Mary Jean Gustafson, RN C

Primary specialty

Registered NurseTaxonomy code 163W00000X

Practice address

2123 Wesley Ave
Evanston, IL 60201

Phone

(773) 593-7379

Fax

(847) 328-7494

NPI assigned

Jun 7, 2007

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Registered Nurse

State licenses

Practice roles

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.

• Olga Mest Interpreters Inc

  • Nutritionist
  • Evanston, IL
  • NPI 1760502959
  NPD (past)
• Olga Mest Interpreters Inc

  • Developmental Therapist
  • Chicago, IL
  • NPI 1942419536
  NPD (past)

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

{
    "created_epoch": "1181174400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1851594709",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6332 N KEYSTONE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "60646",
            "telephone_number": "773-283-0114",
            "fax_number": "773-283-6298"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2123 WESLEY AVE",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "60201",
            "telephone_number": "773-593-7379",
            "fax_number": "847-328-7494"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GUSTAFSON",
        "first_name": "MARY",
        "middle_name": "JEAN",
        "name_prefix": "Mrs.",
        "credential": "RN C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-06-07",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "133N00000X",
            "taxonomy_group": "",
            "desc": "Nutritionist",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Melissa B Guon
• Anshu Gupta, MD
• Harsh V Gupta, MD
• Sidhartha Gupta, MD
• Sunny Gupta
• Alexis Mercedes Gutierrez
• Jeannie M. Gutierrez, PH.D.
• Salma Gutierrez
• Dawna Lee Gutzmann, M.D.
• Brianna Maria Guzman, AUD

• Registered Nurse in Evanston, IL
• Providers in Evanston, IL by specialty
• Registered Nurse in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.

Verify at the official NPI Registry.