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

Mrs. Deirdra Osborne, MASTERS OF SCIENCE

Speech-Language Pathologist in Bowie, MD · enumerated 2009.

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

National Provider Identifier

1598091621

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Registry record

Entity type Individual (Type 1)

Name Mrs. Deirdra Osborne

Credential MASTERS OF SCIENCE

Sex Female

Practice address Bowie, MD, 20721

Phone (773) 480-7253

Enumeration date Oct 23, 2009

Last updated in NPPES May 30, 2013

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

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 06443 (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 Deirdra Osborne practice?

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

What is the NPI number for Deirdra Osborne?

The National Provider Identifier (NPI) for Deirdra Osborne is 1598091621, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-30.