Dr. Keith Alan Ison, MD
- Medicare services, 2024
- 6,982
- Medicare patients, 2024
- 631
- Part D claims, 2024
- 8,899
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 101 Skyline Dr, Russellville, AR 72801
- Practice phone
- Call (479) 968-2345
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Mary's Physician Services
Russellville, Arkansas
Find Dr. Ison's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Keith Alan Ison is an internist in Russellville, Arkansas
Dr. Ison practices at St Mary's Physician Services in Russellville, Arkansas.
Dr. Ison's NPI, 1497711279, was assigned on April 21, 2006. Dr. Ison graduated from University of Arkansas College of Medicine in 2001. Dr. Ison holds Arkansas license E-4015.
- NPI
- 1497711279NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193701431
- NPI enumeration date
- April 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (479) 968-2345
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Keith Alan Ison practices at St Mary's Physician Services in Russellville, Arkansas
Dr. Ison's primary practice is St Mary's Physician Services, at 101 Skyline Dr, Russellville, AR 72801 in Pope County. The practice phone is (479) 968-2345.
- St Mary's Physician Services101 Skyline Dr, Russellville, AR 72801 · Pope CountyPhone(479) 968-2345
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Keith Alan Ison is affiliated with 7 sites of care and 1 medical group
Dr. Ison's primary practice is St Mary's Physician Services in Russellville, Arkansas. Dr. Ison is also affiliated with Saint Mary's Regional Health. The medical group on file is St. Marys Physician Services. Dmand AI also links Dr. Ison to 4 more home health agencies and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Keith Alan Ison's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ison practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Mary's Physician Services | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Keith Alan Ison is one of 642 internists in Arkansas
Internal medicine is Dr. Ison's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ison is licensed in Arkansas.
Specialties and state licenses
- Internal medicine, ArkansasPrimary
Internists near Dr. Ison
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Keith Alan Ison billed Medicare for 6,982 services in 2024
CMS data shows 6,982 Medicare services from Dr. Ison across 48 procedure codes in 2024, for 631 Medicare patients. Medicare paid $189,680 for them. Every service was in an office.
Dr. Ison's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 3,0892024: 2,9684%
- Other services
- 2023: 3812024: 1,324248%
- Office and hospital visits
- 2023: 1,1162024: 1,0189%
- Surgery
- 2023: 7632024: 7701%
- Imaging
- 2023: 5412024: 47412%
- Drugs given in the office
- 2023: 1652024: 21430%
- Tests and treatments
- 2023: 2262024: 2145%
Dr. Ison compared with the Arkansas median for internists, 2024
- Dr. Ison
- Arkansas median
- Medicare services
- 6,982vs 8428.3 times
- Medicare patients
- 631vs 2902.2 times
- Part D claims
- 8,122vs 19741.2 times
Medians across 627 internists in Arkansas with Dmand AI profiles that report each measure.
Dr. Ison's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Ison?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ison and other internists in Arkansas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Keith Alan Ison treated 631 Medicare patients in 2024, average age 75
CMS counts 631 Medicare patients who saw Dr. Ison in 2024. The largest group is 65 to 74, with 315 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ison's median patient age at 73, with 66% women.
Dr. Ison's Medicare patients by age, 2024
Dr. Ison's Medicare patients by sex, 2024
- Women43869%
- Men19331%
Chronic conditions among Dr. Ison's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis42%
- Ischemic heart disease32%
- Diabetes30%
- Mood disorders25%
- Depression24%
- Anxiety23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ison's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women66%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Keith Alan Ison wrote 8,899 Medicare Part D claims in 2024
In 2024, Dr. Ison wrote 8,899 Medicare Part D claims for 434 patients. 88% of them were for generic drugs. CMS names the drug for 8,122 of them, across 129 drugs with 11 or more claims each, at $312,016 in total drug cost. In 2023, CMS named 7,502 claims across 119 drugs.
Dr. Ison's Part D claims by kind of drug, 2024
- Generic7,860 claims88%
- Brand-name959 claims11%
- Other80 claims1%
Dr. Ison's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Ison's Part D claims, 2024
- Opioids1%87 of 8,899 claims
- Antibiotics2%221 of 8,899 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7,5022024: 8,1228%
Drugs named by CMS: 129 in 2024, 119 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Keith Alan Ison takes part in Medicare
Dr. Ison accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Keith Alan Ison has 2 publications on record
Dmand AI links 2 papers to Dr. Ison, published from 2019 to 2023.
Recent publications by Dr. Ison
See who Dr. Ison researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ison works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Keith Alan Ison received $773 in industry payments from 2016 to 2025
CMS Open Payments shows 46 general payments to Dr. Ison from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Sunovion Pharmaceuticals Inc. paid the most, $287.
General payments to Dr. Ison by program year, 2016 to 2025
General payments to Dr. Ison by kind, 2016 to 2025
- Food and beverage$76599%
- Consulting fees$81%
Companies that paid Dr. Ison the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Keith Alan Ison graduated from University of Arkansas College of Medicine
Dr. Ison graduated from University of Arkansas College of Medicine in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Keith Alan Ison's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Keith Alan Ison
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Keith Alan Ison's NPI number?
Dr. Keith Alan Ison's NPI number is 1497711279. It was assigned on April 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Keith Alan Ison?
Dr. Keith Alan Ison is an internist in Russellville, Arkansas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Keith Alan Ison practice?
Dr. Ison practices at 101 Skyline Dr, Russellville, AR 72801. Dr. Ison's primary practice is St Mary's Physician Services in Russellville, Arkansas. Dmand AI also links Dr. Ison to 4 home health agencies and 1 group practice or clinic.
What is Dr. Keith Alan Ison's office phone number?
The practice phone on file for Dr. Ison is (479) 968-2345.
What is Dr. Keith Alan Ison's medical license number?
Dr. Ison holds Arkansas license E-4015.
Which hospitals is Dr. Keith Alan Ison affiliated with?
Dr. Ison is affiliated with Saint Mary's Regional Health.
What medical group is Dr. Keith Alan Ison part of?
Dr. Ison is linked to St. Marys Physician Services.
Does Dr. Keith Alan Ison accept Medicare?
Yes. CMS data shows Dr. Ison billed Medicare for 6,982 services in 2024, and Dr. Ison accepts Medicare assignment.
How many Medicare patients does Dr. Keith Alan Ison see?
CMS counts 631 Medicare patients who saw Dr. Ison in 2024, with an average age of 75.
What services does Dr. Keith Alan Ison bill to Medicare?
In 2024, Dr. Ison's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and surgery: heart and blood vessels (36415).
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Where did Dr. Keith Alan Ison go to medical school?
Dr. Ison graduated from University of Arkansas College of Medicine in 2001.
What drugs does Dr. Keith Alan Ison prescribe most?
In 2024 Medicare Part D data, Dr. Ison's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Lisinopril.
Has Dr. Keith Alan Ison received payments from drug or device companies?
CMS Open Payments shows $773 in general payments to Dr. Ison from 15 companies from 2016 to 2025. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. Keith Alan Ison been practicing?
Dr. Ison graduated from medical school in 2001, 25 years ago.
Does Dr. Keith Alan Ison do research?
Dmand AI links 2 publications to Dr. Ison, published from 2019 to 2023.
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