Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Duane Despain Callahan, DDS

General Practice Dentistry in Sandy, UT · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770633190

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Registry record

Entity type Individual (Type 1)

Name Dr. Duane Despain Callahan

Credential DDS

Sex Male

Practice address 8045 S 700 E, Sandy, UT, 84070

Phone (081) 255-3351

Fax (801) 569-1701

Enumeration date Jan 10, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 276294-9922 (UT) Primary

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Duane Callahan's NPI record?

Cross-check NPI 1770633190 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1770633190 active?

Yes — as of the latest NPPES snapshot, NPI 1770633190 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.