Mary A. Merlo, APRN

Mary A. Merlo, APRN

Certified Nurse Practitioner

4.8 
1262 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medicine Regional Medical Group

Primary Specialty

Family Medicine

Secondary Specialty

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

  • Nurse Practitioner

Education

Professional Education:
MSN, Olivet Nazarene University School of Life and Health Sciences - 2013

Certifications and Licensures

  • American Nurses Credentialing Center - Nurse Practitioner-Family (Certified)

Practice Groups and Affiliations

Medical Group:
Northwestern Medicine Regional 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

4.8
4.8 

1262 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

April 28, 2025

5.0

She's the best.

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April 28, 2025

5.0

She does not run in and run out of the office to get to the next patient. She NEVER compromises patient care for corporate financial gain, like many other people do.

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April 27, 2025

5.0

Same as above, caring, listens and overall she takes her time

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April 25, 2025

5.0

Dr. Mellow when the distance to find out what's going on with my breathing situation.

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April 25, 2025

5.0

Excellent primary care. Feel heard, seen. Very engaging and informative. I feel very fortunate to have her on my side.

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April 23, 2025

5.0

She always listens to my needs

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April 18, 2025

5.0

She is the best!!!!!

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April 17, 2025

5.0

Great bedside manner

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April 12, 2025

5.0

She tells it like it is. Not afraid to scold me when I need it. But doesn't make you feel bad about yourself

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April 11, 2025

5.0

Mary Ann Merlo has been my Doctor for many years. She is very thorough and listens to what you have to say. She is very compassionate and doesn't treat you like a number. Yes I would recommend her very much.

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April 02, 2025

5.0

Thorough efficient and friendly

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April 02, 2025

5.0

Mary A. Merlo CNP is great. She is so easy to talk to, professional, and definitely tries to help with whatever the reason I am there for. Thanks!

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March 31, 2025

5.0

She takes time with you as a patient. Nowadays appointment with medical apts. they are so rush rush. Not Mary, she actually took the time to explain things thoroughly and answer throughly any questions that I had.

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March 30, 2025

5.0

Caring and thorough, listened to our concerns

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March 28, 2025

4.0

Very personable

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March 27, 2025

5.0

She listens well.

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March 26, 2025

5.0

She is just so remarkable through, she listens and I have 200 plus % in Mary Ann Merlo

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March 26, 2025

5.0

She's very understanding and listens to everything you have to say and she very concerned about your issues

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March 26, 2025

5.0

She listens to my problems and tries to help me get them taken care of . She doesn't just send me off to someone else not caring. She really seems to care and want to help.

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March 25, 2025

5.0

Friendly and spends time with you and listens

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March 25, 2025

5.0

Mary Ann merlo is so friendly..I felt very comfortable being her pt..she was very thorough with answering my questions and explaining things.

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March 24, 2025

5.0

Mary actually listens and helps come up with treatment options that are doable. I don't feel like she's rushing through a 15 minute time slot.

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March 23, 2025

4.0

Very pleasant and caring demeanor.

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March 18, 2025

5.0

Mary Ann Merlo is the best at what she does. Smart, caring, compassionate.

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March 17, 2025

5.0

I'm a new patient & Mary took the time to listen to me & establish the care I needed.

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March 12, 2025

5.0

She's very efficient at her job, organized & well educated.

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March 07, 2025

5.0

She's very personable and her demeanor makes you very comfortable. She's easy to talk to about your concerns and you leave with all your questions answered.

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March 06, 2025

5.0

Very thorough

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March 06, 2025

5.0

I think Maryann is wonderful. She takes her time listening to everything you have to say.

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March 03, 2025

5.0

Very nice and professional

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February 27, 2025

5.0

Great listener Takes time to explain things Great bedside manner She is awesome

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February 26, 2025

5.0

Mary really listened to my concerns and was extremely helpful. She is awesome!

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February 26, 2025

5.0

She is very sweet and cares about my health

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February 26, 2025

5.0

Makes you feel like she sincerely cares about you..

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February 24, 2025

4.0

She was very knowledgeable about our questions and concerns. Made us aware of things we hadn't thought of.

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February 24, 2025

5.0

Mary Ann Merlo is excellent, kind , compassionate and listens to all my concerns. I'm usually in and out of my appointment quickly.

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February 24, 2025

5.0

She's was understanding of the things I explained and gave me referral to the cardiologist

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February 23, 2025

5.0

Dr Merlo was very nice and helpful with my health needs.

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February 17, 2025

5.0

I like her and she's a good listener and is thorough.

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February 13, 2025

5.0

Outstanding professional manner Speaks coherently to all your concerns, never too busy to have a health discussion and answer any and all questions

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February 08, 2025

5.0

She took time to here me

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February 08, 2025

5.0

Love her great

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February 06, 2025

5.0

I'm not just a chart or number!

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January 30, 2025

5.0

I already did

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January 29, 2025

5.0

She took the time and listened to my concerns

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January 27, 2025

5.0

Mary Ann was attentive and extremely friendly and made me feel at ease as she always does

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January 27, 2025

5.0

Mary Ann really took her time to thoroughly examine me spend quality time and she was a very friendly individual. I would highly recommend her.

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January 18, 2025

5.0

She is a good listener and cares about her patients.

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January 17, 2025

5.0

Perfect

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January 17, 2025

5.0

She makes you feel heard. Always very respectful and professional

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January 16, 2025

5.0

Listens to your concerns and answers your questions so you can understand

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January 16, 2025

5.0

Mary Merlo's genuine interest in my care.

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January 14, 2025

5.0

Mary Ann is a wonderful provider

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January 11, 2025

4.0

She listened well and paid special care to my unique circumstances.

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January 11, 2025

5.0

Mary A Merlo was extremely helpful and prepared. She listened, reviewed health history and evaluated appropriately under the circumstances. Mary A. Merlo was very patient and understanding. She is personal and professional. I am thankful for her help last night.

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January 11, 2025

5.0

Knowledgeable and compassionate! Quick and easy to understand. Clear instructions and reassuring!

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January 09, 2025

5.0

Good conscientious care.

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January 08, 2025

5.0

Was very informative and friendly

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January 08, 2025

5.0

She was just great!!!

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January 06, 2025

5.0

Awesome Dr. awesome card, very thorough care!

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January 04, 2025

5.0

She was informative and empathetic

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December 24, 2024

5.0

Friendly anc very dedicated to her patients.

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December 23, 2024

5.0

Mary Ann is fantastic!

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December 20, 2024

5.0

On time, thorough & extremely nice & friendly.

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December 20, 2024

5.0

Friendly and thorough

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December 14, 2024

5.0

She is knowledgeable and kind

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December 09, 2024

5.0

She answers all your questions and is easy to understand. Mary Ann Merlo CNP is easy to talk with and shows concern for your well-being.

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December 06, 2024

5.0

She is awesome..makes me feel so important!

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December 05, 2024

5.0

She is very professional while at the same time listening to and addressing any of my health concerns. She is also very patient and accommodating.

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December 04, 2024

5.0

She listens to concerns, is very personable. It was a pleasure to have her for my care

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December 04, 2024

5.0

Definitely cares about the patients

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December 02, 2024

5.0

Very good doctor.

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November 30, 2024

5.0

Wonderful customer service, Doctor, nurses, all staff are caring and understanding

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November 29, 2024

5.0

awesome, caring and such a delight

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November 29, 2024

5.0

Excellent Dr. very thorough

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November 27, 2024

5.0

Kind, caring and very thorough care.

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November 21, 2024

5.0

She's very attentive, professional and knowledgeable

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November 21, 2024

5.0

Very knowledgeable and friendly.

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November 21, 2024

5.0

She is very Knowledgeable, Caring and goes out of her way to assist me with my healthcare needs

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November 21, 2024

5.0

She listen and address all my concerns and was very honest and I love a doctor with a sense of humor because let be honest I am a nervous wreck when I go to doctor office or hospitals. Thanks Doc and also thank you to the lady that drew my blood on the first try and so professional.

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November 19, 2024

5.0

Mary Ann Merlo is fabulous! She is attentive, kind, professional & courteous.

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November 19, 2024

5.0

Great doctor

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November 18, 2024

5.0

Very thorough and nice.

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November 18, 2024

5.0

She is very good at listening to concerns and helping come up with a plan to address them. I never feel rushed when I have an appointment with her and always feel heard.

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November 15, 2024

5.0

She was so sweet and personable !!

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November 14, 2024

5.0

I truly trust her medical expertise. I wish more doctors were like her.

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November 14, 2024

5.0

Very knowledgeable, personable and I didn't feel rushed through. She also very precise about things we spoke about.

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November 12, 2024

5.0

She's the best!

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November 11, 2024

5.0

Very proficient and she diagnosed my condition completely

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November 09, 2024

5.0

Mary had a friendly and knowledgeable demeanor. She was easy to talk to.

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November 09, 2024

5.0

Understanding, concerned, professional

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November 07, 2024

5.0

She showed concern

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November 07, 2024

5.0

Very caring and considerate CNP with her patients. Her dedication to her patients is never ending.

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November 04, 2024

5.0

She so Amazing she really get to bother of what ever going on with your body it's just hard get in to see her soon you need to

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November 02, 2024

5.0

She was very pleasant, made me feel comfortable and concerned I feel good about making her my primary doctor

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October 29, 2024

5.0

Mary is very kind and compassionate about what she does. Better than any doctor I've seen.

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October 29, 2024

5.0

Very knowledgeable and shows utmost concern to deal with medical issues

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October 29, 2024

5.0

Knowledgeable , friendly, approachable, shows utmost concern on medical issues.

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October 28, 2024

5.0

she really listens to a patient and always makes them feel comfortable

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October 26, 2024

5.0

She takes the time with you and very informative

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Disclosures

Mary A. Merlo, 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.