Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Greig R Grimm, DDS
Dentist in Charles City, IA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1245242924
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Registry record
Entity type Individual (Type 1)
Name Dr. Greig R Grimm
Credential DDS
Sex Male
Practice address 703 N Main St Ste C, Charles City, IA, 50616
Phone (641) 228-2932
Enumeration date Aug 12, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0119701 | 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.
Frequently asked questions
What is the NPI number for Greig Grimm?
The National Provider Identifier (NPI) for Greig Grimm is 1245242924, a Type 1 (individual) record in the CMS NPPES registry.
Where does Greig Grimm practice?
The practice location on file with NPPES is in Charles City, 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 2007-07-08.