What is Martez Williams's NPI number?

Martez Williams's National Provider Identifier (NPI) is 1407682651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Martez Williams's specialty?

Martez Williams is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is Martez Williams located?

Martez Williams's practice location on file with NPPES is 411 Court St, Portsmouth, OH 45662-3932.

What is Martez Williams's phone number?

The practice phone number listed in the NPPES registry for Martez Williams is (740) 354-6685.

Is Martez Williams's NPI active?

Yes — Martez Williams's NPI (1407682651) is active in the NPPES registry as of the last update on 2026-03-13.

IndividualActive

Martez Williams

NPI 1407682651 · Social Worker · Portsmouth, OH

Martez Williams is a Social Worker provider in Portsmouth, OH (NPI 1407682651).

Provider details

NPI number: 1407682651
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No
License: S.2604926-TRNE (OH)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense S.2604926-TRNE (OH)
Behavioral Health & Social Service Providers

Profile Score

Established profile(56/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
1 yr in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

411 Court St

Portsmouth, OH 45662-3932

Phone: (740) 354-6685

Fax: (740) 876-4005

Street-level locationGet directions

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Mailing address