Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Achievement Autism Services Il LLC

Q: What is the NPI number for Achievement Autism Services Il LLC?

The NPI for Achievement Autism Services Il LLC is 1518870351, a Type 2 (organization) record in the CMS NPPES registry.

Behavior Analyst in Chicago, IL · enumerated 2026 · authorized official Jeffrey Chyau, Director of Operations.

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

National Provider Identifier

1518870351

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Registry record

Entity type Organization (Type 2)

Legal business name Achievement Autism Services Il LLC

Practice address 801 S Canal St, Chicago, IL, 60607

Phone (516) 229-1194

Fax (516) 329-9747

Enumeration date Sep 23, 2026

Last updated in NPPES Sep 23, 2026

Taxonomy & classification

103K00000X Behavior Analyst Behavioral Health & Social Service Providers Primary

Authorized official

Name Jeffrey Chyau

Title Director of Operations

Phone (516) 229-1194

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

Who is the authorized official for Achievement Autism Services Il LLC?

NPPES lists Jeffrey Chyau (Director of Operations) as the authorized official for this organization.

What is the NPI number for Achievement Autism Services Il LLC?

The NPI for Achievement Autism Services Il LLC is 1518870351, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-23.