Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

C.E. Nassi Consulting Group, LLC

Q: What is the NPI number for C.E. Nassi Consulting Group, LLC?

The NPI for C.E. Nassi Consulting Group, LLC is 1124415534, a Type 2 (organization) record in the CMS NPPES registry.

Professional Counselor in Washington, DC · enumerated 2015 · authorized official Karen Devalera, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1124415534

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Registry record

Entity type Organization (Type 2)

Legal business name C.E. Nassi Consulting Group, LLC

Practice address 3845 S Capitol St Sw, Washington, DC, 20032

Phone (202) 210-1299

Enumeration date Apr 23, 2015

Last updated in NPPES Apr 14, 2022

Taxonomy & classification

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License CACII 1254 (DC) Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License LGPC00039 (DC) Secondary

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License PRC14847 (DC) Primary

261QD1600X Developmental Disabilities Clinic/Center Ambulatory Health Care Facilities Secondary

Authorized official

Name Karen Devalera

Title Owner

Phone (202) 210-1299

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for C.E. Nassi Consulting Group, LLC?

The NPI for C.E. Nassi Consulting Group, LLC is 1124415534, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for C.E. Nassi Consulting Group, LLC?

NPPES lists Karen Devalera (Owner) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-14.