Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mayo Clinic

Multi-Specialty Clinic/Center in Rochester, MN · enumerated 2006 · authorized official Dennis Dahlen, Chief Financial Officer.

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

National Provider Identifier

1922074434

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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 Feb 24, 2006

Last updated in NPPES Aug 7, 2025

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians Secondary

261QM1300X Multi-Specialty Clinic/Center Ambulatory Health Care Facilities Primary

291U00000X Clinical Medical Laboratory Laboratories Secondary

332B00000X Durable Medical Equipment & Medical Supplies Suppliers Secondary

Authorized official

Name Dennis Dahlen

Title Chief Financial Officer

Phone (507) 538-3389

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 2025-08-07. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-07.