Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mariola U Grzeszczyk, APRN

Individual provider Family Nurse Practitioner · NPI 1003425463

Mariola U Grzeszczyk, APRN is a Nurse Practitioner in Rockford, Illinois. Qualified in 2019, 7 years ago. Practices with Midwest Express Care 2, Inc, a 219-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
7
Licensed in
IL
In the registry since
2020
Specialties on file
3
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

See every abbreviation used in this directory →

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Practice location Address checks out

5875 E Riverside Blvd
Rockford, IL 61114-4937
Phone: (815) 398-9491
Fax: (815) 381-7498
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 5140 N California Ave Ste 575, Chicago, IL 60625-7065 — (773) 878-6200
  • 40 75th St, Willowbrook, IL 60527-2325 — (630) 581-5372

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 209022930 (IL)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 2019055819 (IL)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 209022930 (IL)

Record details

NPI number1003425463
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN
Sole proprietorNo
NPI enumeratedJuly 30, 2020
Last updated in NPPESFebruary 28, 2025
Certification dateFebruary 28, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Midwest Express Care 2, Inc — 219 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients90
Services billed 239 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Osf Saint Katharine Medical Center Hospital · Dixon, IL

Colleagues at Midwest Express Care 2, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 219 clinicians in the practice; 12 are shown here.

Other providers in Rockford