Internist, Hematology Specialist, Oncology Specialist (cancer)
33 years of experience
Video profile
Accepting new patients
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).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. William Leslie is Excellent. Dr. Leslie has been reviewed by 4 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. William Leslie, MD is board certified in Internal Medicine, Hematology, and Medical Oncology.

  • He has special expertise in 17 areas:
  • Acute Myeloid Leukemia
  • Adult T-Cell Leukemia-Lymphoma
  • Bile Duct Cancer
  • Cancer
  • Colorectal Cancer
  • Deep Vein Thrombosis
  • Gallbladder Cancer
  • Gastrointestinal Cancer
  • Hepatitis C
  • Interventional Oncology
  • Leukemia
  • Liver Cancer
  • Melanoma
  • Myeloid Leukemia
  • Pancreatic Cancer
  • Squamous Cell Carcinoma
  • Stomach Cancer

Education & Awards

Dr. Leslie graduated from Oregon Health & Science University, Portland.


Dr. Leslie has 2 hospital affiliations:

  • Rush Oak Park Hospital 
  • Rush University Medical Center 


  • Spanish

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Additional Information
Dr. William Leslie MD is a male Internist, has 33 years of experience and practices in Internal Medicine, Hematology, and Medical Oncology.
Where does Dr. William Leslie practice?
Dr. William Leslie has 3 office locations.
Dr. William Leslie practices Internal Medicine, Hematology, and Medical Oncology near Oak Park, IL.
Additional practice locations include: Chicago, IL.
See Oak Park Internists, Oak Park Hematologists, and Oak Park Oncologists.