Marc D. Posner, MD

Marc D. Posner, MD

5.0 
463 ratings  Read Reviews
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Primary Specialty

Radiation Oncology

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Practice Website

Practice Focus Areas

This medical professional has a particular interest or expertise in:

Education

Medical Education:
MD, Harvard Medical School - 1995
Internship:
University of Chicago - 1995
Residency:
University of California (San Francisco) - 2000

Board Certifications

  • American Board of Radiology/Radiation Oncology - Radiation Oncology (Certified)

Faculty Profile

Clinical Assistant Professor, Feinberg School of Medicine

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Practice Groups and Affiliations

Medical Group:
Northwestern Medical Group
On Medical Staff At:
Catherine Gratz Griffin Lake Forest Hospital
Grayslake Ambulatory Surgery Center

Ratings and Reviews

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Overall Rating

5.0
5.0 

463 Ratings

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Reviews from Patients

58 Reviews

Reviews from Patients

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58 Reviews

Disclosures

Marc D. Posner, MD reported no external professional relationships for calendar year 2025.

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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