1. Home
  2. Directory
  3. Maryland
  4. Riverdale
  5. Social Worker
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

VIOLET HORSFALL OSAI
NPI 1831675388
Social Worker in Riverdale, MD

Active since July 18, 2018
5519 NICHOLSON STREET, 202, RIVERDALE, MD 20737(301) 458-9830 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 13, 2026, Jun 15, 2023, Mar 17, 2023 and 1 more (4 updates tracked since 2018).

About Violet Horsfall Osai NPPES

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

VIOLET HORSFALL OSAI (NPI 1831675388) is an individual social worker in Riverdale, Maryland, licensed in District Of Columbia (LG200007951) and active in the NPI registry since July 2018.

NPPES Registry Identity

NPI1831675388
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameVIOLET HORSFALL OSAI
Location Address5519 NICHOLSON STREET, 202Riverdale, MD 20737
Mailing Address5519 Nicholson Street,, Apt 202Riverdale, MD 20737 · (301) 458-9830
Phone(301) 458-9830
Sole ProprietorYes
Enumeration DateJuly 18, 2018
Last NPPES UpdateJuly 13, 20264 updates tracked since enumeration
NPPES CertifiedJuly 13, 2026
✔ NPI 1831675388 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in DC · LG200007951
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Also ListedCase Manager/Care CoordinatorTaxonomy 171M00000X
Also ListedHome Health AideTaxonomy 374U00000X · License HHA13791
5519 NICHOLSON STREET, Riverdale, MD 20737
Open in Google Maps ↗

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 Violet Osai's NPI number?

The NPI number for Violet Osai is 1831675388. It was assigned to this individual provider in the NPPES registry on July 18, 2018.

Where is Violet Osai located?

Violet Osai practices at 5519 Nicholson Street 202, Riverdale, MD 20737. The listed phone number is (301) 458-9830.

What is Violet Osai's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Violet Osai was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 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.