Dr. Katherine A. Jelinek, MD
- Medicare services, 2024
- 851
- Medicare patients, 2024
- 475
- Part D claims, 2024
- 822
- Publications
- 3
- MIPS score, 2024
- 95
- Practice address
- 25 North Winfield Road, Winfield, IL 60190
- Practice phone
- Call (630) 682-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Jelinek'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. Katherine A. Jelinek is a gastroenterologist in Winfield, Illinois
Dr. Jelinek practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare.
Dr. Jelinek's NPI, 1750468591, was assigned on November 1, 2006. Dr. Jelinek graduated from University of Texas Southwestern Medical School at Dallas in 2000. Dr. Jelinek holds Illinois license 036-108039.
- NPI
- 1750468591NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618062183
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (630) 682-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine A. Jelinek practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois
Dr. Jelinek's primary practice is Northwestern Medicine Central DuPage Hospital, at 25 North Winfield Road, Winfield, IL 60190 in Du Page County. The practice phone is (630) 682-1600.
- Northwestern Medicine Central DuPage Hospital25 North Winfield Road, Winfield, IL 60190 · Du Page CountyPhone(630) 682-1600
Source: Dmand AI Affiliation Data
Dr. Katherine A. Jelinek is affiliated with 8 sites of care and 2 medical groups
Dr. Jelinek's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dr. Jelinek is also affiliated with Northwestern Medicine McHenry Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Jelinek to 2 more hospitals, 2 group practices and clinics, 1 breast imaging center, 1 clinical lab and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katherine A. Jelinek's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Jelinek practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Central DuPage Hospital | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Northwestern Memorial HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Katherine A. Jelinek is one of 771 gastroenterologists in Illinois
Gastroenterology is Dr. Jelinek's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Jelinek is licensed in Illinois.
Specialties and state licenses
- Gastroenterology, IllinoisPrimary
Gastroenterologists near Dr. Jelinek
Counts of gastroenterologists 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. Katherine A. Jelinek billed Medicare for 851 services in 2024
CMS data shows 851 Medicare services from Dr. Jelinek across 15 procedure codes in 2024, for 475 Medicare patients. Medicare paid $98,508 for them.
Dr. Jelinek's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 4892024: 4992%
- Office and hospital visits
- 2023: 3752024: 33910%
- Other services
- 2023: 142024: 137%
Where Dr. Jelinek's Medicare services took place, 2024
- In an office17320%
- In a facility67880%
Dr. Jelinek compared with the Illinois median for gastroenterologists, 2024
- Dr. Jelinek
- Illinois median
- Medicare services
- 851vs 49871% above
- Medicare patients
- 475vs 30755% above
- Part D claims
- 702vs 37090% above
Medians across 757 gastroenterologists in Illinois with Dmand AI profiles that report each measure.
Dr. Jelinek'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Jelinek and other gastroenterologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katherine A. Jelinek treated 475 Medicare patients in 2024, average age 74
CMS counts 475 Medicare patients who saw Dr. Jelinek in 2024. The largest group is 65 to 74, with 248 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 11% are also on Medicaid. Their average risk score is 1.30, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Jelinek's median patient age at 69, with 74% women.
Dr. Jelinek's Medicare patients by age, 2024
Dr. Jelinek's Medicare patients by sex, 2024
- Women36076%
- Men11524%
Chronic conditions among Dr. Jelinek's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis52%
- Anxiety36%
- Mood disorders30%
- Depression27%
- Diabetes27%
- Ischemic heart disease27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Jelinek's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women74%
- Men25%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katherine A. Jelinek wrote 822 Medicare Part D claims in 2024
In 2024, Dr. Jelinek wrote 822 Medicare Part D claims for 332 patients. 82% of them were for generic drugs. CMS names the drug for 702 of them, across 12 drugs with 11 or more claims each, at $464,487 in total drug cost. In 2023, CMS named 691 claims across 12 drugs.
Dr. Jelinek's Part D claims by kind of drug, 2024
- Generic677 claims82%
- Brand-name145 claims18%
Dr. Jelinek'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. Jelinek's Part D claims, 2024
- Antibiotics2%17 of 822 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: 6912024: 7022%
Drugs named by CMS: 12 in 2024, 12 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
Dr. Katherine A. Jelinek scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Jelinek for performance year 2024, reported through an alternative payment model (APM). Dr. Jelinek accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Jelinek as offering telehealth. CMS counts 156 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Jelinek, more than 86% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Jelinek's MIPS scores, performance year 2024
- 95of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Jelinek ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 86th percentile156 procedures
- Colonoscopy
- 82nd percentile109 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Katherine A. Jelinek has 3 publications on record
Dmand AI links 3 papers to Dr. Jelinek in 2014. 2014 was the busiest year, with 2. Dr. Jelinek's most frequent co-authors are Yezaz Ahmed Ghouri, MD, Andrew Wright Dupont, MD and Joseph Timothy Krill, MD.
Dr. Jelinek's most frequent co-authors
- Yezaz Ahmed Ghouri, MD2 shared papers
- Andrew Wright Dupont, MD1 shared paper
- Joseph Timothy Krill, MD1 shared paper
Recent publications by Dr. Jelinek
ACG Case Rep J
See who Dr. Jelinek researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Jelinek works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Katherine A. Jelinek received $682 in industry payments from 2017 to 2025
CMS Open Payments shows 9 general payments to Dr. Jelinek from 4 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $501.
General payments to Dr. Jelinek by program year, 2017 to 2025
Companies that paid Dr. Jelinek the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Katherine A. Jelinek graduated from University of Texas Southwestern Medical School at Dallas
Dr. Jelinek graduated from University of Texas Southwestern Medical School at Dallas in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katherine A. Jelinek'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Katherine A. Jelinek
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. Katherine A. Jelinek's NPI number?
Dr. Katherine A. Jelinek's NPI number is 1750468591. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine A. Jelinek?
Dr. Katherine A. Jelinek is a gastroenterologist in Winfield, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Katherine A. Jelinek practice?
Dr. Jelinek practices at 25 North Winfield Road, Winfield, IL 60190. Dr. Jelinek's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Jelinek to 2 hospitals, 2 group practices and clinics, 1 breast imaging center, 1 clinical lab and 1 medical group.
What is Dr. Katherine A. Jelinek's office phone number?
The practice phone on file for Dr. Jelinek is (630) 682-1600.
What is Dr. Katherine A. Jelinek's medical license number?
Dr. Jelinek holds Illinois license 036-108039.
Which hospitals is Dr. Katherine A. Jelinek affiliated with?
Dr. Jelinek practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois. Dr. Jelinek is also affiliated with Northwestern Medicine McHenry Hospital. Dmand AI links Dr. Jelinek to 2 more hospitals.
What medical group is Dr. Katherine A. Jelinek part of?
Dr. Jelinek is linked to Northwestern Medical Faculty Foundation. Dmand AI links Dr. Jelinek to 1 more medical group.
Does Dr. Katherine A. Jelinek accept Medicare?
Yes. CMS data shows Dr. Jelinek billed Medicare for 851 services in 2024, and Dr. Jelinek accepts Medicare assignment.
Does Dr. Katherine A. Jelinek offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Jelinek as offering telehealth services.
What is Dr. Katherine A. Jelinek's MIPS score?
Dr. Jelinek's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Katherine A. Jelinek see?
CMS counts 475 Medicare patients who saw Dr. Jelinek in 2024, with an average age of 74.
What services does Dr. Katherine A. Jelinek bill to Medicare?
In 2024, Dr. Jelinek's most billed Medicare services were surgery: digestive system (45380), surgery: digestive system (43239) and surgery: digestive system (45385).
Where did Dr. Katherine A. Jelinek go to medical school?
Dr. Jelinek graduated from University of Texas Southwestern Medical School at Dallas in 2000.
What drugs does Dr. Katherine A. Jelinek prescribe most?
In 2024 Medicare Part D data, Dr. Jelinek's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Peg 3350-Electrolyte.
Has Dr. Katherine A. Jelinek received payments from drug or device companies?
CMS Open Payments shows $682 in general payments to Dr. Jelinek from 4 companies from 2017 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Katherine A. Jelinek been practicing?
Dr. Jelinek graduated from medical school in 2000, 26 years ago.
Does Dr. Katherine A. Jelinek do research?
Dmand AI links 3 publications to Dr. Jelinek.
Who does Dr. Katherine A. Jelinek publish with?
Dr. Jelinek's most frequent co-authors are Yezaz Ahmed Ghouri, MD (2 shared papers), Andrew Wright Dupont, MD (1 shared paper) and Joseph Timothy Krill, MD (1 shared paper).
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