Hauppauge Dentist. Dr. Eugene R Avrash provides Tooth Whitening, Implant Dentistry, Cosmetic Dentist, Tooth Ache, Family Dentistry, Kids Dentistry , Periodontal Treatment to the following locations: Smithtown, Commack, St. James, Kings Park. Smithtown Dentist providing professional dentistry including Tooth Whitening, Implant Dentistry, Cosmetic Dentist, Tooth Ache, Family Dentistry, Kids Dentistry , Periodontal Treatment in Hauppauge, Smithtown, Commack, St. James, Kings Park, New York.