Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ONELIA SPEECH & LANGUAGE SERVICES, PLLC
NPI 1780590349
Speech-Language Pathologist in Washington, DC

Q: What is Onelia Speech & Language Services, PLLC's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Active since August 21, 2026

4601 CONNECTICUT AVE NW APT 217, WASHINGTON, DC 20008(703) 568-1707 Get Directions Write a Review

NPPES record added: August 21, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

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About Onelia Speech & Language Services, Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ONELIA SPEECH & LANGUAGE SERVICES, PLLC (NPI 1780590349) is a healthcare organization registered as a speech-language pathologist in Washington, District Of Columbia and active in the NPI registry since August 2026. The organization lists Brandlynn Nicole Nelson, Owner/slp, as its authorized official.

NPPES Registry Identity

NPI1780590349

Entity TypeOrganization

Primary Taxonomy235Z00000X

Legal Business NameONELIA SPEECH & LANGUAGE SERVICES, PLLC

Location Address4601 CONNECTICUT AVE NW APT 217Washington, DC 20008-5701

Mailing Address818 18th St Nw Ste 8101291Washington, DC 20006-3513 · (703) 568-1707

Phone(703) 568-1707

Organization SubpartNo

Authorized OfficialBrandlynn Nicole NelsonOwner/slp · (703) 568-1707

Enumeration DateAugust 21, 2026

NPPES CertifiedAugust 21, 2026

✔ NPI 1780590349 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers

Taxonomy Code235Z00000X

Definition

The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

4601 CONNECTICUT AVE NW APT 217, Washington, DC 20008

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BRANDLYNN NELSON M.S. CCC-SLP

Speech-Language Pathologist

4601 CONNECTICUT AVE NW APT 217
WASHINGTON, DC 20008

District of Columbia (703) 568-1707

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Onelia Speech & Language Services, PLLC's NPI number?

The NPI number for Onelia Speech & Language Services, PLLC is 1780590349. It was assigned to this organization in the NPPES registry on August 21, 2026.

Where is Onelia Speech & Language Services, PLLC located?

Onelia Speech & Language Services, PLLC is located at 4601 Connecticut Ave NW Apt 217, Washington, DC 20008. The listed phone number is (703) 568-1707.

What is Onelia Speech & Language Services, PLLC's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

When was this NPI record last updated?

The NPPES record for Onelia Speech & Language Services, PLLC was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.