William Barry Casey, M.D.

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

ME138036 Issued in FL

Practice address

4416 Sun N Lake Blvd
Sebring, FL 33872-2164

Phone

(863) 382-2049

Fax

(863) 382-2830

NPI assigned

Jun 22, 2006

Last updated

Feb 12, 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 3

Addresses

Other identifiers 2

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MA, FL2 enrollments

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.

Enrollment records 2

Specialty

Radiation Oncology

Education

Georgetown University School of Medicine, 1988

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Southcoast Physicians Group IncGroup PAC ID 0749171957, 875 clinicians

Mercy Medical Group IncGroup PAC ID 2365698024, 17 clinicians

Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr IncGroup PAC ID 4486567104, 1,693 clinicians

Florida Hospital Medical Group IncGroup PAC ID 0042383200, 329 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Southcoast Hospitals Group Hospital, Fall River, MA, CCN 220074
• Mercy Medical Ctr Hospital, Springfield, MA, CCN 220066
• Winchester Hospital Hospital, Winchester, MA, CCN 220105
• Adventhealth Sebring Hospital, Sebring, FL, CCN 100109

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wcasey135028@direct.bilh.masshiway.net
• Direct secure messaging: wcasey42792@direct.southcoast.org
• Direct secure messaging: wcasey3000552@direct.trinity-health.org
• Direct secure messaging: william.casey.1@16436.direct.athenahealth.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Florida Hospital Medical Group Inc

  dba AdventHealth Medical Group Radiology

  • Diagnostic Radiology Physician
  • Orlando, FL
  • NPI 1073785044

  Radiation Oncology

  Medicare reassignment Care Compare group NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1194765438
  Medicare reassignment Care Compare group NPD
• Mercy Medical Group, Inc.

  dba Trinity Health Of New England Medical Group

  • Internal Medicine Physician
  • Springfield, MA
  • NPI 1316213143
  Medicare reassignment Care Compare group NPD
• Southcoast Physicians Group, Inc.

  • Family Medicine Physician
  • Fairhaven, MA
  • NPI 1336137629
  Medicare reassignment Care Compare group NPD
• Florida Radiology Imaging at Lake Mary, LLC

  dba AdventHealth Imaging

  • Diagnostic Radiology Physician
  • Lake Mary, FL
  • NPI 1740256494
  Medicare reassignment NPD
• Beth Israel Deaconess Medical Center, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1548202641
  Medicare reassignment NPD
• Saint Vincent Physician Services, Inc.

  • Family Medicine Physician
  • Worcester, MA
  • NPI 1013997329
  Medicare reassignment NPD
• Steward Medical Group, Inc

  • Specialist
  • Watertown, MA
  • NPI 1629398219
  Medicare reassignment NPD
• Beth Israel Deaconess Medical Center, Inc.

  • Ambulance
  • Boston, MA
  • NPI 1518600501
  NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  dba Harvard Medical Faculty Physicians

  • Multi-Specialty Clinic/Center
  • Boston, MA
  • NPI 1679397913
  NPD
• Newburyport, Ma Radiation Center LLC

  • Radiation Oncology Clinic/Center
  • Newburyport, MA
  • NPI 1861083438
  NPD
• Southcoast Physicians Group, Inc.

  • Orthopaedic Surgery Physician
  • North Dartmouth, MA
  • NPI 1902201536
  NPD

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

• Adventist Health System-Sunbelt Inc

  dba AdventHealth Cancer Institute Sebring

  • General Acute Care Hospital
  • Sebring, FL
  • NPI 1083692594
  Care Compare affiliation
• Southcoast Hospitals Group, Inc

  dba Tobey Hospital

  • General Acute Care Hospital
  • Wareham, MA
  • NPI 1922024835
  Care Compare affiliation
• The Mercy Hospital Inc

  dba Mercy Medical Center

  • General Acute Care Hospital
  • Springfield, MA
  • NPI 1043204316
  Care Compare affiliation
• The Mercy Hospital Inc

  dba Mercy Rehabilitation Hospital

  • Rehabilitation Hospital Unit
  • Springfield, MA
  • NPI 1750360798
  Care Compare affiliation
• Winchester Hospital

  • General Acute Care Hospital
  • Winchester, MA
  • NPI 1790740777
  Care Compare affiliation

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

{
    "created_epoch": "1150934400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770854400000",
    "number": "1811933047",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4416 SUN N LAKE BLVD",
            "city": "SEBRING",
            "state": "FL",
            "postal_code": "338722164",
            "telephone_number": "863-382-2049",
            "fax_number": "863-382-2830"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4416 SUN N LAKE BLVD",
            "city": "SEBRING",
            "state": "FL",
            "postal_code": "338722164",
            "telephone_number": "863-382-2049",
            "fax_number": "863-382-2830"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "736 Cambridge St",
            "address_purpose": "LOCATION",
            "city": "Brighton",
            "state": "MA",
            "postal_code": "021352907",
            "country_code": "US",
            "telephone_number": "617-789-3000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "506 Prospect Street",
            "address_purpose": "LOCATION",
            "city": "Fall River",
            "state": "MA",
            "postal_code": "02720",
            "country_code": "US",
            "telephone_number": "508-973-7888",
            "fax_number": "508-973-7934",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1 Eaton Pl",
            "address_purpose": "LOCATION",
            "city": "Worcester",
            "state": "MA",
            "postal_code": "016081232",
            "country_code": "US",
            "telephone_number": "508-363-7100",
            "fax_number": "508-363-7170",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "235 N Pearl St",
            "address_purpose": "LOCATION",
            "city": "Brockton",
            "state": "MA",
            "postal_code": "023011794",
            "country_code": "US",
            "telephone_number": "508-427-3000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CASEY",
        "first_name": "WILLIAM",
        "middle_name": "BARRY",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-22",
        "last_updated": "2026-02-12",
        "certification_date": "2026-02-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "FL",
            "license": "ME138036",
            "primary": true
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "CO",
            "license": "44895",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "MA",
            "license": "246019",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "44485361",
            "state": "CO"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "129764600",
            "state": "FL"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "wcasey42792@direct.southcoast.org",
            "affiliation": "N",
            "endpointDescription": "Southcoast Health Epic Direct Address",
            "address_1": "506 Prospect Street",
            "city": "Fall River",
            "state": "MA",
            "country_code": "US",
            "postal_code": "02720",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Nestor Carrillo
• Partick A. Carruthers, M.D.
• Cheryl Ann Carter, ARNP
• Caruso Medical Center Inc
• Casanova Home Care LLC
• Jordan James Casola, DO
• Jennifer Lynn Castelli, OTR/L, CHT
• Carlos Castilla
• Visleyca Esther Catedral Rodriguez, CRNA
• Roy Dennis Cavalcant, MD

• Radiation Oncology Physician in Sebring, FL
• Providers in Sebring, FL by specialty
• Radiation Oncology Physician in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 12, 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.