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Mary Ellen Maher, APRN

Clinical Nurse Specialist

4.9

697 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Neurosurgical Oncology

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Clinical Nurse Specialist

Education

Professional Education:: MSN, Loyola University Marcella Niehoff School of Nursing - 1992

Certifications and Licensures

American Association of Neuroscience Nurses - Registered Nurse-Neuroscience (Certified)

Practice Groups and Affiliations

Medical Group:: Northwestern Medical Group
Alignment Category:: Northwestern Medicine Physician Network

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

4.9

4.9

697 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

February 26, 2026

5.0

Mary Ellen is amazing!!

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February 26, 2026

5.0

An extremely dedicated care giver.

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February 26, 2026

5.0

Very kind

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February 24, 2026

5.0

Friendly Communicates well. Good listener

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February 23, 2026

5.0

She listens.

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February 23, 2026

5.0

Very professional. Great personality.

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February 23, 2026

5.0

She is wonnderful and caring

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February 20, 2026

5.0

Mary always makes me feel seen and heard. She makes sure that I understand my condition and explains everything and answers all my questions.

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February 20, 2026

5.0

She takes time with you, helps you to understand your medical problem before you leave. Great bedside manor

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February 20, 2026

5.0

She is smart and has a great sense of humor.

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February 17, 2026

5.0

She listens and explains clearly the plan for surveillance.

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February 12, 2026

5.0

Very personable and knowledgeable. Always takesvtime to listen and explain everything!!

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February 12, 2026

5.0

Fun personality

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February 09, 2026

5.0

Mary Ellen is knowledgeable, kind, responsive, respectful, and conveys information/answers questions in understandable (i.e., not just medical jargon) responses.

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February 05, 2026

5.0

Spent enough time and answered my questions

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January 31, 2026

5.0

Personable, doesn't rush you out the door

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January 30, 2026

5.0

great sense of humor; articulate; knowledgeable and understanding..very helpful.

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January 22, 2026

5.0

She explains exactly what I must know to help me navigate myself better and makes sure I understand to follow up and if there are changes call her immediately. She is upbeat and encouraging. A nice bedside manner.

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January 22, 2026

5.0

She sets us at ease, explain treatment course and helps us to make educated decisions on our healthcare.

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January 15, 2026

5.0

Always trying to help you.

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January 15, 2026

4.0

Would prefer to see the neurosurgeon, however she is able to answer all of my questions.

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January 15, 2026

5.0

She is very informative, very calm and makes me feel extremely comfortable

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January 13, 2026

5.0

This was very easy she right off the bat put me at ease. Answered all my questions.

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January 09, 2026

5.0

Always professional and personnel.

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January 08, 2026

5.0

Mary Ellen is very professional and an awesome person!!!

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January 06, 2026

5.0

She is wonderful!!!!

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January 02, 2026

5.0

Mary Ellen is great...so compassionate, so caring, so knowledgeable. She takes time to answer all of my questions. I feel fortunate to have her as my healthcare provider.

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December 31, 2025

5.0

She is proffessional, personable and informative.

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December 29, 2025

5.0

Comfortable and confident with the care I receive.

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December 27, 2025

5.0

Very caring an knows her stuff

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December 23, 2025

5.0

Mary Ellen is very professional as well as personable.

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December 18, 2025

5.0

She was very punctual and asked all my questions.

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December 15, 2025

5.0

Caring, very competent. Everything she does gets an A+. Highly recommend her and the doctors she works with.

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December 15, 2025

5.0

Mary Ellen is wonderfully kind & compassionate!! My son loves her extra attention to his concerns. He is so happy to have learned he does not need surgery yet.

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December 12, 2025

5.0

She is a great communicator always responsive!

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December 09, 2025

5.0

Mary Ellen is very knowledgable and spends time with each patient. She answers questions and addresses concerns.

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December 05, 2025

5.0

Very kind and considerate.

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December 05, 2025

5.0

She is very pleasant to talk with and she is also very friendly.

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December 04, 2025

5.0

Very kind, caring, and thorough

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December 02, 2025

5.0

She is compassionate, thorough and knowledgeable!

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November 28, 2025

5.0

She listens and cares about you and wants you to be a part of your medical care.

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November 20, 2025

5.0

Very supportive! Any questions I have, they want to know regarding health and lifestyle. If there is something wrong or just something that may be bothersome; they want to know... The care that is being offered is fantastic. Monitoring my progress is exceptional.

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November 06, 2025

5.0

I love Mary Ellen; I've known her for 12 years now since my dramatic surgery in 2013. She helped me every year (along with psychiatrist Dr. [full name]) to recover my thoughts, my artistry (I draw and paint) snd my self respect.

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November 01, 2025

5.0

See above explanation- Mary Ellen is extremely hard working for her patients.

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October 27, 2025

5.0

Kind, patient and able to answer all questions. Never left feeling rushed.

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October 24, 2025

5.0

She is quite competent and knowledgeable

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October 18, 2025

5.0

Easy to talk to, very informative

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October 16, 2025

5.0

She was patient, took her time, ensured my questions were answered, will personal respond to follow up.

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October 13, 2025

5.0

Mary Ellen Maher is always so comforting to meet with. I still meet with her annually and fortunately have had no issues. It is good knowing that the help is there if I need it.

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October 10, 2025

5.0

she takes the time to really listen to me and addresses all my questions and concerns.

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October 06, 2025

5.0

High level of expertise and caring

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October 02, 2025

4.0

She is so professional and she knows what she's talking about. She listens to me every time I talk and she's always very supportive.

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September 30, 2025

5.0

good follow up

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September 29, 2025

5.0

Very knowledgeable and spends time with the patient answering all questions and concerns.

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September 23, 2025

5.0

Thorough, efficient, caring, explained everything clearly!

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September 16, 2025

5.0

Personable and professional

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September 16, 2025

5.0

she is great and medically we go back 22 years

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September 15, 2025

5.0

Mary Ellen Maher listens and provides very helpful guidance.

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September 15, 2025

5.0

She is so nice and she takes the time to explain everything to you . She never rushes you through an appointment and she has a lot of knowledge and explains everything so I can understand .

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September 15, 2025

5.0

She is the best! Very knowledgeable, compassionate, and understanding.

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September 14, 2025

5.0

Any great words to say are well deserved. I'm so grateful to be in the hands of her expertise.

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September 13, 2025

5.0

Easy to communicate with and believes in preventative medicine. The brain controls many body parts. She helps with referrals to see the right specialist for your cause

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September 11, 2025

5.0

I like her

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September 11, 2025

5.0

She is wonderful and knowledgeable. Great office and helpful

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August 30, 2025

5.0

Excellent at her job and easy to work with

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August 26, 2025

5.0

Mary Maher CNS - Same opinion as Reason Number One

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August 21, 2025

5.0

She explains everthing found in the MRI. Where the growth is, the size of the growth, and how the team will keep track of it. I saw her August 21,2025 and she had me make an appointment for next year.

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August 18, 2025

5.0

Mary Ellen is great to work with, always answers my questions, helps keep me informed with my illness, and up to date on what we need to do moving forward.

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August 18, 2025

5.0

Excellent follow up

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August 11, 2025

5.0

She is very knowledgeable about patient care. Friendly, great personality can answer my questions in a professional way.

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August 11, 2025

5.0

Mary Ellen is a great listener and communicator. She explains my situation to my understanding and provides great feedback to my follow up questions. We've been through a lot and she keeps me informed and explains what to looks for.

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August 07, 2025

5.0

Informative thorough and knowledgeable and took the time to explain my test results.

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August 02, 2025

5.0

kind, knowledgeable and gentle

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July 31, 2025

5.0

Was thorough in answering all of my questions. Appreciated how direct and the way she explained what I needed to do to get back to being my best self again.

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July 31, 2025

5.0

She was knowledgeable and informative.

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July 30, 2025

5.0

She will listen to every detail you tell her.

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July 21, 2025

5.0

Very open and thorough

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July 20, 2025

5.0

Mary Ellen is extremely knowledge and personable and committed to the wellbeing of all of her patients. She always has a bright, upbeat attitude and provides explanations that are thorough, understandable and in perspective.

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July 17, 2025

5.0

She deserves it!

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July 16, 2025

5.0

A very caring person who performs her job with a great deal of knowledge and compassion.

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July 14, 2025

5.0

The excellent and consistent caring services given are greatly appreciated.

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July 12, 2025

5.0

competent; compassionate; direct and supportive

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July 03, 2025

5.0

She was very pleasant and answered all of my questions.

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July 01, 2025

5.0

Very good at explaining my condition and answering all my questions and concerns

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June 27, 2025

5.0

Pleasant easy to talk to

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June 23, 2025

5.0

She is amazing and always very prompt, straight forward and clear.

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June 21, 2025

5.0

Very caring and she explains everything in an easy to understand manner

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June 19, 2025

5.0

She is very caring and listens.

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June 09, 2025

5.0

She will help me get the proper diagnosis.

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June 03, 2025

5.0

She listens and took a comprehensive approach about my care post surgery and radiation.

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May 30, 2025

5.0

Empathetic

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May 30, 2025

5.0

Concise...relaxed...

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May 29, 2025

5.0

She was amazing at explaining everything! She was very knowledgeable and made my family and I feel like all of our concerns were acknowledged

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May 28, 2025

5.0

Caring , knowledgeable professionals

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May 22, 2025

5.0

Mary Ellen Maher is the consummate professional; she blends professionalism with enthusiasm and humor.

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May 20, 2025

5.0

Very helpful covers all details after recocery

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May 13, 2025

5.0

She very nice and friendly and explained everything to me

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May 08, 2025

5.0

She is kind, knowledgeable and on top of what needs to be done.

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May 06, 2025

5.0

Wonderful personality and knowledge

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May 05, 2025

5.0

Easy to talk to, good communication skills.

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Disclosures

Mary Ellen Maher, APRN 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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