Wynne Chen, MD, is board-certified in internal medicine, pulmonary & critical care medicine, and sleep medicine. He joined Valley’s medical staff in 2006, practicing both in the Critical Care Center at Valley and the Pulmonary and Sleep Disorders Clinic. He now practices exclusively outpatient adult sleep medicine.

Raised on the east coast, Dr. Chen studied at Dartmouth College where he majored in biology, concentrating in molecular genetics and graduating with distinction. He returned home to attend State University of New York at Stonybrook School of Medicine, and later completed his internal medicine residency at Yale-New Haven Hospital in Connecticut. He moved to the west coast to pursue subspecialty fellowship training in pulmonary and critical care medicine, as well as sleep Medicine at Stanford University Medical Center in California. As a postdoctoral fellow, his clinical research interests included the physiology behind sleep disordered breathing/OSAS, and functional neuroimaging in type 1 Narcolepsy. He is a Castle Connolly Top Doctor and Seattle Met Magazine Top Doctor (2015, 2016). He has a strong interest in medical informatics, and outside of work, enjoys music, running and exploring the Puget Sound.

“We now know that common sleep disorders such as obstructive sleep apnea syndrome (OSAS) spares no one, and afflicts the young and old alike, often without classic symptoms such as loud snoring or frank apneas. Indeed, OSAS in children can mimic ADHD, and fatigue and insomnia may herald the onset of sleep-disordered breathing among thin individuals. In diagnosing sleep disorders, I am gratified in helping patients fit the pieces together in the puzzle of symptoms that they often have struggled with for years. In the process, I also appreciate that related discussions about diet and promoting a healthy lifestyle, can further empower them to take greater responsibility for their present and future health. The best part of my job as a sleep physician is having the opportunity to meet interesting people every day and educate them about a vital part of their daily lives that is often overlooked – their sleep.”

Interested in improved health through better sleep? Check out some of Dr. Chen’s favorite sleep and better living resources

Laura Ganhs, PA-C, is a physician assistant in the Pulmonary & Sleep Disorders Clinic. Laura is originally from Michigan and received her Bachelor of Science in medical laboratory sciences in 2001 from Oakland University. Feeling the need for more direct patient care, she returned to school and entered the Physician Assistant Studies program at Wayne State University in Detroit, Michigan. After receiving her master's degree in 2006, she began work as a hospitalist at Henry Ford Macomb Hospital in Clinton Township, Michigan. While vacationing in Seattle, she fell in love with the Northwest and eventually picked up and put down new roots in Seattle in 2009.

Laura loves spending time with her two children and husband, and exploring the beautiful Northwest. She enjoys hiking, gardening, arts and crafts projects, traveling, and spending time with friends and family.

*Ms. Ganhs was voted as a Top Doctor in Seattle Met Magazine in 2019.

Richard Kim, MD, has a strong interest in providing high value care to his patients. He is board-certified in Pulmonary and Critical Care Medicine. He strives to listen carefully to each patient and help craft a treatment plan that meets their individual needs.

Dr. Kim was born and raised in Southern California. He did his undergraduate studies at Harvard University, where he was a History of Science major. He then completed his medical school at University of California, San Francisco. He moved to Seattle in 2006 for his internship and residency training at the University of Washington, where he won awards for excellence in resident teaching and for leadership. He stayed at the University of Washington for his pulmonary and critical care fellowship training.

Dr. Kim is married, with three children. In his spare time, he enjoys playing the violin, reading, photography, and anything involving the outdoors

Dr. Mulligan is a UW professor of cardiothoracic surgery and the director of the Lung Transplant Program and the Advanced Lung Disease Surgery Program. He is clinically busy in lung transplantation and lung volume reduction surgery (LVRS). He also is the surgeon in the Pacific Northwest who performs pulmonary endarterectomies for chronic pulmonary embolic disease.

In addition, Dr. Mulligan directs the Minimally Invasive Thoracic Surgery Program. He performs a range of lung cancer resections regularly. He is considered a national expert in video-assisted thoracic surgery (VATS) lobectomy and leads regional and national courses on the subject. He also has considerable experience in the management of esophageal cancer.

Patient Care Philosophy: Do your best for every patient. Treat them the way you would like yourself or your family to be treated. Do everything you can to improve their lives.

Scope Of Care: Lung cancer, esophageal cancer, benign and malignant thoracic diseases and end-stage lung disease.

Research Interests
He has won local and national teaching awards and runs an NIH-funded laboratory. His areas of scientific investigation include the mechanisms of acute lung injury following lung transplantation and the regulation of tolerance in long-term lung graft acceptance.

Teaching Interests
He has been the recipient of the John K. Stevenson Award for excellence in resident education. Most recently, he won the McGoon Award, which is given to a cardiothoracic surgeon who exemplifies outstanding teaching and mentorship in the United States.

Other Interests

Personal: family, water skiing, snow skiing, and fitness

Clinical: Cardiovascular surgery, lung and heart-lung transplantation, lung-volume reduction surgery, pulmonary thrombo-endarterectomy, and benign and malignant lung and esophageal disease

American Board of Surgery

Board Certified in General Surgery since 2006

Board Certified in Cardiac and Thoracic Surgery since 2008

William Park, MD, is board-certified in pulmonary diseases, critical care medicine, and sleep medicine. His clinical interests include the management of COPD, lung cancer, interstitial lung disease, asthma, sarcoidosis and all aspects of sleep disorder medicine.

Dr. Park is originally from Michigan and graduated from Cornell University as a chemical engineer. After a change in career direction, he returned to Michigan to attend University of Michigan Medical School. From there he did his residency in internal medicine at Boston University and Boston City Hospital. He completed his fellowship in pulmonary and critical care medicine at University of Washington.

At Valley Medical Center, Dr. Park has been the co-medical director of the Sleep Center, medical director for Respiratory Care, co-medical director of the Critical Care Unit, and is a member of the Executive Committee. He has also been listed in "Seattle's Best Doctors."