Cardiopulmonary BypassCoronary Artery BypassC-Reactive Protein
Dr. Karol Z. Kremens, MD
NPI1235314741PAC ID7618119371
- Medicare services, 2024
- 198
- Medicare patients, 2024
- 133
- Part D claims, 2024
- 21
- Publications
- 5
- Hospital affiliations
- 2
- Practice address
- 3000 32nd Ave S, Fargo, ND 58103
- Practice phone
- Call (701) 364-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Essentia Health-Fargo
Surgery Center - Not Medicare-Certified · Fargo, North Dakota
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Dr. Karol Z. Kremens is a pulmonologist in Fargo, North Dakota
Dr. Kremens practices at Essentia Health-Fargo in Fargo, North Dakota.
Dr. Kremens' NPI, 1235314741, was assigned on January 3, 2008. Dr. Kremens holds North Dakota license 12615.
NPI and contact details
- NPI
- 1235314741NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618119371
- NPI enumeration date
- January 3, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (701) 364-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karol Z. Kremens practices at Essentia Health-Fargo in Fargo, North Dakota
Dr. Kremens' primary practice is Essentia Health-Fargo, at 3000 32nd Ave S, Fargo, ND 58103. The practice phone is (701) 364-8000.
- Essentia Health-Fargo3000 32nd Ave S, Fargo, ND 58103Phone(701) 364-8000
Source: Dmand AI Affiliation Data
Dr. Karol Z. Kremens is affiliated with 4 sites of care and 1 medical group
Dr. Kremens' primary practice is Essentia Health-Fargo in Fargo, North Dakota. Dr. Kremens is also affiliated with Essentia Health-Fargo. The medical group on file is Essentia Health-Fargo. Dmand AI also links Dr. Kremens to 1 more hospital and 1 breast imaging center, each named with a free account.
Essentia Health-FargoPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Karol Z. Kremens' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kremens practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Essentia Health-Fargo | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karol Z. Kremens is one of 32 pulmonologists in North Dakota
Pulmonary disease is Dr. Kremens' primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Kremens is licensed in North Dakota.
Specialties and state licenses
- Pulmonary disease, North DakotaPrimary
Pulmonologists near Dr. Kremens
Counts of pulmonologists 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. Karol Z. Kremens billed Medicare for 198 services in 2024
CMS data shows 198 Medicare services from Dr. Kremens across 3 procedure codes in 2024, for 133 Medicare patients. Medicare paid $26,727 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024198
Medicare patients133
Paid by Medicare$26,727
Procedure codes3
Dr. Kremens' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2742024: 18632%
- Surgery
- 2023: 542024: 1278%
Dr. Kremens compared with the North Dakota median for pulmonologists, 2024
- Dr. Kremens
- North Dakota median
- Medicare services
- 198vs 51161% below
- Medicare patients
- 133vs 28653% below
- Part D claims
- 15vs 18892% below
Medians across 30 pulmonologists in North Dakota with Dmand AI profiles that report each measure.
Dr. Kremens' 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. Kremens?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kremens and other pulmonologists in North Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karol Z. Kremens treated 133 Medicare patients in 2024, average age 73
CMS counts 133 Medicare patients who saw Dr. Kremens in 2024. The largest group is 65 to 74, with 52 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 2.29, 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. Kremens' median patient age at 70, with 45% women.
Medicare patients, 2024133
Average age73
Average risk score2.29
Also on Medicaid23%
Dr. Kremens' Medicare patients by age, 2024
Dr. Kremens' Medicare patients by sex, 2024
- Women5642%
- Men7758%
Chronic conditions among Dr. Kremens' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease57%
- Heart failure53%
- Arthritis50%
- Chronic kidney disease50%
- Diabetes47%
- COPD41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kremens' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Karol Z. Kremens wrote 21 Medicare Part D claims in 2024
In 2024, Dr. Kremens wrote 21 Medicare Part D claims. 57% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $478 in total drug cost. In 2018, CMS named 28 claims across 2 drugs.
Part D claims, 202421
Drugs named by CMS1
Total drug cost$478
Dr. Kremens' Part D claims by kind of drug, 2024
- Generic12 claims57%
- Brand-name and other9 claims43%
Dr. Kremens' most prescribed drugs by claims, 2021
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, 2018 to 2021
- 2018
- 2021
- Claims for drugs CMS names
- 2018: 282021: 1546%
Drugs named by CMS: 1 in 2021, 2 in 2018.
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. Karol Z. Kremens takes part in Medicare
Dr. Kremens 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. Karol Z. Kremens has 5 publications on record
Dmand AI links 5 papers to Dr. Kremens, published from 2012 to 2016. Dr. Kremens' most frequent co-authors are Thomas J. Gross, MD, Jonathan M. Fine, MD and Ihab H. Hassan, MD.
Papers5
Years published2012 to 2016
Dr. Kremens' papers by year, 2012 to 2016
Dr. Kremens' most frequent co-authors
- Thomas J. Gross, MD2 shared papers
- Jonathan M. Fine, MD1 shared paper
- Ihab H. Hassan, MD1 shared paper
Recent publications by Dr. Kremens
Cell LineCpG IslandsDNA Methylation
Databases, GeneticDown-RegulationGene Expression Profiling
Chi-Square DistributionConnecticutHeart Arrest
Alveolitis, Extrinsic AllergicImmunologic FactorsRituximab
See who Dr. Kremens researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kremens works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Karol Z. Kremens received $1,766 in industry payments from 2016 to 2024
CMS Open Payments shows 11 general payments to Dr. Kremens from 4 drug and device companies from 2016 to 2024. Travel and lodging make up the largest share, 87% of the total. Ethicon Inc. paid the most, $1,683.
General payments to Dr. Kremens by program year, 2016 to 2024
General payments to Dr. Kremens by kind, 2016 to 2024
$1.8Kin total
- Travel and lodging$1,53987%
- Food and beverage$22713%
Companies that paid Dr. Kremens 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. Karol Z. Kremens'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 Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand 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) |
| 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) |
| 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. Karol Z. Kremens
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. Karol Z. Kremens' NPI number?
Dr. Karol Z. Kremens' NPI number is 1235314741. It was assigned on January 3, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Karol Z. Kremens?
Dr. Karol Z. Kremens is a pulmonologist in Fargo, North Dakota. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Karol Z. Kremens practice?
Dr. Kremens practices at 3000 32nd Ave S, Fargo, ND 58103. Dr. Kremens' primary practice is Essentia Health-Fargo in Fargo, North Dakota. Dmand AI also links Dr. Kremens to 1 hospital and 1 breast imaging center.
What is Dr. Karol Z. Kremens' office phone number?
The practice phone on file for Dr. Kremens is (701) 364-8000.
What is Dr. Karol Z. Kremens' medical license number?
Dr. Kremens holds North Dakota license 12615.
Which hospitals is Dr. Karol Z. Kremens affiliated with?
Dr. Kremens is affiliated with Essentia Health-Fargo. Dmand AI links Dr. Kremens to 1 more hospital.
What medical group is Dr. Karol Z. Kremens part of?
Dr. Kremens is linked to Essentia Health-Fargo.
Does Dr. Karol Z. Kremens accept Medicare?
Yes. CMS data shows Dr. Kremens billed Medicare for 198 services in 2024, and Dr. Kremens accepts Medicare assignment.
How many Medicare patients does Dr. Karol Z. Kremens see?
CMS counts 133 Medicare patients who saw Dr. Kremens in 2024, with an average age of 73.
What services does Dr. Karol Z. Kremens bill to Medicare?
In 2024, Dr. Kremens' most billed Medicare services were critical care (99291), hospital inpatient care (99232) and surgery: heart and blood vessels (36556).
Show 5 more questionsShow fewer questions
What drugs does Dr. Karol Z. Kremens prescribe most?
In 2021 Medicare Part D data, Dr. Kremens' most prescribed drugs by claims were Nystatin.
Has Dr. Karol Z. Kremens received payments from drug or device companies?
CMS Open Payments shows $1,766 in general payments to Dr. Kremens from 4 companies from 2016 to 2024. The largest total came from Ethicon Inc.
How long has Dr. Karol Z. Kremens been practicing?
Dr. Kremens graduated from medical school in 2004, 22 years ago.
Does Dr. Karol Z. Kremens do research?
Dmand AI links 5 publications to Dr. Kremens, published from 2012 to 2016.
Who does Dr. Karol Z. Kremens publish with?
Dr. Kremens' most frequent co-authors are Thomas J. Gross, MD (2 shared papers), Jonathan M. Fine, MD (1 shared paper) and Ihab H. Hassan, MD (1 shared paper).
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