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

Allyson Tieuli, OT

Occupational Therapist in Sudbury, MA · enumerated 2014.

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

National Provider Identifier

1922414929

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Registry record

Entity type Individual (Type 1)

Name Allyson Tieuli

Credential OT

Sex Female

Practice address Sudbury, MA, 01752

Phone (978) 443-2722

Enumeration date Jul 10, 2014

Last updated in NPPES Apr 23, 2026

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

Taxonomy & licenses

251S00000X Community/Behavioral Health Agency Agencies Secondary

222Q00000X Developmental Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 12936 (MA) Primary

OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT credential

Other identifiers

Identifier	Type	State	Issuer
12936	Other	MA	BOARD OF ALLIED HEALTH PROFESSIONALS

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Allyson Tieuli?

Allyson Tieuli is registered in NPPES with the primary taxonomy of Occupational Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-23.