Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alison Greer

Q: What is the NPI number for Alison Greer?

The National Provider Identifier (NPI) for Alison Greer is 1639649429, a Type 1 (individual) record in the CMS NPPES registry.

Speech-Language Pathologist in Annapolis, MD · enumerated 2018 · practices at Anne Arundel County Public Schools.

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

National Provider Identifier

1639649429

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Registry record

Entity type Individual (Type 1)

Name Alison Greer

Sex Female

Practice address 2644 Riva Rd, Annapolis, MD, 21401

Phone (410) 222-5000

Enumeration date Dec 5, 2018

Last updated in NPPES Dec 5, 2018

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 05363 (MD) 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 Alison Greer practice?

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

What is the NPI number for Alison Greer?

The National Provider Identifier (NPI) for Alison Greer is 1639649429, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-05.