Diana Guillaume, NP

Primary specialty

Adult Health Nurse PractitionerTaxonomy code 363LA2200X

License

277.005282 Issued in IL

Practice address

4120 Dempster St
Skokie, IL 60076-2101

Phone

(224) 601-7032

Fax

(224) 257-7432

NPI assigned

May 5, 2011

Sex

Female

Sole proprietor

No

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, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Oak Street Health Physicians Group PCGroup PAC ID 7517109879, 227 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northshore University Healthsystem - Evanston Hospital Hospital, Evanston, IL, CCN 140010
• Saint Francis Hospital-Evanston Hospital, Evanston, IL, CCN 140080

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.

• Oak Street Health Physicians Group, PC

  • Primary Care Clinic/Center
  • Chicago, IL
  • NPI 1083051643
  Medicare reassignment Care Compare group NPD
• Osh-Il Physicians Group LLC

  • Primary Care Clinic/Center
  • East Saint Louis, IL
  • NPI 1265977698
  Medicare reassignment NPD
• Fullerton Kimball Medical Group SC

  • Multi-Specialty Clinic/Center
  • Chicago, IL
  • NPI 1831213081
  Medicare reassignment

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Endeavor Health Clinical Operations

  • General Acute Care Hospital
  • Evanston, IL
  • NPI 1184670549
  Care Compare affiliation
• Saint Francis Hospital - Evanston LLC

  • General Acute Care Hospital
  • Evanston, IL
  • NPI 1982442398
  Care Compare affiliation

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

{
    "created_epoch": "1304553600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776124800000",
    "number": "1396037685",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 746715",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303746715",
            "telephone_number": "224-601-7032",
            "fax_number": "224-257-7432"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4120 DEMPSTER ST",
            "city": "SKOKIE",
            "state": "IL",
            "postal_code": "600762101",
            "telephone_number": "224-601-7032",
            "fax_number": "224-257-7432"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GUILLAUME",
        "first_name": "DIANA",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-05-05",
        "last_updated": "2026-04-14",
        "certification_date": "2026-04-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "IL",
            "license": "277.005282",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marina Victoria Gruzmark, LCPC
• Sharon Guan, MSW, LCSW
• Marie Guare, RN
• Holly J Gudenkauf, PHARMD
• Karla Guiab
• Linda Guillermo, LCSW, ACSW
• Stephanie Guliana
• Jasmine Jenine Gulley Brown, IAMFT
• Nikita Sarath Gummadi, FNP-BC
• Julia Gunina

• Adult Health Nurse Practitioner in Skokie, IL
• Providers in Skokie, IL by specialty
• Adult Health Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 14, 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.
• 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.