Dentist in Sparks, MD

All our professionals at North County Dental Associates maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in dentistry.



Dr. John Kim

Dr. Kim has been a lifelong resident of Baltimore County.  Graduate of St. Paul’s School ’92, Loyola College ’97, and Baltimore College of Dental Surgery, University of Maryland Dental School ’01.  Upon completion of dental school, Dr. Kim completed a general practice residency at Christiana Care Health Services in Wilmington, DE.  Dr. Kim also completed his training in dental implants at the Misch Implant Institute with a fellowship in the International Congress of Oral Implantologists.

Formally a clinical instructor of restorative and general dentistry at the University of Maryland Dental School, Dr. Kim spends his workweek in private practice.  His free time is spent enjoying the outdoors with his young family.





Summer Kim – Practice Manager

Summer is the practice manager and John’s wife. She has been working with John since 2010. She started out as an Orthodontic Assistant for 5 years and then met John in 2007.  They were married in 2009 and had their first daughter. It was then that she made the decision to leave orthodontics and come manage the practice. Their daughter Ava was very much a part of the practice in the beginning as well. For a year she was here with them twice a week and the patients have watched her grow up.

Summer says “I have not only seen our office grow but our patients and their families as well. What I enjoy most is making them a part of our family. We have an awesome staff and take pride in fulfilling our patient’s dental needs. John is a caring person and excellent at what he does, he makes our patients feel comfortable and makes people SMILE.”

Summer enjoys spending her time outside of work with their two children Ava and Ryan and their dogs Brie and Pippi.  She tries to get in some family time any chance she gets!


Marissa Thanner - Patient Care Coordinator

Marissa joined our team in January 2018. She has a dedicated career in customer service.  Marissa has worn many hats over the years which helps her understand what is best for our patients.  She has experience as a cosmetologist, customer care banker, stay at home mom and now our full time patient care coordinator.  She takes prode in helping, caring and making sure that every encounter with our office is pleasant and the best you have ever had at the dentist. Marissa has a loving husband and a beautiful daughter. 

Marissa says, " Dr. Kim and Summer are family, Summer and I are childhood friends, and I am so happy to join this wonderful team." "Dr Kim takes pride in his work and always puts his patients needs first."





Tawney Linko - Patient Care Coordinator 

Tawney is a part time employee at North County Dental Associates. She has been an employee since 2012. She aspires to make every patient feel at home when they walk through the door. She has also enjoyed all the personal relationships she has developed with our patients. Tawney’s goal is to make every experience at Dr. Kim’s, whether on the phone or in the office, one of the best dental experiences they have had. 

 Currently Tawney is a part-time student at Carroll Community College where she is pursuing a career in nursing. Tawney has been a Volunteer Firefighter and EMT for three years now at Cockeysville Volunteer Fire Company. She has grew up in the Hereford Zone and received her high school diploma at Hereford High school. Tawney Says, “Dr. Kim and his wife Summer treat me as a part of their family and have been very supportive and helpful with me pursuing my career as a medical professional.”




Tracy Thedoropoulos - Hygienist

Tracy was happy to join Dr. Kim's wonderful practice in February of 2014.  She has worked in dentistry for over 25 years first as an assistant and then as a dental hygienist after earning her BSDH from Old Dominion University in 1997.  Tracy’s top priority is to provide her patients with a high standard of quality, gentle care and to partner with them in achieving their goals for optimal oral health. 

She happily resides in Monkton with her amazing husband and their three loud, crazy and totally awesome boys.  When Tracy is not working with Dr. Kim she is helping her husband with their restoration business and managing their boy's busy schedules.

Tracy says “Dr. Kim and his wife Summer are such caring people and together they create a comfortable and pleasant environment not only for patients but for their team as well.”



Amanda Buscemi - Hygienist

Amanda joined our team in 2017 after graduating with honors from CCBC's dental hygiene program in the Spring of 2016. She completed her hygiene training while also studying for her personal training certification, which she finished in Summer 2016. She has a passion for educating patients about the oral-systemic link and enjoys spending time playing with her puppy, cooking, and working out at the gym.






Justine - Dental Assistant

Justine joined Dr. Kim's office in 2016. She has been an active dental assitant for 5 years, graduating from DATS and becoming DANB certified in 2012.Justine's main goal is helping assist Dr. Kim in providing the best dental care in a comfortable and relaxing environment. When not in the office she enjoys spending her free time with family and friends. Justine says, "Dr. Kim and Summer care for their patients and employees as if they were family.