Katherine E. Tierney, MD
I speak: English
My gender: Female
Where I practice
About me
I was born and raised in Los Angeles. As an undergraduate, I studied literature and natural sciences, then completed my medical education and training at the University of Southern California in Los Angeles. While at L.A. County Medical Center I chose to pursue a career in women's health and, specifically, training in women's cancer care. I am dedicated to providing top-of-the-line care to my patients, and I believe Kaiser Permanente is the institution that allows me to do so best.
About my practice
Gynecologic oncology is unique in that one doctor provides both the surgical and medical therapy for a patient with cancer. I treat all gynecologic cancers including, but not limited to, those of the uterus, ovaries, and cervix. I specialize in complex pelvic surgery and perform minimally invasive surgery whenever possible. In particular, I am interested in precancerous lesions of the female genital tract, including the cervix and uterus, and have published research on this topic. I am also interested in surgery to address genetic abnormalities such as BRCA 1 and 2 and Lynch syndrome. Ultimately, I strive to provide comprehensive and innovative care to my patients. I practice individualized patient care to ensure that all of my patients receive the best treatment options available and that they feel cared for in the process.
How I thrive
When I’m not working, I enjoy spending time with my husband, 2 daughters, and my extended family. I take great pleasure in watching my children learn and grow. I continue to be an avid reader of both medical and non-medical texts and love listening to live music with friends.
My office
Languages spoken by medical staff
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My provider type
Physicians and SurgeonsMedical groups, plans, and locations
Southern California Permanente Medical Group
Plans accepted
- Exclusive Provider Organization (EPO)
- HMO
- Medi-Cal Managed Care
- Point-of-Service Plan (POS)
- Senior Advantage
Baldwin Park Medical Center
Contact information
- Appointments
- 1-833-574-2273 (toll free)
- California Relay Service
- 711 (TTY for the hearing/speech impaired)
- Mandarin Chinese Appointment Line/Cancellations
- 1-888-886-1398 (toll free)
Notifications
- Provider offers telehealth services.
My training, certifications and licensing
Medical school
Keck School of Medicine of the University of Southern CaliforniaBoard certification
Gynecologic Oncology
American Board of Obstetrics and GynecologyObstetrics and Gynecology
American Board of Obstetrics and GynecologyMedical training
Chief Resident
Obstetrics and Gynecology
Los Angeles County/University of Southern CaliforniaFellowship
Gynecologic Oncology
Los Angeles County/University of Southern CaliforniaInternship
Obstetrics and Gynecology
Los Angeles County/University of Southern CaliforniaResidency
Obstetrics and Gynecology
Los Angeles County/University of Southern CaliforniaJoined Permanente Medical Group
2012Active license information
License number
A110278License type
Physician and SurgeonLicense issuing state
CALIFORNIANational Provider Identifier (NPI)
1669702502Cultural Competency Training (CCT)
PendingMy hospitals
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This page was last updated on: 05/29/2026