Igor J. Koralnik, MD

4.3

123 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Neuroinfectious Disease

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Encephalitis
HIV Neurological Complications
Lyme Disease
Meningitis
Myelitis
Neurologic manifestations of COVID-19
Postherpetic Neuralgia
Progressive Multifocal Leukoencephalopathy

Education

Medical Education:: MD, University of Geneva Faculty of Medicine - 1987
Internship:: Beth Israel Deaconess Medical Center - 1997
Residency:: Brigham and Women's Hospital/Massachusetts General Hospital/Harvard Medical School - 1996

Media

Languages Spoken

French
German

Board Certifications

American Board of Psychiatry and Neurology/Neurology - Neurology (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:: 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

4.3

4.3

123 Ratings

Reviews from Patients

8 Reviews

Reviews from Patients

8 Reviews

February 11, 2026

5.0

Dr. Koralnik and his team are very thorough and explained every thing. He also has on his team, some that can test right away.

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February 08, 2026

5.0

His sympathy and positivity

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January 28, 2026

5.0

He was very thorough, asked great questions and listened.

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November 26, 2025

5.0

Experience

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October 08, 2025

5.0

He gave the impression that he is a eminence in his specialty.

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September 14, 2025

5.0

Doctor Koralnik provided excellent patient care. He was very thorough in his examination, openly provided his thoughts on my medical condition and excellent advice regarding the next steps to address my medical condition

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July 24, 2025

5.0

He had gone over the information we brought with us before seeing us. He was pleasant but to business of the reason we came to see him.

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July 21, 2025

5.0

He was very nice and listened to my concerns and I appreciate his care as well

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Disclosures

Industry Relationships

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

American Society for Clinical Investigation, Inc.
Biovie Inc.
Percheron Therapeutics Limited
Pfizer, Inc.
Teladoc, 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

UpToDate, Inc.

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

Could a Common Virus Be Linked to Parkinson’s Disease?

The HPgV connection.

When Did the Pandemic Start and End?

Looking back at the milestones of the COVID-19 pandemic.

Long COVID-19 Hits Young Adults Harder

Northwestern Medicine study shows that young adults have worse long COVID symptoms than older adults.

More HealthBeat Articles