Diana Isela Diaz, FNP-C

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

209-031925 Issued in IL

Practice address

207 E Butterfield Rd
Elmhurst, IL 60126-7200

Phone

(630) 359-8054

NPI assigned

Jul 3, 2025

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

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

Specialty

Nurse Practitioner

Education

Other, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Midwest Express Care 2, IncGroup PAC ID 0547495467, 221 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

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.

• Midwest Express Care 2, Inc

  • Urgent Care Clinic/Center
  • Willowbrook, IL
  • NPI 1548692890
  Medicare reassignment Care Compare group NPD
• Midwest Express Care 2, Inc

  • Urgent Care Clinic/Center
  • Chicago, IL
  • NPI 1659952554
  NPD

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

{
    "created_epoch": "1751500800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751500800000",
    "number": "1184514960",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2016 N 18TH AVE",
            "city": "MELROSE PARK",
            "state": "IL",
            "postal_code": "601601204",
            "telephone_number": "708-522-4029"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "207 E BUTTERFIELD RD",
            "city": "ELMHURST",
            "state": "IL",
            "postal_code": "601267200",
            "telephone_number": "630-359-8054"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "DIANA",
        "middle_name": "ISELA",
        "name_prefix": "Ms.",
        "credential": "FNP-C",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-07-03",
        "last_updated": "2025-07-03",
        "certification_date": "2025-06-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IL",
            "license": "209-031925",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• William Errol Dewitt, DDS
• Suruchi Dewoolkar, D.O.
• Bhavneet Dhillon
• Sanjiv Dhodapkar, PT, DPT
• Dialysis Centers of America - Illinois, Inc.
• Caitlin Diedrich
• Olivia Nicole Dietrich, DMD
• Annemarie Dietzen, DPT
• Lalitha Dileep-Ansal, MD
• Kimberly Dipasqua

• Family Nurse Practitioner in Elmhurst, IL
• Providers in Elmhurst, IL by specialty
• Family Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 3, 2025; 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.