Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOHN ROBERT DEMPSEY D.D.S. M.S.
NPI 1639176217
Dentist - Orthodontics and Dentofacial Orthopedics in Phoenix, AZ

Active since June 28, 2005
4232 E CACTUS RD, STE 203, PHOENIX, AZ 85032(602) 996-8995(602) 765-0272 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. John Robert Dempsey D.d.s. M.s. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN ROBERT DEMPSEY D.D.S. M.S. (NPI 1639176217) is an individual orthodontics and dentofacial orthopedics provider in Phoenix, Arizona, licensed in Arizona (2235) and active in the NPI registry since June 2005.

NPPES Registry Identity

NPI1639176217
Entity TypeIndividualMale
Primary Taxonomy1223X0400X
Provider Legal NameDR. JOHN ROBERT DEMPSEYCredential: D.D.S. M.S.
Location Address4232 E CACTUS RD, STE 203Phoenix, AZ 85032-7615
Mailing Address4232 E Cactus Rd, Ste 203Phoenix, AZ 85032-7615 · (602) 996-8995 · Fax (602) 765-0272
Fax(602) 765-0272
Sole ProprietorNo
Enumeration DateJune 28, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1639176217 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDentist · Orthodontics and Dentofacial OrthopedicsDental Providers
Taxonomy Code1223X0400X
License Licensed in AZ · 2235
Definition
That area of dentistry concerned with the supervision, guidance and correction of the growing or mature dentofacial structures, including those conditions that require movement of teeth or correction of malrelationships and malformations of their related structures and the adjustment of relationships between and among teeth and facial bones by the application of forces and/or the stimulation and redirection of functional forces within the craniofacial complex. Major responsibilities of orthodontic practice include the diagnosis, prevention, interception and treatment of all forms of malocclusion of the teeth and associated alterations in their surrounding structures; the design, application and control of functional and corrective appliances; and the guidance of the dentition and its supporting structures to attain and maintain optimum occlusal relations in physiologic and esthetic harmony among facial and cranial structures.
4232 E CACTUS RD, Phoenix, AZ 85032

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physical Therapist
4232 E CACTUS RD, SUITE 110
PHOENIX, AZ 85032
Ophthalmology
4232 E CACTUS RD, STE 108
PHOENIX, AZ 85032
Clinic/Center (Mental Health (Including Community Mental Health Center))
4232 E CACTUS RD, SUITE 207
PHOENIX, AZ 85032
Psychologist
4232 E CACTUS RD
PHOENIX, AZ 85032
Psychologist (Clinical)
4232 E CACTUS RD, SUITE 207
PHOENIX, AZ 85032
Dentist (Oral and Maxillofacial Surgery)
4232 E CACTUS RD, SUITE 204
PHOENIX, AZ 85032
Dentist (Oral and Maxillofacial Surgery)
4232 E CACTUS RD, SUITE 204
PHOENIX, AZ 85032
Dentist
4232 E CACTUS RD, SUITE 211
PHOENIX, AZ 85032

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Dempsey's NPI number?

The NPI number for John Dempsey is 1639176217. It was assigned to this individual provider in the NPPES registry on June 28, 2005.

Where is John Dempsey located?

John Dempsey practices at 4232 E Cactus Rd Ste 203, Phoenix, AZ 85032. The listed phone number is (602) 996-8995.

What is John Dempsey's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Orthodontics and Dentofacial Orthopedics, with taxonomy code 1223X0400X.

When was this NPI record last updated?

The NPPES record for John Dempsey was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.