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

Mrs. Caitlin Diedrich

Speech-Language Pathologist in Elmhurst, IL · enumerated 2013.

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

National Provider Identifier

1710327648

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mrs. Caitlin Diedrich

Sex Female

Practice address Elmhurst, IL, 60126

Phone (630) 217-9675

Enumeration date Jun 25, 2013

Last updated in NPPES Oct 9, 2019

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

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 146.011624 (IL) 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 is the NPI number for Caitlin Diedrich?

The National Provider Identifier (NPI) for Caitlin Diedrich is 1710327648, a Type 1 (individual) record in the CMS NPPES registry.

Where does Caitlin Diedrich practice?

The practice location on file with NPPES is in Elmhurst, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-09.