Dr. Ryan McNamara


Dr. McNamara grew up in Coeur d’Alene, Idaho where his father and brother currently practice general dentistry.  After completing residency in Texas he and his wife decided to return to the Pacific Northwest where they met during dental school at UW.  They enjoy the scenery, people, and lifestyle it has to offer.

Dr. McNamara enjoys spending time with his family and friends especially his wife Donna.  His free time usually involves outdoor activities including hiking, biking, and golfing in the summer and skiing and snowboarding in the winter.  He also enjoys scuba diving when traveling and cooking and reading when spending time at home.

Dr. Allen Colic

Dr. Allen Colic

Vice President

Dr. Colic grew up in Canada before attending Case School of Dental Medicine in Cleveland, Ohio where he earned his D.D.S. degree. He continued his training at Case in the Department of Endodontics where he received his certificate and M.S.D. in endodontics. Shortly after the residency he relocated to Seattle where he joined Endodontics Northwest in 2005.

Dr. Colic is currently an Associate Clinical Professor at the University of Washington.

Dr. Kristine Yoon Lin

Dr. Kristine Yoon Lin


Kristine Yoon Lin, DDS, MS graduated with her Masters in Oral Biology and Endodontics at the University of Washington. Dr. Lin also earned another Masters of Science degree in Oral Biology from Northwestern University and completed her dental degree at the University of North Carolina at Chapel Hill in 1996. She finished her undergraduate Bachelor of Science degree from Cornell University in 1992.

Dr. Lin has been providing endodontic services in Seattle since 2001.

Dr. Lewina Youn


Dr. Lewina Youn is a certified endodontist. She graduated from Simon Fraser University in British Columbia, Canada with B.S. in Biology prior to obtaining her Doctor of Dental Surgery Degree from University of Southern California, School of Dentistry. At USC, Dr. Youn received numerous prestigious awards for excellence in dentistry. Upon graduation, she was inducted into the Omicron Kappa Upsilon Honor Society (selected from the top 10% of the graduating class).

Dr. Youn also worked as a general dentist in Pasadena, California for 2 years before returning to the University of Southern California to complete her advanced training in Endodontics. While attending the endodontic residency, Dr. Youn received extensive training in both non-surgical and surgical endodontic procedures.
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