Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Linda J True, MA

Audiologist in Mason City, IA · enumerated 2006.

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

National Provider Identifier

1326122896

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Linda J True

Credential MA

Sex Female

Practice address 250 S Crescent Dr, Mason City, IA, 50401

Phone (641) 422-6424

Fax (641) 421-2556

Enumeration date Oct 24, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 00443 (IA) Primary

Other identifiers

Identifier	Type	State	Issuer
1218842	Medicaid	IA	-

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 Linda True?

Linda True is registered in NPPES with the primary taxonomy of Audiologist. 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.