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

Leigh-Kirstin Daniels Sims, M.ED

Developmental Therapist in Washington, DC · enumerated 2022.

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

National Provider Identifier

1215649231

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Registry record

Entity type Individual (Type 1)

Name Leigh-Kirstin Daniels Sims

Credential M.ED

Sex Female

Practice address Washington, DC, 20002

Phone (703) 688-2654

Enumeration date Dec 21, 2022

Last updated in NPPES Dec 21, 2022

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

Taxonomy & licenses

222Q00000X Developmental Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PGP-0688891 (VA) 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 Leigh-Kirstin Sims practice?

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

What is the NPI number for Leigh-Kirstin Sims?

The National Provider Identifier (NPI) for Leigh-Kirstin Sims is 1215649231, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-21.