Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Ann Warne, RN, CNP

Gerontology Nurse Practitioner in Minneapolis, MN · enumerated 2005 · practices at Group Health Plan Inc.

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

National Provider Identifier

1720075062

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Registry record

Entity type Individual (Type 1)

Name Mary Ann Warne

Credential RN, CNP

Sex Female

Practice address 2220 Riverside Ave, Ms 26602g, Minneapolis, MN, 55454

Phone (952) 883-6805

Fax (952) 883-6117

Enumeration date Oct 3, 2005

Last updated in NPPES Oct 10, 2016

Taxonomy & licenses

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 212837-23 (MD) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier	Type	State	Issuer
940818500	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

What specialty is Mary Warne?

Mary Warne is registered in NPPES with the primary taxonomy of Gerontology Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-10.