Measles Information

Education

Medical Education:: MD, Rush University Medical College - 2017
Residency:: McGaw Medical Center of Northwestern University - 2020

Board Certifications

American Board of Internal Medicine - Internal Medicine (Certified)

Practice Groups and Affiliations

Medical Group:: Northwestern Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Catherine Gratz Griffin Lake Forest Hospital

Ratings and Reviews

At Northwestern Medicine, our patient’s feedback is important to us. While different care providers have their own unique strengths, we strive to be as transparent as possible with our quality of care.

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Overall Rating

5.0

5.0

2049 Ratings

Reviews from Patients

85 Reviews

Reviews from Patients

85 Reviews

April 23, 2025

5.0

She takes the time to listen to her patients and shows a lot of care. She is very attentive.

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April 20, 2025

5.0

Dr Kosirog is most thorough and listens.

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April 19, 2025

5.0

Dr Kosirog is personable and always smiling. Even though she sees so many patients, she still pays attention to me and I don't feel rushed out.

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April 15, 2025

5.0

great doctor takes tme with you and discussed eason for everything

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April 15, 2025

5.0

Dr Kosirog remembers things that were going on at previous visits and she cares about you and your care

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April 09, 2025

5.0

She's extremely knowledgeable and takes the time to explain and investigate issues.

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April 06, 2025

5.0

She remembers a lot of details (and keeps great notes) so I know I'm benefitting from having a long-standing relationship with her. I came in with a lot of questions and she was able to answer all of them using specific facts about me, not just standard answers.

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March 31, 2025

5.0

She's the best! She listens. She's informed she cares. She includes me and I have great confidence in her.

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March 30, 2025

5.0

Dr Kosirog is always available to me. She is well informed, articulate, n interested in me. She asks numerous questions covering a myriad of health conditions. Her explanations n advice r excellent. She takes the time to listen carefully n willing to work with me on improving my health. She also is pro-active about following up with me. I trust her completely n feel blessed to hav her as my physician.

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March 25, 2025

5.0

Dr kosirog is very knowledgeable and caring! She listens to every word you tell her! One of the best Drs I have and I'm 79 have a lot of Drs I see

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March 22, 2025

5.0

Always helpful, thorough, and informative. She's a great doctor!

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March 19, 2025

5.0

Thorough, consistent, reasonable and encouraging

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March 18, 2025

5.0

She is extraordinary!

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March 17, 2025

5.0

She is a wonderful doctor who is easy to talk with and shows genuine concern about my conditions. I never feel rushed and she thoroughly explains everything. I would highly recommend her as an highly competent personal care physician.

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March 17, 2025

5.0

She takes the time to listen to my questions and is very thorough. I feel that she allows me to be engaged in my own care instead of talking at me.

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March 15, 2025

5.0

Incredible Doctor!

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March 13, 2025

5.0

Dr. Megan Kosirog is pleasant, energetic, professional and friendly. You know she's taken time to review your chart prior to your visit. She explains things carefully to ensure you understand one thing before moving on to the next. She's a "no pressure" doctor who listens and understands sometimes patients need a little time to think before deciding their next course of treatment and helps you to prioritize what needs to be done "sooner rather than later" but gives you a time frame so "later" doesn't become indefinitely. All this to say, Dr. Kosirog's a very fine, kind hearted professional whose care I appreciate.

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March 10, 2025

5.0

Respectful, prompt, easy to talk to, does not rush through the appointment and listens to any concerns

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March 04, 2025

5.0

She really cares

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March 04, 2025

5.0

Dr Kosirog has a very friendly demeanor. She is very thorough in her exam and precisely answered all my questions.

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February 27, 2025

5.0

Thoughtful, kind, thorough, smart!!!

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February 26, 2025

5.0

Dr. Kosirog is pleasant to be around. Her professionalism doesn't over shadow her patient and friendly disposition. She takes the time to answer any and all questions.

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February 25, 2025

5.0

Kind, prompt, thoughtful and caring. Always on top of my personal priorities.

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February 21, 2025

5.0

She listens. She talks. all way before she types into the computer. She cares for her patients and goes the extra mile. It's a shame she works at Northwestern.

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February 17, 2025

5.0

Very personable and attentive

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February 13, 2025

5.0

Dr. Kosirog is extremely thorough and makes you know she cares.

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February 12, 2025

5.0

She has wonderful bedside matters. She has always been so welcoming at each of my appointments. Extremely approachable. She takes the time to listen, answers my questions and never rushes me. I feel lucky to have found her as my PCP.

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February 06, 2025

5.0

1 easy to speak to 2 gives me the time I need to discuss the issues 3 very knowledgeable

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January 27, 2025

5.0

She listens well, provides great information and a detailed plan of how my concerns will be addressed.

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January 20, 2025

5.0

You can tell she cares about her patients.

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January 14, 2025

5.0

She took her time with me, addressed my concerns, followed up quickly with lab results

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January 13, 2025

5.0

Makes time to answer my questions and understand my concerns

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December 31, 2024

5.0

I love Dr. Kosirog. She listens and extremely understands my health issues as well as my concerns. She goes extra miles to work with my other specialists to provide me with more detail, and even get the adjusted dosages for me. She also reached out to a endo specialist so that I could get an urgent appointment with her . She's the best primary doctor I have ever had. Thank you Dr Kosirog and thank you Northwestern.

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December 31, 2024

5.0

She is very thorough, professional, personable, caring, knowledgeable and helpful.

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December 16, 2024

5.0

caring

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December 15, 2024

5.0

She took time to go over any medical and personal issues I had. I didn't feel rushed .

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December 14, 2024

5.0

She is very supportive and supports my concerns.

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December 12, 2024

5.0

Very caring and listens well. Doesn't judge and takes her time

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December 11, 2024

5.0

She is an outstanding doctor- very professional, efficient, and caring.

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December 09, 2024

5.0

Dr. Kosirog is a consummate professional. She is an expert in her field and is providing me with quality care. She is also patient, courteous, and encouraging. Dr. Kosirog provides me with my options and includes me in my care plan. She is always on time for our appointments and does not rush me through the process.

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December 09, 2024

5.0

Dr. Kosirog is kind, patient, knowledgeable and explains medical concerns in easy to understand terms.

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December 03, 2024

5.0

Dr. Kosirog is FANTASTIC! INTELLIGENT. SMART. EXCELLENT PERSONALITY.

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December 02, 2024

5.0

Dr. Kosirog has a great bedside manner. She is attentive, validating and offers appropriate referrals when needed.

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November 25, 2024

5.0

Great physician, Great follow up on issues and gives patient choices to solve medical problems.

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November 21, 2024

5.0

efficient

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November 19, 2024

5.0

She is awesome!

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November 18, 2024

5.0

Very knowledgable

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November 14, 2024

5.0

Took the time to listen and explain. Covered all areas of concern and provided helpful reminders of proactive healthcare.

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November 05, 2024

5.0

She was very responsive to my concerns. She was knowledgeable and gave good information. She did not rush me and addressed all of my questions

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November 05, 2024

5.0

Always congenial. Willing to listen carefully.

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November 04, 2024

5.0

Dr. Kosirog is a wonderful doctor. She is the reason I am very happy with NM.

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October 31, 2024

5.0

She takes the time to listen to your concerns and has a dialogue with you about potential options.

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October 30, 2024

5.0

She is thorough

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October 23, 2024

5.0

She's an Angel on this earth.

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October 23, 2024

5.0

She is the best. She is thorough, doesn't rush you and is compassionate

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October 21, 2024

5.0

Thoughtful, smart, thorough! So appreciate her kindness.

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October 21, 2024

5.0

Dr Kosirog is very knowledgeable, has a great "bedside manner", and provides information that allows me to make health care decisions.

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October 16, 2024

5.0

Dr. Kosirog hears what her patients say, not just listening to them. She gives her patients her full attention. Nurse Carol, is amazing supporting Dr. Kosirog.

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October 16, 2024

5.0

She is always very responsive, available, knowledgeable, helpful, and supportive.

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October 15, 2024

5.0

She is knowagable, friendly and very easy to talk to.

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October 12, 2024

5.0

Dr. Kosirog is a wonderful physician and an awesome human being. She is helping me get my health on track...monitoring my hemoglobin and other blood levels, letting me know what I need to adjust to get on track, and encouraging me along the way! Patients need all of the aforementioned. Encouragement is key. Patients need to know they can accomplish their goals and Dr. Kosirog does that. I am very pleased to have Dr. Kosirog as my primary care physician.

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October 12, 2024

5.0

Dr Kosirog is a kind caring physician who listens carefully to any concern I have and is sincere in her opinions on things I need to do personally to improve my health. I have never felt rushed and trust her advice implicitly

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October 10, 2024

5.0

Excellent Doctor...very knowledgeable! Doesn't rush you and very sweet!

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October 09, 2024

5.0

She listens & persuades. She doesn't order me around.

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October 08, 2024

5.0

Excellent communication and comfort

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October 08, 2024

5.0

Dr. Kosirog is a very good listener and empathetic. She is very thorough and responsive.

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October 03, 2024

5.0

Megan does a great job

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October 02, 2024

5.0

Intelligent and competent provider who is interested in my well being

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September 28, 2024

5.0

Her staff is fantastic as well.

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September 26, 2024

5.0

She is very caring

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September 26, 2024

5.0

Love Dr. Kosirog! She's always a pleasure to talk to and has great bedside manners! She allows me to speak and listens without interruption, as well as offers to always help to find a solution and never rushes during my visit.

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September 26, 2024

5.0

Very nice and a great listener

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September 24, 2024

5.0

Dr Kosirog is kind, caring, positive & thorough. She asks questions & listens to everything with genuine interest. She is also readily available through telehealth if I ever have any issues.

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September 24, 2024

5.0

Outstanding human and physician!

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September 23, 2024

5.0

The office is very punctual and Dr.Kosirog is always very attentive and very concerned about her patients health and well being.

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September 23, 2024

5.0

The best primary physician I've ever had. Brilliant, kind and effective.

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September 21, 2024

5.0

Very professional

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September 17, 2024

5.0

Dr. Kosirog is truly interested in her patients' medical and mental wellbeing. She is thorough and diligent in resolving any issues that arise. She also communicates very well. I am very happy to have Dr. Kosirog leading my medical team.

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September 12, 2024

5.0

I really like Dr. Kosirog. She spends time to explain everything. Her judgment and knowledge seems excellent.

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September 10, 2024

5.0

Amazing Doctor and an amazing individual

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September 09, 2024

5.0

She is kind, thoughtful, patient, and empathetic

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September 07, 2024

5.0

She is knowledgeable and compassionate and a great doctor.

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September 03, 2024

5.0

She is an excellent doctor. Listens and wants the best for her patients.

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September 03, 2024

5.0

She's a great doctor and very understanding.

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September 02, 2024

5.0

Professional and personable

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Disclosures

Megan Catlin Kosirog, MD reported no external professional relationships for calendar year 2024.

External Professional Relationships

Pharmaceutical, device, and biotechnology companies frequently collaborate with basic scientists and physicians within an academic medical center to help advance science and improve patient care. These relationships are important in achieving scientific breakthroughs and in establishing the effectiveness and safety of promising new therapies. In order to assure objectivity in clinical research and patient care, the Northwestern University Feinberg School of Medicine (Feinberg), Northwestern Memorial HealthCare, Children's Hospital of Chicago Medical Center, and the Shirley Ryan AbilityLab have adopted integrity policies that require research and clinical faculty (in full-time, part-time, and unpaid/voluntary categories) to report compensated and uncompensated external industry relationships. Patients are encouraged to discuss these disclosures with their physician as well as to inquire as to how these relationships are overseen by Feinberg. To learn more about our Disclosure and Professional Integrity Policy, and the conflict of interest policies of our joint affiliate survey partners, please go to our Office for Regulatory Affairs Policies page.

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