Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Arndt Hagan, M.D.

Pediatrics Physician in Marshall, MN · enumerated 2005.

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

National Provider Identifier

1659362077

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Arndt Hagan

Credential M.D.

Sex Female

Practice address 300 S Bruce St, Avera Marshall, Marshall, MN, 56258

Phone (507) 537-9007

Fax (507) 537-2720

Enumeration date Nov 3, 2005

Last updated in NPPES Mar 9, 2015

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 58575 (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
501782	Other	WI	TOUCHPOINT
WI01P1	Other	WI	JOHN DEERE
12805	Other	WI	DEAN
39080723696	Other	WI	BLUE CROSS BLUE SHIELD
34051400	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.

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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 Mary Hagan?

Mary Hagan is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-09.