Office Hours
Mon & Tues 8am - 6pm || Wed & Thurs 8am - 5pm
Schedule an appointment
503-492-7798

Meet Our Friendly Staff

Dr. Jason I. Yoon, D.M.D

Dr. Yoon completed his undergraduate degree at Loma Linda University and then moved on to completing his dental degree at Oregon Health Sciences University School of Dentistry. In 1993, after graduating from dental school, he worked together with Dr. Park for 23 years. They are both gentle, friendly dentists who strive for excellence in their work. They both enjoy time with family and friends, and outdoor life in the Northwest.

Dr. Grace E. Park, D.M.D

Dr. Park completed her undergraduate degree at Loma Linda University and then moved on to completing her dental degree at Oregon Health Sciences University School of Dentistry. In 1993, after graduating from dental school, she worked together with Dr. Yoon for 23 years. They are both gentle, friendly dentists who strive for excellence in their work. They both enjoy time with family and friends, and outdoor life in the Northwest.

Cheryl Miller

Cheryl is our office receptionist. She has been working in the dental field for over 30 years. She brings a fun and friendly attitude to the practice. She can help you understand your dental insurance and answer questions about your treatment plan. In her spare time Cheryl enjoys watching her grandson, working in her garden and taking road trips to visit all the wonderful places in Oregon.

Janet Derrer

Janet is one of our dental assistants She has been a dental assistant for 27 years She will answer any questions about your dental treatment as well as make sure you’re comfortable in the dental chair. In her spare time she loves spending time with her family, camping, hiking and traveling.

Michele Lanter

Michele is our dental hygienist. She graduated from OHSU with a B.S. in Dental Hygiene and has almost 20 years experience. Michele is very friendly and gentle, striving for excellence with your oral health care needs. In her spare time she enjoys spending time with her three children and husband; camping, boating and enjoying the outdoors.

Shelby Heckman

Shelby is one of our assistant here at Cascade. She attended Concorde career college and started her dental assisting career with us, completing her externship in 2010. She is very sweet and really enjoys getting to know our patients! She is an extremely hard worker and prides herself on making sure our patients have a happy and comforting experience every time! She loves working here at cascade because we are all like a big family and it always feels like home. She is a newlywed as of August 2014 and is so excited to see where her future takes her!