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Hematology/Oncology

Justin A. Williams, DO

Works at hospitals in Corbin, KY · Somerset, KY · Mount Vernon, KY · Kentucky

Summary

Justin A. Williams, DO (Hematology/Oncology) is listed by Medicare at 3 hospitals in Corbin, KY, Somerset, KY and Mount Vernon, KY. NPI 1194018689. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Justin A. Williams, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Hematology/OncologyPrimary specialty
YesAccepts Medicare assignment
15Years since medical school (graduated 2011)
MaleGender (as listed)
Rockcastle County Hospital, Inc.Group practice

Quick answers

Which hospitals does Justin A. Williams work at?
Medicare's official clinician data lists Justin A. Williams at 3 hospitals: Baptist Health Corbin, Lake Cumberland Regional Hospital and Rockcastle County Hospital, Inc.. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Justin A. Williams see patients?
Medicare's clinician data lists 1 practice location in Mount Vernon, KY. Call before your visit to confirm the address.
What is Justin A. Williams's specialty?
Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
Does Justin A. Williams accept Medicare assignment?
Yes. Medicare's clinician data says Justin A. Williams accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Justin A. Williams?
(606) 256-2195, as listed in official Medicare / NPI Registry data.
What is Justin A. Williams's NPI number?
1194018689. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Justin A. Williams works

Medicare's Facility Affiliation Data lists Justin A. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Justin A. Williams is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Justin A. Williams as a member of this group (CMS data updated 2026-10-02).

  • Rockcastle County Hospital, Inc.37 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Kentucky →

Other hematologist-oncologists in Kentucky

Clinicians with the same Medicare primary specialty in Kentucky — not a recommendation.

All hematologist-oncologists in Kentucky →

Clinician information

CredentialDO
Graduation year2011
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1194018689
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians