OrthodontistIndex

Allison Greenberg, DDS

Orthodontist in Avon, CT

Registered orthodontistLicense # listed (CT)

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Public-record details

Address
44 Dale Rd, Avon, CT 06001
Phone
(860) 674-8417
Listed under
Individual orthodontists
NPI
1104380740
NPI status
Active in the NPPES registry
Provider type
Individual provider
Registered specialty (self-reported taxonomy)
Orthodontics and Dentofacial Orthopedics (1223X0400X)
Credentials listed
DDS
License number on NPI record
CT12435 (CT)
NPI first issued
Jan 28, 2019
NPI record last updated
Feb 19, 2026

NPI 1104380740 is active in the federal NPPES registry (CMS) with Orthodontics and Dentofacial Orthopedics, an ADA-recognized dental specialty, as its primary taxonomy; license CT12435 (CT) is listed on the record. Source: NPPES NPI Registry (CMS) (record). Data as of 2026-09-30.

What these registry facts mean

The NPI (National Provider Identifier) is the federal ID every HIPAA-covered provider uses to bill insurance. This NPI belongs to an individual clinician. The specialty is the taxonomy the provider chose when registering; NPPES does not check it. A license number here is what the provider entered — confirm it with the state board before you rely on it. Orthodontists are dentists who completed an accredited orthodontic residency after dental school. General dentists can also offer braces or aligners, but they are not listed here.

View NPI 1104380740 in the official registry ↗

Checking credentials: the specialty shown is the one this provider registered with the NPI system. Your state dental board's license lookup confirms the license, and the American Board of Orthodontics lists board-certified orthodontists.

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