IndividualActive
Colleen O'Sullivan, LSW
NPI 1659225530 · Clinical Social Worker · Chicago, IL
Colleen O'Sullivan, LSW is a Clinical Social Worker provider in Chicago, IL (NPI 1659225530).
Provider details
- NPI number
- 1659225530
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LSW
- Sex
- Female
- Sole proprietor
- No
- License
- 150118375 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(53/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
10801 S Western Ave Ste 2b
Chicago, IL 60643-3223
Phone: (708) 586-7357
Approximate (ZIP-level) locationGet directions
Mailing address
2737 Union St
Blue Island, IL 60406-1926
Registry dates
- Enumerated
- 2026-02-25
- Last updated
- 2026-02-25
- Certified
- 2026-02-25
Frequently asked questions
- What is Colleen O'Sullivan's NPI number?
- Colleen O'Sullivan's National Provider Identifier (NPI) is 1659225530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen O'Sullivan's specialty?
- Colleen O'Sullivan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Colleen O'Sullivan located?
- Colleen O'Sullivan's practice location on file with NPPES is 10801 S Western Ave Ste 2b, Chicago, IL 60643-3223.
- What is Colleen O'Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Colleen O'Sullivan is (708) 586-7357.
- Is Colleen O'Sullivan's NPI active?
- Yes — Colleen O'Sullivan's NPI (1659225530) is active in the NPPES registry as of the last update on 2026-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.