Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine Riehm

Speech-Language Assistant in Surprise, AZ · enumerated 2014.

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

National Provider Identifier

1780095992

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Registry record

Entity type Individual (Type 1)

Name Katherine Riehm

Sex Female

Practice address 16578 W Greenway Rd Ste 216, Surprise, AZ, 85388

Phone (800) 376-3440

Enumeration date May 12, 2014

Last updated in NPPES May 12, 2014

Taxonomy & licenses

2355S0801X Speech-Language Assistant Speech, Language and Hearing Service Providers · License SLPA8624 (AZ) Primary

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 Katherine Riehm?

Katherine Riehm is registered in NPPES with the primary taxonomy of Speech-Language Assistant. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-12.