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Shari K Marx, MD

Internal Medicine Physician in Helena, MT · enumerated 2005.

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

National Provider Identifier

1659363786

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Registry record

Entity type Individual (Type 1)
Name Shari K Marx
Credential MD
Sex Female
Practice address 3330 Ptarmigan Ln, Helena, MT, 59602
Phone (406) 442-3570
Fax (406) 795-7910
Enumeration date Aug 16, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 8650 (MT) 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
0037740 Medicaid MT -

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 is the NPI number for Shari Marx?
The National Provider Identifier (NPI) for Shari Marx is 1659363786, a Type 1 (individual) record in the CMS NPPES registry.
Where does Shari Marx practice?
The practice location on file with NPPES is in Helena, MT. Providers can have multiple locations; NPPES lists the primary practice address.

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