Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Mary Anne Guggenheim, M.D.

Neurology with Special Qualifications in Child Neurology Physician in Helena, MT · enumerated 2007.

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

National Provider Identifier

1457564759

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Registry record

Entity type Individual (Type 1)

Name Ms. Mary Anne Guggenheim

Credential M.D.

Sex Female

Practice address Helena, MT, 59601

Phone (406) 443-5006

Fax (928) 447-7713

Enumeration date May 7, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084N0402X Neurology with Special Qualifications in Child Neurology Physician Allopathic & Osteopathic Physicians · License 4505 (MT) Primary

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

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 Mary Guggenheim practice?

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

What is the NPI number for Mary Guggenheim?

The National Provider Identifier (NPI) for Mary Guggenheim is 1457564759, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.