Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Grant Hansen Allen, DDS
Dentist in Rio Rancho, NM · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1841214921
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Registry record
Entity type Individual (Type 1)
Name Dr. Grant Hansen Allen
Credential DDS
Sex Male
Practice address 4041 Ridge Rock Rd., Rio Rancho, NM, 87124
Phone (505) 891-4510
Fax (505) 962-0803
Enumeration date Jul 26, 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
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
Where does Grant Allen practice?
The practice location on file with NPPES is in Rio Rancho, NM. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Grant Allen?
The National Provider Identifier (NPI) for Grant Allen is 1841214921, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.