Dr. Klein hails from New York City. He completed his medical school training at
State University of New York at Buffalo, where he received awards for excellence in internal medicine. Dr. Klein completed his residency in Internal Medicine at Parkland Memorial Hospital in Dallas, Texas and a Fellowship in
Hematology/Oncology at Barnes Hospital in St. Louis. He has also completed a
fellowship in Medical Oncology at the City of Hope National Medical Center in Duarte, California.
Dr. Klein has been in private practice in Cancer Care & Hematology Specialists of
Chicagoland with special interests in the treatment of Hematological malignancies with experience in autologous and allogenic blood and bone marrow transplants. His many honors include the Gibson Anatomical Society in 1972, Junior AGA in 1974, Philip P. Sanger Award for excellence in Internal Medicine and the Alumni Award for excellence in clinical clerkships.
Dr. Klein is married with two sons and in his spare time enjoys …sports, music and travel.


Dr. Leonard Marc Klein, MD
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- Advocate Lutheran General Hospital
Medical School
- 1978
University At Buffalo State University Of New York School Of Medicine & Biomedical Sciences
Illinois Cancer Specialists Niles
8915 W Golf Rd Fl 2
Niles
IL
60714
USA
+18478279060
- Chemotherapy
- Blood transfusion
- Bone Marrow or Stem Cell Transplant
- Accepts Medicare
- Accepts Medicaid
- Health Alliance PPO
- HealthLink PPO
- Coventry IL PPO
- BCBS IL Blue Precision HMO
- Health Alliance HMO/POS
- Coventry PPO Platinum
- Humana National HMO
- UHC Navigate HMO
- Coventry HealthAmerica PPO
- PHCS PPO
- UHC Navigate POS
- CIGNA HMO
- Aetna Choice POS II
- Multiplan PPO
- Health Alliance IL IA Public Mrktplace QHP Provider Directory
- BCBS IL BlueCare Direct
- First Health PPO
- Humana Preferred PPO
- Humana ChoiceCare Network PPO
- CIGNA Open Access Plus
- UHC Options PPO
- Aetna Signature Administrators PPO
- BCBS IL BlueChoice Select
- UHC Choice Plus POS
- Aetna HMO
- CIGNA PPO
- BCBS IL PPO
- Aetna Managed Choice POS Open Access
- Humana Choice POS
- BCBS Blue Card PPO
- UHC Compass HMO
- PriorityHealth Priority PPO
- Aexcel PPO
- BCBS IL Blue Choice Options
- Blue Advantage HMO - PCPs Only
- Blue Choice Preferred PPO
- Blue Choice Select PPO
- Blue Precision HMO
- HMO illinois - PCPs Only
- MEDICA CHOICE WITH UNITEDHEALTHC
- UHC NAVIGATE PLUS POS
- UHC Nexus Open Access
- Aetna Elect Choice EPO Open Access
- Aetna Innovation Health Aetna Premier Care Network Plus
- Aetna Open Choice PPO
- Aetna Savings Plus of IL OA Select
- BCBS IL Blue Advantage HMO - PCPs Only
- BCBS IL Blue Choice Select PPO
- BCBS IL Blue Print PPO
- BCBS IL HMO - PCPs Only
- HCSC BCBS IL Blue Precision HMO
- Humana / ChoiceCare Network PPO
- Humana/ChoiceCare+ Network PPO
- Medica Choice With UHC
- Oscar Insurance - IL Individual Choice
- UHC Individual Exchange Benefit Plan IL
- Humana HMO Premier
- SIHO Network
- BCBS Blue Choice Preferred PPO
- BCBSA Blue Card High Performance Network
- Anthem Blue Access PPO
- BCBS IL Blue Percision HMO
- Sickle-Cell Disease
- Anemia
- Hemolytic Anemia
- Iron Deficiency Anemia
- Hodgkin's Lymphoma
- Leukemia
- Malignant Neoplasm of Female Breast
- Multiple Myeloma
- Non-Hodgkin's Lymphoma
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