Dr. Gudjon Karlsson, MD
- Medicare services, 2024
- 134
- Medicare patients, 2024
- 155
- Part D claims, 2024
- 2,328
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 2900 First Avenue, 2E, Huntington, WV 25702
- Practice phone
- Call (304) 399-2600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Karlsson'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. Gudjon Karlsson is an interventional cardiologist in Huntington, West Virginia
Dr. Karlsson practices at Cornerstone Specialty Hospitals Huntington in Huntington, West Virginia, part of ScionHealth.
Dr. Karlsson's NPI, 1235558339, was assigned on April 16, 2014. Dr. Karlsson holds West Virginia license 25239.
- NPI
- 1235558339NPI Registry (opens in a new tab)
- NPI enumeration date
- April 16, 2014
- NPI status
- Active
- Practice phone
- (304) 399-2600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gudjon Karlsson practices at Cornerstone Specialty Hospitals Huntington in Huntington, West Virginia
Dr. Karlsson's primary practice is Cornerstone Specialty Hospitals Huntington, at 2900 First Avenue, 2E, Huntington, WV 25702 in Cabell County. The practice phone is (304) 399-2600.
- Cornerstone Specialty Hospitals Huntington2900 First Avenue, 2E, Huntington, WV 25702 · Cabell CountyPhone(304) 399-2600
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gudjon Karlsson is affiliated with 1 site of care and 1 medical group
Dr. Karlsson's primary practice is Cornerstone Specialty Hospitals Huntington in Huntington, West Virginia, part of ScionHealth. The medical group on file is St. Mary's Medical Center - Huntington, WV.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gudjon Karlsson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karlsson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cornerstone Specialty Hospitals Huntington | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gudjon Karlsson is one of 53 interventional cardiologists in West Virginia
Interventional cardiology is Dr. Karlsson's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Karlsson is licensed in West Virginia.
Specialties and state licenses
- Interventional cardiology, West VirginiaPrimary
Interventional cardiologists near Dr. Karlsson
Counts of interventional cardiologists 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. Gudjon Karlsson billed Medicare for 134 services in 2024
CMS data shows 134 Medicare services from Dr. Karlsson across 3 procedure codes in 2024, for 155 Medicare patients. Medicare paid $2,397 for them.
Dr. Karlsson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3112024: 10292%
- Tests and treatments
- 2023: 2,0152024: 3298%
- Imaging
- 2023: 1172024: 0100%
- Other services
- 2023: 1002024: 0100%
Where Dr. Karlsson's Medicare services took place, 2024
- In an office11888%
- In a facility1612%
Dr. Karlsson compared with the West Virginia median for interventional cardiologists, 2024
- Dr. Karlsson
- West Virginia median
- Medicare services
- 134vs 1,85293% below
- Medicare patients
- 155vs 91483% below
- Part D claims
- 2,162vs 1,58836% above
Medians across 52 interventional cardiologists in West Virginia with Dmand AI profiles that report each measure.
Dr. Karlsson'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. Karlsson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Karlsson and other interventional cardiologists in West Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gudjon Karlsson treated 155 Medicare patients in 2024, average age 77
CMS counts 155 Medicare patients who saw Dr. Karlsson in 2024. The largest group is 75 to 84, with 61 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Karlsson's median patient age at 74, with 46% women.
Dr. Karlsson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Karlsson's Medicare patients by sex, 2024
- Women8555%
- Men7045%
Chronic conditions among Dr. Karlsson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease73%
- Arthritis61%
- Diabetes47%
- Atrial fibrillation45%
- Heart failure45%
- Chronic kidney disease35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Karlsson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women46%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gudjon Karlsson wrote 2,328 Medicare Part D claims in 2024
In 2024, Dr. Karlsson wrote 2,328 Medicare Part D claims for 529 patients. 88% of them were for generic drugs. CMS names the drug for 2,162 of them, across 27 drugs with 11 or more claims each, at $233,334 in total drug cost. In 2023, CMS named 4,635 claims across 39 drugs.
Dr. Karlsson's Part D claims by kind of drug, 2024
- Generic2,052 claims88%
- Brand-name276 claims12%
Dr. Karlsson'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,6352024: 2,16253%
Drugs named by CMS: 27 in 2024, 39 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
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Dr. Gudjon Karlsson has 1 publication on record
Dmand AI links 1 paper to Dr. Karlsson in 2022. Dr. Karlsson's most frequent co-author is Olusola Tope Olubowale, MD.
Dr. Karlsson's most frequent co-authors
Recent publications by Dr. Karlsson
See who Dr. Karlsson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Karlsson works with, so you can find a warm path to the right interventional cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gudjon Karlsson received $10,803 in industry payments from 2016 to 2024
CMS Open Payments shows 868 general payments to Dr. Karlsson from 48 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $1,513.
General payments to Dr. Karlsson by program year, 2016 to 2024
General payments to Dr. Karlsson by kind, 2016 to 2024
- Food and beverage$10,750100%
- Education$530%
Companies that paid Dr. Karlsson the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gudjon Karlsson'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 | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy 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) |
| 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) |
| 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. Gudjon Karlsson
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. Gudjon Karlsson's NPI number?
Dr. Gudjon Karlsson's NPI number is 1235558339. It was assigned on April 16, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Gudjon Karlsson?
Dr. Gudjon Karlsson is an interventional cardiologist in Huntington, West Virginia. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).
Where does Dr. Gudjon Karlsson practice?
Dr. Karlsson practices at 2900 First Avenue, 2E, Huntington, WV 25702. Dr. Karlsson's primary practice is Cornerstone Specialty Hospitals Huntington in Huntington, West Virginia, part of ScionHealth.
What is Dr. Gudjon Karlsson's office phone number?
The practice phone on file for Dr. Karlsson is (304) 399-2600.
What is Dr. Gudjon Karlsson's medical license number?
Dr. Karlsson holds West Virginia license 25239.
Which hospitals is Dr. Gudjon Karlsson affiliated with?
Dr. Karlsson practices at Cornerstone Specialty Hospitals Huntington in Huntington, West Virginia.
What medical group is Dr. Gudjon Karlsson part of?
Dr. Karlsson is linked to St. Mary's Medical Center - Huntington, WV.
Does Dr. Gudjon Karlsson accept Medicare?
Yes. CMS data shows Dr. Karlsson billed Medicare for 134 services in 2024.
How many Medicare patients does Dr. Gudjon Karlsson see?
CMS counts 155 Medicare patients who saw Dr. Karlsson in 2024, with an average age of 77.
What services does Dr. Gudjon Karlsson bill to Medicare?
In 2024, Dr. Karlsson's most billed Medicare services were office visit, established patient (99213), heart test or procedure (93306) and office visit, established patient (99214).
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What drugs does Dr. Gudjon Karlsson prescribe most?
In 2024 Medicare Part D data, Dr. Karlsson's most prescribed drugs by claims were Metoprolol Succinate, Clopidogrel and Rosuvastatin Calcium.
Has Dr. Gudjon Karlsson received payments from drug or device companies?
CMS Open Payments shows $10,803 in general payments to Dr. Karlsson from 48 companies from 2016 to 2024. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has Dr. Gudjon Karlsson been practicing?
Dr. Karlsson graduated from medical school in 1994, 32 years ago.
Does Dr. Gudjon Karlsson do research?
Dmand AI links 1 publication to Dr. Karlsson.
Who does Dr. Gudjon Karlsson publish with?
Dr. Karlsson's most frequent co-authors are Olusola Tope Olubowale, MD (1 shared paper).
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