Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mayo Clinic

Medical Specialty Clinic/Center in Rochester, MN · enumerated 2008 · authorized official Dennis Dahlen, Cfo.

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

National Provider Identifier

1427235068

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Registry record

Entity type Organization (Type 2)

Legal business name Mayo Clinic

Practice address 200 1st St Sw, Rochester, MN, 55905

Phone (507) 284-2511

Fax (507) 284-0574

Enumeration date Jan 25, 2008

Last updated in NPPES Apr 12, 2021

Taxonomy & classification

261QM2500X Medical Specialty Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Dennis Dahlen

Title Cfo

Phone (507) 538-3389

Other identifiers

Identifier	Type	State	Issuer
702712500	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Mayo Clinic located?

The practice location on file with NPPES is in Rochester, MN.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2021-04-12. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-12.