Preston Thomas, MD

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

125.087143 Issued in IL

Practice address

251 E Huron St
Chicago, IL 60611-3055

Phone

(312) 227-4000

NPI assigned

Mar 18, 2024

Last updated

Jun 29, 2026By the provider in NPPES

Sex

Male

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

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1710720000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782691200000",
    "number": "1437918091",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "251 E HURON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113055",
            "telephone_number": "312-227-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "251 E HURON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113055",
            "telephone_number": "312-227-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "THOMAS",
        "first_name": "PRESTON",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2024-03-18",
        "last_updated": "2026-06-29",
        "certification_date": "2026-06-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "IL",
            "license": "125.087143",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Paris Thomas
• Patrick Thomas
• Paul Thomas, PT
• Paul Thomas, MD
• Philip Kenyon Woody Thomas, DO
• Rachael Elizabeth Thomas, BSN, APN
• Rachel Renee Thomas, DPT
• Riya Thomas
• Ronay Joanna Thomas, MD
• Sajjini G Thomas, M.D.

• Radiation Oncology Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Radiation Oncology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 29, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.