See All Oncologists in Niles, IL
Dr. Leonard Klein, MD

Dr. Leonard Klein, MD

Age 70 Oncology M
(10) 10 reviews
Accepting New Patients


Dr. Leonard Klein, MD is a oncology specialist in Niles, IL. Dr. Klein completed a residency at Barnes - Jewish Hospital. He currently practices at Illinois Cancer Specialists and is affiliated with Advocate Lutheran General Hospital. He accepts multiple insurance plans. Dr. Klein is board certified in Hematology.


  • City Hope Natl Med Ctr, Fellowship Hospital — 1980
  • Barnes - Jewish Hospital, Residency Hospital — 1979
  • Parkland Memorial Hospital, Residency Hospital — 1978
  • Parkland Memorial Hospital, Internship Hospital — 1976
  • New York State U, School of Medicine - Buffalo, Medical School — 1975

Insurance Accepted

  • Aetna
  • Anthem
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • First Health (Coventry Health Care)
  • HAP Insurance
  • Humana
  • MultiPlan

* Please verify this information when scheduling an appointment.

Compare with other Oncology Specialists
Compare Dr. Klein with our nearby Oncology Specialists at Northwestern Memorial Hospital
These providers are on the medical staff of Northwestern Memorial Hospital
These providers are on the medical staff of Northwestern Memorial Hospital.


  1. Illinois Cancer Specialists

    1. 1
      Illinois Cancer Specilaists
      8915 W Golf Rd, Niles, IL 60714 Existing Patients: (847) 827-9060

Patient Satisfaction

Likelihood to recommend Dr. Klein
Based on 10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Leave a review

How likely are you to recommend Dr. Klein?

(Select your rating)
Dr. Leonard Klein has been my longtime physician. He is a compassionate, brilliant doctor, caring and trustworthy. Cancer is scary for sure but when you have one of the best Cancer Specialist, that's half the battle. I can be rest assured that he is always in my corner. Whether in the hospital or in his office, the care is superb.
Constance Montgomery — Apr 01, 2021
See more reviews on Healthgrades
Photo: Dr. Leonard Klein, MD
Dr. Leonard Klein, MD
  • Likelihood of recommending Dr. Klein to family and friends

Dr. Klein's Office & Staff

  • Ease of scheduling urgent appointments
  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Klein

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Spends appropriate amount of time with patients

Tell Us About Yourself

  • Your gender:
  • Your age group:
  • Number of office visits you've had in the last 2 years:

Finish Here

  • How would you like to confirm your survey information?
    Standard text messaging and data rates may apply.
Thank you for sharing your feedback about Dr. Leonard Klein, MD.

Frequently Asked Questions

Click here to compare with other Oncology Specialists.

Dr. Klein frequently treats Skeletal System Neoplasms.  

Find contact information here to make an appointment.

Hospital Affiliations

  • Advocate Lutheran General Hospital