Joyce A. O'shaughnessy
Expertise in
14
conditions

Dr. Joyce A. O'shaughnessy

Oncology
3410 Worth Street, Suite 400, 
Dallas, TX 
Accepting New Patients
Offers Telehealth
44 Years of Experience
Referral required
Before you request
Expertise in
14
conditions
3410 Worth Street, Suite 400, 
Dallas, TX 

Overview

Dr. O'Shaughnessy is a Medical Oncologist that focuses on breast cancer prevention and treatment. She founded The School of Breast Oncology, a program providing a curriculum-based program focused exclusively on breast cancer clinical management. Dr. O'Shaughnessy attended medical school at Yale University School of Medicine in New Haven, CT. She then completed her Internal Medicine residency at Massachusetts General Hospital in Boston, MA and a Medical Oncology fellowship at National Cancer Institute in Bethesda, MD. She is co-chair of Breast Cancer Research, chair of Breast Cancer Prevention Research at Baylor Charles A. Sammons Cancer Center and a member of the Scientific Advisory Board for US Oncology Research Network.

Dr. O'shaughnessy is highly rated in 14 conditions, according to our data. Her clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, PIK3CA-Related Overgrowth Spectrum, Inflammatory Breast Cancer, and Tissue Biopsy.

Dr. O'shaughnessy is board certified in Medical Oncology- American Board Of Internal Medicine, Medical Oncology- American Board Of Internal Med/Medical Oncology, Internal Medicine- American Board Of Internal Med, and Internal Medicine- American Board Of Internal Medicine. She is actively involved in clinical research, co-authoring 259 peer reviewed articles and participating in 27 clinical trials. Dr. O'shaughnessy is currently accepting new patients.

Graduate Year

1982

Specialties

Oncology

Licenses

Internal Medicine in TX

Board Certifications

Medical Oncology- American Board Of Internal Medicine
Medical Oncology- American Board Of Internal Med/Medical Oncology
Internal Medicine- American Board Of Internal Med
Internal Medicine- American Board Of Internal Medicine

Fellowships

Medical Oncology, National Cancer Institute, NIH - 1988

Hospital Affiliations

Baylor Scott And White Medical Center Mckinney
Baylor Scott & White Medical Center Grapevine
Hunt Regional Medical Center
Baylor University Medical Center
Baylor Scott & White Medical Center Plano
Baylor Scott & White The Heart Hospital - Dallas
Baylor Scott & White Institute For Rehabilitation - Dallas
Baylor University Medical Center, Part Of Baylor Scott & White Health

Languages Spoken

English
Spanish

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
Baylor Scott & White Health
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
EMI Health
  • PPO
Friday Health

Accepted plan types not found. Please verify directly with the provider.

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
Mass General Brigham Health Plan
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
Oscar
  • EPO
  • HMO
  • PPO
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • PPO
Quartz Health Plan
  • HMO
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • OTHER MEDICARE PART D
Scott and White Health
  • HMO
  • POS
SelectHealth
  • HMO
  • POS
Superior Health Plan
  • MANAGED MEDICAID PLAN
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
TeamCare
  • OTHER COMMERCIAL
Trustmark
  • PPO
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
View 21 Less Insurance Carriers -

Locations

Texas Oncology, P.A.
3410 Worth Street, Suite 400, Dallas, TX 75246

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.

25 Clinical Trials

A Phase 2 Basket Study of Tucatinib in Combination With Trastuzumab in Subjects With Previously Treated, Locally Advanced Unresectable or Metastatic Solid Tumors Driven by HER2 Alterations
A Phase 2 Basket Study of Tucatinib in Combination With Trastuzumab in Subjects With Previously Treated, Locally Advanced Unresectable or Metastatic Solid Tumors Driven by HER2 Alterations
Enrollment Status: Active_not_recruiting
Publish Date: August 21, 2026
Intervention Type: Drug
Study Drugs: Tucatinib, Trastuzumab, Fulvestrant
Study Phase: Phase 2
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
EMBER-3: A Phase 3, Randomized, Open-Label Study of Imlunestrant, Investigator's Choice of Endocrine Therapy, and Imlunestrant Plus Abemaciclib in Patients With Estrogen Receptor Positive, HER2 Negative Locally Advanced or Metastatic Breast Cancer Previously Treated With Endocrine Therapy
EMBER-3: A Phase 3, Randomized, Open-Label Study of Imlunestrant, Investigator's Choice of Endocrine Therapy, and Imlunestrant Plus Abemaciclib in Patients With Estrogen Receptor Positive, HER2 Negative Locally Advanced or Metastatic Breast Cancer Previously Treated With Endocrine Therapy
Enrollment Status: Active_not_recruiting
Publish Date: July 22, 2026
Intervention Type: Drug
Study Drugs: Imlunestrant, Exemestane, Fulvestrant, Abemaciclib
Study Phase: Phase 3
A Randomized, Open-Label, Phase 3 Study of Abemaciclib Combined With Standard Adjuvant Endocrine Therapy Versus Standard Adjuvant Endocrine Therapy Alone in Patients With High Risk, Node Positive, Early Stage, Hormone Receptor Positive, Human Epidermal Receptor 2 Negative, Breast Cancer
A Randomized, Open-Label, Phase 3 Study of Abemaciclib Combined With Standard Adjuvant Endocrine Therapy Versus Standard Adjuvant Endocrine Therapy Alone in Patients With High Risk, Node Positive, Early Stage, Hormone Receptor Positive, Human Epidermal Receptor 2 Negative, Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: April 24, 2026
Intervention Type: Drug
Study Drugs: Abemaciclib, Standard Adjuvant Endocrine Therapy
Study Phase: Phase 3
A Global, Phase 2 Study of ARX788 in HER2-positive Metastatic Breast Cancer Patients Who Were Previously Treated With T-DXd
A Global, Phase 2 Study of ARX788 in HER2-positive Metastatic Breast Cancer Patients Who Were Previously Treated With T-DXd
Enrollment Status: Active_not_recruiting
Publish Date: March 09, 2026
Intervention Type: Drug
Study Drug: ARX788
Study Phase: Phase 2
A Phase 1-2 Dose-escalation and Expansion Study of ST101 in Patients With Advanced Unresectable and Metastatic Solid Tumors
A Phase 1-2 Dose-escalation and Expansion Study of ST101 in Patients With Advanced Unresectable and Metastatic Solid Tumors
Enrollment Status: Active_not_recruiting
Publish Date: February 09, 2026
Intervention Type: Drug, Radiation
Study Phase: Phase 1/Phase 2
Single Arm, Open Label Phase 1b/2 Study of SGN-LIV1A in Combination With Pembrolizumab for First-Line Treatment of Patients With Unresectable Locally-Advanced or Metastatic Triple-Negative Breast Cancer
Single Arm, Open Label Phase 1b/2 Study of SGN-LIV1A in Combination With Pembrolizumab for First-Line Treatment of Patients With Unresectable Locally-Advanced or Metastatic Triple-Negative Breast Cancer
Enrollment Status: Completed
Publish Date: December 12, 2025
Intervention Type: Drug
Study Drugs: ladiratuzumab vedotin, Pembrolizumab
Study Phase: Phase 1/Phase 2
A Randomized Phase 3 Double-Blinded Study Comparing the Efficacy and Safety of Niraparib to Placebo in Participants With Either HER2-Negative BRCA-Mutated or Triple-Negative Breast Cancer With Molecular Disease Based on Presence of Circulating Tumor DNA After Definitive Therapy (ZEST)
A Randomized Phase 3 Double-Blinded Study Comparing the Efficacy and Safety of Niraparib to Placebo in Participants With Either HER2-Negative BRCA-Mutated or Triple-Negative Breast Cancer With Molecular Disease Based on Presence of Circulating Tumor DNA After Definitive Therapy (ZEST)
Enrollment Status: Active_not_recruiting
Publish Date: July 16, 2025
Intervention Type: Drug
Study Drug: Niraparib
Study Phase: Phase 3
Phase 1a/2a Dose Escalation Trial to Determine Safety, Tolerance, MTD, and Preliminary Antineoplastic Activity of AVID100, in Patients With Advanced or Metastatic Solid Tumors of Epithelial Origin
Phase 1a/2a Dose Escalation Trial to Determine Safety, Tolerance, MTD, and Preliminary Antineoplastic Activity of AVID100, in Patients With Advanced or Metastatic Solid Tumors of Epithelial Origin
Enrollment Status: Terminated
Publish Date: June 11, 2025
Intervention Type: Drug
Study Drug: AVID100
Study Phase: Phase 1/Phase 2
A Phase 2, Single-Arm, Open-Label Study of Trilaciclib Administered Prior to Sacituzumab Govitecan-hziy in Patients With Unresectable Locally Advanced or Metastatic Triple-Negative Breast Cancer Who Received at Least Two Prior Treatments, at Least One in the Metastatic Setting
A Phase 2, Single-Arm, Open-Label Study of Trilaciclib Administered Prior to Sacituzumab Govitecan-hziy in Patients With Unresectable Locally Advanced or Metastatic Triple-Negative Breast Cancer Who Received at Least Two Prior Treatments, at Least One in the Metastatic Setting
Enrollment Status: Terminated
Publish Date: January 29, 2025
Intervention Type: Drug
Study Drugs: Trilaciclib, Sacituzumab Govitecan-hziy
Study Phase: Phase 2
View 9 Less Clinical Trials

259 Total Publications

Prediction of Anthracycline Benefit in Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative Early-Stage Breast Cancer by the MammaPrint 70-Gene Signature for Patients Enrolled in the FLEX Study.
Prediction of Anthracycline Benefit in Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative Early-Stage Breast Cancer by the MammaPrint 70-Gene Signature for Patients Enrolled in the FLEX Study.
Journal: JCO precision oncology
Published: June 24, 2026
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Frequently Asked Questions about Dr. Joyce A. O'shaughnessy

How do I make an appointment with Dr. Joyce A. O'shaughnessy?

You can book an appointment with Dr. Joyce A. O'shaughnessy by calling their office at 214-370-1000. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Joyce A. O'shaughnessy a top-rated expert for Breast Cancer?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Joyce A. O'shaughnessy 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. Joyce A. O'shaughnessy specialize in?

While Dr. Joyce A. O'shaughnessy is a Oncology, they have specific expertise in Breast Cancer, Triple-Negative Breast Cancer, and PIK3CA-Related Overgrowth Spectrum. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Oncology.

Does Dr. Joyce A. O'shaughnessy participate in research or clinical trials?

Yes. Dr. Joyce A. O'shaughnessy has published 259 articles and abstracts on conditions like Breast Cancer. You can view a list of Dr. Joyce A. O'shaughnessy's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Joyce A. O'shaughnessy accept my insurance?

Dr. Joyce A. O'shaughnessy accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 214-370-1000 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.

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