Our Dental Practice Team

The Murray Hill Dental team welcomes the opportunity of serving you, your family and friends. Their dedication and advanced training ensures the best possible dental care within a relaxed and stress-free environment. Please take a few moments to get to know our caring dental professionals in Galloway.

Troy Walton

Troy, Director of Business Operations

Murray Hill Dental - West Columbus and Westerville

Troy has been involved in the dental field since 2005. He served as a Regional Manager for Mercer Advisors, a dental consulting and financial advising company, and has also "learned by osmosis" about dentistry from his wife, Dr. Brown.

A college baseball player at Indiana University, Troy received his undergraduate degree in history and political science in 2001. A Grandview, Ohio native, Troy currently lives in Clintonville.

Dr. Katherine Frimenko

Dr. Frimenko, Associate Doctor

Murray Hill Dental - West Columbus and Westerville

Dr. Katherine Frimenko completed her undergraduate degree at Northwestern University in biology and psychology and earned her Doctor of Dental Surgery from The University of Michigan. Excited to continue advancing her clinical skills, Dr. Frimenko pursued post-graduate education at The Ohio State University General Practice Residency where she served as chief dental resident. She received advanced clinical training in all phases of dental care including treatment planning, surgery, pediatrics, anesthesia, and hospital dentistry. Dr. Frimenko also enjoys mentoring dental students and has taught at The OSU College of Dentistry. She is passionate about providing comprehensive and compassionate dental care and working with patients to help them achieve oral health and smiles they love. Dr. Frimenko is committed to staying updated on dental technology and techniques through continuing education courses in order to offer the highest level of care to all patients. She is a member of the American Dental Association, the Ohio Dental Association, the Columbus Dental Society, and the American Association of Women Dentists. Outside of the dental office, you can find Dr. Frimenko exploring running and hiking trails with her family and friends or enjoying a cup of coffee around town.

Dr. David Gillespie

Dr. Gillespie, Associate Doctor

Murray Hill Dental - West Columbus and Westerville

Dr. David Gillespie was raised in Milford, Ohio, a suburb of Cincinnati. He attended the University of Cincinnati where he played baseball, and graduated a year early with a Bachelor of Science in Biology. He completed his Doctorate of Dental Surgery at The Ohio State University where he met his wife Kensey. Dr. Gillespie is a continuing education fanatic and is always exploring new ways to offer elite dentistry to all of his patients. He is a member of the American Dental Association, Academy of General Dentistry, the American Academy of Cosmetic Dentistry and is working through the curriculum to become a Kois Center Graduate, an evidence based center that evolves with the latest clinical advances in dentistry. He has completed coursework in comprehensive treatment planning, smile design and esthetics, endodontics, surgery, restorative dentistry and will complete his implant training this upcoming October. His favorite part of Dentistry is co-diagnosis and education in order to personally tailor plans for patients so they feel certain, comfortable and confident in their oral health and smile. Dr. Gillespie enjoys playing sand volleyball, golf, and recently started doing crossfit to combat the blessing of marrying an amazing cook. He also enjoys watching the Buckeyes, Bearcats and NASCAR. When he’s not traveling or cheering on a team you might find him on his kayak fishing.

Tyler Wenger

Dr. Wenger, Associate Doctor

Murray Hill Dental - West Columbus and Westerville

Dr. Wenger was born and raised in Orrville, Ohio. After high school he attended Mount Vernon Nazarene University for a year before finishing his Bachelor of Science in Biology at The Ohio State University. The following year he took time away from education to volunteer as a tutor in a NYC elementary school before returning to Ohio State to complete his Doctor of Dental Surgery.

Dr. Wenger will be getting married in September to his fiance Kristin, who is a family medicine resident at Doctor's Hospital. They will be residing in the Polaris area with their pug Suds.

Dr. Wenger enjoys golf, traveling, and spending time with family. He hopes to be able to use his passion for dentistry and traveling together in the future on medical mission trips. Dr. Wenger is looking forward to staying up to date on the latest dental techniques and to developing lasting relationships with the patients of Murray Hill Dental.

Abigail Simmons

Dr. Abigail Simmons, Associate Doctor

Murray Hill Dental - West Columbus and Westerville

Dr. Abigail Simmons grew up in the northern Columbus suburb of Worthington, Ohio. She completed her undergraduate degree in Psychology at the Ohio State University in 2015, where she participated in a service trip to Nicaragua to provide dental services to those in need. Dr. Simmons graduated cum laude from OSU College of Dentistry in 2021.

Her interest in dentistry goes as far back as when she was seven years old and dressed up as a dentist for Halloween, and continued to evolve as she worked for local periodontist beginning in college. From her experiences in the office, Dr. Simmons developed a special interest in periodontal health and a passion for providing the best possible care to every patient. Dr. Simmons is committed to enhancing her comprehensive patient care through continuing education.

When she's not in the dental office, she enjoys traveling, spending time with her family, and going on adventures with her beloved German Shepherd, Fin.


Annie, Hygiene Leader

Murray Hill Dental - West Columbus

Annie graduated in 2005 from West Liberty University with a associates degree in Dental Hygiene and completed her Bachelors of Science degree in 2009 also from West Liberty University. She has recently moved to Columbus from Steubenville, Ohio. She loves being a part of improving the overall health of her patients and loves educating the on the importance of oral health. In her free time Annie enjoys running and cooking.


Brittany, Clinical Leader

Murray Hill Dental - West Columbus

Brittany has worked as a Certified Dental Assistant for ten years and graduated from Stark State College Expanded Functions Dental Auxiliary Program. Working with patients and helping improve their overall smile and confidence is what she loves most about her job. Brittany and her husband, Kirk, recently purchased a home in Uptown Westerville and in July will be welcoming their first baby. Brittany and her Husband enjoy going out west to ski, and hike. On the weekends, they enjoy discovering new restaurants and hangouts.


Lisa, Group Practice Leader

Murray Hill Dental - West Columbus

Lisa is not new to the "dental world". She comes to us with 14 years experience. Her favorite thing about working in Dentistry is building relationships with patients and co-workers. She has her Ph.D. in "Domestic Engineering" from the school of, "Life." Born and raised on the west side of Columbus (Go Cougars) she now lives in Grove City with her husband (and high school sweetheart) of 32 years, Scott. She has two boys, Zak and Kurt. When Lisa isn't at work you can find her running in obstacle races, at the park, watching tv, or playing with her two dogs, Gonzo (Yorkie), and her German Sheppard Grandpuppy, Rei.


Sam, Office Manager

Murray Hill Dental - West Columbus

Sam comes to Murray Hill Dental with an extensive background in Customer Service and Marketing. Born and raised in Grove City, he is very involved in the community. Sam is the current Chairman of the Grove City Parks and Recreation Board, sits on Keep Grove City Beautiful, and is a member of the Grove City Lions Club. Sam’s favorite roles are “Husband” to Cathi Jo, “Dad” to Ms. Ellie Mae, and “Fur Dad” to Lincoln (Malshipoo), George (Goldendoodle), and Boone (Cat). Ask him about the Chinese students him and Cathi Jo host, or his love for wood working.


Jaime, Office Manager

Murray Hill Dental - Westerville

Jaime was born and raised in Worthington and graduated from Thomas Worthington in 1998. She comes to our office with over 20 years of dental experience. Before becoming an office manager, Jaime started off as a chair-side assistant and later became a treatment coordinator. She considers herself a dental dork and enjoys talking about dental processes and insurance benefits.

Jaime is married to her best friend, John. They have two boys, Nathan, age 10 and Bentley, age 3. They enjoy spending their time free time four wheeling and camping with their German Shepherds, Zeus and Atticus.