Marla Williams
NPI 1033764881 · Clinical Social Worker · Anna, IL
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marla Williams is a Clinical Social Worker provider in Anna, IL (NPI 1033764881).
Provider details
- NPI number
- 1033764881
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2019-08-08
- Last updated
- 2020-07-22
- Certified
- 2020-07-22
Frequently asked questions
- What is Marla Williams's NPI number?
- Marla Williams's National Provider Identifier (NPI) is 1033764881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marla Williams's specialty?
- Marla Williams is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Marla Williams located?
- Marla Williams's practice location on file with NPPES is 513 N Main St, Anna, IL 62906-1697.
- What is Marla Williams's phone number?
- The practice phone number listed in the NPPES registry for Marla Williams is (618) 833-4471.
- Does Marla Williams accept Medicare?
- Marla Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marla Williams's NPI active?
- Yes — Marla Williams's NPI (1033764881) is active in the NPPES registry as of the last update on 2020-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.