Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Sonia Dayal-Boyce, MS CCC-SLP/L

Speech-Language Pathologist in Naperville, IL · enumerated 2019.

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

National Provider Identifier

1841842408

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Registry record

Entity type Individual (Type 1)

Name Mrs. Sonia Dayal-Boyce

Credential MS CCC-SLP/L

Sex Female

Practice address 1011 S Naper Blvd, Naperville, IL, 60540

Phone (630) 544-4016

Enumeration date Jul 14, 2019

Last updated in NPPES Feb 19, 2024

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 146011485 (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.

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Frequently asked questions

What is the NPI number for Sonia Dayal-Boyce?

The National Provider Identifier (NPI) for Sonia Dayal-Boyce is 1841842408, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sonia Dayal-Boyce practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-19.