5950 Frederick Crossing Lane,
Suite 201, Frederick, MD 21704
Telephone - Dentist Frederick MD301-663-9484 Fax - Dentist Frederick MD301-663-9509


Dr. Peter W. Cha, DDS, FAGD
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Dr. Cha graduated in 1986 from the Baltimore College of Dental Surgery, University of Maryland. Upon graduation he was inducted into Omicron Kappa Upsilon National Dental Honor Society. He is a Fellow of the Academy of General Dentistry. A member of the American Dental Association, Maryland State Dental Association, Frederick County Dental Society, The International Association for Orthodontics, American Association for Functional Orthodontics, and International Congress of Oral Implantologists. Dr. Cha's extensive training enables his team to offer a full range of dental services, including cosmetic smile makeovers. He has been in private practice since 1986 with his hygienist wife Sandy. They have two children, Amanda and Alex. When he is not practicing dentistry he enjoys tinkering with computers, traveling, and playing in a Rock "n" Roll band and his church band.


Dr. Danny Dinh, DDS
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Dr. Dinh graduated in 2001 from the University of California San Francisco School of Dentistry. He began his private practice career in San Francisco before he moved to Maryland. He is a member of the Academy of General Dentistry and The American Dental Association. Dr. Dinh is trained in all aspects of dentistry. He and his wife, April, who is also a dentist, reside in Montgomery Village. They are the proud parents of Miles and Camille. Besides dentistry his interests are golfing, reading, and working out.

Aubrey Geddes, Dental Assistant (QDA, QOA)
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Aubrey began working at Family Smile Center while completing her externship at Hagerstown Business College and has been with Family Smile Center since 2006. Aubrey graduated from HBC Dental Assisting Program with honors. She has attained her QDA, QOA and RHS licenses. She enjoys expanding her knowledge and education of dentistry. She lives in Frederick and likes to shop.

Cathy Ghanayem, Dental Assistant (QDA, QOA)
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Cathy graduated from Hagerstown Business College in 2007. She is proud to say that she is a member of the team at Family Smile Center. She is RHS certified and earned her QDA and QOA certification. She interacts well with people and is eager to learn new things. Cathy is also a proud mom of two wonderful children. Her interests include: family time, boating, snorkeling, vacationing and collecting sand and shells from around the world.

Ryann Johnson, Dental Assistant (QDA, QOA)
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Ryann graduated from Hagerstown Business College in May 2008 and started working at Family Smile Center since September 2008. Ryann has earned her RHS, QDA & QOA licenses. She enjoys spending time with each patient and helping them achieve their dental goals. On her free time Ryann enjoys spending time with her family, shopping, travelling and watching her husband’s band.

Lindy Witmer, Dental Assistant (QDA)
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Before Lindy joined Family Smile Center as a dental assistant in December of 2011 she and her family have been our patients since Lindy was 8 years old. She graduated from the dental assisting program at Hagerstown Community College in June 2011. She has earned her QDA and RHS licenses. She’s looking forward to expanding her horizon as a dental assistant at our practice. She enjoys spending time with her family and friends as well as travelling.

Laura Griffith, Dental Hygienist (RDH, BS)
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Laura has been our team member as a hygienist since 2006. Laura came to us from Columbus Ohio where she worked full time in a private practice and served as an adjunct clinical faculty for Columbus State Community College Department of Dental Hygiene. She received her BS degree from Northeastern University in Boston, Massachusetts and graduated from the Forsyth School of Dental Hygiene. She enjoys art quilting and creative cuisine.

Sandy Cha, Dental Hygienist (RDH, BS)
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Sandy graduated from the University of Maryland Dental Hygiene School in 1986 with a B.S.degree in Dental Hygiene. She has been practicing with her husband since 1986 and enjoys every minute of it. She is committed to the idea of preventive dentistry and wants all our patients to enjoy their smiles for life. She is a member of the American Dental Hygiene Association, Maryland State Dental Hygiene Association, and The Frederick County Dental Hygiene Association.

Kristi Yates, Scheduling Coordinator (CDA, COA)
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Kristi has been with our office since 1987. She has served in the past as a clinical expanded duty assistant, orthodontic assistant, and receptionist. Her knowledge of clinical dentistry is an asset in her current role as a scheduling coordinator. She can help patients with treatment plan and insurance questions. Her ability to multitask and interact well with our patients make her a valuable asset to our practice.

Shirley Roberts, Financial Coordinator
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Shirley has been in dentistry for over 25 years, and has been a vital part of the Family Smile Center since 1994. She has served as clinical assistant, orthodontic assistant, receptionist, scheduling coordinator, and office manager. As our most experienced team member, she plays the role of financial coordinator, and helps our patients find ways to afford the needed dental care to obtain the smile of their dreams. Please direct your financial and insurance questions to her. She can also help you with your treatment plan sequencing and scheduling.

Julie Frye, Dental Receptionist
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Julie worked for Dr. Cha from 1998 to 2002. After the birth of her second child she decided to devote her time as a stay-at-home mom. In 2005 her family moved to Martinsburg, WV. She remained a patient of Dr. Cha’s and rejoined Family Smile Center in July of 2010 as a Receptionist. Julie enjoys meeting all the patients making them feel comfortable before and after their dental appointments. Julie does her best to schedule the times that fits the patients’ needs. When not working she enjoys spending time with her family, on-line gaming and Reality TV.
Great place to go, I have already recommended this office to many of my co-workers.
~ Candice K – Walkersville

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Dentist Frederick , Braces Frederick MD , Sleep Apnea Maryland, Dental Bridge Maryland, Porcelain Veneers Maryland , Teeth Whitening Frederick, Wisdom Teeth Frederick , Gum Disease Frederick, Root Canal Frederick, Family Dentistry Frederick, Frederick Cosmetic Dentistry , Frederick Dentist: Dentists Dr. Cha & Dr. Dinh and staff offer state of the art dental services for all your dental needs, visit the Family Smile Center, Frederick.