Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Martha L. Hefner, OT

Specialist in Saint Charles, MO · enumerated 2007.

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

National Provider Identifier

1881749356

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Registry record

Entity type Individual (Type 1)

Name Ms. Martha L. Hefner

Credential OT

Sex Female

Practice address 4545 Central School Rd, Saint Charles, MO, 63304

Phone (636) 851-5347

Enumeration date Jan 24, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 000359 (MO) Primary

OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT 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.

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Frequently asked questions

What specialty is Martha Hefner?

Martha Hefner 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.

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