Justin Allen Williams, D.O.
Hematology & Oncology Physician · Mount Vernon, KY
Justin Allen Williams, D.O. is a hematology & oncology physician with a practice address in Mount Vernon, Kentucky, and NPI 1194018689, issued on May 17, 2011. Check the license (Kentucky 03718, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Justin Allen Williams
- Credential
- D.O.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 03718 KY
R2674 KY
Self-reported in NPPES; status is on the state search - Practice location
- 145 Newcomb Ave, Mount Vernon, KY 40456
- Phone
- (606) 256-7798
- Enumerated
- May 17, 2011
- Record last updated
- Feb 22, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170717002838); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 152 in Kentucky → Look up another NPI →
Also registered at 145 Newcomb Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gavin BetsworthNurse's Aide1174340780
- Melissa Fain, PHARMDPharmacist1003203423
- Eduardo Gomez, M.D.Diagnostic Radiology Physician1700921509
- Michael Hamilton, MDEmergency Medicine Physician1235163510
- Thelma Hampton, FNP-CFamily Nurse Practitioner1598305047
- Erin KingOccupational Therapist1275149353
Verify Justin Allen Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 03718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
563 Medicare Part D claims for 75 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 99 claims were for opioids.
Most prescribed
- Oxycodone Hcl70 claims
- Anastrozole40 claims
- Acyclovir39 claims
- Prochlorperazine Maleate38 claims
- Hydroxyurea34 claims
- Dexamethasone32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $2,475.88
133 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Rockcastle County Hospital, Inc.Mount Vernon, KY · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Justin Allen Williams among 152 hematology & oncology physician records in Kentucky
Justin Allen Williams, D.O. is one of 152 hematology & oncology physician records with a practice address in Kentucky. 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 2011, is newer than 74% of them.
- NPI issued2011 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2011 · median 2004 among the 117 with a school on file
- Record last updated2019 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Kentucky
There are 152 hematology & oncology physician records in Kentucky.
All 152 in Kentucky → Every provider in Mount Vernon → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- William John, MDRichmond, KY 404751366448664
- Thomas Baeker, MDDanville, KY 404221992700926
- Arej Sawani, M.D.Danville, KY 404221407832850
- Firas Badin, M.D.Lexington, KY 405031588828693
- Russell Eldridge, MDLexington, KY 405031548261423
- John Gohmann, MDLexington, KY 405031639179484
- Lee Hicks, MDLexington, KY 405031356342125
- Amie Jackson, MDLexington, KY 405031023246949
Common questions
What is Justin Allen Williams, D.O.'s NPI number?
Justin Allen Williams, D.O.'s National Provider Identifier (NPI) is 1194018689, issued on May 17, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Justin Allen Williams, D.O. located?
The NPPES record lists a practice address at 145 Newcomb Ave, Mount Vernon, KY, 40456. Phone: (606) 256-7798. Providers update this record themselves, so call before visiting.
How can I verify Justin Allen Williams, D.O.'s license?
NPPES lists Kentucky license number 03718, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Justin Allen Williams, D.O. prescribe under Medicare Part D?
In 2024, Justin Allen Williams, D.O. had 563 Medicare Part D claims for 75 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
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.
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.