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

David Stewart Christy Jr., MSW, JD

Clinical Social Worker in Takoma Park, MD · enumerated 2021.

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

National Provider Identifier

1255095642

Verified

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Registry record

Entity type Individual (Type 1)

Name David Stewart Christy Jr.

Credential MSW, JD

Sex Male

Practice address Takoma Park, MD, 20912

Phone (202) 664-2825

Enumeration date Oct 22, 2021

Last updated in NPPES Oct 22, 2021

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 24887 (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

What is the NPI number for David Christy?

The National Provider Identifier (NPI) for David Christy is 1255095642, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Christy practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-22.