of
LK

Leonard Klein JR, MD

Dr. Klein is a hematologist oncologist in the Niles area. He is affiliated with Northwest Community Hospital and Lutheran General Hospital.
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Conditions treated

Tap to see related services for each condition and more details about our calculations.

Top 25%
6.4k doctors
Top 15%
6.4k doctors
Top 5%
3.2k doctors
Dr. Klein saw more blood cancer patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
6.2k doctors
Top 15%
6.2k doctors
Top 5%
3.1k doctors
Dr. Klein saw more breast cancer patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
8.3k doctors
Top 15%
8.3k doctors
Top 5%
4.1k doctors
Dr. Klein saw more dehydration patients than 95% of similar doctors nationwide in 2014–2019. Learn more.
Top 25%
107 doctors
Top 15%
107 doctors
Top 5%
53 doctors
Dr. Klein saw graft-versus-host disease patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
1.4k doctors
Top 15%
1.4k doctors
Top 5%
706 doctors
Dr. Klein saw more rectal cancer patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
3.7k doctors
Top 15%
3.7k doctors
Top 5%
1.8k doctors
Dr. Klein saw more lymphoma patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
4.4k doctors
Top 15%
4.4k doctors
Top 5%
2.2k doctors
Dr. Klein saw more colon cancer patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
614 doctors
Top 15%
614 doctors
Top 5%
306 doctors
Dr. Klein saw more acute myeloid leukemia (AML) patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
2.2k doctors
Top 15%
2.2k doctors
Top 5%
1.1k doctors
Dr. Klein saw more leukemia patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
1.2k doctors
Top 15%
1.2k doctors
Top 5%
600 doctors
Dr. Klein saw more multiple myeloma patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
409 doctors
Top 15%
410 doctors
Top 5%
204 doctors
Dr. Klein saw anal cancer patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
26k doctors
Top 15%
26k doctors
Top 5%
13k doctors
Dr. Klein saw more anemia patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
5.0k doctors
Top 15%
5.0k doctors
Top 5%
2.5k doctors
Dr. Klein saw more lung cancer patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
34k doctors
Top 15%
34k doctors
Top 5%
17k doctors
Dr. Klein saw digestive tract conditions patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
38k doctors
Top 15%
38k doctors
Top 5%
19k doctors
Dr. Klein saw cardiovascular disease (CVD) patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
478 doctors
Top 15%
478 doctors
Top 5%
238 doctors
Dr. Klein saw acute lymphocytic leukemia (ALL) patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
5.1k doctors
Top 15%
5.1k doctors
Top 5%
2.6k doctors
Dr. Klein saw carcinoma patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
8.7k doctors
Top 15%
8.7k doctors
Top 5%
4.3k doctors
Dr. Klein saw osteoporosis patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
9.4k doctors
Top 15%
9.4k doctors
Top 5%
4.7k doctors
Dr. Klein saw sepsis patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
269 doctors
Top 15%
269 doctors
Top 5%
134 doctors
Dr. Klein saw testicular cancer patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
1.9k doctors
Top 15%
1.9k doctors
Top 5%
936 doctors
Dr. Klein saw immunodeficiency patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
6.9k doctors
Top 15%
6.9k doctors
Top 5%
3.5k doctors
Dr. Klein saw malnutrition patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
36k doctors
Top 15%
36k doctors
Top 5%
18k doctors
Dr. Klein saw vascular disease patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
276 doctors
Top 15%
276 doctors
Top 5%
138 doctors
Dr. Klein saw chronic myelogenous leukemia (CML) patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
12k doctors
Top 15%
12k doctors
Top 5%
5.9k doctors
Dr. Klein saw kidney failure patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
11k doctors
Top 15%
11k doctors
Top 5%
5.3k doctors
Dr. Klein saw acute renal failure patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
4.6k doctors
Top 15%
4.6k doctors
Top 5%
2.3k doctors
Dr. Klein saw prostate cancer patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
1.5k doctors
Top 15%
1.5k doctors
Top 5%
765 doctors
Dr. Klein saw bladder cancer patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
3.3k doctors
Top 15%
3.3k doctors
Top 5%
1.7k doctors
Dr. Klein saw clotting disorders patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
1.2k doctors
Top 15%
1.2k doctors
Top 5%
613 doctors
Dr. Klein saw kidney cancer patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Locations

Dr. Klein sees patients and can be reached at the following location.

Illinois Cancer Specialists
8915 W Golf Rd
Niles, IL 60714
757 miles away

Reviews

Credentials
  • Jacobs School of Medicine and Biomedical Sci, University at Buffalo, Buffalo, New York
    MEDICAL EDUCATION, 1975

Specializations

    1. Allopathic & Osteopathic Physicians
    2. Internal Medicine
    3. Hematology & Oncology
    1. Allopathic & Osteopathic Physicians
    2. Internal Medicine
    3. Hematology

Hospital affiliations

Dr. Klein is able to admit and treat patients at the following hospitals.

  • Northwest Community Hospital
    A
    Hospital safety grade (Fall 2019)
  • Lutheran General Hospital
    C
    Hospital safety grade (Fall 2019)

Insurance accepted

Always check coverage with your doctor’s office.

  • Aetna
  • Anthem
  • Arkansas Blue Cross and Blue Shield
  • Assurant Health
  • Beacon Health Strategies
  • Blue Cross Blue Shield of Arizona
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • Blue Cross and Blue Shield of Alabama
  • Blue Cross and Blue Shield of Florida
  • Blue Cross and Blue Shield of Illinois
  • Blue Cross and Blue Shield of Kansas
  • Blue Cross and Blue Shield of Kansas City
  • Blue Cross and Blue Shield of Louisiana
  • Blue Cross and Blue Shield of Minnesota
  • Blue Cross and Blue Shield of Mississippi
  • Blue Cross and Blue Shield of Montana
  • Blue Cross and Blue Shield of Nebraska
  • Blue Cross and Blue Shield of New Mexico
  • Blue Cross and Blue Shield of North Dakota
  • Blue Cross and Blue Shield of Oklahoma
  • Blue Cross and Blue Shield of Rhode Island
  • Blue Cross and Blue Shield of Texas
  • Blue Cross and Blue Shield of Vermont
  • Blue Cross and Blue Shield of Wyoming
  • Blue Cross of Idaho
  • Blue Shield of California
  • BlueCross BlueShield of South Carolina
  • BlueCross BlueShield of Tennessee
  • Capital District Physicians Health Plan
  • CareFirst BlueCross BlueShield
  • Cigna
  • CoreSource
  • Coventry Health Care
  • Cross and Blue Shield of North Carolina
  • Dean Health Plan
  • EmblemHealth
  • Harvard Pilgrim Health Care
  • Health Net
  • HealthPartners
  • HealthSCOPE Benefits
  • HealthSmart
  • Highmark Blue Cross Blue Shield
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana
  • Independence Blue Cross AmeriHealth
  • Mayo Clinic Health Solutions
  • Medica
  • Medical Mutual of Ohio
  • Medicare
  • Meritain Health
  • Optima Health
  • PreferredOne
  • Premera Blue Cross
  • Priority Health
  • Regence Blue Cross Blue Shield
  • TRICARE
  • United Healthcare
  • Unity Health Insurance
  • Wellmark Blue Cross and Blue Shield