Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Leslie, Hematology / Oncology Specialist in Oak Park, IL?
Dr. William Leslie, MD is a Hematology / Oncology Specialist, who primarily practices in Oak Park, IL with 2 additional practice locations. He is board certified by the American Board of Internal Medicine. Dr. Leslie completed his residency at University of Illinois - Internal Medicine. Dr. Leslie is fluent in English and Spanish, and is currently seeing new patients. Dr. Leslie’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Leslie’s office at (312) 942-5904.
Where did Dr. Leslie go to medical school and complete their residency?
Fellowship: University of Illinois College of Medicine-Chicago - Internal Medicine | Rush University Medical Center - Medical Oncology
Residency: University of Illinois - Internal Medicine
Medical School: Oregon Health & Science University School of Medicine (Education)
Is Dr. Leslie board certified in Hematology / Oncology Specialist?
Yes, Dr. William Leslie, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Leslie speak?
Dr. Leslie and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Leslie treat?
As a Hematology / Oncology Specialist, Dr. Leslie diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Leslie. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Colorectal Cancer
- Rectal cancer
- Colon cancer
- Bowel cancer
- Malignant neoplasm of rectum
- Malignant neoplasm of colon
- Malignant neoplasm of sigmoid colon
- Colon Cancer
- Rectal Cancer
- Bowel Cancer
- Colorectal Carcinoma
- Ascending Colon Cancer
- Transverse Colon Cancer
ICD-10 Codes:
- C20: Malignant neoplasm of rectum
- C189: Malignant neoplasm of colon, unspecified
- C187: Malignant neoplasm of sigmoid colon
- C19: Malignant neoplasm of rectosigmoid junction
- C182: Malignant neoplasm of ascending colon
- C184: Malignant neoplasm of transverse colon
Also known as:
- Pancreatic Cancer
- Pancreas Cancer
- Malignant Pancreatic Tumor
- Pancreatic Carcinoma
- Cancer of the pancreas
- Malignant neoplasm of pancreas
- Pancreatic adenocarcinoma
ICD-10 Codes:
- C259: Malignant neoplasm of pancreas, unspecified
- C250: Malignant neoplasm of head of pancreas
Also known as:
- Cancer Chemotherapy
- Chemo treatment
- Oncology chemotherapy
- Cancer drug therapy
ICD-10 Codes:
- Z5111: Encounter for antineoplastic chemotherapy
Also known as:
- Esophageal Cancer
- Esophagus Cancer
- Esophageal Carcinoma
- Malignant Neoplasm of Esophagus
- Gullet Cancer
ICD-10 Codes:
- C159: Malignant neoplasm of esophagus, unspecified
- C155: Malignant neoplasm of lower third of esophagus
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Bile Duct Cancer
- Liver Cancer
- Cholangiocarcinoma
- Intrahepatic cholangiocarcinoma
ICD-10 Codes:
- C221: Intrahepatic bile duct carcinoma
Also known as:
- Liver Cancer
- Childhood Liver Cancer
- Hepatic Cancer
- Hepatocellular Carcinoma
ICD-10 Codes:
- C220: Liver cell carcinoma
Also known as:
- High Cholesterol
- Cholesterol
- Triglycerides
- Hyperlipidemia
- High lipids
- Dyslipidemia
ICD-10 Codes:
- E785: Hyperlipidemia, unspecified
Also known as:
- Primary Cancer (Unspecified Site)
- Cancer
- Malignant tumor
- Neoplasm
- Cancer of unknown primary
ICD-10 Codes:
- C801: Malignant (primary) neoplasm, unspecified
Also known as:
- Stomach Gastrointestinal Stromal Tumor
- Gastrointestinal stromal tumor
- GIST of stomach
- Gastric GIST
- Stomach tumor
ICD-10 Codes:
- C49A2: Gastrointestinal stromal tumor of stomach
Also known as:
- Small Intestine Cancer
- Intestinal Cancer
- Small Intestine Cancer Treatment (PDQ)
- Duodenal Cancer
- Small Bowel Cancer
- Malignant Neoplasm of Duodenum
ICD-10 Codes:
- C170: Malignant neoplasm of duodenum
Also known as:
- Other non-cancerous neuroendocrine Tumor
- Benign Tumor
- Other benign neuroendocrine growths
- Various non-cancerous hormone-producing tumors
ICD-10 Codes:
- D3A8: Other benign neuroendocrine tumors
Also known as:
- Type 2 Diabetes
- Diabetes Type 2
- Type 2 diabetes
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
Which procedures does Dr. Leslie perform as a Hematology / Oncology Specialist?
As a Hematology / Oncology Specialist, procedures performed by a Dr. William Leslie may include:
- 3D Conformal Radiotherapy
- Adaptive Radiation Therapy (ART)
- Adrenalectomy
- Blood Thinning Therapy / Anticoagulation
- Blood Transfusion Consultation
- Blood Transfusion Follow Up
- Bone Excision
- Bone Grafting
For detailed information, please contact Dr. Leslie's office.
Does Dr. Leslie accept my insurance?
Dr. Leslie accepts most major insurance plans. Important: Please call our office at (312) 942-5904 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Leslie accept in Oak Park, IL?
Dr. Leslie in Oak Park, IL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Cross Blue Shield of Michigan
Centene
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Express Scripts
Health Care Service Corporation (HCSC)
Humana
Medicare
Molina
View All Insurances
Where is Dr. Leslie's office located?
Dr. William Leslie's Primary Practice
520 S Maple Ave Fl 3
Oak Park, IL 60304
(312) 942-5904
What is Dr. Leslie's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Leslie's National Provider Identifier (NPI) number is 1538129275.
What common questions do patients ask about Dr. Leslie?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Leslie
What is Dr. William Leslie's specialty?
Dr. Leslie is a Hematology / Oncology Specialist near Oak Park, IL. An internist doctor of osteopathy specializing in the combined treatment of hematology and oncology disorders. A doctor of osteopathy who is board eligible or certified by the American Osteopathic Board of Internal Medicine was previously able to obtain a Certificate of Special Qualifications in Hematology and Oncology; however, this certificate is no longer available. Contact Dr. Leslie to book an appointment today.
Is this Dr. William Leslie affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Leslie is affiliated with RUSH University Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Hematology / Oncology Specialist?
Explore Hematology / Oncology Specialist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is William Leslie accepting new patients in Oak Park, IL?
Yes, Dr. William Leslie is accepting new patients at this time.
Does Dr. William Leslie offer online booking?
Please contact Dr. Leslie's office at (312) 942-5904 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with William Leslie?
Please contact Dr. Leslie's office at (312) 942-5904 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. William Leslie have?
Dr. William Leslie is certified by the American Board of Internal Medicine.
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