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

Dr. William George Brownstein, DDS

Individual provider Endodontics · NPI 1780662379

Dr. William George Brownstein, DDS is an Endodontics in Great Neck, New York. Practices as a sole proprietor and works from 2 locations. Licensed in Florida and New York.

Licensed in
FL, NY
In the registry since
2006
Specialties on file
2
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

1000 Northern Blvd Ste 265
Great Neck, NY 11021-5338
Phone: (516) 627-9393
Fax: (516) 627-9391
Show map & directions

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

Additional practice locations (1)

  • 250 S Ocean Blvd Apt 9a, Boca Raton, FL 33432-6255 — (516) 532-4686

Specialties & licences

Endodontics (primary) Taxonomy 1223E0200X · Licence DN31310 (FL)
Endodontics Taxonomy 1223E0200X · Licence 040665 (NY)

Record details

NPI number1780662379
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedJanuary 4, 2006
Last updated in NPPESJune 3, 2026
Certification dateJune 3, 2026
Mailing address1000 Northern Blvd Ste 265, Great Neck, NY 11021-5338

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