Meet The Staff at the Salem Sleep Medicine Clinic

Dr. Hyong Shim, MD

I was born in Seoul, Korea. I came to the United States with my family when I was 18. I attended The University of Washington School of Medicine from 1988 through 1992, and I completed my residency at Legacy Portland Internal Medicine program in 1995. Although I enjoyed Internal Medicine, chronic sleep deprivation from being on call gradually affected my life. I was often unmotivated and always tired. When I turned 40, I knew I did not want to continue to practice Internal Medicine in the same way anymore. At first I just wanted to know how to achieve better sleep. However, when I was introduced to sleep medicine by Martin C. Johnson II, MD, I realized it was a vast and exciting field.

It was indeed a new world to me. I decided to study sleep medicine exclusively, and that this would be my new specialty. When the American Board of Sleep Medicine offered its first Board exam in November 2007, I took the test and became a Board Certified Sleep Medicine physician. I have been a full-time Sleep Specialist since August, 2008. I love every minute of practicing sleep medicine. When my patients come in feeling fatigued and exhausted, it is exciting to see how much their sleep improves with proper treatments. My motto is “We will give you your life back!”

I am grateful to be married to a truly wonderful wife, and we have two children. In my free time I enjoy singing, occasionally performing solos, and playing table tennis. I gave myself the nickname “The Terminator Shim,” but no one in my table tennis club seems to be intimidated by my nickname. I find this quite annoying.

Meet The Salem Sleep Medicine Team

Our team is comprised of highly trained and experienced sleep medicine professionals. Our techs are Registered  and Licensed Polysomnographic Technologists that have a combined experience of over 20 years in the field.

Many of our techs are PAP therapy users, and have the first hand knowledge needed to help our patients with their treatment. Our office staff ensures that every patient feels welcome and has a positive experience with us.




Maria is our office manager, and is the smiling face you see as you walk through the door. Maria sees first-hand the dramatic difference sleep medicine makes in patients’ lives and is a huge advocate for treating sleep-related disorders. She has a strong passion for helping people and brightens each and every person’s day she comes into contact with.

She has worked in the health care field in Salem for many years and has a strong background in insurance and customer service. Maria always goes the extra mile to help patients with any questions or concerns they may have throughout the process.




Jeremy is a very seasoned RSPGT (Registered Polysomnographic Technologist), LPSGT (Licensed Polysomnographic Technologist) in the state of Oregon, and has worked in the medical field for 17 years, and in sleep medicine for nearly 7 years. He performs and has extensive experience with overnight sleep studies and MSLT (Mean Sleep Latency Test). Jeremy also performs PAP-NAPs for patients who have difficulty tolerating CPAP therapy.



Katie is a Registered Polysomnographic Technologist (RPSGT) and is also licensed in the State of Oregon (LPSGT) to practice sleep medicine. She has primarily been working in Durable Medical Equipment (DME) for the last two years. However, she also works occasional night shifts performing sleep studies for patients. With her wide background knowledge in the world of sleep medicine, she understands both sides of the spectrum; scientific and real life application of implementing CPAP into your life.