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Dr. Marc Posner, MD

Dr. Marc Posner, MD

Radiation Oncology*
25+ years of experience

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.

4.5 Star Rating
Based on 8 reviews 4.5 Star Rating (8 reviews)

Practice

1475 E Belvidere Rd Ste 185 Grayslake, IL 60030
Telehealth available

Make an Appointment

(847) 582-2134

Hospital Highlight

Dr. Posner is affiliated with Northwestern Medicine Lake Forest Hospital Lake Forest, a highly rated hospital.

At a Glance

  • Area of Expertise
    Dr. Posner specializes in the area of Radiation Oncology. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ • See hospitals
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Dr. Posner's Reviews

Likelihood to recommend Dr. Posner

4.5
8 ratings, 3 with a written review
5 star
88%
88%
4 star
0%
0%
3 star
0%
0%
2 star
0%
0%
1 star
13%
13%

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Dr. Posner was understanding and empathetic when I first met with him. He knew I was lost in a sea of prostate cancer treatment options and gave me great perspectives and information. His recommendation for IMRT made sense and I elected to become his patient. I've completed my treatment now and am hopeful for the most positive results. Dr. Posner's outlook has helped me skirt negative thoughts and worries. If you are seeking smart advice, I recommend Dr. Posner.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Elmhurst, IL – Oct 01, 2017
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I ended up with second degree burns . Very painful. NOt as expected. What could he prescribe for the pain and the open, oozing sores? "Nothing-- maybe something on the internet. ". After suffering on, finally contacted my dermatologist, primary physician , and the internet company. He actually called the dermatologist and yelled at him for prescribing an ointment and treatment for serious burns. Had Wound Care and a fortune in treatments for the raw skin. Nobody should go thru that.
What went well
  • Office environment
  • Staff friendliness
  • Wait times
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
Helpful
Eagle, WI – Jun 26, 2017
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Dr Posner is a credit the medical profession. He is intelligent, compassionate, individual. He takes time to explain procedures or any questions you may have. He doesn't rush you and rush you out. He should be cloned. He's one of the best doctors I've ever met.
What went well
No results
What could be improved
No results
1 other person found this helpful
Helpful
Judith western in Lake Villa, IL – Jan 05, 2017
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Leave a review

How was your experience with Dr. Posner?

Know Before You Go

About Me

Watch Dr. Posner's Video

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, 2000

  • Weiss Hosp-u Chicago|weiss Hospital University Chicago

    Internship Hospital, 1996

  • Harvard Medical School

    Medical School, 1995
American Board of Medical Specialties®
American Board of Radiology®
- 
Radiation Oncology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check

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Locations

Practice

Pavilion A1475 E Belvidere Rd Ste 185 Grayslake, IL 60030
1

Affiliated Hospitals

  • Northwestern Medicine Lake Forest Hospital

    1000 N Westmoreland Rd
    Lake Forest, IL 60045
    Recipient of 13
    hospital awards

    America'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

    Patient 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 awards

    How patients felt about the care they received at this hospital.

    88%
    Patients said they were given information about recovering at home

    4% higher than the national average

    80%
    Patients said that doctors always listened to them and explained things well

    4% higher than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality