Despite their best efforts, UW Medicine has not yet been able to reach fair and sustainable agreements with Aetna that ensure continued access to care and are in the best interests of patients. Effective June 1, 2025, UW Medicine’s contracts with Aetna for Medicare Advantage and Commercial services have expired and we are now out of network with Aetna. Learn more about what this means for you and what you should do next.
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Valley Medical Group Provider
Provider Bio
Tess Lang, MD, enjoys caring for patients of all ages and backgrounds. Her goal is to empower people to make informed decisions on their own health that are aligned with their values. Her interests in medicine include preventive lifestyle medicine, supporting new parents and their children, nutrition, and women’s health.
Dr. Lang has a degree in neurobiology from University of Washington and a medical degree from University of California, San Francisco. She completed her family medicine residency here at Valley Medical Center and worked at Kaiser as a full spectrum family physician with obstetrics before relocating to the Eastside. She is thrilled to return to Valley Medical Center and practice family medicine at the Newcastle clinic.
Outside of the clinic, Dr. Lang is enjoying family time with her two daughters and husband while exploring the Northwest. She enjoys cooking plant based foods, writing, book club, playing the violin, triathlons, tennis, and traveling.
Languages Spoken
Scheduling & Locations
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.
Newcastle Clinic - Primary Care
Call 425.690.3455
Fax 425.690.9455
Insurance Information
Billing & Financial Assistance