Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

XAVIER RONALD PARKER SR. MSW
NPI 1235819913
Social Worker in Washington, DC

Q: What is Xavier Parker's NPI number?

The NPI number for Xavier Parker is 1235819913. It was assigned to this individual provider in the NPPES registry on July 19, 2023.

Q: What is Xavier Parker's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Xavier Parker was last updated on June 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 50 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.

Active since July 19, 2023

35 K ST NE # NA, WASHINGTON, DC 20002(202) 905-4478 Get Directions Write a Review

NPPES record last updated: June 26, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Xavier Ronald Parker Sr. Msw NPPES

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

XAVIER RONALD PARKER SR. MSW (NPI 1235819913) is an individual social worker in Washington, District Of Columbia, licensed in District Of Columbia (LG200004575) and active in the NPI registry since July 2023.

NPPES Registry Identity

NPI1235819913

Entity TypeIndividualMale

Primary Taxonomy104100000X

Provider Legal NameXAVIER RONALD PARKER SR.Credential: MSW

Location Address35 K ST NE # NAWashington, DC 20002-4216

Mailing Address35 K St Ne # NaWashington, DC 20002-4216 · (202) 905-4478 · Fax (202) 673-6495

Phone(202) 905-4478

Sole ProprietorYes

Enumeration DateJuly 19, 2023

Last NPPES UpdateJune 26, 2026

NPPES CertifiedJune 26, 2026

✔ NPI 1235819913 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers

Taxonomy Code104100000X

License✔ Licensed in DC · LG200004575

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 ListedCounselor · Mental HealthTaxonomy 101YM0800X

35 K ST NE # NA, Washington, DC 20002

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Other Providers at the Same Location NPPES

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

MR. WARREN WILLIAMS BS

Counselor (Mental Health)

35 K ST NE # NA
WASHINGTON, DC 20002

District of Columbia (202) 673-6495

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 Xavier Parker's NPI number?

The NPI number for Xavier Parker is 1235819913. It was assigned to this individual provider in the NPPES registry on July 19, 2023.

Where is Xavier Parker located?

Xavier Parker practices at 35 K St NE # Na, Washington, DC 20002. The listed phone number is (202) 905-4478.

What is Xavier Parker'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 Xavier Parker was last updated on June 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 50 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.