NPIMap

Individual provider Active NPI

Brian Alexander Williams, MD

  • Radiation Oncology Physician
  • Bardstown, KY
National Provider Identifier
1528086873
Registry record updated Jun 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
39472 Issued in KY
Practice address
4359 New Shepherdsville Rd Unit 100
Bardstown, KY 40004-8002
Phone
(502) 350-5700
Fax
(502) 350-5701
NPI assigned
Jul 17, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 24, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X 39472 KY Primary

Addresses

Primary practice location

4359 New Shepherdsville Rd Unit 100
Bardstown, KY 40004-8002

Mailing address

PO Box 936
London, KY 40743-0936
Phone (606) 330-7835

Other identifiers 12

IdentifierTypeStateIssuer
201011980MedicaidIN
P00924152OtherKYRAILROAD MEDICARE (LKO)
000000704223OtherKYANTHEM BLUE CROSS BLUE SHIELD
1183433OtherKYCIGNA - LKO
667296OtherKYSTERLING HEALTH - LKO
667296OtherKYSTERLING HEALTH
50031976OtherKYPASSPORT HEALTH PLAN
P00440327OtherKYRAILROAD MEDICARE
000000498681OtherKYCIGNA FKO PROV. #
64102882MedicaidKY
7576431OtherKYAETNA
000000498685OtherKYCIGNA DKO PROV. #

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in KY
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20050809000503 KY Practitioner - Radiation Oncology 2567491632 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
University of Kentucky College of Medicine, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Flaget Healthcare IncGroup PAC ID 5890692024, 19 clinicians
Saint Joseph Health System IncGroup PAC ID 4183641400, 37 clinicians

Practice addresses (Care Compare)

4359 New Shepherdsville Rd
Unit 100
Bardstown, KY 40004-8002
Phone (502) 350-5700

701 Bob O Link Dr
Suite 120
Lexington, KY 40504-3760
Phone (859) 277-3137

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Flaget Healthcare Inc CurrentSince Jul 15, 2024 Accepting new patients
Flaget Healthcare Inc Radiation Oncology Current Accepting new patients
Saint Joseph Health System, Inc. CurrentSince Aug 1, 2015 Accepting new patients
Flaget Healthcare, Inc CurrentSince Jul 15, 2024 Accepting new patients
Saint Joseph Health System, Inc. CurrentSince Aug 1, 2015 Accepting new patients
Saint Joseph Health System, Inc. Past Accepting new patients
Saint Joseph Health Inc Past Accepting new patients
Commonwealth Hematology Oncology PSC Radiation Oncology Past Accepting new patients

Locations

4305 New Shepherdsville Rd
Bardstown, KY 40004
Phone (502) 350-5000

4359 New Shepherdsville Rd
Unit 100
Bardstown, KY 40004
Phone (502) 350-5000

701 Bob O Link Dr
Ste 100
Lexington, KY 40504
Phone (859) 224-3194

701 Bob O Link Dr
Ste 120
Lexington, KY 40504
Phone (859) 277-3137

3470 Blazer Pkwy
Ste 200
Lexington, KY 40509
Phone (859) 277-3737

Interoperability endpoints

  • Direct secure messaging: bwilliams275579@direct.stlukeshealth.org

Organizations & group practices 8

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.

Hospital & facility affiliations 19

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

View all 19

NPI Registry JSON

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

{
    "created_epoch": "1153094400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782259200000",
    "number": "1528086873",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 936",
            "city": "LONDON",
            "state": "KY",
            "postal_code": "407430936",
            "telephone_number": "606-330-7835"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4359 NEW SHEPHERDSVILLE RD UNIT 100",
            "city": "BARDSTOWN",
            "state": "KY",
            "postal_code": "400048002",
            "telephone_number": "502-350-5700",
            "fax_number": "502-350-5701"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "BRIAN",
        "middle_name": "ALEXANDER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-17",
        "last_updated": "2026-06-24",
        "certification_date": "2026-06-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "KY",
            "license": "39472",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "201011980",
            "state": "IN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE (LKO)",
            "identifier": "P00924152",
            "state": "KY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "ANTHEM BLUE CROSS BLUE SHIELD",
            "identifier": "000000704223",
            "state": "KY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CIGNA - LKO",
            "identifier": "1183433",
            "state": "KY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STERLING HEALTH - LKO",
            "identifier": "667296",
            "state": "KY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STERLING HEALTH",
            "identifier": "667296",
            "state": "KY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PASSPORT HEALTH PLAN",
            "identifier": "50031976",
            "state": "KY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "P00440327",
            "state": "KY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CIGNA FKO PROV. #",
            "identifier": "000000498681",
            "state": "KY"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "64102882",
            "state": "KY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AETNA",
            "identifier": "7576431",
            "state": "KY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CIGNA DKO PROV. #",
            "identifier": "000000498685",
            "state": "KY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Bardstown, KY

Sources for this page

Verify at the official NPI Registry.