18 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Hahn, Hematology / Oncology Specialist in Chicago, IL?
Dr. Olwen Hahn, MD is a Hematology / Oncology Specialist, who primarily practices in Chicago, IL. She has been practicing for over 18 years and is board certified. Dr. Hahn graduated from Emory University School Of Medicine. She is a member of the American Society of Oncology. Dr. Hahn is fluent in English, Arabic, and French, and is currently seeing new patients. Dr. Hahn’s practice accepts Medicare, UnitedHealthcare, Aetna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Hahn’s office.
What are Areas of Expertise for Dr. Hahn?
Dr. Olwen Hahn, MD is a highly-rated, board-certified Hematology / Oncology Specialist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Hahn empowers patients to confidently navigate their health journey, specializing in Breast Cancer, or comprehensive wellness support. Serving the Chicago/IL community, Dr. Hahn is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Hahn go to medical school and complete their residency?
Fellowship: The University of Chicago Medicine
Medical School: Emory University School Of Medicine
Is Dr. Hahn board certified as a Hematology / Oncology Specialist?
Yes, Dr. Olwen Hahn, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Hahn speak?
Dr. Hahn and their clinical team can communicate with patients in the following languages:
Arabic
English
French
What conditions does Dr. Hahn treat?
As a Hematology / Oncology Specialist, Dr. Hahn 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. Hahn. 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:
- Breast Cancer
- Right Female Nipple and Areola Breast Cancer
- Upper-Outer Quadrant Female Breast Cancer
- Female Breast Cancer
- Malignant Breast Tumor
- Breast Carcinoma
- Mammary cancer
- Breast carcinoma
- Breast tumor
- Cancer of right female nipple
- Right female areola tumor
- Malignant growth on right female nipple
- Female breast cancer upper-outer
- Upper-outer female breast tumor
- Malignant growth in upper-outer female breast
ICD-10 Codes:
- C50919: Malignant neoplasm of unspecified site of unspecified female breast
- C50911: Malignant neoplasm of unspecified site of right female breast
- C50912: Malignant neoplasm of unspecified site of left female breast
- C50819: Malignant neoplasm of overlapping sites of unspecified female breast
- C50011: Malignant neoplasm of nipple and areola, right female breast
- C50419: Malignant neoplasm of upper-outer quadrant of unspecified female breast
- C50412: Malignant neoplasm of upper-outer quadrant of left female breast
Also known as:
- Cancer Chemotherapy
- Chemo treatment
- Oncology chemotherapy
- Cancer drug therapy
ICD-10 Codes:
- Z5111: Encounter for antineoplastic chemotherapy
Also known as:
- Personal History of Breast Cancer
- Breast Cancer
- Past breast cancer
- Previous mammary malignancy
- History of breast tumor
ICD-10 Codes:
- Z853: Personal history of malignant neoplasm of breast
Also known as:
- Secondary Bone Cancer
- Bone Cancer
- Metastatic bone cancer
- Cancer spread to bone
- Bone metastases
ICD-10 Codes:
- C7951: Secondary malignant neoplasm of bone
What procedures does Dr. Hahn perform?
As a Hematology / Oncology Specialist, Dr. Hahn performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Hahn. 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:
- Inserting a Long-Term IV Port (Central Line)
- Tunneled central venous catheter insertion
- Subcutaneous port placement
- Central line with port
CPT Codes:
- 36561: Insertion of tunneled centrally inserted central venous access device, with subcutaneous port; age 5 years or older
Also known as:
- Blood Transfusion
- Blood Transfusion and Donation
- Blood product transfusion
- Red blood cell transfusion
- Plasma transfusion
CPT Codes:
- 36430: Transfusion, blood or blood components
Also known as:
- Declotting of Vascular Access Device
- Catheter declotting
- Thrombolytic therapy for catheter
- Blocked port-a-cath treatment
- Vascular access device unblocking
CPT Codes:
- 36593: Declotting by thrombolytic agent of implanted vascular access device or catheter
Does Dr. Hahn accept my insurance?
Dr. Hahn accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Hahn accept in Chicago, IL?
Dr. Hahn in Chicago, 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
Cook County Health & Hospitals System
CVS Health (formerly Aetna)
Express Scripts
Humana
Medicare
State of Illinois
State of Nevada
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Hahn's office located?
Recognitions
Memberships & Associations
American Society of Oncology
Member
What is Dr. Hahn's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Hahn's National Provider Identifier (NPI) number is 1992823611.
What common questions do patients ask about Dr. Hahn?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Hahn
What is Dr. Olwen Hahn's specialty?
Dr. Hahn is a Hematology / Oncology Specialist near Chicago, 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. Hahn to book an appointment today.
Is this Dr. Olwen Hahn affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Hahn is affiliated with UChicago Medicine - University of Chicago 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 Olwen Hahn accepting new patients in Chicago, IL?
Yes, Dr. Olwen Hahn is accepting new patients at this time.
Does Dr. Olwen Hahn offer online booking?
Please contact Dr. Hahn's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Olwen Hahn?
Please contact Dr. Hahn's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Olwen Hahn have?
Dr. Olwen Hahn is certified by the American Board of Internal Medicine.
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Connect with DR. Hahn
355 E Grand Ave
Chicago, IL 60611