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Dr. Kass makes it her highest priority to provide patients with the most advanced diagnostic technology and protocols from conventional medicine in combination with the cutting edge diagnostic tools and treatments from the world of age management and functional medicine. Her commitment to finding the root cause of illness ensures effective and integrative treatments with sustainable results Dr. Kass treats a broad range of acute and chronic conditions seen in family practice however she specializes in age management, male and female hormone health and sexual function and wellness. Dr. Kass currently practices in Bellevue, WA SageMED 425-679-6056 Kirkland, WA Waterfront Wellness 425-889-9101

Dr. Tianna Tsitsis is a triple board certified physician who has a special interest in skin aesthetics. A native of Glenview, Illinois, she attended Pennsylvania State University before earning her Medical Degree at Thomas Jefferson Medical College in Philadelphia, Pennsylvania. Returning to Illinois, she completed her residency at the McGaw Center of Northwestern University before moving to the Skagit Valley in 1998. A practicing physician in the area for nearly 20 years, she is committed to serving the people and improving the services in the local community. When she is not working, Dr. Tsitsis enjoys spending time with her husband and four children. An avid fitness enthusiast, her hobbies include skiing, running, swimming, and biking.