Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gentry Michael Hansen, DMD, MD

Oral and Maxillofacial Surgery (Dentist) in Sioux City, IA · enumerated 2012.

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

National Provider Identifier

1235497975

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Registry record

Entity type Individual (Type 1)

Name Gentry Michael Hansen

Credential DMD, MD

Sex Male

Practice address 5828 Sunnybrook Dr, Sioux City, IA, 51106

Phone (712) 823-9654

Fax (712) 823-9008

Enumeration date May 1, 2012

Last updated in NPPES Mar 7, 2024

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License D1197 (SD) Secondary

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 09513 (IA) Primary

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 45169 (IA) Secondary

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 11002 (SD) Secondary

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 32567 (TX) Secondary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

Where does Gentry Hansen practice?

The practice location on file with NPPES is in Sioux City, IA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Gentry Hansen?

The National Provider Identifier (NPI) for Gentry Hansen is 1235497975, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-07.