NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Miss Phyllis Devon Williams, MA

Mental Health Counselor in Decatur, GA · enumerated 2007.

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

National Provider Identifier

1891981320

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Registry record

Entity type Individual (Type 1)
Name Miss Phyllis Devon Williams
Credential MA
Sex Female
Practice address Decatur, GA, 30030
Phone (770) 710-7335
Enumeration date Sep 18, 2007
Last updated in NPPES Oct 19, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License MFC40719 (CA) Secondary
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFT001192 (GA) Secondary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License L336 (AL) Secondary
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License MFT001192 (GA) Primary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFC40719 (CA) Secondary

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.

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Frequently asked questions

What specialty is Phyllis Williams?
Phyllis Williams is registered in NPPES with the primary taxonomy of Mental Health Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-19.