Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark James Herr, MD

Q: What is the NPI number for Mark Herr?

The National Provider Identifier (NPI) for Mark Herr is 1477532711, a Type 1 (individual) record in the CMS NPPES registry.

Orthopaedic Surgery Physician in Rochester, MN · enumerated 2006.

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

National Provider Identifier

1477532711

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Registry record

Entity type Individual (Type 1)

Name Mark James Herr

Credential MD

Sex Male

Practice address 1650 4th St Se, Rochester, MN, 55904

Phone (507) 529-6650

Enumeration date Jan 14, 2006

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 48377 (WI) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 43168 (MN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
34673600	Medicaid	WI	-

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 Mark Herr practice?

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

What is the NPI number for Mark Herr?

The National Provider Identifier (NPI) for Mark Herr is 1477532711, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.