Our Providers
Dr. Gandis G. Mažeika, MD
The founder of Sound Sleep Health, Dr. Mažeika obtained his medical degree at the UC Davis School of Medicine. He completed a joint residency in Psychiatry and Neurology through Harvard Medical School and Duke University Medical Center, followed by a Neurology and Sleep Disorders fellowship at Duke. He is Board Certified in Sleep Medicine, Neurology and Psychiatry.
A regional leader in the field of Sleep Medicine, Dr. Mažeika has over 10 years experience treating sleep-disordered patients. Dedicated to public education about sleep matters, he has appeared on TV and radio spots and frequently speaks to community groups. He has developed proprietary sleep questionnaires and outcomes measurement tools, allowing his staff to deliver the best possible care for patients with sleep disorders.
On a national level, Dr. Mažeika is a Fellow of the American Academy of Sleep Medicine and an active member of the National Sleep Foundation, an organization dedicated to raising public awareness of sleep disorders
Kimberlee Lonergan, Nurse Practitioner, MS ARNP
Kimberlee Lonergan, has over 20 years cumulative experience working with sleep disorders. She obtained her nursing degree at the University of Portland, and worked in Dr. Al Lewy's lab at Oregon Health Sciences University researching circadian rhythm disorders. She graduated from the University of Connecticut ARNP program in 1989, subsequently moving to Seattle and establishing a clinical practice in Sleep Medicine.
Ms. Lonergan lectures and teaches on a range of sleep medicine topics. Her areas of expertise include insomnia and disorders of excessive daytime sleepiness.
Dr. Jane Yumin Xie, MD
Jane Y. Xie (pronounced “she”), MD, joined Sound Sleep Health in 2009. Dr. Xie is Board Certified in Psychiatry and Sleep Medicine. Dr. Xie believes that as a physician, she seeks to use her medical skills and knowledge to comfort and serve her patients.
Dr. Xie completed her residency at the Salem-Roanoke Psychiatry Program at the University of Virginia. She served as a Psychiatrist at the Glenwood Resource Center and as a Psychiatrist and Clinical Assistant Professor at the University of North Dakota. She has an extensive background in research and teaching.
She received her Medical Degree from the Shanghai Second Medical University, China where she graduated #1 in a class of over 600. She has been practicing medicine in the United States since 1999.
Dr. Meredith Broderick, MD
Dr. Broderick obtained her medical degree at the Ohio State University School of Medicine. She completed her residency in Neurology through the University Hospitals of Cleveland and Case Western Reserve University. She completed her Fellowship in Sleep Medicine at Stanford University Sleep Medicine Clinics in Palo Alto, CA.
Dr. Broderick is a Diplomate of the American Board of Psychiatry and Neurology and is Certified in Behavioral Sleep Medicine.
Dr. Broderick has practiced as a Sleep Medicine Physician at Minor & James Medical, in Seattle, WA and as an Assistant Professor, Department of Neurology Adult and Pediatric Sleep Specialist at University Hospitals of Cleveland/Case Western Reserve University, in Cleveland, Ohio.
Recent Papers by Dr. Broderick
