Our Office & Staff

Landmark Dental is a new family-oriented practice located in Aberdeen Maryland. Our  talented staff is led by Dr. Ali Khayyer DDS, and Dr. Summer-Marie Joseph, DDS.


Dr. Ali Khayyer, DDS

Dr. Ali Khayyer is a native of Vienna, Virginia. He attended the University of Kentucky followed by George Mason University in Fairfax Virginia, where he obtained his Bachelor’s of Science degree, and graduated with honors. He then went on to pursue his dental degree at Howard University in Washington, DC, where he obtained his Doctor of Dental Surgery degree. He was then selected as a resident in the General Practice Residency program at Saint Francis Hospital and Medical Center in Hartford, Connecticut, which included rotations in Emergency medicine, Internal medicine, Oral surgery, and Anesthesia. Throughout his career, he gained experience working with special needs and medically compromised patients.

Dr. Khayyer has a passion for giving back to his community and has participated in several Missions of Mercy, which provide free dental services to the public. He has participated in Stand Down events which provide free dental care to homeless veterans. He is an active member of the American Dental Association, Maryland Dental Society, and the Academy of General Dentistry. During his free time he enjoys reading, playing basketball, and traveling.


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Dr. Summer-Marie Joseph, DDS

Dr. Summer-Marie Joseph is originally from Montreal, Canada, where she earned her Bachelor of Science in Microbiology and Immunology from McGill University, graduating magna cum laude. She earned her Doctor of Dental Surgery degree from Howard University in Washington, DC. She then went on to pursue a General Practice Residency at Saint Francis Hospital and Medical Center in Hartford, Connecticut. Her training included restorative, surgical, and emergency dentistry, with an emphasis on special needs dentistry, where she gained experience performing treatment in the operating room. Dr Joseph has a passion for community outreach and has participated in several Mission of Mercy and Give Kids a Smile events. She is an active member of the Maryland Dental Society, the Academy of General Dentistry, and the American Dental Association.

Dr. Joseph is a classical violinist, and has been a member of various orchestras both in Montreal and Connecticut. In her spare time she enjoys travelling, both domestic and abroad, reading, and biking.