Diana Sullivan, LCSW
NPI 1598716649 · Clinical Social Worker · Chicago, IL
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Sullivan, LCSW is a Clinical Social Worker provider in Chicago, IL (NPI 1598716649).
Provider details
- NPI number
- 1598716649
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
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
20 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
- 2006-05-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is Diana Sullivan's NPI number?
- Diana Sullivan's National Provider Identifier (NPI) is 1598716649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Sullivan's specialty?
- Diana Sullivan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Diana Sullivan located?
- Diana Sullivan's practice location on file with NPPES is 1501 S California Ave, Chicago, IL 60608-1732.
- What is Diana Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Diana Sullivan is (773) 257-6770.
- Does Diana Sullivan accept Medicare?
- Diana Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Sullivan's NPI active?
- Yes — Diana Sullivan's NPI (1598716649) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.