Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Walter Richard Grabner, DDS

Dentist in Hopkins, MN · enumerated 2007 · practices at Mainstreet Dental.

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

National Provider Identifier

1992829063

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Registry record

Entity type Individual (Type 1)

Name Dr. Walter Richard Grabner

Credential DDS

Sex Male

Practice address 29 - 9th Avenue North, Hopkins, MN, 55343

Phone (952) 938-7341

Fax (952) 938-9361

Enumeration date Mar 16, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License 4925 (MN) 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

Where does Walter Grabner practice?

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

What is the NPI number for Walter Grabner?

The National Provider Identifier (NPI) for Walter Grabner is 1992829063, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

William Rolfe Dentist · Hopkins, MN NPI 1326162520 Mainstreet Dental Dentist · Hopkins, MN NPI 1528182342

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