OrthodontistIndex

John Dempsey, DDS, MS

Orthodontist in Phoenix, AZ

Registered orthodontistLicense # listed (AZ)

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Public-record details

Address
4232 E Cactus Rd, Ste 203, Phoenix, AZ 85032
Phone
(602) 996-8995
Listed under
Individual orthodontists
NPI
1639176217
NPI status
Active in the NPPES registry
Provider type
Individual provider
Registered specialty (self-reported taxonomy)
Orthodontics and Dentofacial Orthopedics (1223X0400X)
Credentials listed
DDS, MS
License number on NPI record
2235 (AZ)
NPI first issued
Jun 28, 2005
NPI record last updated
Jul 13, 2026

NPI 1639176217 is active in the federal NPPES registry (CMS) with Orthodontics and Dentofacial Orthopedics, an ADA-recognized dental specialty, as its primary taxonomy; license 2235 (AZ) 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 1639176217 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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