NPI Portal NPI Lookup & Verification

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

Mrs. Allison Evans Sullivan, B.S., M.S., CCC-A

Audiologist in Wellesley, MA · enumerated 2012.

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

National Provider Identifier

1588924336

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Allison Evans Sullivan
Credential B.S., M.S., CCC-A
Sex Female
Practice address Wellesley, MA, 02481
Phone (781) 431-5275
Enumeration date May 25, 2012
Last updated in NPPES Oct 13, 2020

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

Taxonomy & licenses

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 4753 (MA) Secondary
231H00000X Audiologist Speech, Language and Hearing Service Providers · License AY1611 (FL) 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 Allison Sullivan?
The National Provider Identifier (NPI) for Allison Sullivan is 1588924336, a Type 1 (individual) record in the CMS NPPES registry.
Where does Allison Sullivan practice?
The practice location on file with NPPES is in Wellesley, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-13.