NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Hellman, OTR

Specialist in Mandan, ND · enumerated 2007 · practices at Morton-Sioux Special Education Unit.

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

National Provider Identifier

1245384866

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mary Hellman
Credential OTR
Sex Female
Practice address 309 Collins Ave, Mandan, ND, 58554
Phone (701) 663-9531
Enumeration date Jan 22, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 646 (ND) Primary

Other identifiers

Identifier Type State Issuer
646 Other ND STATE OTR LICENSE
50935 Medicaid ND -

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 Hellman?
Mary Hellman is registered in NPPES with the primary taxonomy of Specialist. 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

Browse all →

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