Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexander Perry Willett, PSYD

Clinical Psychologist in Bloomington, IL · enumerated 2017 · practices at Psychology Specialists Ltd.

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

National Provider Identifier

1710493770

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexander Perry Willett

Credential PSYD

Sex Male

Practice address 808 S Eldorado Rd Ste 102, Bloomington, IL, 61704

Phone (309) 706-3190

Fax (309) 588-4115

Enumeration date Dec 28, 2017

Last updated in NPPES Jun 9, 2026

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 071009688 (IL) Primary

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 071009688 (IL) Secondary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

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 specialty is Alexander Willett?

Alexander Willett is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-09.