Helen Heng-Shan Moon, MD
I speak: English
My gender: Female
Where I practice
About me
I am a board-certified hematologist and medical oncologist specializing in immunotherapy at Kaiser Permanente’s Riverside Medical Center. I’m a lifelong Trojan, having completed my entire medical education at USC. Fight on!
Biography
I am proud to serve our community as a hematologist and medical oncologist at Kaiser Permanente in Riverside. My clinical passion lies in delivering innovative care that is tailored to each member’s needs and is based on evidence and current research. I currently serve as the director of our Genitourinary (GU), and Melanoma Research program. It is my goal to bring advanced immunotherapy treatments to members with melanoma and other challenging cancers. I feel deeply privileged to work alongside a dedicated team that shares a commitment to excellence, compassion, and continuous learning.
About my practice
I specialize in the treatment of genitourinary malignancies and melanoma, and care of research patients. I also care for members with a wide range of hematologic and solid tumor diagnoses. I focus on combining precision medicine with personalized support throughout the cancer journey — from diagnosis to survivorship. Our multidisciplinary approach ensures that each member benefits from the collective expertise of physicians, nurses, pharmacists, social workers, and supportive care specialists.
Cancer Subspecialty Focus
My clinical expertise includes the treatment of skin cancers including melanoma, and genitourinary cancers such as bladder, kidney, prostate, and testicular cancers.
Collaboration on Multidisciplinary Teams
I completed my time as the co-lead for our national GU oncology team in 2024. I participate in several multidisciplinary teams including GU, Cutaneous Melanoma, Molecular, and Emerging Therapeutics.
Research and Clinical Trials Involvement
I am involved in several prestigious National Cancer Institute–supported research networks. I am an executive member of SWOG’s GU committee and serve on various disease committees. I also serve on the National Cancer Institute’s Prostate Cancer Task Force. I lead Kaiser Permanente’s GU and melanoma trials and also serve as the associate director for the cancer trials program.
How I thrive
Outside of medicine, I enjoy spending time with my 2 daughters. We are a family of artists and book readers, and you’ll find us learning new TikTok dances, painting a new piece of art for an expo, or deeply immersed in a book.
My office
Languages spoken by medical staff
Help is available in your language. Learn more.
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
Riverside Medical Center
Contact information
- Appointments/information
- 1-833-574-2273 (toll free)
- Information
- 1-866-735-2922 (toll-free TTY for the hearing/speech impaired)
Notifications
- Provider offers telehealth services.
My training, certifications and licensing
Medical school
Keck School of Medicine of the University of Southern CaliforniaBoard certification
Medical Oncology
American Board of Internal MedicineMedical training
Fellowship
Hematology and Oncology
University of Southern California School of MedicineInternship
Internal Medicine
Los Angeles County/University of Southern CaliforniaResidency
Internal Medicine
Los Angeles County/University of Southern CaliforniaJoined Permanente Medical Group
2005Active license information
License number
A91007License type
Physician and SurgeonLicense issuing state
CALIFORNIANational Provider Identifier (NPI)
1255480075Cultural Competency Training (CCT)
CompletedMy hospitals
All Kaiser Permanente physicians and podiatrists have admitting privileges or the ability to refer patients to our plan hospitals. Admitting privileges of other providers may vary by plan and facility. Contact your plan administrator for details.
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Setting the standard: Measuring care quality in our hospitals(PDF)
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This page was last updated on: 12/04/2025