About
Dr. Leonid Kleynberg is a highly experienced physician specializing in hematology and oncology, with over five decades of clinical practice. Based in Los Angeles, Dr. Kleynberg has extensive expertise in diagnosing and treating blood disorders and cancers, and is affiliated with leading hospitals.
Known for his compassionate, patient-centered approach, he is dedicated to providing personalized care and evidence-based treatment to support each patient’s health journey.
He is affiliated with leading hospitals.

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