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

Keith Alan Ison, MD

Individual provider Internal Medicine Physician · NPI 1497711279

Keith Alan Ison, MD is an Internal Medicine in Russellville, Arkansas. Graduated from University of Arkansas College of Medicine in 2001, 25 years ago. Practices with St Marys Physician Services LLC, a 48-clinician group and accepts Medicare assignment. Licensed in Arkansas.

Years since qualifying
25
Trained at
University of Arkansas College of Medicine
Licensed in
AR
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

101 Skyline Dr
Russellville, AR 72801-3363
Phone: (479) 968-2345
Fax: (479) 890-7194
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence E-4015 (AR)

Record details

NPI number1497711279
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 21, 2006
Last updated in NPPESFebruary 18, 2015
Mailing address101 Skyline Dr, Russellville, AR 72801-3363

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice St Marys Physician Services Llc — 48 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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