Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Allen Matthew Alston

Q: What is the NPI number for Allen Alston?

The National Provider Identifier (NPI) for Allen Alston is 1558837096, a Type 1 (individual) record in the CMS NPPES registry.

Professional Counselor in Milwaukee, WI · enumerated 2018.

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

National Provider Identifier

1558837096

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Registry record

Entity type Individual (Type 1)

Name Mr. Allen Matthew Alston

Sex Male

Practice address 2821 N. 4th St M&S Clinical Svc., Suite 210, Milwaukee, WI, 53206

Phone (414) 263-6000

Fax (414) 263-2270

Enumeration date Oct 23, 2018

Last updated in NPPES Oct 23, 2018

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 2258-226 (WI) 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 Allen Alston?

The National Provider Identifier (NPI) for Allen Alston is 1558837096, a Type 1 (individual) record in the CMS NPPES registry.

Where does Allen Alston practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-23.