The Howlin Building
10085 Dunkirk Way, #202
Dunkirk, MD 20754

301-855-6008 · 410-257-2400
Fax: 410-257-0628


Mark R. Frazer, D.D.S.

Dr. Mark R. Frazer graduated from Georgetown University School of Dentistry and following a three year tour of duty in the U.S. Air Force, started his practice of general dentistry in Prince Frederick.

Dr. Frazer has practiced continuously in Calvert County since that time. In 1979, he was appointed to a 6 year term on the Maryland State Board of Dental Examiners and served as its president for one year. He has earned his Fellowship in the Academy of General Dentistry and been elected a Fellow of the American College of Dentists.

In 1986, the voters of Calvert County elected Mark, who now lives in North Beach, to his first term on the Calvert County Board of County Commissioners. He was re-elected to a second term in 1994. In 1998, and again in 2002, he was elected mayor of the Town of North Beach. During Mark's term as Mayor he also served as president of the Maryland Municipal League from 2003-2004.

When not practicing in his dental office Mark enjoys golfing and spending time with his grandchildren. His special interests within the dental practice include cosmetic dentistry, prosthetics (replacing lost teeth), dental implants and, above all, making his patients comfortable and feel good about their smile.




Yuey S. Moy, D.D.S.

  "We have to understand our patients' needs before we can truly be an effective care provider."

Dr. Moy was inspired to pursue the dental profession after seeing the impact it had in his own life. Due to the lack of proper oral health care, his father's mouth soon fell into decay. With advancements in technology and after several treatments, skilled dentists were able to restore not only his father's teeth but also his smile. Dr. Moy feels a smiles is the best indication of happiness and now seeks to provide his patients with both a beautiful smile and a pleasant experience.

After graduating from Saint John's University with a Bachelor of Science in Biology in 1979 he attended Georgetown University Dental School on a Public Health Scholarship and graduated in 1983. He served three years with the public health service providing dental care to the under served population. His education did not stop after college, however, and learning remains a significant part of his professional life. He keeps informed of the newest innovations in a variety of fields including cosmetic, endodontics, reconstructive and periodontal treatments. Additionally, he has extensive knowledge of bone grafting and implant rehabilitation.

Dr. Moy, his wife and two daughters reside in Northern Virginia. 

Robert M. Hoerauf, D.D.S.

Dr. Hoerauf is a 1982 graduate of The Baltimore College of Dental Surgery, Dental School, University of Maryland. He was elected by the schools faculty to Who's Who among Dental Students in American Universities and Colleges. In 1982 he also received the Psi Omega Fraternal Achievement Award.  

Dr. Hoerauf finished a General Practice Residency at the Geisinger Medical Center in Danville, Pennsylvania in 1983. During his residency he gained valuable experience with advanced and complicated cases in the field of dentistry. In July of 1987 he was awarded a Fellowship in the Academy of General Dentistry.  Dr. Hoerauf is a member of the American Dental Association, The Maryland State Dental Association and the Patuxent Dental Society. Dr. Hoerauf lives in St. Leonard. He and his wife Kristi have three children;Lauren, Janine and John. He enjoys camping, bicycling, kayaking and staying active in scout activities.  Dr. Hoerauf is an active member of First Lutheran Church in Huntingtown.

Ashley M. Moy, D.D.S.

After assisting her father in his dental practice during summer breaks from school, Dr. Moy discovered she had a true love for dentistry. She is passionate for the art and science of the field and, most importantly, for helping people achieve oral health and a smile that can restore their confidence. 

In 2012, Dr. Ashley Moy completed her undergraduate studies at Virginia Commonwealth University with a bachelor's degree in biology and double minor in chemistry and business. During her time at VCU she was a very active member of Delta Epsilon Mu, a pre-health academic fraternity. The following year Dr. Moy completed a certificate program at George Mason University in Advanced Biomedical Sciences and i n 2017 completed her dental education at Howard University College of Dentistry.  She was recently accredited by the International Dental Implant Association for implant placement.

Dr. Moy is currently a member of the American Dental Association, Academy of General Dentistry, Maryland State Dental  Association and Patuxent Dental Society and is working towards her Academy of General Dentistry fellowship which requires 500 hours of continuing education. Dr. Moy is practicing in our Prince Frederick and Dunkirk locations.

In her free time Dr. Moy enjoys crafts, painting, drawing, and music.