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Dr. Gregory Paul Christensen, DDS MS

Orthodontics and Dentofacial Orthopedics Dentistry in Waterloo, IA · enumerated 2006 · practices at Christensen,Christensen & Freeseman,PC.

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

National Provider Identifier

1144394495

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Registry record

Entity type Individual (Type 1)
Name Dr. Gregory Paul Christensen
Credential DDS MS
Sex Male
Practice address 847 W 4th St, Waterloo, IA, 50702
Phone (319) 234-4486
Fax (319) 232-4913
Enumeration date Nov 20, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 07571 (IA) Primary

Other identifiers

Identifier Type State Issuer
0007948 Medicaid IA -

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.

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Frequently asked questions

Where does Gregory Christensen practice?
The practice location on file with NPPES is in Waterloo, IA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gregory Christensen?
The National Provider Identifier (NPI) for Gregory Christensen is 1144394495, a Type 1 (individual) record in the CMS NPPES registry.

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