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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.

ALLEN L CASTEEL DENTURIST
NPI 1235352121
Denturist in Great Falls, MT

Active since April 10, 2007
215 SMELTER AVE NE STE 3, GREAT FALLS, MT 59404(406) 216-4746(406) 216-4747 Get Directions Write a Review

NPPES record last updated: August 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 4, 2026, Sep 12, 2019 (2 updates tracked since 2019).

About Allen L Casteel Denturist NPPES

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

ALLEN L CASTEEL DENTURIST (NPI 1235352121) is an individual denturist in Great Falls, Montana, licensed in Montana (DEN-DTR-LIC22) and active in the NPI registry since April 2007.

NPPES Registry Identity

NPI1235352121
Entity TypeIndividualMale
Primary Taxonomy122400000X
Provider Legal NameALLEN L CASTEELCredential: DENTURIST
Location Address215 SMELTER AVE NE STE 3Great Falls, MT 59404-1937
Mailing Address215 Smelter Ave Ne Ste 3Great Falls, MT 59404-1937 · (406) 216-4746 · Fax (406) 216-4747
Phone(406) 216-4746
Fax(406) 216-4747
Sole ProprietorNo
Enumeration DateApril 10, 2007
Last NPPES UpdateAugust 4, 20262 updates tracked since enumeration
NPPES CertifiedAugust 4, 2026
✔ NPI 1235352121 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDenturistDental Providers
Taxonomy Code122400000X
Licenses✔ Licensed in MT · DEN-DTR-LIC22✔ Licensed in MT · MT DENTURIST 22
Definition
A denturist is a licensed professional that serves patients with removable dental prosthetic oral health needs. A licensed denturist is trained in removable dental prosthetics and the fabrication of such devices.
215 SMELTER AVE NE STE 3, Great Falls, MT 59404
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Other Identifiers 3

Other0000030314MT · Bcbs
Medicaid0150178MT
Other5512471MT · Chip

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 Allen Casteel's NPI number?

The NPI number for Allen Casteel is 1235352121. It was assigned to this individual provider in the NPPES registry on April 10, 2007.

Where is Allen Casteel located?

Allen Casteel practices at 215 Smelter Ave NE Ste 3, Great Falls, MT 59404. The listed phone number is (406) 216-4746.

What is Allen Casteel's specialty?

The primary specialty registered for this NPI is Denturist with taxonomy code 122400000X.

When was this NPI record last updated?

The NPPES record for Allen Casteel was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.