Olwen M. Hahn
Expertise in
11
conditions

Dr. Olwen M. Hahn

Hematology | Oncology
5758 S. Maryland Ave., 
Chicago, IL 
Accepting New Patients
Offers Telehealth
Expertise in
11
conditions
5758 S. Maryland Ave., 
Chicago, IL 

Overview

Olwen Hahn is a Hematologist and an Oncologist practicing medicine in Chicago, Illinois.

Dr. Hahn is highly rated in 11 conditions, according to our data. Her clinical expertise encompasses Breast Cancer, Angiosarcoma, Paget Disease of the Breast, Prostatectomy, and Bone Marrow Aspiration.

Dr. Hahn is board certified in Practicing Since2007 and Internal Medicine Medical Oncology. She is actively involved in clinical research, co-authoring 53 peer reviewed articles and participating in 14 clinical trials. Dr. Hahn is currently accepting new patients.

Specialties

Hematology
Oncology

Licenses

Internal Medicine in IL

Board Certifications

Practicing Since2007
Internal Medicine Medical Oncology

Fellowships

University of Chicago Medicine

Hospital Affiliations

The University Of Chicago Medical Center
UChicago Medicine Faculty Physicians

Languages Spoken

English

Gender

Female

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Essence Healthcare
  • INSURANCE PLAN
  • MEDICARE MAPD
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Meridian Choice
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Northern Plains Alliance
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE PDP
Oscar
  • EPO
  • HMO
  • PPO
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • PPO
TeamCare
  • OTHER COMMERCIAL
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Walgreens
  • MEDICARE DISCOUNT CARD
  • MEDICARE PDP
  • OTHER MEDICARE
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Zing Health
  • MEDICARE MAPD
  • MEDICARE SNP
View 14 Less Insurance Carriers -

Locations

UChicago Medicine Duchossois Center for Advanced Medicine - Hyde Park
5758 S. Maryland Ave., Chicago, IL 60637

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

13 Clinical Trials

A Randomized Phase III Double Blinded Placebo Controlled Trial of Aspirin as Adjuvant Therapy for HER2 Negative Breast Cancer: The ABC Trial
A Randomized Phase III Double Blinded Placebo Controlled Trial of Aspirin as Adjuvant Therapy for HER2 Negative Breast Cancer: The ABC Trial
Enrollment Status: Terminated
Publish Date: September 04, 2026
Intervention Type: Other, Drug
Study Drug: Aspirin
Study Phase: Phase 3
Randomized Phase III Trial Evaluating the Role of Weight Loss in Adjuvant Treatment of Overweight and Obese Women With Early Breast Cancer
Randomized Phase III Trial Evaluating the Role of Weight Loss in Adjuvant Treatment of Overweight and Obese Women With Early Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: September 02, 2026
Intervention Type: Other
Study Phase: Phase 3
A Randomized Phase II Trial of Tamoxifen Versus Z-Endoxifen HCL in Postmenopausal Women With Metastatic Estrogen Receptor Positive, HER2 Negative Breast Cancer
A Randomized Phase II Trial of Tamoxifen Versus Z-Endoxifen HCL in Postmenopausal Women With Metastatic Estrogen Receptor Positive, HER2 Negative Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: August 28, 2026
Intervention Type: Other, Drug
Study Drugs: Endoxifen Hydrochloride, Tamoxifen Citrate
Study Phase: Phase 2
A Randomized Phase III Trial of Endocrine Therapy Plus Entinostat/Placebo in Patients With Hormone Receptor-Positive Advanced Breast Cancer
A Randomized Phase III Trial of Endocrine Therapy Plus Entinostat/Placebo in Patients With Hormone Receptor-Positive Advanced Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: August 04, 2026
Intervention Type: Other, Procedure, Drug
Study Drugs: Entinostat, Exemestane, Goserelin, Goserelin Acetate
Study Phase: Phase 3
Randomized, Double-blind, Phase 3 Study of Tucatinib or Placebo in Combination With Ado-trastuzumab Emtansine (T-DM1) for Subjects With Unresectable Locally-advanced or Metastatic HER2+ Breast Cancer (HER2CLIMB-02)
Randomized, Double-blind, Phase 3 Study of Tucatinib or Placebo in Combination With Ado-trastuzumab Emtansine (T-DM1) for Subjects With Unresectable Locally-advanced or Metastatic HER2+ Breast Cancer (HER2CLIMB-02)
Enrollment Status: Active_not_recruiting
Publish Date: July 23, 2026
Intervention Type: Drug
Study Drugs: tucatinib, T-DM1
Study Phase: Phase 3
(CompassHER2-pCR): Preoperative THP and Postoperative HP in Patients Who Achieve a Pathologic Complete Response
(CompassHER2-pCR): Preoperative THP and Postoperative HP in Patients Who Achieve a Pathologic Complete Response
Enrollment Status: Active_not_recruiting
Publish Date: July 10, 2026
Intervention Type: Procedure, Biological, Drug, Radiation
Study Drugs: Docetaxel, Nab-Paclitaxel, Paclitaxel, Pertuzumab, Trastuzumab, Trastuzumab Emtansine
Study Phase: Phase 2
The CompassHER2 Trials (COMprehensive Use of Pathologic Response ASSessment to Optimize Therapy in HER2-Positive Breast Cancer): CompassHER2 Residual Disease (RD), A Double-Blinded, Phase III Randomized Trial of T-DM1 and Placebo Compared With T-DM1 and Tucatinib
The CompassHER2 Trials (COMprehensive Use of Pathologic Response ASSessment to Optimize Therapy in HER2-Positive Breast Cancer): CompassHER2 Residual Disease (RD), A Double-Blinded, Phase III Randomized Trial of T-DM1 and Placebo Compared With T-DM1 and Tucatinib
Enrollment Status: Active_not_recruiting
Publish Date: June 15, 2026
Intervention Type: Other, Biological, Drug
Study Drugs: Trastuzumab Emtansine, Tucatinib
Study Phase: Phase 3
ALTernate Approaches for Clinical Stage II or III Estrogen Receptor Positive Breast Cancer Neoadjuvant TrEatment (ALTERNATE) in Postmenopausal Women: A Phase III Study
ALTernate Approaches for Clinical Stage II or III Estrogen Receptor Positive Breast Cancer Neoadjuvant TrEatment (ALTERNATE) in Postmenopausal Women: A Phase III Study
Enrollment Status: Active_not_recruiting
Publish Date: June 05, 2026
Intervention Type: Drug
Study Drugs: Fulvestrant, Anastrozole
Study Phase: Phase 3
A Phase II Trial Assessing the Tolerability of Palbociclib in Combination With Letrozole or Fulvestrant in Patients Aged 70 and Older With Estrogen Receptor-Positive, HER2-Negative Metastatic Breast Cancer
A Phase II Trial Assessing the Tolerability of Palbociclib in Combination With Letrozole or Fulvestrant in Patients Aged 70 and Older With Estrogen Receptor-Positive, HER2-Negative Metastatic Breast Cancer
Enrollment Status: Completed
Publish Date: April 29, 2026
Intervention Type: Other, Drug
Study Drugs: Palbociclib, Letrozole, Fulvestrant
Study Phase: Phase 2
Phase II Randomized Placebo-Controlled Trial of Cisplatin With or Without ABT-888 (Veliparib) in Metastatic Triple-Negative Breast Cancer and/or BRCA Mutation-Associated Breast Cancer, With or Without Brain Metastases
Phase II Randomized Placebo-Controlled Trial of Cisplatin With or Without ABT-888 (Veliparib) in Metastatic Triple-Negative Breast Cancer and/or BRCA Mutation-Associated Breast Cancer, With or Without Brain Metastases
Enrollment Status: Completed
Publish Date: April 08, 2026
Intervention Type: Other, Drug
Study Drugs: Cisplatin, Veliparib
Study Phase: Phase 2
View 9 Less Clinical Trials

53 Total Publications

Impact of a Weight Loss Intervention on 1-Year Weight Change in Women With Stage II/III Breast Cancer: Secondary Analysis of the Breast Cancer Weight Loss (BWEL) Trial.
Impact of a Weight Loss Intervention on 1-Year Weight Change in Women With Stage II/III Breast Cancer: Secondary Analysis of the Breast Cancer Weight Loss (BWEL) Trial.
Journal: JAMA oncology
Published: August 21, 2025
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Frequently Asked Questions about Dr. Olwen M. Hahn

How do I make an appointment with Dr. Olwen M. Hahn?

You can book an appointment with Dr. Olwen M. Hahn by calling their office at 888-824-0200. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Olwen M. Hahn a top-rated expert for Breast Cancer?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Olwen M. Hahn is classified as an Elite expert for Breast Cancer, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Olwen M. Hahn specialize in?

While Dr. Olwen M. Hahn is a Hematology, they have specific expertise in Breast Cancer, Angiosarcoma, and Paget Disease of the Breast. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Hematology.

Does Dr. Olwen M. Hahn participate in research or clinical trials?

Yes. Dr. Olwen M. Hahn has published 53 articles and abstracts on conditions like Breast Cancer. You can view a list of Dr. Olwen M. Hahn's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Olwen M. Hahn accept my insurance?

Dr. Olwen M. Hahn accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 888-824-0200 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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