IndividualActive
Mercedes Williams
NPI 1629456140 · Clinical Social Worker · Chicago, IL
Mercedes Williams is a Clinical Social Worker provider in Chicago, IL (NPI 1629456140).
Provider details
- NPI number
- 1629456140
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 149.018102 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(74/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs 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
4952 S Prairie Ave
Apt 302
Chicago, IL 60615-2249
Phone: (773) 499-9678
Street-level locationGet directions
Mailing address
4952 S Prairie Ave
Chicago, IL 60615-2249
Registry dates
- Enumerated
- 2015-05-16
- Last updated
- 2016-05-17
Frequently asked questions
- What is Mercedes Williams's NPI number?
- Mercedes Williams's National Provider Identifier (NPI) is 1629456140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mercedes Williams's specialty?
- Mercedes Williams is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mercedes Williams located?
- Mercedes Williams's practice location on file with NPPES is 4952 S Prairie Ave, Chicago, IL 60615-2249.
- What is Mercedes Williams's phone number?
- The practice phone number listed in the NPPES registry for Mercedes Williams is (773) 499-9678.
- Is Mercedes Williams's NPI active?
- Yes — Mercedes Williams's NPI (1629456140) is active in the NPPES registry as of the last update on 2016-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.