Individual provider Active NPI

Tania Diaz

  • Physician Assistant
  • Crystal Lake, IL
National Provider Identifier
1366070955
Registry record updated Oct 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
Practice address
241 Commerce Dr Ste 102
Crystal Lake, IL 60014-3538
Phone
(815) 524-2200
NPI assigned
Mar 30, 2020
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 10, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X Primary

Addresses

Primary practice location

241 Commerce Dr Ste 102
Crystal Lake, IL 60014-3538

Mailing address

241 Commerce Dr Ste 102
Crystal Lake, IL 60014-3538

Other practice location 1

1340 Ryan Pkwy
Algonquin, IL 60102-4527
Phone (815) 276-0150

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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20210707000510 IL Practitioner - Physician Assistant 4789086299 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Northwest Pulmonary and Sleep Medicine SC PastSince Oct 1, 2007 Accepting new patients

Interoperability endpoints

  • FHIR API: https://fhir4.healow.com/fhir/r4/CIHEBA
  • FHIR API: https://fhir4.healow.com/fhir/r4/ECGEBD

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.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1585526400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760054400000",
    "number": "1366070955",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "241 COMMERCE DR STE 102",
            "city": "CRYSTAL LAKE",
            "state": "IL",
            "postal_code": "600143538"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "241 COMMERCE DR STE 102",
            "city": "CRYSTAL LAKE",
            "state": "IL",
            "postal_code": "600143538",
            "telephone_number": "815-524-2200"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1340 Ryan Pkwy",
            "address_purpose": "LOCATION",
            "city": "Algonquin",
            "state": "IL",
            "postal_code": "601024527",
            "country_code": "US",
            "telephone_number": "815-276-0150",
            "fax_number": "877-461-6742",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "TANIA",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2020-03-30",
        "last_updated": "2025-10-10",
        "certification_date": "2025-10-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Crystal Lake, IL

Sources for this page

Verify at the official NPI Registry.