Dr. Marc Posner, MD
Dr. Marc Posner, MD is a radiation oncologist in Grayslake, IL and has over 25 years of experience in the medical field. He graduated from HARVARD Medical School in 1995. He is affiliated with Northwestern Medicine Lake Forest Hospital. He is accepting new patients and telehealth appointments.
Practice
1475 E Belvidere Rd Ste 185 Grayslake, IL 60030Make an Appointment
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Dr. Posner's Reviews
Likelihood to recommend Dr. Posner
4.5
| 5 Star | 88% | 88% |
| 4 Star | 0% | 0% |
| 3 Star | 0% | 0% |
| 2 Star | 0% | 0% |
| 1 Star | 13% | 13% |
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How was your experience with Dr. Posner?Overall Patient Satisfaction
Likelihood of recommending Dr. Posner to family and friends is 4.5 out of 5
About Me
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care philosophy
I treat all my patients as if they were my own family.Radiation Oncology
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
University Of California Medical Center, San Francisco|university Of Chicago
Residency Hospital, 2000Weiss Hosp-u Chicago|weiss Hospital University Chicago
Internship Hospital, 1996Harvard Medical School
Medical School, 1995
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Learn more about medical license public record checkFocus on Breast Cancer
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Locations
Practice
Affiliated Hospitals
- Recipient of 13
hospital awardsAmerica's 250 Best Hospitals Award™ (2025, 2024, 2023)
Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications
View all awardsPatient Safety Excellence Award™ (2025, 2024)
Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications
View all patient feedbackHow patients felt about the care they received at this hospital.
88%Patients said they were given information about recovering at home4% higher than the national average
80%Patients said that doctors always listened to them and explained things well4% higher than the national average
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Compare Dr. Posner with our nearby Radiation Oncologists at Mayo.
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