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

GEORGE R MACHIAN DDS
NPI 1447256599
Dentist - Endodontics in Madison, WI

Active since June 23, 2005
406 SCIENCE DR, STE 410, MADISON, WI 53711(608) 231-9489(608) 231-2814 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About George R Machian Dds NPPES

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

GEORGE R MACHIAN DDS (NPI 1447256599) is an individual endodontics provider in Madison, Wisconsin, licensed in Wisconsin (4333) and active in the NPI registry since June 2005.

NPPES Registry Identity

NPI1447256599
Entity TypeIndividualMale
Primary Taxonomy1223E0200X
Provider Legal NameGEORGE R MACHIANCredential: DDS
Location Address406 SCIENCE DR, STE 410Madison, WI 53711-1068
Mailing Address406 Science Dr, Ste 410Madison, WI 53711-1068 · (608) 231-9489 · Fax (608) 231-2814
Phone(608) 231-9489
Fax(608) 231-2814
Sole ProprietorNo
Enumeration DateJune 23, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1447256599 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · EndodonticsDental Providers
Taxonomy Code1223E0200X
License✔ Licensed in WI · 4333
Definition
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.
406 SCIENCE DR, Madison, WI 53711
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Other Providers at the Same Location NPPES 3

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

B PETER AUSTIN DDS
Dentist (Endodontics)
406 SCIENCE DR, STE 410
MADISON, WI 53711
Dane County (608) 231-9989
KEVIN D KUNTZ MD
Psychiatry & Neurology (Psychiatry)
406 SCIENCE DR, SUITE 110
MADISON, WI 53711
Dane County (608) 238-4411
DR. GARY R RIES D.M.D.
Dentist (Endodontics)
406 SCIENCE DR, STE 410
MADISON, WI 53711
Dane County (608) 231-9989

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 George Machian's NPI number?

The NPI number for George Machian is 1447256599. It was assigned to this individual provider in the NPPES registry on June 23, 2005.

Where is George Machian located?

George Machian practices at 406 Science Dr Ste 410, Madison, WI 53711. The listed phone number is (608) 231-9489.

What is George Machian's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Endodontics, with taxonomy code 1223E0200X.

When was this NPI record last updated?

The NPPES record for George Machian 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 24 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.