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Meet the Doctors

Dr. Christopher Adams at Peak Endodontics in Covington, WA

Dr. Christopher Maguire-Adams


Dr. Christopher Maguire-Adams graduated Magna Cum Laude from Temple University’s Kornberg School of Dentistry in 2013. He completed his residency at Temple University as Chief Resident in 2015. Research compiled during his residency went on to be presented at the annual American Association of Endodontics. After school he returned to the Pacific Northwest with his family in 2015. He is the father of two young children, Abigail and Porter. His wife, Tiffany, is an Issaquah local and the daughter of Dr. Andrew Johnson, DDS. Though he was raised all over the east coast he and his family decided to put down roots here in the Puget Sound area.

In 2017 Dr. Maguire-Adams took over his father-in-law’s practice, Johnson Endodontics, and Peak Endodontics was established. His time is split between our two Peak Endodontics locations. One day a week he works at the University of Washington as an Affiliate Associate Faculty member teaching predoctoral student endodontics. For the past three years he’s volunteered at Seattle King County Clinic performing procedures at no cost for the local underserved and at-risk population. It is a program he takes great pride in.

He works hard to further his education and stay up to date in the latest and greatest of endodontic technology. Currently, he is the president of John Smith Study Club and attends two other study clubs. He is also a member of the American Association of Endodontics (AAE).

Dr. Maguire-Adams considers patient care to be of the utmost importance. At Peak Endodontics we do our best to see patients as quickly as possible and while with us to receive the highest level of care. He looks forward to this new start in the Pacific Northwest and growing and expanding Peak Endodontics.

Go Mariners.

Healthgrades Profile

Dr. Andrew Johnson at Peak Endodontics in Covington, WA

Dr. Andrew Johnson


Dr. Andrew Johnson attended the University of Nebraska, Medical Center, College of Dentistry in Lincoln, Nebraska from 1986-1990. In August of 1990 he began his specialty training in Endodontics at the University of Illinois in Chicago. He received his Endodontic degree in May 1992. In July of 1992 he opened his Endodontic practice, Andrew M. Johnson DDS Endodontics, in Renton, Washington.

He has kept his skills up to date by completing many continuing education courses each year throughout his career. He attends a number of study clubs, specifically John Smith and South Shore. He is a member of the American Association of Endodontics, American Dental Association and has applied to the American Board of Endodontics. Dr. Johnson is an Endodontist who enjoys educating his patients as well as treating them.

His most satisfying aspect of the practice is treating and caring for his patients. He likes to put himself in the patient’s position and treat them as he would himself, which is how he conducts all aspects of his practice. Making all patients comfortable, getting them out of pain and creating lifelong relationships is his goal for his practice.

Dr. Johnson is married with three children and two grandchildren. His son in law, Dr. Maguire-Adams, recently took over the practice and Peak Endodontics was established. His hobbies include golf and basketball.

He is thankful for his practice over the years and excited to expand and develop great relationships with many patients and doctors in the Renton/Bellevue area.

Healthgrades Profile

Dr. Nikhil Malhan at Peak Endodontics in Covington, WA

Dr. Nikhil Malhan


Dr. Nikhil Malhan grew up in Richland, WA. before attending Washington State University, where he received his Undergraduate degree. He then attended Boston University where he received his Doctor of Dental Medicine in 2018. Following his degree in dentistry he returned to the west coast where he pursued an endodontic certification from the University of the Pacific in California. Upon completion of his academic career, Dr. Malhan moved back to his home state of Washington to begin practicing in endodontics.

Dr. Malhan is motivated to continue his education through various local study clubs and networking opportunities. He is a proud member of the American Association of Endodontics and American Board of Endodontics Certified. Dr. Malhan is eager to provide the highest level of patient care for his patient’s. As well as coordinating the best long term treatment plans with patients and general dentists. When not in the office, he enjoys traveling, swimming, cooking, and discovering new restaurants.

Dr. James Cheng-I Lin at Peak Endodontics in Covington, WA

Dr. James Cheng-I Lin


Dr. James Cheng-I Lin attended both Taipei Medical University in Taiwan and Hiroshima University in Japan. After obtaining his DDS degree in 2009 he joined the Taiwanese Navy and served as a dental officer. Upon honorable discharge, he furthered his clinical training in both general practice and endodontic residencies at TMU medical center. Dr. Lin then came to the USA and received his endodontic certificate from Columbia University in the city of New York in 2014. After practicing at a private practice In Houston, Texas for 4 years, Dr. Lin moved to the Pacific Northwest in 2018.

Dr. Lin has lectured internationally on the topics of dental education in endodontics. He is an active member of American Association of Endodontists, American Dental Association and Washington State dental association. He continuously advancing his techniques and education by attending various of educational courses.

Dr. Lin makes sure all his patients are provided with the highest standard of care. He believes that all treatments should be done in a painless and efficient fashion. Patients’ wellbeing and satisfaction is his number one priority.

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27331 172nd Ave. SE, Suite 114
Covington, WA 98042

Phone: 425-358-9033
Fax: 253-234-8427

Federal Way

32114 1st Ave. S, Suite 101
Federal Way, WA 98003

Phone: 253-952-3636
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Peak Endodontics, 27331 172nd Ave. SE Suite 114, Covington, WA 98042 ~ 425-358-9033 ~ ~ 6/11/2024 ~ Related Phrases: Endodontist Covington WA ~