RALPH JEROME WILLIAMS JR.
NPI 1922633593
Counselor - Professional in Upper Marlboro, MD

Q: What is Ralph Williams's NPI number?

The NPI number for Ralph Williams is 1922633593. It was assigned to this individual provider in the NPPES registry on March 4, 2020.

Q: What is Ralph Williams's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Q: When was this NPI record last updated?

The NPPES record for Ralph Williams was last updated on January 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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 March 04, 2020PECOS Enrolled

342 HARRY S TRUMAN DR, UPPER MARLBORO, MD 20774(202) 607-8769 Get Directions Write a Review

NPPES record last updated: January 22, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jan 22, 2026, Mar 4, 2020 (2 updates tracked since 2020).

On this page

About Ralph Jerome Williams Jr. NPPES

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

RALPH JEROME WILLIAMS JR. (NPI 1922633593) is an individual professional provider in Upper Marlboro, Maryland, licensed in District Of Columbia (PRC200001711) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1922633593

Entity TypeIndividualMale

Primary Taxonomy101YP2500X

Provider Legal NameRALPH JEROME WILLIAMS JR.

Location Address342 HARRY S TRUMAN DRUpper Marlboro, MD 20774-2018

Mailing Address342 Harry S Truman DrUpper Marlboro, MD 20774-2018 · (202) 607-8769

Phone(202) 607-8769

Sole ProprietorYes

Enumeration DateMarch 4, 2020

Last NPPES UpdateJanuary 22, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 22, 2026

✔ NPI 1922633593 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers

Taxonomy Code101YP2500X

Licenses✔ Licensed in DC · PRC200001711✔ Licensed in MD · LC16641

342 HARRY S TRUMAN DR, Upper Marlboro, MD 20774

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ralph Jerome Williams Jr. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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 Ralph Williams's NPI number?

The NPI number for Ralph Williams is 1922633593. It was assigned to this individual provider in the NPPES registry on March 4, 2020.

Where is Ralph Williams located?

Ralph Williams practices at 342 Harry S Truman Dr, Upper Marlboro, MD 20774. The listed phone number is (202) 607-8769.

What is Ralph Williams's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Ralph Williams enrolled in Medicare?

Yes. Ralph Williams is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Ralph Williams was last updated on January 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.