Dr. Leonard M Klein MD Hematologist

Dr. Leonard Klein is a hematologist in Niles, Illinois. He is affiliated with multiple hospitals in the area, including Advocate Lutheran General Hospital and Northwest Community Hospital. He received his medical degree from SUNY Buffalo School of Medicine and Biomedical Sciences and has been in practice for 39 years. Dr. Klein accepts several types of health insurance, listed below. He is one of 19 doctors at Advocate Lutheran General Hospital and one of 13 at Northwest Community Hospital who specialize in Hematology.

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Office Location

See Contact Information

Specialty & Clinical Interests

Hematologist: General Obstetrics & Gynecology

Hospital Affiliation

Advocate Lutheran General Hospital
High performing in Cancer

Northwest Community Hospital
High performing in Cancer

Education & Medical Training

University of Texas Southwestern/Parkland Health & Hospital System
Residency, Internal Medicine, 1975 - 1978

Washington University/Barnes-Jewish Hospital
Fellowship, Hematology, 1978 - 1979

SUNY Buffalo School of Medicine and Biomedical Sciences
Class of 1975

Insurances Accepted

  • Aetna Choice POS II
  • Aetna HMO
  • Anthem Blue Access PPO
  • Anthem Blue Preferred HMO
  • BCBS Blue Card PPO
  • BCBS California PowerSelect HMO
  • BCBS California PPO
  • BCBS Illinois PPO
  • Blue Shield CA Local Access Plus HMO
  • Blue Shield California HMO
  • Blue Shield California PPO
  • CIGNA HMO
  • CIGNA Open Access
  • CIGNA PPO
  • First Health PPO
  • GHI PPO
  • Great West PPO
  • Health Net California Large Group PPO
  • Health Net HMO - Employer Group
  • HealthAmerica HealthAssurance PPO
  • Humana ChoiceCare Network PPO
  • Medical Mutual of Ohio SuperMed Plus
  • Medical Mutual of Ohio SuperMed POS
  • Multiplan PHCS PPO
  • Multiplan PHCS PPO - Kaiser
  • Multiplan PPO
  • Pacificare HMO
  • Sagamore Health Plus
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO
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