczyk's office is located at 801 S Milwaukee Ave, Libertyville, IL, 60048.
Does Dr. Mariusz Milejczyk accept virtual/telehealth appointments?: Dr. Mariusz Milejczyk has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Mariusz Milejczyk speak?: Dr. Mariusz Milejczyk speaks Polish and Spanish.
How can I make an appointment with Dr. Mariusz Milejczyk?: You can find contact information for Dr. Mariusz Milejczyk here on Vitals.
Does Dr. Mariusz Milejczyk accept my insurance?: You can see the insurance plans that Dr. Mariusz Milejczyk accepts on their Vitals profile.

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.

Copyright © 2026 Vitals Consumer Services, LLC. US Patent No. 8, 694, 441. All Rights Reserved.
As more fully set forth in this website's terms of use . (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. Vitals Consumer Services, LLC ("Vitals"). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) Vitals has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website.