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

Alicia Wells Day, BCBA, LABA

Q: What is the NPI number for Alicia Day?

The National Provider Identifier (NPI) for Alicia Day is 1538780267, a Type 1 (individual) record in the CMS NPPES registry.

Behavior Analyst in Northborough, MA · enumerated 2020.

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

National Provider Identifier

1538780267

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Alicia Wells Day

Credential BCBA, LABA

Sex Female

Practice address Northborough, MA, 01532

Phone (860) 485-5043

Enumeration date May 5, 2020

Last updated in NPPES May 5, 2020

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

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 2749 (MA) Secondary

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-18-32435 (MA) 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 Alicia Day practice?

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

What is the NPI number for Alicia Day?

The National Provider Identifier (NPI) for Alicia Day is 1538780267, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-05.