Maciej S. Lesniak, MD

4.9

196 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Neurological Surgery

Secondary Specialty

Neurosurgical Oncology

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Benign Brain Tumor
Cavernous Malformation
Cerebral Aneurysm
Glioma
Malignant Brain Tumor
Pituitary Disorders
Skull Base Surgery
Vascular Malformation/Brain

Education

Medical Education:: MD, Johns Hopkins School of Medicine - 1996
Internship:: Johns Hopkins University - 1997
Residency:: Johns Hopkins University - 2003

Languages Spoken

German
Polish
Spanish

Board Certifications

American Board of Neurological Surgery - Neurological Surgery (Certified)

Faculty Profile

Professor, Feinberg School of Medicine

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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

Central DuPage Hospital

Delnor Hospital

Grayslake Ambulatory Surgery Center

Northwestern McHenry Huntley & Woodstock Hospitals

Northwestern Memorial 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

4.9

4.9

196 Ratings

Reviews from Patients

18 Reviews

Reviews from Patients

18 Reviews

February 27, 2026

5.0

Very pleased with the surgery process he recommended and feel very grateful for having him and his team doing the surgery.

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February 18, 2026

5.0

Dr . Lesniak is always very thorough with his explanations!

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February 18, 2026

5.0

He's very caring and truthful

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February 05, 2026

5.0

He was kind and spoke to us in a way that we could understand.

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January 29, 2026

5.0

Very intelligent.. very knowledgeable.. respectful out going person...

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January 21, 2026

5.0

Always a pleasure to see him. He is very nice and always give the best advice

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December 10, 2025

5.0

Dr. Lesniak is the best!!! He takes his time explaining things to me and answers all my questions. He's kind and has good bedside manner as well as very intelligent. I'm always looking forward in seeing him for our follow ups because he just gives me hope and positive vibes!!

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October 20, 2025

5.0

Very personable and friendly. He was very upfront, helpful and knowledgeable. He said he didn't think a neurosurgeon was what I needed and immediately made arrangements for me to see an oncologist, within a couple of hours from I was seen by him.

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October 02, 2025

5.0

Competent, thorough and pays attention to personal & medical details Limited appointment availability is the only downside

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October 01, 2025

5.0

Knowledgable and presents information that I could easily understand.

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September 26, 2025

5.0

Pleasant, down to earth answers to questions, Does not avoid tough questions. Calls the issues as he sees them.

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September 14, 2025

5.0

Great.Dictor care about his patients and listen to them with an open mind

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September 11, 2025

5.0

Dr Lesniak is always open, discussing my condition with clarity and care

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September 10, 2025

5.0

He explained everything to me clearly and kindly and made sure I understood what he was saying. He didn't rush me and took time to answer all of my questions. He had a warm and compassionate manner.

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July 03, 2025

5.0

Dr. Lesniak performed 2 craniotomies on me. The surguries were successful. My recovery was quick and I've had virtually no issues.

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May 28, 2025

5.0

Excellent doctor. Very knowledgeable and made me confident and hopeful regarding my current situation. Would definitely recommend him.

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May 18, 2025

5.0

The ability to see how confident that my doctor was and letting me know that everything is OK right now and nothing that is at a major concern. Help me be relieved.

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May 04, 2025

5.0

best doctor

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Disclosures

Industry Relationships

Ownership or Investment Interest

Faculty member and/or their immediate family have an ownership or investment interest in the following companies

Calidi Biotherapeutics, Inc.
Nanovortex, LLC
Sera Biopharma

Consulting

Faculty member and/or their immediate family have engaged in activities such as speaking, advising, consulting, or providing educational programs for the following companies or other entities

Calidi Biotherapeutics, Inc.

Royalties

Faculty member and/or their immediate family have the right to receive payments or may receive future financial benefits for inventions or discoveries related to the following companies or other entities

Calidi Biotherapeutics, Inc.

Board of Directors

Faculty member and/or their immediate family served in a fiduciary capacity, such as a board member/director, officer, or trustee, for the following companies or other entities

Nanovortex, LLC

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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HealthBeat

The Scientists Behind Better Care

Science and research informs the care provided by Northwestern Medicine physicians, many of whom are scientists themselves. Meet four.

More HealthBeat Articles