Diana Cosajay, MSW
NPI 1336923184 · Social Worker · Cicero, IL
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Cosajay, MSW is a Social Worker provider in Cicero, IL (NPI 1336923184).
Provider details
- NPI number
- 1336923184
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- No
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
2 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
- 2023-08-22
- Last updated
- 2023-08-22
- Certified
- 2023-08-22
Frequently asked questions
- What is Diana Cosajay's NPI number?
- Diana Cosajay's National Provider Identifier (NPI) is 1336923184, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Cosajay's specialty?
- Diana Cosajay is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Diana Cosajay located?
- Diana Cosajay's practice location on file with NPPES is 5341 W Cermak Rd, Cicero, IL 60804-2892.
- What is Diana Cosajay's phone number?
- The practice phone number listed in the NPPES registry for Diana Cosajay is (708) 656-6439.
- Does Diana Cosajay accept Medicare?
- Diana Cosajay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Cosajay's NPI active?
- Yes — Diana Cosajay's NPI (1336923184) is active in the NPPES registry as of the last update on 2023-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.