Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Grant Rae Spranger, DDS

General Practice Dentistry in Muscatine, IA · enumerated 2024.

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

National Provider Identifier

1780425900

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Registry record

Entity type Individual (Type 1)

Name Dr. Grant Rae Spranger

Credential DDS

Sex Male

Practice address 2202 Houser St, Muscatine, IA, 52761

Phone (563) 500-1069

Enumeration date Jun 3, 2024

Last updated in NPPES Jun 3, 2024

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DDS-10207 (IA) 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

What is the NPI number for Grant Spranger?

The National Provider Identifier (NPI) for Grant Spranger is 1780425900, a Type 1 (individual) record in the CMS NPPES registry.

Where does Grant Spranger practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-03.