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KATARZYNA KACZMARCZYK M.D.
NPI 1275979692
Internal Medicine - Critical Care Medicine in Winfield, IL

Active since May 13, 2013PECOS EnrolledAccepts Medicare Assignment
25 N WINFIELD RD STE 202, WINFIELD, IL 60190(630) 933-4700(630) 933-4427 Get Directions Write a Review

NPPES record last updated: October 30, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 30, 2023, Dec 29, 2020, Oct 20, 2020 and 1 more (4 updates tracked since 2020).

About Katarzyna Kaczmarczyk M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATARZYNA KACZMARCZYK M.D. (NPI 1275979692) is an individual critical care medicine provider in Winfield, Illinois, licensed in Illinois (036164796) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Delnor Community Hospital, and maintains a secondary practice location in Nampa.

NPPES Registry Identity

NPI1275979692
Entity TypeIndividualFemale
Primary Taxonomy207RC0200X
Provider Legal NameKATARZYNA KACZMARCZYKCredential: M.D.
Location Address25 N WINFIELD RD STE 202Winfield, IL 60190-1379
Mailing Address25 N Winfield Rd Ste 202Winfield, IL 60190-1379 · (630) 933-4700 · Fax (630) 933-4427
Phone(630) 933-4700
Fax(630) 933-4427
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateMay 13, 2013
Last NPPES UpdateOctober 30, 20234 updates tracked since enumeration
NPPES CertifiedOctober 30, 2023
✔ NPI 1275979692 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in IL · 036164796
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License M-15136 (ID), MD201505 (OR)
25 N WINFIELD RD STE 202, Winfield, IL 60190
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Secondary Practice Location 1

Location 14400 E Flamingo Ave, Ste 200Nampa, ID 83687 · Phone (208) 302-2100 · Fax (208) 302-2125

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Select Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Katarzyna Kaczmarczyk M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5092139485
PECOS Enrollment IDI20230830003075
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Katarzyna Kaczmarczyk reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Central Dupage Physician Group
4.1 mi
Family Medicine
5777 DEPARTMENT
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 1,664 clinicians in this Medicare group
NPI 1033149844 (630) 933-3300
Mercy Clinic Springfield Communities
425 mi
Family Medicine
3231 S NATIONAL AVE STE 220
Springfield, MO 65807
  • Reassigned Medicare billing, Missouri enrollment
  • 1,565 clinicians in this Medicare group
NPI 1245277631 (855) 420-7900

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
69 services67 patients
Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
37 services37 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
22 services22 patients
Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556
This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.
14 services14 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwestern Medicine Delnor Community Hospital

Acute Care Hospitals · Geneva, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140211
Location300 Randall RdGeneva, IL 60134 · Kane County
Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60190 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers14 claims14 services$16.24 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
1 supplier25 claims25 services$4.66 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
5 suppliers57 claims57 services$84.53 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
5 suppliers40 claims40 services$36.05 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANIKA HUQ
Hospitalist
25 N WINFIELD RD STE 202
WINFIELD, IL 60190
Dupage County (630) 933-4700
DR. KASHIF A JANJUA M.D.
Hospitalist
25 N WINFIELD RD STE 202
WINFIELD, IL 60190
Dupage County (630) 933-4700
DR. JIMMY SUVATNE M.D.
Internal Medicine (Critical Care Medicine)
25 N WINFIELD RD STE 202
WINFIELD, IL 60190
Dupage County (630) 933-4700
JONATHAN WANG M.D.
Hospitalist
25 N WINFIELD RD STE 202
WINFIELD, IL 60190
Dupage County (630) 933-7822

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katarzyna Kaczmarczyk's NPI number?

The NPI number for Katarzyna Kaczmarczyk is 1275979692. It was assigned to this individual provider in the NPPES registry on May 13, 2013.

Where is Katarzyna Kaczmarczyk located?

Katarzyna Kaczmarczyk practices at 25 N Winfield Rd Ste 202, Winfield, IL 60190. The listed phone number is (630) 933-4700.

What is Katarzyna Kaczmarczyk's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Katarzyna Kaczmarczyk enrolled in Medicare?

Yes. Katarzyna Kaczmarczyk is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Katarzyna Kaczmarczyk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katarzyna Kaczmarczyk reassigns Medicare benefits to 2 organizations: Central Dupage Physician Group (Carol Stream, IL) and Mercy Clinic Springfield Communities (Springfield, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katarzyna Kaczmarczyk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katarzyna Kaczmarczyk accept?

Health plans from Select Health list Katarzyna Kaczmarczyk as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Katarzyna Kaczmarczyk affiliated with any hospitals?

According to CMS data, Katarzyna Kaczmarczyk is affiliated with Northwestern Medicine Delnor Community Hospital and Northwestern Medicine Central Dupage Hospital.

When was this NPI record last updated?

The NPPES record for Katarzyna Kaczmarczyk was last updated on October 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.