Katarzyna Rojek

  • Maywood, IL
  • Internist
NPI1831688316PAC ID3577818335
Medicare services, 2024
208
Medicare patients, 2024
98
Part D claims, 2024
2,555
Hospital affiliations
2
Industry payments
$12
Practice address
2160 S 1st Avenue, Maywood, IL 60153
Practice phone
Call (708) 216-3299
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Loyola Medicine Pediatric Mobile Health Unit

Mobile Lab · Maywood, Illinois

See all 4 affiliations

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Katarzyna Rojek is an internist in Maywood, Illinois

Katarzyna Rojek practices at Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois.

Katarzyna Rojek's NPI, 1831688316, was assigned on May 9, 2018. Katarzyna Rojek holds Illinois license 036156586.

NPI and contact details
Medicare PAC ID
3577818335
NPI enumeration date
May 9, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(708) 216-3299
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
34
Medical school graduation
2018

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Katarzyna Rojek practices at Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois

Katarzyna Rojek's primary practice is Loyola Medicine Pediatric Mobile Health Unit, at 2160 S 1st Avenue, Maywood, IL 60153. The practice phone is (708) 216-3299.

  • Loyola Medicine Pediatric Mobile Health Unit
    2160 S 1st Avenue, Maywood, IL 60153Phone(708) 216-3299

Source: Dmand AI Affiliation Data

Katarzyna Rojek is affiliated with 3 sites of care and 1 medical group

Katarzyna Rojek's primary practice is Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois. Katarzyna Rojek is also affiliated with Loyola University Medical Center. The medical group on file is Loyola University Medical Center. Dmand AI also links Katarzyna Rojek to 1 more hospital, named with a free account. Katarzyna Rojek's employer is on file too: a clinical lab.

See all 4 affiliations for Katarzyna Rojek

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Katarzyna Rojek's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Katarzyna Rojek practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Loyola Medicine Pediatric Mobile Health UnitAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Katarzyna Rojek is one of 5,652 internists in Illinois

Internal medicine is Katarzyna Rojek's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Katarzyna Rojek is licensed in Illinois.

Specialties and state licenses

  • Internal medicine, IllinoisPrimaryLicense 036156586 · taxonomy 207R00000X

Internists near Katarzyna Rojek

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

Katarzyna Rojek billed Medicare for 208 services in 2024

CMS data shows 208 Medicare services from Katarzyna Rojek across 4 procedure codes in 2024, for 98 Medicare patients. Medicare paid $15,220 for them. Every service was in an office.

Medicare services, 2024208
Medicare patients98
Paid by Medicare$15,220
Procedure codes4

Katarzyna Rojek's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1282024: 1225%
Other services
2023: 212024: 86310%

Katarzyna Rojek compared with the Illinois median for internists, 2024

  • Katarzyna Rojek
  • Illinois median
Medicare services
208vs 56663% below
Medicare patients
98vs 20853% below
Part D claims
1,997vs 2847.0 times

Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.

Katarzyna Rojek'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.

See all procedures by Katarzyna Rojek

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Katarzyna Rojek treated 98 Medicare patients in 2024, average age 73

CMS counts 98 Medicare patients who saw Katarzyna Rojek in 2024. The largest group is 65 to 74, with 49 patients. 63% of them have high blood pressure, and 61% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.03, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Katarzyna Rojek's median patient age at 64, with 78% women.

Medicare patients, 202498
Average age73
Average risk score1.03
Also on Medicaid23%

Katarzyna Rojek's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Katarzyna Rojek's Medicare patients by sex, 2024

  • Women8183%
  • Men1717%

Chronic conditions among Katarzyna Rojek's Medicare patients, 2024

  1. High blood pressure63%
  2. High cholesterol61%
  3. Arthritis49%
  4. Diabetes35%
  5. Ischemic heart disease22%
  6. Mood disorders21%
  7. Anxiety18%
  8. Depression17%

Share of Medicare patients with each condition. A patient can have several.

Katarzyna Rojek's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women78%
  • Men20%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Katarzyna Rojek wrote 2,555 Medicare Part D claims in 2024

In 2024, Katarzyna Rojek wrote 2,555 Medicare Part D claims for 316 patients. 86% of them were for generic drugs. CMS names the drug for 1,997 of them, across 67 drugs with 11 or more claims each, at $191,132 in total drug cost. In 2023, CMS named 1,644 claims across 54 drugs.

Part D claims, 20242,555
Drugs named by CMS67
Total drug cost$191,132
Part D patients316

Katarzyna Rojek's Part D claims by kind of drug, 2024

  • Generic2,190 claims86%
  • Brand-name337 claims13%
  • Other28 claims1%

Katarzyna Rojek'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 Katarzyna Rojek's Part D claims, 2024

  • Opioids2%56 of 2,555 claims
  • Antibiotics2%58 of 2,555 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: 1,6442024: 1,99721%

Drugs named by CMS: 67 in 2024, 54 in 2023.

See all prescribing by Katarzyna Rojek

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 Katarzyna Rojek takes part in Medicare

Katarzyna Rojek 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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Katarzyna Rojek received $12 in industry payments in 2022

CMS Open Payments shows 1 general payment to Katarzyna Rojek from 1 drug or device company in 2022. Education make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $12.

Companies that paid Katarzyna Rojek the most, 2022 to 2022

Share is of all general payments to this clinician.

See all payments to Katarzyna Rojek

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Katarzyna Rojek's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Katarzyna Rojek

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Katarzyna Rojek's NPI number?

Katarzyna Rojek's NPI number is 1831688316. It was assigned on May 9, 2018, and it is active in the NPI Registry.

What does Katarzyna Rojek specialize in?

Katarzyna Rojek is an internist in Maywood, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Katarzyna Rojek practice?

Katarzyna Rojek practices at 2160 S 1st Avenue, Maywood, IL 60153. Katarzyna Rojek's primary practice is Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois. Dmand AI also links Katarzyna Rojek to 1 hospital.

What is Katarzyna Rojek's office phone number?

The practice phone on file for Katarzyna Rojek is (708) 216-3299.

What is Katarzyna Rojek's medical license number?

Katarzyna Rojek holds Illinois license 036156586.

Which hospitals is Katarzyna Rojek affiliated with?

Katarzyna Rojek is affiliated with Loyola University Medical Center. Dmand AI links Katarzyna Rojek to 1 more hospital.

What medical group is Katarzyna Rojek part of?

Katarzyna Rojek is linked to Loyola University Medical Center.

Does Katarzyna Rojek accept Medicare?

Yes. CMS data shows Katarzyna Rojek billed Medicare for 208 services in 2024, and Katarzyna Rojek accepts Medicare assignment.

How many Medicare patients does Katarzyna Rojek see?

CMS counts 98 Medicare patients who saw Katarzyna Rojek in 2024, with an average age of 73.

What services does Katarzyna Rojek bill to Medicare?

In 2024, Katarzyna Rojek's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G2211).

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What drugs does Katarzyna Rojek prescribe most?

In 2024 Medicare Part D data, Katarzyna Rojek's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.

Has Katarzyna Rojek received payments from drug or device companies?

CMS Open Payments shows $12 in general payments to Katarzyna Rojek from 1 company from 2022 to 2022. The largest total came from Eli Lilly and Company.

How long has Katarzyna Rojek been practicing?

Katarzyna Rojek graduated from medical school in 2018, 8 years ago.

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