Active NPI
April Nisan Ilkmen PLLC
- Adult Mental Health Clinic/Center
- Chicago, IL
National Provider Identifier
1104629914
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Adult Mental Health Clinic/Center
- Legal business name
- APRIL NISAN ILKMEN PLLC
- Practice address
- 939 W North Ave Ste 750
Chicago, IL 60642-7142 - Phone
- (312) 478-6905
- NPI assigned
- Mar 28, 2025
- Last updated
- Mar 28, 2025
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Dr. Elif Nisan Ilkmen Tayyabi, LMFT
- Title
- Owner
- Phone
- (312) 478-6905
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Adult Mental Health Clinic/Center | 261QM0850X | NU | Primary |
Addresses
Primary practice location
939 W North Ave Ste 750
Chicago, IL 60642-7142
Mailing address
17696 W Dawn CT
Gurnee, IL 60031-4220
National Provider Directory
National Provider DirectoryPractitioners & affiliated clinicians
Practitioners 1
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.
-
- Mental Health Counselor
- Chicago, IL
- NPI 1295369221
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1743120000000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1743120000000",
"number": "1104629914",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "17696 W DAWN CT",
"city": "GURNEE",
"state": "IL",
"postal_code": "600314220"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "939 W NORTH AVE STE 750",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606427142",
"telephone_number": "312-478-6905"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "APRIL NISAN ILKMEN PLLC",
"organizational_subpart": "NO",
"enumeration_date": "2025-03-28",
"last_updated": "2025-03-28",
"certification_date": "2025-03-28",
"status": "A",
"authorized_official_last_name": "ILKMEN TAYYABI",
"authorized_official_first_name": "ELIF NISAN",
"authorized_official_title_or_position": "OWNER",
"authorized_official_telephone_number": "312-478-6905",
"authorized_official_name_prefix": "Dr.",
"authorized_official_credential": "LMFT"
},
"taxonomies": [
{
"code": "261QM0850X",
"taxonomy_group": "",
"desc": "Clinic/Center, Adult Mental Health",
"state": "NU",
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Chicago, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 28, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.