Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. George Washington Tiernan, DDS

Individual provider General Practice Dentistry · NPI 1457512527

Dr. George Washington Tiernan, DDS is a General Practice Dentistry in Plainview, New York. Licensed in New York. Registered with an NPI since 2008.

Licensed in
NY
In the registry since
2008
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

See every abbreviation used in this directory →

Practice location Address checks out

875 Old Country Rd Ste 101
Plainview, NY 11803-4942
Phone: (516) 931-1221
Fax: (516) 861-6520
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence 24690 (NY)

Record details

NPI number1457512527
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedJune 21, 2008
Last updated in NPPESJune 21, 2008

Other providers in Plainview