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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Jeffrey Klein:

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Specialties & Research

Dr. Jeffrey Klein, MD is board certified in Internal Medicine and Medical Oncology.

  • He has special expertise in 1 area:
  • Cancer

Education & Awards

Dr. Klein graduated from Northwestern University, Chicago.


Dr. Klein has 2 hospital affiliations:

  • West Hills Hospital & Medical Center 
  • Los Robles Hospital and Medical Center 


  • English

> > > > Dr. Jeffrey Klein, MD

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Additional Information
Dr. Jeffrey Howard Klein MD is a male Internist, has 44 years of experience and practices in Internal Medicine and Medical Oncology.
Where does Dr. Jeffrey H. Klein practice?
Dr. Jeffrey Klein has 1 office location.
Dr. Jeffrey Klein practices Internal Medicine and Medical Oncology near Encino, CA.
See Encino Internists and Encino Oncologists.