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Meet the Doctors

Dr. Mark D. Greenstein, D.M.D.

Dr. Greenstein has practiced dentistry in Clinton for over 29 years. He attended the State University of New York at Stony Brook from 1979-1982. He then attended the University of Medicine and Dentistry of New Jersey, where he earned his D.M.D. degree. He graduated in 1986 with honors. He is a member of the American Dental Association and of the Southern Maryland Dental Society.

Dr. Greenstein’s mission is to provide excellent dental care in a relaxed and comfortable environment. He is known for his jovial personality. He keeps his patients laughing and comfortable throughout their dental procedures. He has been in practice with Dr. Cox since 1988.



Dr. Willard B. Cox, D.D.S.

Dr. Willard B. Cox is no longer practicing dentistry. He retired in June 2016. He is enjoying retirement with his wife Anna Ruth and their dog Bodi.

7905 Malcolm Rd, Ste 104  •  Clinton, MD 20735
ph. (301) 868-7228  •   fax. (301) 868-1363