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  • Pediatrics, Critical Care Medicine, Internal Medicine
  • 41 years of experience
  • Leff Jonathan A Office 678 RUSTIC HILLS DR, Simi Valley, CA 93065

Brief Intro

Dr. Leff graduated from the University of Pennsylvania School of Medicine,Perelman School of Medicine At University of Pennsylvania in 1984. He works in SIMI VALLEY, CA and specializes in Internal Medicine, Other Specialty, Critical Care Medicine and Pediatrics.

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Education Background

MEDICAL SCHOOL

University Of Pennsylvania School Of Medicine

Perelman School Of Medicine At University Of Pennsylvania - 1984

Location & Hours

  • Leff Jonathan A Office
  • 678 RUSTIC HILLS DR, Simi Valley, CA 93065

Specialties Treated

  • Internal Medicine
  • Other Specialty
  • Critical Care Medicine
  • Pediatrics
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  • Cancer 86
  • Cardiology, Heart & Vascular Surgery 79
  • Orthopedics 161
  • Neurology & Neurosurgery 120
  • Gastroenterology & GI Surgery 149
  • Pulmonology & Lung Surgery 161
  • Diabetes & Endocrinology 65
  • Children's Hospital 18
  • Urology 149
  • Psychiatry 91
  • Geriatrics 143
  • Rehabilitation 73
  • Obsterics & Gynecology 23
  • Ophthalmology 8
  • Ear, Nose & Throat 10
  • Rheumatology 4
  • Long Term Care 19
  • Maternity Care (Uncomplicated Pregnancy) 99