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Our Providers

Jon W. Alke, MD

Dr. Alke is a graduate of Stanford University and has his medical degree from the University of Washington. He completed his residency in Emergency Medicine at Stanford Kaiser. He worked at Modesto Memorial in California and is board certified in Emergency Medicine. Other professional experience includes assisting in the instruction of pediatric curriculum to inaugurate a class of Indian paramedic students in Hyderabad, India. Dr. Alke joined Emergency Associates of Yakima in 2011. He has volunteered his time at a monthly University of Washington free clinic. He enjoys all outdoor activities and has a passion for traveling, hiking, running and Texas Hold 'em.

Marty Brueggemann, MD

Dr. Brueggemann is the chairman of the Emergency Department. He grew up near Minneapolis, MN, and moved to Washington State in 1990. After completing his undergraduate work at Western Washington University, Dr. Brueggemann went back to the Midwest where he graduated from the Medical College of Wisconsin in 2001. He finished his residency in Emergency Medicine at Hennepin County Medical Center in Minneapolis, MN, in 2004 before returning to Washington State. Outside of work, Dr. Brueggemann serves on the Board of Directors of the Yakima Greenway Foundation, which maintains a park and trail system in the Yakima area. He started a program designed to combat childhood obesity through his work on the Greenway. Marty's interests are mainly outdoors where he has a passion for fly fishing in addition to enjoying skiing, scuba diving, and hunting. Marty enjoys training for endurance competitions and is an Ironman tri-athlete, competing in the 2011 Ironman Florida event. Dr. Brueggemann is married to his wife, Liz, and has two children, Brendan and Annalise.

Scott Chapman, MD

Dr. Chapman grew up in Provo, Utah. He graduated from Utah State University. Medical school took him to the Netherland Antilles where he graduated from The University of Sint Eustatius School of Medicine. He completed his Emergency Medicine residency training at the University of Toledo in, of all places, Toledo Ohio. He joined EAY in 2013. He is happily married to Tiffany and has 3 wonderful children. When is isn't working in the ED he enjoys woodworking (he still has all 10 of his fingers), hiking and finding grand adventures to take his children on. He is active in his church and enjoys working with the young men in his congregation.

Craig W. Edgar, MD

After completing medical school at the University of Cincinnati in 1999, Dr. Edgar went on to finish his residency at York Hospital - Penn State Emergency Medicine in 2002. After residency, Dr. Edgar went on to work for Western North Carolina Emergency Medicine and acquired a strong interest in Wilderness Medicine. His hobbies include mountain biking, whitewater kayaking, skiing and snowboarding.

Thomas L. Eglin, MD

After completing medical school at Emory University in Atlanta Georgia, Dr. Eglin returned to the northwest to complete an internship at University of Washington hospitals in Seattle Washington. He returned to Atlanta to fulfill a National Health Service obligation working full time in the ER at Grady Hospital from 1982 to 1986. After a residency in Emergency Medicine at Emory, Dr. Eglin worked at a Level One trauma center in downtown Atlanta for five years before returning home to Yakima in 1992 to practice Emergency Medicine. Dr. Eglin is the former president of the Emergency Associates of Yakima executive committee. He splits his time between working in the Emergency Department and Teaching at Pacific Northwest University of Health Sciences.

Rachel Hampton, MD

Dr. Hampton graduated from Wheaton College of Illinois and went on to medical school at Case Western Reserve University School of Medicine in Cleveland Ohio. She completed her Residency at the Hennepin County Medical Center in Minneapolis, Minnesota. Although Dr. Hampton studied in several states, she grew up in Eastern Oregon, and was eager to return to the Pacific Northwest to be closer to her huge and diverse extended family. Dr. Hampton joined Emergency Associates of Yakima in 2014. She decided to practice emergency medicine because it is one area where everyone has full access to care. Dr. Hampton believes everyone is entitled to high quality, equitable, compassionate emergency medicine, and wants her patients in the emergency room to feel understood and cared for. Dr. Hampton became Board Certified in Emergency Medicine, and has a passion for teaching ultrasound classes occasionally at the local Pacific Northwest University of Health Sciences in Yakima. With her return to the Pacific Northwest, Dr. Hampton has joined the 12's in becoming a true Seattle Seahawks fanatic. Dr. Hampton enjoys her time off work sipping coffee, reading a great book, or going for a hike.

Joan K. Knight, MD

Dr. Knight graduated from the University of Washington, School of Medicine in 1994. She completed a 4 year residency in Emergency Medicine at the Medical College of Wisconsin in Milwaukee. Prior to returning to her home town of Yakima, Dr. Knight spent several years attending patients at Kennewick General Hospital. She has been with Emergency Associates of Yakima since January of 2004. Outside of medicine, Dr. Knight spends time with her husband and two children managing a fruit orchard. They are avid skiers.

Mark W. Livingston, MD

Dr. Livingston is an ABEM certified graduate of the University of Nevada School Of Medicine. After completing his residency in Emergency Medicine at Michigan State/Kalamazoo Center for Medical Studies, he looked to move back to the west. He and his family were drawn to Yakima for many reasons. Yakima's central location has afforded unlimited opportunities for his outside interests. He has developed an affinity for year round ski mountaineering; water skiing, hiking and cycling in the summer; and downhill and backcountry skiing in the winter. The ability to practice community emergency medicine in a busy, diverse, and steadily growing department has ensured career-long professional growth. Dr. Livingston serves on the executive committee for Emergency of Associates of Yakima.

Erik C. Miller, MD

Dr. Miller is Medical Director of the Emergency Department at Yakima Valley Memorial Hospital. He is a native of Yakima and attended the University Of Washington School Of Medicine, obtaining his MD degree in 1991. He completed a residency in Emergency Medicine at UC Davis Sacramento in 1994 and was an Assistant Professor of Emergency Medicine for two years there, following completion of his residency. He has worked in the Emergency Department at Memorial since moving back to Yakima in 1996. His leisure activities include golf, mountain biking, skiing and wine collecting. He has a strong interest in ED process and patient flow management and improvement.

R. Brian Padilla, MD

Dr. Padilla earned his M.D. from the University of Utah, School of Medicine in 1998. He then completed his Emergency Medicine Residency at York Hospital/Pennsylvania State University in 2001. He has been at Memorial Hospital since 2001. Dr. Padilla is quite active in the hospital and the community. He is a past-president of the medical staff and now serves as a trustee on the Yakima Valley Memorial Hospital board. He enjoys mountain biking, skiing, and golfing.

Wyatt Rivas, MD

Dr. Rivas is one of the newest members of Emergency Associates of Yakima, joining in 2011. He completed medical school at the University of Utah and his residency at Baystate Medical Center-Tufts in Springfield, Massachusetts. Dr. Rivas is married to a pediatrician and the two of them, along with their German shepherd are all new to Washington State. They spend their free time exploring the terrain and getting to know the people and activities around Yakima.

Christopher R. Schmelzer, MD

Dr. Schmelzer graduated from the Medical College of Wisconsin in 2001. In 2005, he completed a four year residency in Emergency Medicine at the University of Michigan in Ann Arbor, Michigan. Dr. Schmelzer served on the faculty in the residency program at the University of Arizona in Tucson from 2005 to 2007 before joining Emergency Associates of Yakima at Yakima Valley Memorial Hospital in 2007. He is board-certified in Emergency Medicine. Prior to attending medical school, Dr. Schmelzer worked as a paramedic and firefighter/pump operator. He serves as a United States Air Force Flight Surgeon and is also a private pilot. Dr. Schmelzer serves on the Emergency Associates of Yakima executive committee as its Managing Partner.

Craig Southwell, MD

Dr. Southwell earned his M.D. degree at McGill University in Montréal in 1980. He completed a rotating internship at one of the McGill teaching hospitals and then worked in a rural ED in northern Québec for four years. He completed his emergency medicine residency at the University Hospital in Jacksonville, Florida in 1987. During the next three years he worked as a full-time attending physician at the emergency medicine residency training program at Chedooke-McMaster Hospital in Hamilton, Ontario. Dr. Southwell subsequently worked as a full-time emergency physician at several hospitals in western Washington and part-time in occupational and environmental medicine until 2001. For the next five years he was the full-time director of the occupational medicine clinic and director of employee health at St. Peter's hospital in Olympia, Washington. Dr. Southwell has worked as a civilian contractor providing emergency medicine services to the United States Air Force and Army. He has specialized training in assessing the health impacts of indoor air quality issues on employees working in large commercial structures. Dr. Southwell is board certified in emergency medicine and is board eligible in occupational and environmental medicine. His personal interests include bicycling, running, skiing and music.

John B. Tanner, MD

William G. Wilson, MD

Dr. Wilson is from the Yakima area. He received an M.D., C.M. degree from McGill University Faculty of Medicine in Montreal, Quebec, in 1986, and then did a Preliminary Surgery Residency at University of Washington in Seattle. He has been an Attending Emergency Physician at Yakima Valley Memorial Hospital since August 1988, serving as department chairman 1993-1994. Prior to medical school, he received a Master of Science Degree in Biology from Western Washington University, where his thesis research was in marine invertebrate zoology. His undergraduate colleges included Yakima Valley Community College and University of Puget Sound. Dr. Wilson is married and enjoys outdoor activities throughout Washington State, including fishing, boating, bird hunting, trap shooting, and SCUBA, as well as outdoor and underwater photography.

Heather Demarais, ARNP

Ms. Desmarais is a Yakima native. She received her bachelor's degree magna cum laude in nursing from Washington State University in 2001. Shortly thereafter, she began her career as an RN at Yakima Valley Memorial Hospital Emergency Department and achieved past and current certifications in Emergency Nursing, Pediatric Emergency Nursing, and Pain Management. She participated in leadership and preceptor programs, as well as multiple process improvement projects while there. She attained her master's degree in nursing from Gonzaga University in 2014 and enthusiastically brings her practice as an ARNP to Emergency Associates of Yakima. Ms. Desmarais relaxes by hiking and through meditation.

KC Ely, ARNP

Ms. Ely graduated from Washington State University with a master of nursing degree in 2010. She joined Emergency Associates of Yakima in 2011 with more than 10 years of nursing experience in the emergency department at Memorial Hospital. She takes pride in providing evidence based care with compassion and respect for her patients. She has a wonderful husband, four children and nine grandchildren.

Karalee Knight, ARNP

Ms. Knight received her BSN from Loma Linda University and her master of nursing degree from Gonzaga University. She has worked in a variety of settings as an RN including the emergency department, telemetry, medical/surgical and pediatric floors, but spent the majority of her time in orthopedics/neurology. She has been working with Emergency Associates of Yakima since 2013. Ms. Knight is board-certified in American Academy of Nurse Practitioners and is a member of the Yakima Valley Nurse Practitioner Association. She has enjoyed medical mission trips and has spent time volunteering at the Union Gospel Mission Medical Clinic. She is a strong believer in preventative care and enjoys the fast pace and diversity of the emergency department environment. She enjoys year-round outdoor activities including snowboarding, hiking, running and water-skiing, as well as traveling and spending time with her husband and their daughter.

Jennifer Lewis, ARNP

Ms. Lewis graduated with her BNS from Boise State University, and went on to get her MSN from Gonzaga University. She has worked as an RN in Cardiothoracic and Medical ICU as well as in the Emergency Department. She has worked as an ARNP in Primary Care, and was excited to return to the Emergency Care setting with Emergency Associates of Yakima in 2014. Ms. Lewis is board-certified in American Academy of Nurse Practitioners and has a special interest in medical ethics, and palliative and hospice care for patients. She strives to provide compassionate, evidence-based care to all patients with a holistic and personal approach. When Ms. Lewis is not at work with patients, she loves to run, hike and bike as often as she can. Ms. Lewis' first love in outdoor recreation is surfing which she did regularly growing up in Southern California. She has since adopted paddle boarding as a close second as it lends itself to the Pacific Northwest waters well. Her dogs really are her best friends and accompany her anywhere they are allowed, but Ms. Lewis favorite people in the world are her husband, Scott and her children, Nick and Clare.

Kim Rodgers, ARNP

Kim Rodgers graduated from Georgetown University and went on to receive a Masters in Environmental Policy from the University of Michigan in Ann Arbor. She then also achieved her Master's in Nursing from Vanderbilt University with a specialization in Family Practice. Ms. Rodgers worked as a Family Nurse Practitioner at Yakima Valley Farm Workers Clinic in Toppenish for 3 and a half years. She also served as an RN in the Tennessee Prison for Women in Nashville, TN for a year. While Ms. Rodgers is newer in the field of medicine, she is no stranger in the field of environmental health or community development where she spent the first 10 years of her career. Ms. Rodgers likes to give back to her community. She spent time volunteering in the Knoxville Free Clinic, and she participated in Remote Area Medicine missions throughout Tennessee. Now she volunteers with the White Pass Nordic Center Ski Patrol. When Ms. Rodgers is not preoccupied with working and volunteering in her community, she is still keeping busy exercising by running, cycling, and doing yoga.

Amy Root, ARNP

Rachel Worley, ARNP

Ms. Worley graduated from Southwestern Adventist University as an RN, and went on to work in this capacity for 5 years in an intensive care unit, and 2 years in postpartum/labor and delivery specialty. Ms. Worley decided to pursue her masters with Regis University. Upon receiving her ARNP, she became board certified in Family Medicine, and worked for 6 years in Family Practice. Ms. Worley joined Emergency Associates of Yakima in 2015. Ms. Worley attempts to create a partnership with her patients by working together to achieve common goals through both preventative care and wellness lifestyle changes, and treatment plans for the acute or chronic conditions. When Ms. Worley is not busy in the Emergency Department, she enjoys being outdoors camping, hiking and fishing.

Philip R. Young, ARNP

Mr. Young is a homegrown product of Washington State's educational offerings. After completing his Bachelors of Nursing at Washington State University (WSU), he worked eight years in Memorial Hospital's ER. He taught undergraduate nursing and developed Memorial's nurse residency program while completing his Masters of Nursing through WSU. He is certified as a nurse practitioner through the American Academy of Nurse Practitioners and has worked in this capacity in the ER since 2008.