NPPES file of Aug 9, 2026

William Barry Casey, M.D.

Radiation Oncology Physician · Sebring, FL

William Barry Casey, M.D. is a radiation oncology physician with a practice address in Sebring, Florida, and NPI 1811933047, issued on Jun 22, 2006. Check the license (Florida ME138036, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811933047
Name
William Barry Casey
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
ME138036 FL
44895 CO
246019 MA
Self-reported in NPPES; status is on the state search
Practice location
4416 Sun N Lake Blvd, Sebring, FL 33872
Phone
(863) 382-2049
Enumerated
Jun 22, 2006
Record last updated
Feb 12, 2026
Fax
(863) 382-2830
Medicaid IDs
44485361 CO
129764600 FL
Medicare enrollment
Enrolled (PECOS I20110113001068); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest radiation oncology physician records → All 520 in Florida → Look up another NPI →

Also registered at 4416 Sun N Lake Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sean Cavanaugh, M.D.Radiation Oncology Physician1295774453
  2. Eli Finkelstein, M.D.Radiation Oncology Physician1316051691
  3. Stephanie Rapke, M.D.Radiation Oncology Physician1285686345

Verify William Barry Casey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ME138036    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Florida license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through 4 group practices

  1. Florida Hospital Medical Group IncMaitland, FL
  2. Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA
  3. Mercy Medical Group IncSpringfield, MA
  4. Southcoast Physicians Group IncFairhaven, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William Barry Casey among 520 radiation oncology physician records in Florida

William Barry Casey, M.D. is one of 520 radiation oncology physician records with a practice address in Florida. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 21% of them.

  • NPI issued2006 · 21% of these records are older, 47% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1988 · median 2002 among the 393 with a school on file
  • Record last updated2026 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Florida

There are 520 radiation oncology physician records in Florida.

All 520 in Florida → Every provider in Sebring → Radiation Oncology Physician nationwide →

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Sean Cavanaugh, M.D.Sebring, FL 338721295774453
  2. Eli Finkelstein, M.D.Sebring, FL 338721316051691
  3. Stephanie Rapke, M.D.Sebring, FL 338721285686345
  4. Scott Gasiorek, M.D.Sebring, FL 338701194790253
  5. Michael Wing, MDSebring, FL 338701942295373
  6. Randy Heysek, MDDavenport, FL 338371629036801
  7. Michael Smith, M.D.Davenport, FL 338371902835374
  8. Peter Blitzer, MDFort Myers, FL 339081043214539

Common questions

What is William Barry Casey, M.D.'s NPI number?

William Barry Casey, M.D.'s National Provider Identifier (NPI) is 1811933047, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Barry Casey, M.D. located?

The NPPES record lists a practice address at 4416 Sun N Lake Blvd, Sebring, FL, 33872. Phone: (863) 382-2049. Providers update this record themselves, so call before visiting.

How can I verify William Barry Casey, M.D.'s license?

NPPES lists Florida license number ME138036, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.