NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary Kathleen Smerecky

Speech-Language Pathologist in Johnsburg, IL · enumerated 2017.

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

National Provider Identifier

1477069441

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Mary Kathleen Smerecky
Sex Female
Practice address 2220 Church St, Johnsburg, IL, 60051
Phone (815) 385-6210
Enumeration date Dec 28, 2017
Last updated in NPPES Dec 28, 2017

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers 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

Where does Mary Smerecky practice?
The practice location on file with NPPES is in Johnsburg, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Smerecky?
The National Provider Identifier (NPI) for Mary Smerecky is 1477069441, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-28.