Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Sonja Williams and Associates, LLC

Marriage & Family Therapist in Largo, MD · enumerated 2018 · authorized official Sonja Williams, Executive Director.

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

National Provider Identifier

1063980514

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Sonja Williams and Associates, LLC

Practice address 9701 Apollo Dr Ste 491, Largo, MD, 20774

Phone (301) 386-5511

Enumeration date Nov 2, 2018

Last updated in NPPES Mar 7, 2019

Taxonomy & classification

101YP1600X Pastoral Counselor Behavioral Health & Social Service Providers Secondary

101YP2500X Professional Counselor Behavioral Health & Social Service Providers Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers Primary

Authorized official

Name Sonja Williams

Title Executive Director

Phone (301) 437-5311

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Sonja Williams and Associates, LLC?

Sonja Williams and Associates, LLC is registered in NPPES as a Marriage & Family Therapist (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-07.