Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew M Grau, D.D.S.

Endodontics in Stillwater, MN · enumerated 2006 · practices at Land of Lakes Endodontics PA.

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

National Provider Identifier

1467400515

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew M Grau

Credential D.D.S.

Sex Male

Practice address 2850 Curve Crest Blvd W Ste 115, Stillwater, MN, 55082

Phone (651) 439-8764

Fax (651) 439-9660

Enumeration date May 4, 2006

Last updated in NPPES Feb 3, 2016

Taxonomy & licenses

1223E0200X Endodontics Dental Providers · License 11312 (MN) Primary

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
237L1LA	Other	MN	1
6806273	Medicaid	MN	-

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Matthew Grau?

Matthew Grau is registered in NPPES with the primary taxonomy of Endodontics. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Land of Lakes Endodontics PA Endodontics · Stillwater, MN NPI 1710108022

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-03.