Mary Kate Williamson, MS, RD

Primary specialty

Registered DietitianTaxonomy code 133V00000X

Practice address

2551 N Clark St Ste 400
Chicago, IL 60614-7725

Phone

(312) 533-1754

Fax

(312) 268-7084

NPI assigned

Apr 16, 2025

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Science

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.

• Healthier Tomorrows, PLLC

  • Registered Dietitian
  • Chicago, IL
  • NPI 1063769735

  Dietitian, Registered

  NPD

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

{
    "created_epoch": "1744761600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744761600000",
    "number": "1508652702",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2551 N CLARK ST STE 400",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606147725",
            "telephone_number": "312-533-1754",
            "fax_number": "312-268-7084"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2551 N CLARK ST STE 400",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606147725",
            "telephone_number": "312-533-1754",
            "fax_number": "312-268-7084"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "MARY",
        "middle_name": "KATE",
        "credential": "MS, RD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-04-16",
        "last_updated": "2025-04-16",
        "certification_date": "2025-04-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Deisi Williamson
• Francesca Williamson
• Jordan A Williamson
• Joy Deliverance Williamson
• Laura Ann Williamson, MSN,CWON,AG-CNS-BC
• Melissa Jane Williamson
• Nada Williamson, CRNA
• Paula Faye Williamson, FNP
• Peter R Williamson
• Reginald Lamont Williamson

• Registered Dietitian in Chicago, IL
• Providers in Chicago, IL by specialty
• Registered Dietitian in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 16, 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.