Active NPI
Esmeralda Perez
- Registered Nurse
- Naperville, IL
National Provider Identifier
1437099074
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Registered Nurse
- License
- 041.522530
- Practice address
- 100 E Jefferson Ave
Naperville, IL 60540-5660 - Phone
- (630) 637-5635
- NPI assigned
- Apr 1, 2026
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Registered Nurse | 163W00000X | 041.522530 | IL | Primary |
Addresses
Primary practice location
100 E Jefferson Ave
Naperville, IL 60540-5660
Mailing address
531Springbrook Trail N
Oswego, IL 60543
Phone (773) 344-2525
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 041.522530 | IL | MD | Registered Nurse |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1775001600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789516800000",
"number": "1437099074",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "531SPRINGBROOK TRAIL N",
"city": "OSWEGO",
"state": "IL",
"postal_code": "60543",
"telephone_number": "773-344-2525"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "100 E JEFFERSON AVE",
"city": "NAPERVILLE",
"state": "IL",
"postal_code": "605405660",
"telephone_number": "630-637-5635"
}
],
"practiceLocations": [],
"basic": {
"last_name": "PEREZ",
"first_name": "ESMERALDA",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2026-04-01",
"last_updated": "2026-09-16",
"certification_date": "2026-09-16",
"status": "A"
},
"taxonomies": [
{
"code": "163W00000X",
"taxonomy_group": "",
"desc": "Registered Nurse",
"state": "IL",
"license": "041.522530",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Naperville, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.