1. Home
  2. Directory
  3. District Of Columbia
  4. Washington
  5. Counselor
  6. NPI Profile

WILLIAM JAMES MONK
NPI 1225846603
Counselor - Addiction (Substance Use Disorder) in Washington, DC

Active since December 18, 2024
915 RHODE ISLAND AVE NW, WASHINGTON, DC 20001(023) 232-6100 Get Directions Write a Review

NPPES record last updated: May 7, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 7, 2025, Feb 6, 2025, Dec 18, 2024 (3 updates tracked since 2024).

About William James Monk NPPES

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

WILLIAM JAMES MONK (NPI 1225846603) is an individual addiction (substance use disorder) provider in Washington, District Of Columbia, licensed in District Of Columbia (CACII200001264) and active in the NPI registry since December 2024.

NPPES Registry Identity

NPI1225846603
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameWILLIAM JAMES MONK
Location Address915 RHODE ISLAND AVE NWWashington, DC 20001-4153
Mailing Address1818 New York Ave Ne Ste 201Washington, DC 20002-1849 · (202) 506-5187
Phone(023) 232-6100
Sole ProprietorNo
Enumeration DateDecember 18, 2024
Last NPPES UpdateMay 7, 20253 updates tracked since enumeration
NPPES CertifiedMay 5, 2025
✔ NPI 1225846603 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License✔ Licensed in DC · CACII200001264
915 RHODE ISLAND AVE NW, Washington, DC 20001
Open in Google Maps ↗

Other Providers at the Same Location NPPES 20

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

MELISSA CIMINO LGPC
Counselor (Mental Health)
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6810
MRS. LILI JOHNSON LICSW
Social Worker (Clinical)
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 560-0349
BIANCA PADILLA
Counselor (Professional)
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6100
MONICA PATEL LGSW
Social Worker
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6100
WEELAY GONYON
Social Worker (Clinical)
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6100
NIGEL GARNETT
Community Health Worker
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 560-0349
DEMARKUS TAYLOR
Case Manager/Care Coordinator
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6100
CHINELO ANADU NURSE PRACTITIONER
Nurse Practitioner (Psychiatric/Mental Health)
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6100

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 William Monk's NPI number?

The NPI number for William Monk is 1225846603. It was assigned to this individual provider in the NPPES registry on December 18, 2024.

Where is William Monk located?

William Monk practices at 915 Rhode Island Ave NW, Washington, DC 20001. The listed phone number is (023) 232-6100.

What is William Monk's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for William Monk was last updated on May 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.