What is Marcia Williams's NPI number?

Marcia Williams's National Provider Identifier (NPI) is 1841093135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Marcia Williams's specialty?

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

Where is Marcia Williams located?

Marcia Williams's practice location on file with NPPES is 4741 Colonel Ashton Pl, Upper Marlboro, MD 20772-2881.

What is Marcia Williams's phone number?

The practice phone number listed in the NPPES registry for Marcia Williams is (301) 379-9654.

Is Marcia Williams's NPI active?

Yes — Marcia Williams's NPI (1841093135) is active in the NPPES registry as of the last update on 2025-03-31.

IndividualActive

Marcia Williams

NPI 1841093135 · Behavior Technician · Upper Marlboro, MD

Marcia Williams is a Behavior Technician provider in Upper Marlboro, MD (NPI 1841093135).

Provider details

NPI number: 1841093135
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Behavior TechnicianPrimary106S00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(48/100 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
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

4741 Colonel Ashton Pl

Upper Marlboro, MD 20772-2881

Phone: (301) 379-9654

Fax: (240) 377-0226

Street-level locationGet directions

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Mailing address