Active NPI
Wincy Faith Mejias, PA
- Physician Assistant
- Oakbrook Terrace, IL
National Provider Identifier
1174315063
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- 085011257
- Practice address
- 1S376 Summit Ave Ste 5B
Oakbrook Terrace, IL 60181-3968 - Phone
- (224) 300-4268
- NPI assigned
- May 19, 2025
- Last updated
- Sep 22, 2026
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | 085011257 | IL | Primary |
| Psychiatry Physician | 2084P0800X | 085011257 | IL |
Addresses
Primary practice location
1S376 Summit Ave Ste 5B
Oakbrook Terrace, IL 60181-3968
Mailing address
1S376 Summit Ave Ste 5B
Oakbrook Terrace, IL 60181-3968
Phone (224) 300-4268
Other practice location 1
486 W Boughton Rd Ste B
Bolingbrook, IL 60440-2399
Phone (630) 566-2090
Other practice location 2
3205 N Wilke Rd Unit 105
Arlington Heights, IL 60004-0001
Phone (224) 300-4268
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in IL
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 085011257 | IL | MD | Psychiatry Physician |
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1747612800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1790035200000",
"number": "1174315063",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1S376 SUMMIT AVE STE 5B",
"city": "OAKBROOK TERRACE",
"state": "IL",
"postal_code": "601813968",
"telephone_number": "224-300-4268"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1S376 SUMMIT AVE STE 5B",
"city": "OAKBROOK TERRACE",
"state": "IL",
"postal_code": "601813968",
"telephone_number": "224-300-4268"
}
],
"practiceLocations": [
{
"address_1": "486 W Boughton Rd Ste B",
"address_purpose": "LOCATION",
"city": "Bolingbrook",
"state": "IL",
"postal_code": "604402399",
"country_code": "US",
"telephone_number": "630-566-2090",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "3205 N Wilke Rd Unit 105",
"address_purpose": "LOCATION",
"city": "Arlington Heights",
"state": "IL",
"postal_code": "600040001",
"country_code": "US",
"telephone_number": "224-300-4268",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "MEJIAS",
"first_name": "WINCY FAITH",
"credential": "PA",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2025-05-19",
"last_updated": "2026-09-22",
"certification_date": "2026-09-22",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "IL",
"license": "085011257",
"primary": true
},
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "IL",
"license": "085011257",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Oakbrook Terrace, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.