What is Marlene Williams's NPI number?

Marlene Williams's National Provider Identifier (NPI) is 1548885296, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Marlene Williams's specialty?

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

Where is Marlene Williams located?

Marlene Williams's practice location on file with NPPES is 4118 Bullwhip Creek Ln, Sachse, TX 75048-4851.

What is Marlene Williams's phone number?

The practice phone number listed in the NPPES registry for Marlene Williams is (469) 343-0278.

Is Marlene Williams's NPI active?

Yes — Marlene Williams's NPI (1548885296) is active in the NPPES registry as of the last update on 2025-08-22.

IndividualActive

Marlene Williams, PH.D.

NPI 1548885296 · Psychologist · Sachse, TX

Marlene Williams, PH.D. is a Psychologist provider in Sachse, TX (NPI 1548885296).

Provider details

NPI number: 1548885296
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PH.D.
Sex: Female
Sole proprietor: No

Specialties & taxonomies

PsychologistPrimary103T00000X
Behavioral Health & Social Service Providers

Profile Score

Established profile(58/100 index)

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

Registry tenure38% of score
6 yrs in NPPES registry
Profile completeness38% of score
83% 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

4118 Bullwhip Creek Ln

Sachse, TX 75048-4851

Phone: (469) 343-0278

Street-level locationGet directions

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Mailing address