Active NPI
Tatiana Diaz
- Behavior Analyst
- Willowbrook, IL
National Provider Identifier
1801456926
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Behavior Analyst
- License
- 1-20-46201
- Practice address
- 6300 Kingery Hwy Ste 102
Willowbrook, IL 60527-2250 - Phone
- (815) 469-1500
- NPI assigned
- Jun 20, 2019
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Behavior Analyst | 103K00000X | 1-20-46201 | Primary |
Addresses
Primary practice location
6300 Kingery Hwy Ste 102
Willowbrook, IL 60527-2250
Mailing address
6300 Kingery Hwy Ste 102
Willowbrook, IL 60527-2250
Phone (815) 469-1500
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
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Westside Childrens Therapy | Past | Accepting new patients | |
| Total Spectrum, LLC | Behavior Analyst | Past | Accepting new patients |
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
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NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1560988800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763596800000",
"number": "1801456926",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6300 KINGERY HWY STE 102",
"city": "WILLOWBROOK",
"state": "IL",
"postal_code": "605272250",
"telephone_number": "815-469-1500"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6300 KINGERY HWY STE 102",
"city": "WILLOWBROOK",
"state": "IL",
"postal_code": "605272250",
"telephone_number": "815-469-1500"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DIAZ",
"first_name": "TATIANA",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2019-06-20",
"last_updated": "2025-11-20",
"certification_date": "2025-11-20",
"status": "A"
},
"taxonomies": [
{
"code": "103K00000X",
"taxonomy_group": "",
"desc": "Behavior Analyst",
"state": null,
"license": "1-20-46201",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Willowbrook, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 20, 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.