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

Dr. Mary Harsh, PHD

Psychologist in Helena, MT · enumerated 2006.

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

National Provider Identifier

1144380528

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Registry record

Entity type Individual (Type 1)
Name Dr. Mary Harsh
Credential PHD
Sex Female
Practice address Helena, MT, 59601
Phone (406) 465-6793
Fax (406) 442-5868
Enumeration date Dec 8, 2006
Last updated in NPPES Nov 8, 2019

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

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 302 (MT) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier Type State Issuer
52221 Other MT BLUE CROSS BLUE SHIELD
0492150 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 Mary Harsh?
The National Provider Identifier (NPI) for Mary Harsh is 1144380528, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Harsh practice?
The practice location on file with NPPES is in Helena, MT. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-08.