Dr. WILLIAM LESLIE MD is a male Internist, has 32 years of experience and practices in Internal Medicine, Hematology, Medical Oncology, and Hematology & Oncology.
Video profile
Dr. WILLIAM LESLIE has 3 office locations.
Division of Hematology Oncology & Cell Therapy
610 S Maple Ave
Ste 5400
Oak Park, Oak Park, IL 60304

Phone Number
Locations and availability (3)
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

  • Currently 3.5 of 4 stars
Patient comments (2)

The overall average patient rating of Dr. WILLIAM LESLIE is Excellent. Dr. LESLIE has been reviewed by 2 patients who have provided 2 comments. The rating is 3.5 out of 4 stars.

Patient Ratings
Ease of Appointment 4.0
  • Currently 4 of 4 stars
Promptness 4.0
  • Currently 4 of 4 stars
Courteous Staff 4.0
  • Currently 4 of 4 stars
Accurate Diagnosis 4.0
  • Currently 4 of 4 stars
Bedside Manner 4.0
  • Currently 4 of 4 stars
Spends Time with Me 4.0
  • Currently 4 of 4 stars
Follows Up After Visit 4.0
  • Currently 4 of 4 stars

Specialties & Research

Dr. WILLIAM LESLIE, MD is board certified in Internal Medicine, Hematology, and Medical Oncology.

  • He has special expertise in 12 areas:
  • Adult T-Cell Leukemia-Lymphoma
  • Bile Duct Cancer
  • Cancer
  • Colorectal Cancer
  • Gallbladder Cancer
  • Gastrointestinal Cancer
  • Interventional Oncology
  • Liver Cancer
  • Melanoma
  • 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 

Accepted Insurance Plans

Dr. LESLIE accepts these health insurances in at least one office:

  • Great-West Healthcare - 2 plans
  • Blue Cross Blue Shield of Illinois - 3 plans
  • Humana - 2 plans
  • Cigna - 2 plans
  • USA H & W Network - 1 plan


  • Spanish

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Additional Information
Where does Dr. WILLIAM LESLIE practice?
Dr. WILLIAM LESLIE practices Internal Medicine, Hematology, Medical Oncology, and Hematology & Oncology near Oak Park, IL.
Additional practice locations include: Chicago, IL.
See Oak Park Internists, Oak Park Hematologists, and Oak Park Oncologists.