Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

April Nisan Ilkmen PLLC

Organization Adult Mental Health Clinic/Center · NPI 1104629914

April Nisan Ilkmen PLLC is an Adult Mental Health Clinic/Center in Chicago, Illinois. Registered with an NPI since 2025.

In the registry since
2025
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

939 W North Ave Ste 750
Chicago, IL 60642-7142
Phone: (312) 478-6905
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Mental Health Clinic/Center (primary) Taxonomy 261QM0850X

Record details

NPI number1104629914
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Elif Nisan Ilkmen Tayyabi — Owner · (312) 478-6905
NPI enumeratedMarch 28, 2025
Last updated in NPPESMarch 28, 2025
Certification dateMarch 28, 2025
Mailing address17696 W Dawn Ct, Gurnee, IL 60031-4220

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