We are pleased to announce that a new agreement has been reached with Aetna. This allows Valley to continue to be an in-network provider for Aetna-insured patients and will cover services provided since previous contracts ended June 1, 2025. We understand how important it is for our patients to retain in-network access to the doctors, programs, and expert care teams they know and trust. Thank you for your patience throughout this process.
Louise Sin, MSN, RN, ARNP, OCN, CCRN, AGACNP-BC, ACNPC-AG, is an advanced registered nurse practitioner (ARNP) with a focus on oncology and adult gerontology acute care. She holds certifications as an oncology certified nurse (OCN) and a critical care registered nurse (CCRN), providing care to patients with cancer, critical illnesses, and other acute conditions. Louise earned her Bachelor and Master of Nursing degrees from The Chinese University of Hong Kong and completed a post-master's certificate in adult gerontology acute care nurse practitioner at University of Texas, Health Science Center in Houston, Texas. Her clinical training includes experience at institutions such as MD Anderson Cancer Center at Houston and UC Davis Health in Sacramento. Fluent in Cantonese, she effectively communicates with a diverse range of patients.
In addition to her clinical practice, Louise was a clinical instructor at the Tung Wah Group of Hospitals Community Colleges in Hong Kong and a member of the California Association for Nurse Practitioners, the American Association of Critical Care Nurses and the Advanced Practitioner Society for Hematology and Oncology. Outside of work, she enjoys cooking, traveling, playing ping pong, and spending time with her kittens. She believes in continuous learning to provide the best care for her patients.
This provider works at the location(s) listed below. If you haven’t had an appointment with this provider before, please look near the provider’s photo above to make sure they are accepting new patients. Telehealth appointments are available for some conditions. Please call the clinic to learn more about telehealth options.