Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Justin Allen Williams, DO

Individual provider Internal Medicine Physician · NPI 1194018689

Dr. Justin Allen Williams, DO is a Hematology/Oncology in Mount Vernon, Kentucky. Qualified in 2011, 15 years ago. Practices with Rockcastle County Hospital, Inc, a 38-clinician group and accepts Medicare assignment. Licensed in Kentucky.

Years since qualifying
15
Licensed in
KY
In the registry since
2011
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

145 Newcomb Ave
Mount Vernon, KY 40456
Phone: (606) 256-7798
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 03718 (KY)
Internal Medicine Physician Taxonomy 207R00000X · Licence R2674 (KY)

Record details

NPI number1194018689
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 17, 2011
Last updated in NPPESFebruary 22, 2019
Mailing addressRockcastle Regional Hospital, 145 Newcomb Ave., Mt. Vernon, KY 40456

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Rockcastle County Hospital, Inc. — 38 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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