DR. JUSTIN ALLEN WILLIAMS (D.O.) – Hematology & Oncology Physician, NPI 1194018689
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
197 HEMATOLOGY/ONCOLOGY in KY
Provider Addresses for DR. JUSTIN ALLEN WILLIAMS (D.O.)
145 NEWCOMB AVE
MOUNT VERNON, KY 40456
Phone: (606) 256-7798
Type: Location
ROCKCASTLE REGIONAL HOSPITAL
145 NEWCOMB AVE.
MT. VERNON, KY 40456
Phone: (606) 256-7798
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 261 Open Payments records for all available years, with a total value of $4,867.
Total Amount is formed as General ($4,867) + Research ($0) + Ownership ($0) = $4,867.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($405).
Total Amount
$4,867
General + Research + Ownership
Payments
261
Total payment records
General Amount
$4,867
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2017-07-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20170717002838 | I | Hematology/Oncology | KY | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 179 | 81 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 20 | 20 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 13 | 12 | $0 |
Insurance plans in this area (ZIP 40456)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | KY | |
| Nurse Practitioner | KY | |
| Nurse Practitioner | KY | |
| Clinical Social Worker | KY | |
| Physician Assistant | KY | |
| N E U R O L O G Y | KY | |
| Nurse Practitioner | KY | |
| - | KY | |
| Physician Assistant | KY | |
| - | KY |
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